Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* toke.c |
a687059c | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
378cc40b | 7 | * |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "It all comes from here, the stench and the peril." --Frodo | |
378cc40b LW |
12 | */ |
13 | ||
9cbb5ea2 GS |
14 | /* |
15 | * This file is the lexer for Perl. It's closely linked to the | |
4e553d73 | 16 | * parser, perly.y. |
ffb4593c NT |
17 | * |
18 | * The main routine is yylex(), which returns the next token. | |
19 | */ | |
20 | ||
378cc40b | 21 | #include "EXTERN.h" |
864dbfa3 | 22 | #define PERL_IN_TOKE_C |
378cc40b | 23 | #include "perl.h" |
378cc40b | 24 | |
d3b6f988 GS |
25 | #define yychar PL_yychar |
26 | #define yylval PL_yylval | |
27 | ||
fc36a67e | 28 | static char ident_too_long[] = "Identifier too long"; |
8903cb82 | 29 | |
51371543 | 30 | static void restore_rsfp(pTHXo_ void *f); |
6e3aabd6 GS |
31 | #ifndef PERL_NO_UTF16_FILTER |
32 | static I32 utf16_textfilter(pTHXo_ int idx, SV *sv, int maxlen); | |
33 | static I32 utf16rev_textfilter(pTHXo_ int idx, SV *sv, int maxlen); | |
34 | #endif | |
51371543 | 35 | |
9059aa12 LW |
36 | #define XFAKEBRACK 128 |
37 | #define XENUMMASK 127 | |
38 | ||
7e2040f0 | 39 | /*#define UTF (SvUTF8(PL_linestr) && !(PL_hints & HINT_BYTE))*/ |
a0ed51b3 LW |
40 | #define UTF (PL_hints & HINT_UTF8) |
41 | ||
4e553d73 | 42 | /* In variables name $^X, these are the legal values for X. |
2b92dfce GS |
43 | * 1999-02-27 mjd-perl-patch@plover.com */ |
44 | #define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x))) | |
45 | ||
bf4acbe4 GS |
46 | /* On MacOS, respect nonbreaking spaces */ |
47 | #ifdef MACOS_TRADITIONAL | |
48 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\312'||(c)=='\t') | |
49 | #else | |
50 | #define SPACE_OR_TAB(c) ((c)==' '||(c)=='\t') | |
51 | #endif | |
52 | ||
ffb4593c NT |
53 | /* LEX_* are values for PL_lex_state, the state of the lexer. |
54 | * They are arranged oddly so that the guard on the switch statement | |
79072805 LW |
55 | * can get by with a single comparison (if the compiler is smart enough). |
56 | */ | |
57 | ||
fb73857a | 58 | /* #define LEX_NOTPARSING 11 is done in perl.h. */ |
59 | ||
55497cff | 60 | #define LEX_NORMAL 10 |
61 | #define LEX_INTERPNORMAL 9 | |
62 | #define LEX_INTERPCASEMOD 8 | |
63 | #define LEX_INTERPPUSH 7 | |
64 | #define LEX_INTERPSTART 6 | |
65 | #define LEX_INTERPEND 5 | |
66 | #define LEX_INTERPENDMAYBE 4 | |
67 | #define LEX_INTERPCONCAT 3 | |
68 | #define LEX_INTERPCONST 2 | |
69 | #define LEX_FORMLINE 1 | |
70 | #define LEX_KNOWNEXT 0 | |
79072805 | 71 | |
79072805 LW |
72 | #ifdef ff_next |
73 | #undef ff_next | |
d48672a2 LW |
74 | #endif |
75 | ||
a1a0e61e | 76 | #ifdef USE_PURE_BISON |
dba4d153 JH |
77 | # ifndef YYMAXLEVEL |
78 | # define YYMAXLEVEL 100 | |
79 | # endif | |
20141f0e IRC |
80 | YYSTYPE* yylval_pointer[YYMAXLEVEL]; |
81 | int* yychar_pointer[YYMAXLEVEL]; | |
6f202aea | 82 | int yyactlevel = -1; |
22c35a8c GS |
83 | # undef yylval |
84 | # undef yychar | |
20141f0e IRC |
85 | # define yylval (*yylval_pointer[yyactlevel]) |
86 | # define yychar (*yychar_pointer[yyactlevel]) | |
87 | # define PERL_YYLEX_PARAM yylval_pointer[yyactlevel],yychar_pointer[yyactlevel] | |
4e553d73 | 88 | # undef yylex |
dba4d153 | 89 | # define yylex() Perl_yylex_r(aTHX_ yylval_pointer[yyactlevel],yychar_pointer[yyactlevel]) |
a1a0e61e TD |
90 | #endif |
91 | ||
79072805 | 92 | #include "keywords.h" |
fe14fcc3 | 93 | |
ffb4593c NT |
94 | /* CLINE is a macro that ensures PL_copline has a sane value */ |
95 | ||
ae986130 LW |
96 | #ifdef CLINE |
97 | #undef CLINE | |
98 | #endif | |
57843af0 | 99 | #define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline)) |
3280af22 | 100 | |
ffb4593c NT |
101 | /* |
102 | * Convenience functions to return different tokens and prime the | |
9cbb5ea2 | 103 | * lexer for the next token. They all take an argument. |
ffb4593c NT |
104 | * |
105 | * TOKEN : generic token (used for '(', DOLSHARP, etc) | |
106 | * OPERATOR : generic operator | |
107 | * AOPERATOR : assignment operator | |
108 | * PREBLOCK : beginning the block after an if, while, foreach, ... | |
109 | * PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref) | |
110 | * PREREF : *EXPR where EXPR is not a simple identifier | |
111 | * TERM : expression term | |
112 | * LOOPX : loop exiting command (goto, last, dump, etc) | |
113 | * FTST : file test operator | |
114 | * FUN0 : zero-argument function | |
2d2e263d | 115 | * FUN1 : not used, except for not, which isn't a UNIOP |
ffb4593c NT |
116 | * BOop : bitwise or or xor |
117 | * BAop : bitwise and | |
118 | * SHop : shift operator | |
119 | * PWop : power operator | |
9cbb5ea2 | 120 | * PMop : pattern-matching operator |
ffb4593c NT |
121 | * Aop : addition-level operator |
122 | * Mop : multiplication-level operator | |
123 | * Eop : equality-testing operator | |
e5edeb50 | 124 | * Rop : relational operator <= != gt |
ffb4593c NT |
125 | * |
126 | * Also see LOP and lop() below. | |
127 | */ | |
128 | ||
075953c3 JH |
129 | /* Note that REPORT() and REPORT2() will be expressions that supply |
130 | * their own trailing comma, not suitable for statements as such. */ | |
998054bd | 131 | #ifdef DEBUGGING /* Serve -DT. */ |
075953c3 JH |
132 | # define REPORT(x,retval) tokereport(x,s,(int)retval), |
133 | # define REPORT2(x,retval) tokereport(x,s, yylval.ival), | |
998054bd | 134 | #else |
075953c3 JH |
135 | # define REPORT(x,retval) |
136 | # define REPORT2(x,retval) | |
998054bd SC |
137 | #endif |
138 | ||
075953c3 JH |
139 | #define TOKEN(retval) return (REPORT2("token",retval) PL_bufptr = s,(int)retval) |
140 | #define OPERATOR(retval) return (REPORT2("operator",retval) PL_expect = XTERM, PL_bufptr = s,(int)retval) | |
141 | #define AOPERATOR(retval) return ao((REPORT2("aop",retval) PL_expect = XTERM, PL_bufptr = s,(int)retval)) | |
142 | #define PREBLOCK(retval) return (REPORT2("preblock",retval) PL_expect = XBLOCK,PL_bufptr = s,(int)retval) | |
143 | #define PRETERMBLOCK(retval) return (REPORT2("pretermblock",retval) PL_expect = XTERMBLOCK,PL_bufptr = s,(int)retval) | |
144 | #define PREREF(retval) return (REPORT2("preref",retval) PL_expect = XREF,PL_bufptr = s,(int)retval) | |
145 | #define TERM(retval) return (CLINE, REPORT2("term",retval) PL_expect = XOPERATOR, PL_bufptr = s,(int)retval) | |
146 | #define LOOPX(f) return(yylval.ival=f, REPORT("loopx",f) PL_expect = XTERM,PL_bufptr = s,(int)LOOPEX) | |
147 | #define FTST(f) return(yylval.ival=f, REPORT("ftst",f) PL_expect = XTERM,PL_bufptr = s,(int)UNIOP) | |
148 | #define FUN0(f) return(yylval.ival = f, REPORT("fun0",f) PL_expect = XOPERATOR,PL_bufptr = s,(int)FUNC0) | |
149 | #define FUN1(f) return(yylval.ival = f, REPORT("fun1",f) PL_expect = XOPERATOR,PL_bufptr = s,(int)FUNC1) | |
150 | #define BOop(f) return ao((yylval.ival=f, REPORT("bitorop",f) PL_expect = XTERM,PL_bufptr = s,(int)BITOROP)) | |
151 | #define BAop(f) return ao((yylval.ival=f, REPORT("bitandop",f) PL_expect = XTERM,PL_bufptr = s,(int)BITANDOP)) | |
152 | #define SHop(f) return ao((yylval.ival=f, REPORT("shiftop",f) PL_expect = XTERM,PL_bufptr = s,(int)SHIFTOP)) | |
153 | #define PWop(f) return ao((yylval.ival=f, REPORT("powop",f) PL_expect = XTERM,PL_bufptr = s,(int)POWOP)) | |
154 | #define PMop(f) return(yylval.ival=f, REPORT("matchop",f) PL_expect = XTERM,PL_bufptr = s,(int)MATCHOP) | |
155 | #define Aop(f) return ao((yylval.ival=f, REPORT("add",f) PL_expect = XTERM,PL_bufptr = s,(int)ADDOP)) | |
156 | #define Mop(f) return ao((yylval.ival=f, REPORT("mul",f) PL_expect = XTERM,PL_bufptr = s,(int)MULOP)) | |
157 | #define Eop(f) return(yylval.ival=f, REPORT("eq",f) PL_expect = XTERM,PL_bufptr = s,(int)EQOP) | |
158 | #define Rop(f) return(yylval.ival=f, REPORT("rel",f) PL_expect = XTERM,PL_bufptr = s,(int)RELOP) | |
2f3197b3 | 159 | |
a687059c LW |
160 | /* This bit of chicanery makes a unary function followed by |
161 | * a parenthesis into a function with one argument, highest precedence. | |
162 | */ | |
2f3197b3 | 163 | #define UNI(f) return(yylval.ival = f, \ |
075953c3 | 164 | REPORT("uni",f) \ |
3280af22 NIS |
165 | PL_expect = XTERM, \ |
166 | PL_bufptr = s, \ | |
167 | PL_last_uni = PL_oldbufptr, \ | |
168 | PL_last_lop_op = f, \ | |
a687059c LW |
169 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
170 | ||
79072805 | 171 | #define UNIBRACK(f) return(yylval.ival = f, \ |
075953c3 | 172 | REPORT("uni",f) \ |
3280af22 NIS |
173 | PL_bufptr = s, \ |
174 | PL_last_uni = PL_oldbufptr, \ | |
79072805 LW |
175 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
176 | ||
9f68db38 | 177 | /* grandfather return to old style */ |
3280af22 | 178 | #define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP) |
79072805 | 179 | |
2d00ba3b | 180 | STATIC void |
61b2116b | 181 | S_tokereport(pTHX_ char *thing, char* s, I32 rv) |
998054bd SC |
182 | { |
183 | SV *report; | |
184 | DEBUG_T({ | |
185 | report = newSVpv(thing, 0); | |
61b2116b | 186 | Perl_sv_catpvf(aTHX_ report, ":line %i:%i:", CopLINE(PL_curcop), rv); |
998054bd SC |
187 | |
188 | if (s - PL_bufptr > 0) | |
189 | sv_catpvn(report, PL_bufptr, s - PL_bufptr); | |
190 | else { | |
191 | if (PL_oldbufptr && *PL_oldbufptr) | |
192 | sv_catpv(report, PL_tokenbuf); | |
193 | } | |
194 | PerlIO_printf(Perl_debug_log, "### %s\n", SvPV_nolen(report)); | |
195 | }) | |
196 | } | |
197 | ||
ffb4593c NT |
198 | /* |
199 | * S_ao | |
200 | * | |
201 | * This subroutine detects &&= and ||= and turns an ANDAND or OROR | |
202 | * into an OP_ANDASSIGN or OP_ORASSIGN | |
203 | */ | |
204 | ||
76e3520e | 205 | STATIC int |
cea2e8a9 | 206 | S_ao(pTHX_ int toketype) |
a0d0e21e | 207 | { |
3280af22 NIS |
208 | if (*PL_bufptr == '=') { |
209 | PL_bufptr++; | |
a0d0e21e LW |
210 | if (toketype == ANDAND) |
211 | yylval.ival = OP_ANDASSIGN; | |
212 | else if (toketype == OROR) | |
213 | yylval.ival = OP_ORASSIGN; | |
214 | toketype = ASSIGNOP; | |
215 | } | |
216 | return toketype; | |
217 | } | |
218 | ||
ffb4593c NT |
219 | /* |
220 | * S_no_op | |
221 | * When Perl expects an operator and finds something else, no_op | |
222 | * prints the warning. It always prints "<something> found where | |
223 | * operator expected. It prints "Missing semicolon on previous line?" | |
224 | * if the surprise occurs at the start of the line. "do you need to | |
225 | * predeclare ..." is printed out for code like "sub bar; foo bar $x" | |
226 | * where the compiler doesn't know if foo is a method call or a function. | |
227 | * It prints "Missing operator before end of line" if there's nothing | |
228 | * after the missing operator, or "... before <...>" if there is something | |
229 | * after the missing operator. | |
230 | */ | |
231 | ||
76e3520e | 232 | STATIC void |
cea2e8a9 | 233 | S_no_op(pTHX_ char *what, char *s) |
463ee0b2 | 234 | { |
3280af22 NIS |
235 | char *oldbp = PL_bufptr; |
236 | bool is_first = (PL_oldbufptr == PL_linestart); | |
68dc0745 | 237 | |
1189a94a GS |
238 | if (!s) |
239 | s = oldbp; | |
07c798fb | 240 | else |
1189a94a | 241 | PL_bufptr = s; |
cea2e8a9 | 242 | yywarn(Perl_form(aTHX_ "%s found where operator expected", what)); |
748a9306 | 243 | if (is_first) |
cea2e8a9 | 244 | Perl_warn(aTHX_ "\t(Missing semicolon on previous line?)\n"); |
7e2040f0 | 245 | else if (PL_oldoldbufptr && isIDFIRST_lazy_if(PL_oldoldbufptr,UTF)) { |
748a9306 | 246 | char *t; |
7e2040f0 | 247 | for (t = PL_oldoldbufptr; *t && (isALNUM_lazy_if(t,UTF) || *t == ':'); t++) ; |
3280af22 | 248 | if (t < PL_bufptr && isSPACE(*t)) |
cea2e8a9 | 249 | Perl_warn(aTHX_ "\t(Do you need to predeclare %.*s?)\n", |
3280af22 | 250 | t - PL_oldoldbufptr, PL_oldoldbufptr); |
748a9306 | 251 | } |
07c798fb HS |
252 | else { |
253 | assert(s >= oldbp); | |
cea2e8a9 | 254 | Perl_warn(aTHX_ "\t(Missing operator before %.*s?)\n", s - oldbp, oldbp); |
07c798fb | 255 | } |
3280af22 | 256 | PL_bufptr = oldbp; |
8990e307 LW |
257 | } |
258 | ||
ffb4593c NT |
259 | /* |
260 | * S_missingterm | |
261 | * Complain about missing quote/regexp/heredoc terminator. | |
262 | * If it's called with (char *)NULL then it cauterizes the line buffer. | |
263 | * If we're in a delimited string and the delimiter is a control | |
264 | * character, it's reformatted into a two-char sequence like ^C. | |
265 | * This is fatal. | |
266 | */ | |
267 | ||
76e3520e | 268 | STATIC void |
cea2e8a9 | 269 | S_missingterm(pTHX_ char *s) |
8990e307 LW |
270 | { |
271 | char tmpbuf[3]; | |
272 | char q; | |
273 | if (s) { | |
274 | char *nl = strrchr(s,'\n'); | |
d2719217 | 275 | if (nl) |
8990e307 LW |
276 | *nl = '\0'; |
277 | } | |
9d116dd7 JH |
278 | else if ( |
279 | #ifdef EBCDIC | |
280 | iscntrl(PL_multi_close) | |
281 | #else | |
282 | PL_multi_close < 32 || PL_multi_close == 127 | |
283 | #endif | |
284 | ) { | |
8990e307 | 285 | *tmpbuf = '^'; |
3280af22 | 286 | tmpbuf[1] = toCTRL(PL_multi_close); |
8990e307 LW |
287 | s = "\\n"; |
288 | tmpbuf[2] = '\0'; | |
289 | s = tmpbuf; | |
290 | } | |
291 | else { | |
3280af22 | 292 | *tmpbuf = PL_multi_close; |
8990e307 LW |
293 | tmpbuf[1] = '\0'; |
294 | s = tmpbuf; | |
295 | } | |
296 | q = strchr(s,'"') ? '\'' : '"'; | |
cea2e8a9 | 297 | Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q); |
463ee0b2 | 298 | } |
79072805 | 299 | |
ffb4593c NT |
300 | /* |
301 | * Perl_deprecate | |
ffb4593c NT |
302 | */ |
303 | ||
79072805 | 304 | void |
864dbfa3 | 305 | Perl_deprecate(pTHX_ char *s) |
a0d0e21e | 306 | { |
599cee73 | 307 | if (ckWARN(WARN_DEPRECATED)) |
cea2e8a9 | 308 | Perl_warner(aTHX_ WARN_DEPRECATED, "Use of %s is deprecated", s); |
a0d0e21e LW |
309 | } |
310 | ||
ffb4593c NT |
311 | /* |
312 | * depcom | |
9cbb5ea2 | 313 | * Deprecate a comma-less variable list. |
ffb4593c NT |
314 | */ |
315 | ||
76e3520e | 316 | STATIC void |
cea2e8a9 | 317 | S_depcom(pTHX) |
a0d0e21e LW |
318 | { |
319 | deprecate("comma-less variable list"); | |
320 | } | |
321 | ||
ffb4593c | 322 | /* |
9cbb5ea2 GS |
323 | * experimental text filters for win32 carriage-returns, utf16-to-utf8 and |
324 | * utf16-to-utf8-reversed. | |
ffb4593c NT |
325 | */ |
326 | ||
c39cd008 GS |
327 | #ifdef PERL_CR_FILTER |
328 | static void | |
329 | strip_return(SV *sv) | |
330 | { | |
331 | register char *s = SvPVX(sv); | |
332 | register char *e = s + SvCUR(sv); | |
333 | /* outer loop optimized to do nothing if there are no CR-LFs */ | |
334 | while (s < e) { | |
335 | if (*s++ == '\r' && *s == '\n') { | |
336 | /* hit a CR-LF, need to copy the rest */ | |
337 | register char *d = s - 1; | |
338 | *d++ = *s++; | |
339 | while (s < e) { | |
340 | if (*s == '\r' && s[1] == '\n') | |
341 | s++; | |
342 | *d++ = *s++; | |
343 | } | |
344 | SvCUR(sv) -= s - d; | |
345 | return; | |
346 | } | |
347 | } | |
348 | } | |
a868473f | 349 | |
76e3520e | 350 | STATIC I32 |
c39cd008 | 351 | S_cr_textfilter(pTHX_ int idx, SV *sv, int maxlen) |
a868473f | 352 | { |
c39cd008 GS |
353 | I32 count = FILTER_READ(idx+1, sv, maxlen); |
354 | if (count > 0 && !maxlen) | |
355 | strip_return(sv); | |
356 | return count; | |
a868473f NIS |
357 | } |
358 | #endif | |
359 | ||
ffb4593c NT |
360 | /* |
361 | * Perl_lex_start | |
9cbb5ea2 GS |
362 | * Initialize variables. Uses the Perl save_stack to save its state (for |
363 | * recursive calls to the parser). | |
ffb4593c NT |
364 | */ |
365 | ||
a0d0e21e | 366 | void |
864dbfa3 | 367 | Perl_lex_start(pTHX_ SV *line) |
79072805 | 368 | { |
8990e307 LW |
369 | char *s; |
370 | STRLEN len; | |
371 | ||
3280af22 NIS |
372 | SAVEI32(PL_lex_dojoin); |
373 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
374 | SAVEI32(PL_lex_casemods); |
375 | SAVEI32(PL_lex_starts); | |
376 | SAVEI32(PL_lex_state); | |
7766f137 | 377 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 378 | SAVEI32(PL_lex_inwhat); |
18b09519 GS |
379 | if (PL_lex_state == LEX_KNOWNEXT) { |
380 | I32 toke = PL_nexttoke; | |
381 | while (--toke >= 0) { | |
382 | SAVEI32(PL_nexttype[toke]); | |
383 | SAVEVPTR(PL_nextval[toke]); | |
384 | } | |
385 | SAVEI32(PL_nexttoke); | |
18b09519 | 386 | } |
57843af0 | 387 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
388 | SAVEPPTR(PL_bufptr); |
389 | SAVEPPTR(PL_bufend); | |
390 | SAVEPPTR(PL_oldbufptr); | |
391 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
392 | SAVEPPTR(PL_last_lop); |
393 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
394 | SAVEPPTR(PL_linestart); |
395 | SAVESPTR(PL_linestr); | |
396 | SAVEPPTR(PL_lex_brackstack); | |
397 | SAVEPPTR(PL_lex_casestack); | |
c76ac1ee | 398 | SAVEDESTRUCTOR_X(restore_rsfp, PL_rsfp); |
3280af22 NIS |
399 | SAVESPTR(PL_lex_stuff); |
400 | SAVEI32(PL_lex_defer); | |
09bef843 | 401 | SAVEI32(PL_sublex_info.sub_inwhat); |
3280af22 | 402 | SAVESPTR(PL_lex_repl); |
bebdddfc GS |
403 | SAVEINT(PL_expect); |
404 | SAVEINT(PL_lex_expect); | |
3280af22 NIS |
405 | |
406 | PL_lex_state = LEX_NORMAL; | |
407 | PL_lex_defer = 0; | |
408 | PL_expect = XSTATE; | |
409 | PL_lex_brackets = 0; | |
3280af22 NIS |
410 | New(899, PL_lex_brackstack, 120, char); |
411 | New(899, PL_lex_casestack, 12, char); | |
412 | SAVEFREEPV(PL_lex_brackstack); | |
413 | SAVEFREEPV(PL_lex_casestack); | |
414 | PL_lex_casemods = 0; | |
415 | *PL_lex_casestack = '\0'; | |
416 | PL_lex_dojoin = 0; | |
417 | PL_lex_starts = 0; | |
418 | PL_lex_stuff = Nullsv; | |
419 | PL_lex_repl = Nullsv; | |
420 | PL_lex_inpat = 0; | |
76be56bc | 421 | PL_nexttoke = 0; |
3280af22 | 422 | PL_lex_inwhat = 0; |
09bef843 | 423 | PL_sublex_info.sub_inwhat = 0; |
3280af22 NIS |
424 | PL_linestr = line; |
425 | if (SvREADONLY(PL_linestr)) | |
426 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
427 | s = SvPV(PL_linestr, len); | |
8990e307 | 428 | if (len && s[len-1] != ';') { |
3280af22 NIS |
429 | if (!(SvFLAGS(PL_linestr) & SVs_TEMP)) |
430 | PL_linestr = sv_2mortal(newSVsv(PL_linestr)); | |
431 | sv_catpvn(PL_linestr, "\n;", 2); | |
8990e307 | 432 | } |
3280af22 NIS |
433 | SvTEMP_off(PL_linestr); |
434 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
435 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 436 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 437 | SvREFCNT_dec(PL_rs); |
79cb57f6 | 438 | PL_rs = newSVpvn("\n", 1); |
3280af22 | 439 | PL_rsfp = 0; |
79072805 | 440 | } |
a687059c | 441 | |
ffb4593c NT |
442 | /* |
443 | * Perl_lex_end | |
9cbb5ea2 GS |
444 | * Finalizer for lexing operations. Must be called when the parser is |
445 | * done with the lexer. | |
ffb4593c NT |
446 | */ |
447 | ||
463ee0b2 | 448 | void |
864dbfa3 | 449 | Perl_lex_end(pTHX) |
463ee0b2 | 450 | { |
3280af22 | 451 | PL_doextract = FALSE; |
463ee0b2 LW |
452 | } |
453 | ||
ffb4593c NT |
454 | /* |
455 | * S_incline | |
456 | * This subroutine has nothing to do with tilting, whether at windmills | |
457 | * or pinball tables. Its name is short for "increment line". It | |
57843af0 | 458 | * increments the current line number in CopLINE(PL_curcop) and checks |
ffb4593c | 459 | * to see whether the line starts with a comment of the form |
9cbb5ea2 GS |
460 | * # line 500 "foo.pm" |
461 | * If so, it sets the current line number and file to the values in the comment. | |
ffb4593c NT |
462 | */ |
463 | ||
76e3520e | 464 | STATIC void |
cea2e8a9 | 465 | S_incline(pTHX_ char *s) |
463ee0b2 LW |
466 | { |
467 | char *t; | |
468 | char *n; | |
73659bf1 | 469 | char *e; |
463ee0b2 | 470 | char ch; |
463ee0b2 | 471 | |
57843af0 | 472 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
473 | if (*s++ != '#') |
474 | return; | |
bf4acbe4 | 475 | while (SPACE_OR_TAB(*s)) s++; |
73659bf1 GS |
476 | if (strnEQ(s, "line", 4)) |
477 | s += 4; | |
478 | else | |
479 | return; | |
084592ab | 480 | if (SPACE_OR_TAB(*s)) |
73659bf1 | 481 | s++; |
4e553d73 | 482 | else |
73659bf1 | 483 | return; |
bf4acbe4 | 484 | while (SPACE_OR_TAB(*s)) s++; |
463ee0b2 LW |
485 | if (!isDIGIT(*s)) |
486 | return; | |
487 | n = s; | |
488 | while (isDIGIT(*s)) | |
489 | s++; | |
bf4acbe4 | 490 | while (SPACE_OR_TAB(*s)) |
463ee0b2 | 491 | s++; |
73659bf1 | 492 | if (*s == '"' && (t = strchr(s+1, '"'))) { |
463ee0b2 | 493 | s++; |
73659bf1 GS |
494 | e = t + 1; |
495 | } | |
463ee0b2 | 496 | else { |
463ee0b2 | 497 | for (t = s; !isSPACE(*t); t++) ; |
73659bf1 | 498 | e = t; |
463ee0b2 | 499 | } |
bf4acbe4 | 500 | while (SPACE_OR_TAB(*e) || *e == '\r' || *e == '\f') |
73659bf1 GS |
501 | e++; |
502 | if (*e != '\n' && *e != '\0') | |
503 | return; /* false alarm */ | |
504 | ||
463ee0b2 LW |
505 | ch = *t; |
506 | *t = '\0'; | |
f4dd75d9 GS |
507 | if (t - s > 0) { |
508 | #ifdef USE_ITHREADS | |
509 | Safefree(CopFILE(PL_curcop)); | |
510 | #else | |
511 | SvREFCNT_dec(CopFILEGV(PL_curcop)); | |
512 | #endif | |
57843af0 | 513 | CopFILE_set(PL_curcop, s); |
f4dd75d9 | 514 | } |
463ee0b2 | 515 | *t = ch; |
57843af0 | 516 | CopLINE_set(PL_curcop, atoi(n)-1); |
463ee0b2 LW |
517 | } |
518 | ||
ffb4593c NT |
519 | /* |
520 | * S_skipspace | |
521 | * Called to gobble the appropriate amount and type of whitespace. | |
522 | * Skips comments as well. | |
523 | */ | |
524 | ||
76e3520e | 525 | STATIC char * |
cea2e8a9 | 526 | S_skipspace(pTHX_ register char *s) |
a687059c | 527 | { |
3280af22 | 528 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
bf4acbe4 | 529 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
463ee0b2 LW |
530 | s++; |
531 | return s; | |
532 | } | |
533 | for (;;) { | |
fd049845 | 534 | STRLEN prevlen; |
09bef843 SB |
535 | SSize_t oldprevlen, oldoldprevlen; |
536 | SSize_t oldloplen, oldunilen; | |
60e6418e GS |
537 | while (s < PL_bufend && isSPACE(*s)) { |
538 | if (*s++ == '\n' && PL_in_eval && !PL_rsfp) | |
539 | incline(s); | |
540 | } | |
ffb4593c NT |
541 | |
542 | /* comment */ | |
3280af22 NIS |
543 | if (s < PL_bufend && *s == '#') { |
544 | while (s < PL_bufend && *s != '\n') | |
463ee0b2 | 545 | s++; |
60e6418e | 546 | if (s < PL_bufend) { |
463ee0b2 | 547 | s++; |
60e6418e GS |
548 | if (PL_in_eval && !PL_rsfp) { |
549 | incline(s); | |
550 | continue; | |
551 | } | |
552 | } | |
463ee0b2 | 553 | } |
ffb4593c NT |
554 | |
555 | /* only continue to recharge the buffer if we're at the end | |
556 | * of the buffer, we're not reading from a source filter, and | |
557 | * we're in normal lexing mode | |
558 | */ | |
09bef843 SB |
559 | if (s < PL_bufend || !PL_rsfp || PL_sublex_info.sub_inwhat || |
560 | PL_lex_state == LEX_FORMLINE) | |
463ee0b2 | 561 | return s; |
ffb4593c NT |
562 | |
563 | /* try to recharge the buffer */ | |
9cbb5ea2 GS |
564 | if ((s = filter_gets(PL_linestr, PL_rsfp, |
565 | (prevlen = SvCUR(PL_linestr)))) == Nullch) | |
566 | { | |
567 | /* end of file. Add on the -p or -n magic */ | |
3280af22 NIS |
568 | if (PL_minus_n || PL_minus_p) { |
569 | sv_setpv(PL_linestr,PL_minus_p ? | |
08e9d68e DD |
570 | ";}continue{print or die qq(-p destination: $!\\n)" : |
571 | ""); | |
3280af22 NIS |
572 | sv_catpv(PL_linestr,";}"); |
573 | PL_minus_n = PL_minus_p = 0; | |
a0d0e21e LW |
574 | } |
575 | else | |
3280af22 | 576 | sv_setpv(PL_linestr,";"); |
ffb4593c NT |
577 | |
578 | /* reset variables for next time we lex */ | |
9cbb5ea2 GS |
579 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart |
580 | = SvPVX(PL_linestr); | |
3280af22 | 581 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 582 | PL_last_lop = PL_last_uni = Nullch; |
ffb4593c NT |
583 | |
584 | /* Close the filehandle. Could be from -P preprocessor, | |
585 | * STDIN, or a regular file. If we were reading code from | |
586 | * STDIN (because the commandline held no -e or filename) | |
587 | * then we don't close it, we reset it so the code can | |
588 | * read from STDIN too. | |
589 | */ | |
590 | ||
3280af22 NIS |
591 | if (PL_preprocess && !PL_in_eval) |
592 | (void)PerlProc_pclose(PL_rsfp); | |
593 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) | |
594 | PerlIO_clearerr(PL_rsfp); | |
8990e307 | 595 | else |
3280af22 NIS |
596 | (void)PerlIO_close(PL_rsfp); |
597 | PL_rsfp = Nullfp; | |
463ee0b2 LW |
598 | return s; |
599 | } | |
ffb4593c NT |
600 | |
601 | /* not at end of file, so we only read another line */ | |
09bef843 SB |
602 | /* make corresponding updates to old pointers, for yyerror() */ |
603 | oldprevlen = PL_oldbufptr - PL_bufend; | |
604 | oldoldprevlen = PL_oldoldbufptr - PL_bufend; | |
605 | if (PL_last_uni) | |
606 | oldunilen = PL_last_uni - PL_bufend; | |
607 | if (PL_last_lop) | |
608 | oldloplen = PL_last_lop - PL_bufend; | |
3280af22 NIS |
609 | PL_linestart = PL_bufptr = s + prevlen; |
610 | PL_bufend = s + SvCUR(PL_linestr); | |
611 | s = PL_bufptr; | |
09bef843 SB |
612 | PL_oldbufptr = s + oldprevlen; |
613 | PL_oldoldbufptr = s + oldoldprevlen; | |
614 | if (PL_last_uni) | |
615 | PL_last_uni = s + oldunilen; | |
616 | if (PL_last_lop) | |
617 | PL_last_lop = s + oldloplen; | |
a0d0e21e | 618 | incline(s); |
ffb4593c NT |
619 | |
620 | /* debugger active and we're not compiling the debugger code, | |
621 | * so store the line into the debugger's array of lines | |
622 | */ | |
3280af22 | 623 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
8990e307 LW |
624 | SV *sv = NEWSV(85,0); |
625 | ||
626 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 627 | sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr); |
57843af0 | 628 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
8990e307 | 629 | } |
463ee0b2 | 630 | } |
a687059c | 631 | } |
378cc40b | 632 | |
ffb4593c NT |
633 | /* |
634 | * S_check_uni | |
635 | * Check the unary operators to ensure there's no ambiguity in how they're | |
636 | * used. An ambiguous piece of code would be: | |
637 | * rand + 5 | |
638 | * This doesn't mean rand() + 5. Because rand() is a unary operator, | |
639 | * the +5 is its argument. | |
640 | */ | |
641 | ||
76e3520e | 642 | STATIC void |
cea2e8a9 | 643 | S_check_uni(pTHX) |
ba106d47 | 644 | { |
2f3197b3 | 645 | char *s; |
a0d0e21e | 646 | char *t; |
2f3197b3 | 647 | |
3280af22 | 648 | if (PL_oldoldbufptr != PL_last_uni) |
2f3197b3 | 649 | return; |
3280af22 NIS |
650 | while (isSPACE(*PL_last_uni)) |
651 | PL_last_uni++; | |
7e2040f0 | 652 | for (s = PL_last_uni; isALNUM_lazy_if(s,UTF) || *s == '-'; s++) ; |
3280af22 | 653 | if ((t = strchr(s, '(')) && t < PL_bufptr) |
a0d0e21e | 654 | return; |
0453d815 | 655 | if (ckWARN_d(WARN_AMBIGUOUS)){ |
f248d071 | 656 | char ch = *s; |
0453d815 | 657 | *s = '\0'; |
4e553d73 NIS |
658 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
659 | "Warning: Use of \"%s\" without parens is ambiguous", | |
0453d815 PM |
660 | PL_last_uni); |
661 | *s = ch; | |
662 | } | |
2f3197b3 LW |
663 | } |
664 | ||
ffb4593c NT |
665 | /* workaround to replace the UNI() macro with a function. Only the |
666 | * hints/uts.sh file mentions this. Other comments elsewhere in the | |
667 | * source indicate Microport Unix might need it too. | |
668 | */ | |
669 | ||
ffed7fef LW |
670 | #ifdef CRIPPLED_CC |
671 | ||
672 | #undef UNI | |
ffed7fef | 673 | #define UNI(f) return uni(f,s) |
ffed7fef | 674 | |
76e3520e | 675 | STATIC int |
cea2e8a9 | 676 | S_uni(pTHX_ I32 f, char *s) |
ffed7fef LW |
677 | { |
678 | yylval.ival = f; | |
3280af22 NIS |
679 | PL_expect = XTERM; |
680 | PL_bufptr = s; | |
8f872242 NIS |
681 | PL_last_uni = PL_oldbufptr; |
682 | PL_last_lop_op = f; | |
ffed7fef LW |
683 | if (*s == '(') |
684 | return FUNC1; | |
685 | s = skipspace(s); | |
686 | if (*s == '(') | |
687 | return FUNC1; | |
688 | else | |
689 | return UNIOP; | |
690 | } | |
691 | ||
a0d0e21e LW |
692 | #endif /* CRIPPLED_CC */ |
693 | ||
ffb4593c NT |
694 | /* |
695 | * LOP : macro to build a list operator. Its behaviour has been replaced | |
696 | * with a subroutine, S_lop() for which LOP is just another name. | |
697 | */ | |
698 | ||
a0d0e21e LW |
699 | #define LOP(f,x) return lop(f,x,s) |
700 | ||
ffb4593c NT |
701 | /* |
702 | * S_lop | |
703 | * Build a list operator (or something that might be one). The rules: | |
704 | * - if we have a next token, then it's a list operator [why?] | |
705 | * - if the next thing is an opening paren, then it's a function | |
706 | * - else it's a list operator | |
707 | */ | |
708 | ||
76e3520e | 709 | STATIC I32 |
a0be28da | 710 | S_lop(pTHX_ I32 f, int x, char *s) |
ffed7fef | 711 | { |
79072805 | 712 | yylval.ival = f; |
35c8bce7 | 713 | CLINE; |
075953c3 | 714 | REPORT("lop", f) |
3280af22 NIS |
715 | PL_expect = x; |
716 | PL_bufptr = s; | |
717 | PL_last_lop = PL_oldbufptr; | |
718 | PL_last_lop_op = f; | |
719 | if (PL_nexttoke) | |
a0d0e21e | 720 | return LSTOP; |
79072805 LW |
721 | if (*s == '(') |
722 | return FUNC; | |
723 | s = skipspace(s); | |
724 | if (*s == '(') | |
725 | return FUNC; | |
726 | else | |
727 | return LSTOP; | |
728 | } | |
729 | ||
ffb4593c NT |
730 | /* |
731 | * S_force_next | |
9cbb5ea2 | 732 | * When the lexer realizes it knows the next token (for instance, |
ffb4593c | 733 | * it is reordering tokens for the parser) then it can call S_force_next |
9cbb5ea2 GS |
734 | * to know what token to return the next time the lexer is called. Caller |
735 | * will need to set PL_nextval[], and possibly PL_expect to ensure the lexer | |
736 | * handles the token correctly. | |
ffb4593c NT |
737 | */ |
738 | ||
4e553d73 | 739 | STATIC void |
cea2e8a9 | 740 | S_force_next(pTHX_ I32 type) |
79072805 | 741 | { |
3280af22 NIS |
742 | PL_nexttype[PL_nexttoke] = type; |
743 | PL_nexttoke++; | |
744 | if (PL_lex_state != LEX_KNOWNEXT) { | |
745 | PL_lex_defer = PL_lex_state; | |
746 | PL_lex_expect = PL_expect; | |
747 | PL_lex_state = LEX_KNOWNEXT; | |
79072805 LW |
748 | } |
749 | } | |
750 | ||
ffb4593c NT |
751 | /* |
752 | * S_force_word | |
753 | * When the lexer knows the next thing is a word (for instance, it has | |
754 | * just seen -> and it knows that the next char is a word char, then | |
755 | * it calls S_force_word to stick the next word into the PL_next lookahead. | |
756 | * | |
757 | * Arguments: | |
b1b65b59 | 758 | * char *start : buffer position (must be within PL_linestr) |
ffb4593c NT |
759 | * int token : PL_next will be this type of bare word (e.g., METHOD,WORD) |
760 | * int check_keyword : if true, Perl checks to make sure the word isn't | |
761 | * a keyword (do this if the word is a label, e.g. goto FOO) | |
762 | * int allow_pack : if true, : characters will also be allowed (require, | |
763 | * use, etc. do this) | |
9cbb5ea2 | 764 | * int allow_initial_tick : used by the "sub" lexer only. |
ffb4593c NT |
765 | */ |
766 | ||
76e3520e | 767 | STATIC char * |
cea2e8a9 | 768 | S_force_word(pTHX_ register char *start, int token, int check_keyword, int allow_pack, int allow_initial_tick) |
79072805 | 769 | { |
463ee0b2 LW |
770 | register char *s; |
771 | STRLEN len; | |
4e553d73 | 772 | |
463ee0b2 LW |
773 | start = skipspace(start); |
774 | s = start; | |
7e2040f0 | 775 | if (isIDFIRST_lazy_if(s,UTF) || |
a0d0e21e | 776 | (allow_pack && *s == ':') || |
15f0808c | 777 | (allow_initial_tick && *s == '\'') ) |
a0d0e21e | 778 | { |
3280af22 NIS |
779 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, allow_pack, &len); |
780 | if (check_keyword && keyword(PL_tokenbuf, len)) | |
463ee0b2 LW |
781 | return start; |
782 | if (token == METHOD) { | |
783 | s = skipspace(s); | |
784 | if (*s == '(') | |
3280af22 | 785 | PL_expect = XTERM; |
463ee0b2 | 786 | else { |
3280af22 | 787 | PL_expect = XOPERATOR; |
463ee0b2 | 788 | } |
79072805 | 789 | } |
3280af22 NIS |
790 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(PL_tokenbuf,0)); |
791 | PL_nextval[PL_nexttoke].opval->op_private |= OPpCONST_BARE; | |
79072805 LW |
792 | force_next(token); |
793 | } | |
794 | return s; | |
795 | } | |
796 | ||
ffb4593c NT |
797 | /* |
798 | * S_force_ident | |
9cbb5ea2 | 799 | * Called when the lexer wants $foo *foo &foo etc, but the program |
ffb4593c NT |
800 | * text only contains the "foo" portion. The first argument is a pointer |
801 | * to the "foo", and the second argument is the type symbol to prefix. | |
802 | * Forces the next token to be a "WORD". | |
9cbb5ea2 | 803 | * Creates the symbol if it didn't already exist (via gv_fetchpv()). |
ffb4593c NT |
804 | */ |
805 | ||
76e3520e | 806 | STATIC void |
cea2e8a9 | 807 | S_force_ident(pTHX_ register char *s, int kind) |
79072805 LW |
808 | { |
809 | if (s && *s) { | |
11343788 | 810 | OP* o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0)); |
3280af22 | 811 | PL_nextval[PL_nexttoke].opval = o; |
79072805 | 812 | force_next(WORD); |
748a9306 | 813 | if (kind) { |
11343788 | 814 | o->op_private = OPpCONST_ENTERED; |
55497cff | 815 | /* XXX see note in pp_entereval() for why we forgo typo |
816 | warnings if the symbol must be introduced in an eval. | |
817 | GSAR 96-10-12 */ | |
3280af22 | 818 | gv_fetchpv(s, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE, |
a0d0e21e LW |
819 | kind == '$' ? SVt_PV : |
820 | kind == '@' ? SVt_PVAV : | |
821 | kind == '%' ? SVt_PVHV : | |
822 | SVt_PVGV | |
823 | ); | |
748a9306 | 824 | } |
79072805 LW |
825 | } |
826 | } | |
827 | ||
1571675a GS |
828 | NV |
829 | Perl_str_to_version(pTHX_ SV *sv) | |
830 | { | |
831 | NV retval = 0.0; | |
832 | NV nshift = 1.0; | |
833 | STRLEN len; | |
834 | char *start = SvPVx(sv,len); | |
3aa33fe5 | 835 | bool utf = SvUTF8(sv) ? TRUE : FALSE; |
1571675a GS |
836 | char *end = start + len; |
837 | while (start < end) { | |
ba210ebe | 838 | STRLEN skip; |
1571675a GS |
839 | UV n; |
840 | if (utf) | |
dcad2880 | 841 | n = utf8_to_uv((U8*)start, len, &skip, 0); |
1571675a GS |
842 | else { |
843 | n = *(U8*)start; | |
844 | skip = 1; | |
845 | } | |
846 | retval += ((NV)n)/nshift; | |
847 | start += skip; | |
848 | nshift *= 1000; | |
849 | } | |
850 | return retval; | |
851 | } | |
852 | ||
4e553d73 | 853 | /* |
ffb4593c NT |
854 | * S_force_version |
855 | * Forces the next token to be a version number. | |
856 | */ | |
857 | ||
76e3520e | 858 | STATIC char * |
cea2e8a9 | 859 | S_force_version(pTHX_ char *s) |
89bfa8cd | 860 | { |
861 | OP *version = Nullop; | |
44dcb63b | 862 | char *d; |
89bfa8cd | 863 | |
864 | s = skipspace(s); | |
865 | ||
44dcb63b | 866 | d = s; |
dd629d5b | 867 | if (*d == 'v') |
44dcb63b | 868 | d++; |
44dcb63b | 869 | if (isDIGIT(*d)) { |
a7cb1f99 | 870 | for (; isDIGIT(*d) || *d == '_' || *d == '.'; d++); |
9f3d182e | 871 | if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) { |
dd629d5b | 872 | SV *ver; |
b73d6f50 | 873 | s = scan_num(s, &yylval); |
89bfa8cd | 874 | version = yylval.opval; |
dd629d5b GS |
875 | ver = cSVOPx(version)->op_sv; |
876 | if (SvPOK(ver) && !SvNIOK(ver)) { | |
155aba94 | 877 | (void)SvUPGRADE(ver, SVt_PVNV); |
1571675a GS |
878 | SvNVX(ver) = str_to_version(ver); |
879 | SvNOK_on(ver); /* hint that it is a version */ | |
44dcb63b | 880 | } |
89bfa8cd | 881 | } |
882 | } | |
883 | ||
884 | /* NOTE: The parser sees the package name and the VERSION swapped */ | |
3280af22 | 885 | PL_nextval[PL_nexttoke].opval = version; |
4e553d73 | 886 | force_next(WORD); |
89bfa8cd | 887 | |
888 | return (s); | |
889 | } | |
890 | ||
ffb4593c NT |
891 | /* |
892 | * S_tokeq | |
893 | * Tokenize a quoted string passed in as an SV. It finds the next | |
894 | * chunk, up to end of string or a backslash. It may make a new | |
895 | * SV containing that chunk (if HINT_NEW_STRING is on). It also | |
896 | * turns \\ into \. | |
897 | */ | |
898 | ||
76e3520e | 899 | STATIC SV * |
cea2e8a9 | 900 | S_tokeq(pTHX_ SV *sv) |
79072805 LW |
901 | { |
902 | register char *s; | |
903 | register char *send; | |
904 | register char *d; | |
b3ac6de7 IZ |
905 | STRLEN len = 0; |
906 | SV *pv = sv; | |
79072805 LW |
907 | |
908 | if (!SvLEN(sv)) | |
b3ac6de7 | 909 | goto finish; |
79072805 | 910 | |
a0d0e21e | 911 | s = SvPV_force(sv, len); |
21a311ee | 912 | if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) |
b3ac6de7 | 913 | goto finish; |
463ee0b2 | 914 | send = s + len; |
79072805 LW |
915 | while (s < send && *s != '\\') |
916 | s++; | |
917 | if (s == send) | |
b3ac6de7 | 918 | goto finish; |
79072805 | 919 | d = s; |
3280af22 | 920 | if ( PL_hints & HINT_NEW_STRING ) |
79cb57f6 | 921 | pv = sv_2mortal(newSVpvn(SvPVX(pv), len)); |
79072805 LW |
922 | while (s < send) { |
923 | if (*s == '\\') { | |
a0d0e21e | 924 | if (s + 1 < send && (s[1] == '\\')) |
79072805 LW |
925 | s++; /* all that, just for this */ |
926 | } | |
927 | *d++ = *s++; | |
928 | } | |
929 | *d = '\0'; | |
463ee0b2 | 930 | SvCUR_set(sv, d - SvPVX(sv)); |
b3ac6de7 | 931 | finish: |
3280af22 | 932 | if ( PL_hints & HINT_NEW_STRING ) |
b3ac6de7 | 933 | return new_constant(NULL, 0, "q", sv, pv, "q"); |
79072805 LW |
934 | return sv; |
935 | } | |
936 | ||
ffb4593c NT |
937 | /* |
938 | * Now come three functions related to double-quote context, | |
939 | * S_sublex_start, S_sublex_push, and S_sublex_done. They're used when | |
940 | * converting things like "\u\Lgnat" into ucfirst(lc("gnat")). They | |
941 | * interact with PL_lex_state, and create fake ( ... ) argument lists | |
942 | * to handle functions and concatenation. | |
943 | * They assume that whoever calls them will be setting up a fake | |
944 | * join call, because each subthing puts a ',' after it. This lets | |
945 | * "lower \luPpEr" | |
946 | * become | |
947 | * join($, , 'lower ', lcfirst( 'uPpEr', ) ,) | |
948 | * | |
949 | * (I'm not sure whether the spurious commas at the end of lcfirst's | |
950 | * arguments and join's arguments are created or not). | |
951 | */ | |
952 | ||
953 | /* | |
954 | * S_sublex_start | |
955 | * Assumes that yylval.ival is the op we're creating (e.g. OP_LCFIRST). | |
956 | * | |
957 | * Pattern matching will set PL_lex_op to the pattern-matching op to | |
958 | * make (we return THING if yylval.ival is OP_NULL, PMFUNC otherwise). | |
959 | * | |
960 | * OP_CONST and OP_READLINE are easy--just make the new op and return. | |
961 | * | |
962 | * Everything else becomes a FUNC. | |
963 | * | |
964 | * Sets PL_lex_state to LEX_INTERPPUSH unless (ival was OP_NULL or we | |
965 | * had an OP_CONST or OP_READLINE). This just sets us up for a | |
966 | * call to S_sublex_push(). | |
967 | */ | |
968 | ||
76e3520e | 969 | STATIC I32 |
cea2e8a9 | 970 | S_sublex_start(pTHX) |
79072805 LW |
971 | { |
972 | register I32 op_type = yylval.ival; | |
79072805 LW |
973 | |
974 | if (op_type == OP_NULL) { | |
3280af22 NIS |
975 | yylval.opval = PL_lex_op; |
976 | PL_lex_op = Nullop; | |
79072805 LW |
977 | return THING; |
978 | } | |
979 | if (op_type == OP_CONST || op_type == OP_READLINE) { | |
3280af22 | 980 | SV *sv = tokeq(PL_lex_stuff); |
b3ac6de7 IZ |
981 | |
982 | if (SvTYPE(sv) == SVt_PVIV) { | |
983 | /* Overloaded constants, nothing fancy: Convert to SVt_PV: */ | |
984 | STRLEN len; | |
985 | char *p; | |
986 | SV *nsv; | |
987 | ||
988 | p = SvPV(sv, len); | |
79cb57f6 | 989 | nsv = newSVpvn(p, len); |
01ec43d0 GS |
990 | if (SvUTF8(sv)) |
991 | SvUTF8_on(nsv); | |
b3ac6de7 IZ |
992 | SvREFCNT_dec(sv); |
993 | sv = nsv; | |
4e553d73 | 994 | } |
b3ac6de7 | 995 | yylval.opval = (OP*)newSVOP(op_type, 0, sv); |
3280af22 | 996 | PL_lex_stuff = Nullsv; |
79072805 LW |
997 | return THING; |
998 | } | |
999 | ||
3280af22 NIS |
1000 | PL_sublex_info.super_state = PL_lex_state; |
1001 | PL_sublex_info.sub_inwhat = op_type; | |
1002 | PL_sublex_info.sub_op = PL_lex_op; | |
1003 | PL_lex_state = LEX_INTERPPUSH; | |
55497cff | 1004 | |
3280af22 NIS |
1005 | PL_expect = XTERM; |
1006 | if (PL_lex_op) { | |
1007 | yylval.opval = PL_lex_op; | |
1008 | PL_lex_op = Nullop; | |
55497cff | 1009 | return PMFUNC; |
1010 | } | |
1011 | else | |
1012 | return FUNC; | |
1013 | } | |
1014 | ||
ffb4593c NT |
1015 | /* |
1016 | * S_sublex_push | |
1017 | * Create a new scope to save the lexing state. The scope will be | |
1018 | * ended in S_sublex_done. Returns a '(', starting the function arguments | |
1019 | * to the uc, lc, etc. found before. | |
1020 | * Sets PL_lex_state to LEX_INTERPCONCAT. | |
1021 | */ | |
1022 | ||
76e3520e | 1023 | STATIC I32 |
cea2e8a9 | 1024 | S_sublex_push(pTHX) |
55497cff | 1025 | { |
f46d017c | 1026 | ENTER; |
55497cff | 1027 | |
3280af22 NIS |
1028 | PL_lex_state = PL_sublex_info.super_state; |
1029 | SAVEI32(PL_lex_dojoin); | |
1030 | SAVEI32(PL_lex_brackets); | |
3280af22 NIS |
1031 | SAVEI32(PL_lex_casemods); |
1032 | SAVEI32(PL_lex_starts); | |
1033 | SAVEI32(PL_lex_state); | |
7766f137 | 1034 | SAVEVPTR(PL_lex_inpat); |
3280af22 | 1035 | SAVEI32(PL_lex_inwhat); |
57843af0 | 1036 | SAVECOPLINE(PL_curcop); |
3280af22 NIS |
1037 | SAVEPPTR(PL_bufptr); |
1038 | SAVEPPTR(PL_oldbufptr); | |
1039 | SAVEPPTR(PL_oldoldbufptr); | |
207e3d1a JH |
1040 | SAVEPPTR(PL_last_lop); |
1041 | SAVEPPTR(PL_last_uni); | |
3280af22 NIS |
1042 | SAVEPPTR(PL_linestart); |
1043 | SAVESPTR(PL_linestr); | |
1044 | SAVEPPTR(PL_lex_brackstack); | |
1045 | SAVEPPTR(PL_lex_casestack); | |
1046 | ||
1047 | PL_linestr = PL_lex_stuff; | |
1048 | PL_lex_stuff = Nullsv; | |
1049 | ||
9cbb5ea2 GS |
1050 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart |
1051 | = SvPVX(PL_linestr); | |
3280af22 | 1052 | PL_bufend += SvCUR(PL_linestr); |
207e3d1a | 1053 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1054 | SAVEFREESV(PL_linestr); |
1055 | ||
1056 | PL_lex_dojoin = FALSE; | |
1057 | PL_lex_brackets = 0; | |
3280af22 NIS |
1058 | New(899, PL_lex_brackstack, 120, char); |
1059 | New(899, PL_lex_casestack, 12, char); | |
1060 | SAVEFREEPV(PL_lex_brackstack); | |
1061 | SAVEFREEPV(PL_lex_casestack); | |
1062 | PL_lex_casemods = 0; | |
1063 | *PL_lex_casestack = '\0'; | |
1064 | PL_lex_starts = 0; | |
1065 | PL_lex_state = LEX_INTERPCONCAT; | |
57843af0 | 1066 | CopLINE_set(PL_curcop, PL_multi_start); |
3280af22 NIS |
1067 | |
1068 | PL_lex_inwhat = PL_sublex_info.sub_inwhat; | |
1069 | if (PL_lex_inwhat == OP_MATCH || PL_lex_inwhat == OP_QR || PL_lex_inwhat == OP_SUBST) | |
1070 | PL_lex_inpat = PL_sublex_info.sub_op; | |
79072805 | 1071 | else |
3280af22 | 1072 | PL_lex_inpat = Nullop; |
79072805 | 1073 | |
55497cff | 1074 | return '('; |
79072805 LW |
1075 | } |
1076 | ||
ffb4593c NT |
1077 | /* |
1078 | * S_sublex_done | |
1079 | * Restores lexer state after a S_sublex_push. | |
1080 | */ | |
1081 | ||
76e3520e | 1082 | STATIC I32 |
cea2e8a9 | 1083 | S_sublex_done(pTHX) |
79072805 | 1084 | { |
3280af22 | 1085 | if (!PL_lex_starts++) { |
9aa983d2 JH |
1086 | SV *sv = newSVpvn("",0); |
1087 | if (SvUTF8(PL_linestr)) | |
1088 | SvUTF8_on(sv); | |
3280af22 | 1089 | PL_expect = XOPERATOR; |
9aa983d2 | 1090 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
79072805 LW |
1091 | return THING; |
1092 | } | |
1093 | ||
3280af22 NIS |
1094 | if (PL_lex_casemods) { /* oops, we've got some unbalanced parens */ |
1095 | PL_lex_state = LEX_INTERPCASEMOD; | |
cea2e8a9 | 1096 | return yylex(); |
79072805 LW |
1097 | } |
1098 | ||
ffb4593c | 1099 | /* Is there a right-hand side to take care of? (s//RHS/ or tr//RHS/) */ |
3280af22 NIS |
1100 | if (PL_lex_repl && (PL_lex_inwhat == OP_SUBST || PL_lex_inwhat == OP_TRANS)) { |
1101 | PL_linestr = PL_lex_repl; | |
1102 | PL_lex_inpat = 0; | |
1103 | PL_bufend = PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
1104 | PL_bufend += SvCUR(PL_linestr); | |
207e3d1a | 1105 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 NIS |
1106 | SAVEFREESV(PL_linestr); |
1107 | PL_lex_dojoin = FALSE; | |
1108 | PL_lex_brackets = 0; | |
3280af22 NIS |
1109 | PL_lex_casemods = 0; |
1110 | *PL_lex_casestack = '\0'; | |
1111 | PL_lex_starts = 0; | |
25da4f38 | 1112 | if (SvEVALED(PL_lex_repl)) { |
3280af22 NIS |
1113 | PL_lex_state = LEX_INTERPNORMAL; |
1114 | PL_lex_starts++; | |
e9fa98b2 HS |
1115 | /* we don't clear PL_lex_repl here, so that we can check later |
1116 | whether this is an evalled subst; that means we rely on the | |
1117 | logic to ensure sublex_done() is called again only via the | |
1118 | branch (in yylex()) that clears PL_lex_repl, else we'll loop */ | |
79072805 | 1119 | } |
e9fa98b2 | 1120 | else { |
3280af22 | 1121 | PL_lex_state = LEX_INTERPCONCAT; |
e9fa98b2 HS |
1122 | PL_lex_repl = Nullsv; |
1123 | } | |
79072805 | 1124 | return ','; |
ffed7fef LW |
1125 | } |
1126 | else { | |
f46d017c | 1127 | LEAVE; |
3280af22 NIS |
1128 | PL_bufend = SvPVX(PL_linestr); |
1129 | PL_bufend += SvCUR(PL_linestr); | |
1130 | PL_expect = XOPERATOR; | |
09bef843 | 1131 | PL_sublex_info.sub_inwhat = 0; |
79072805 | 1132 | return ')'; |
ffed7fef LW |
1133 | } |
1134 | } | |
1135 | ||
02aa26ce NT |
1136 | /* |
1137 | scan_const | |
1138 | ||
1139 | Extracts a pattern, double-quoted string, or transliteration. This | |
1140 | is terrifying code. | |
1141 | ||
3280af22 NIS |
1142 | It looks at lex_inwhat and PL_lex_inpat to find out whether it's |
1143 | processing a pattern (PL_lex_inpat is true), a transliteration | |
02aa26ce NT |
1144 | (lex_inwhat & OP_TRANS is true), or a double-quoted string. |
1145 | ||
9b599b2a GS |
1146 | Returns a pointer to the character scanned up to. Iff this is |
1147 | advanced from the start pointer supplied (ie if anything was | |
1148 | successfully parsed), will leave an OP for the substring scanned | |
1149 | in yylval. Caller must intuit reason for not parsing further | |
1150 | by looking at the next characters herself. | |
1151 | ||
02aa26ce NT |
1152 | In patterns: |
1153 | backslashes: | |
1154 | double-quoted style: \r and \n | |
1155 | regexp special ones: \D \s | |
1156 | constants: \x3 | |
1157 | backrefs: \1 (deprecated in substitution replacements) | |
1158 | case and quoting: \U \Q \E | |
1159 | stops on @ and $, but not for $ as tail anchor | |
1160 | ||
1161 | In transliterations: | |
1162 | characters are VERY literal, except for - not at the start or end | |
1163 | of the string, which indicates a range. scan_const expands the | |
1164 | range to the full set of intermediate characters. | |
1165 | ||
1166 | In double-quoted strings: | |
1167 | backslashes: | |
1168 | double-quoted style: \r and \n | |
1169 | constants: \x3 | |
1170 | backrefs: \1 (deprecated) | |
1171 | case and quoting: \U \Q \E | |
1172 | stops on @ and $ | |
1173 | ||
1174 | scan_const does *not* construct ops to handle interpolated strings. | |
1175 | It stops processing as soon as it finds an embedded $ or @ variable | |
1176 | and leaves it to the caller to work out what's going on. | |
1177 | ||
1178 | @ in pattern could be: @foo, @{foo}, @$foo, @'foo, @:foo. | |
1179 | ||
1180 | $ in pattern could be $foo or could be tail anchor. Assumption: | |
1181 | it's a tail anchor if $ is the last thing in the string, or if it's | |
1182 | followed by one of ")| \n\t" | |
1183 | ||
1184 | \1 (backreferences) are turned into $1 | |
1185 | ||
1186 | The structure of the code is | |
1187 | while (there's a character to process) { | |
1188 | handle transliteration ranges | |
1189 | skip regexp comments | |
1190 | skip # initiated comments in //x patterns | |
1191 | check for embedded @foo | |
1192 | check for embedded scalars | |
1193 | if (backslash) { | |
1194 | leave intact backslashes from leave (below) | |
1195 | deprecate \1 in strings and sub replacements | |
1196 | handle string-changing backslashes \l \U \Q \E, etc. | |
1197 | switch (what was escaped) { | |
1198 | handle - in a transliteration (becomes a literal -) | |
1199 | handle \132 octal characters | |
1200 | handle 0x15 hex characters | |
1201 | handle \cV (control V) | |
1202 | handle printf backslashes (\f, \r, \n, etc) | |
1203 | } (end switch) | |
1204 | } (end if backslash) | |
1205 | } (end while character to read) | |
4e553d73 | 1206 | |
02aa26ce NT |
1207 | */ |
1208 | ||
76e3520e | 1209 | STATIC char * |
cea2e8a9 | 1210 | S_scan_const(pTHX_ char *start) |
79072805 | 1211 | { |
3280af22 | 1212 | register char *send = PL_bufend; /* end of the constant */ |
02aa26ce NT |
1213 | SV *sv = NEWSV(93, send - start); /* sv for the constant */ |
1214 | register char *s = start; /* start of the constant */ | |
1215 | register char *d = SvPVX(sv); /* destination for copies */ | |
1216 | bool dorange = FALSE; /* are we in a translit range? */ | |
c2e66d9e | 1217 | bool didrange = FALSE; /* did we just finish a range? */ |
9aa983d2 JH |
1218 | bool has_utf8 = (PL_linestr && SvUTF8(PL_linestr)); |
1219 | /* the constant is UTF8 */ | |
012bcf8d GS |
1220 | UV uv; |
1221 | ||
ac2262e3 | 1222 | I32 utf = (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) |
a0ed51b3 LW |
1223 | ? (PL_sublex_info.sub_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)) |
1224 | : UTF; | |
89491803 | 1225 | I32 this_utf8 = (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) |
9cbb5ea2 GS |
1226 | ? (PL_sublex_info.sub_op->op_private & (PL_lex_repl ? |
1227 | OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF)) | |
a0ed51b3 | 1228 | : UTF; |
dff6d3cd | 1229 | const char *leaveit = /* set of acceptably-backslashed characters */ |
3280af22 | 1230 | PL_lex_inpat |
4a2d328f | 1231 | ? "\\.^$@AGZdDwWsSbBpPXC+*?|()-nrtfeaxcz0123456789[{]} \t\n\r\f\v#" |
9b599b2a | 1232 | : ""; |
79072805 LW |
1233 | |
1234 | while (s < send || dorange) { | |
02aa26ce | 1235 | /* get transliterations out of the way (they're most literal) */ |
3280af22 | 1236 | if (PL_lex_inwhat == OP_TRANS) { |
02aa26ce | 1237 | /* expand a range A-Z to the full set of characters. AIE! */ |
79072805 | 1238 | if (dorange) { |
1ba5c669 JH |
1239 | I32 i; /* current expanded character */ |
1240 | I32 min; /* first character in range */ | |
1241 | I32 max; /* last character in range */ | |
02aa26ce | 1242 | |
8973db79 JH |
1243 | if (utf) { |
1244 | char *c = (char*)utf8_hop((U8*)d, -1); | |
1245 | char *e = d++; | |
1246 | while (e-- > c) | |
1247 | *(e + 1) = *e; | |
8b107d6c | 1248 | *c = (char)0xff; |
8973db79 JH |
1249 | /* mark the range as done, and continue */ |
1250 | dorange = FALSE; | |
1251 | didrange = TRUE; | |
1252 | continue; | |
1253 | } | |
02aa26ce | 1254 | i = d - SvPVX(sv); /* remember current offset */ |
9cbb5ea2 GS |
1255 | SvGROW(sv, SvLEN(sv) + 256); /* never more than 256 chars in a range */ |
1256 | d = SvPVX(sv) + i; /* refresh d after realloc */ | |
02aa26ce NT |
1257 | d -= 2; /* eat the first char and the - */ |
1258 | ||
8ada0baa JH |
1259 | min = (U8)*d; /* first char in range */ |
1260 | max = (U8)d[1]; /* last char in range */ | |
1261 | ||
c2e66d9e | 1262 | if (min > max) { |
01ec43d0 | 1263 | Perl_croak(aTHX_ |
1ba5c669 JH |
1264 | "Invalid [] range \"%c-%c\" in transliteration operator", |
1265 | (char)min, (char)max); | |
c2e66d9e GS |
1266 | } |
1267 | ||
1ba5c669 | 1268 | #ifndef ASCIIish |
8ada0baa JH |
1269 | if ((isLOWER(min) && isLOWER(max)) || |
1270 | (isUPPER(min) && isUPPER(max))) { | |
1271 | if (isLOWER(min)) { | |
1272 | for (i = min; i <= max; i++) | |
1273 | if (isLOWER(i)) | |
1274 | *d++ = i; | |
1275 | } else { | |
1276 | for (i = min; i <= max; i++) | |
1277 | if (isUPPER(i)) | |
1278 | *d++ = i; | |
1279 | } | |
1280 | } | |
1281 | else | |
1282 | #endif | |
1283 | for (i = min; i <= max; i++) | |
1284 | *d++ = i; | |
02aa26ce NT |
1285 | |
1286 | /* mark the range as done, and continue */ | |
79072805 | 1287 | dorange = FALSE; |
01ec43d0 | 1288 | didrange = TRUE; |
79072805 | 1289 | continue; |
4e553d73 | 1290 | } |
02aa26ce NT |
1291 | |
1292 | /* range begins (ignore - as first or last char) */ | |
79072805 | 1293 | else if (*s == '-' && s+1 < send && s != start) { |
4e553d73 | 1294 | if (didrange) { |
1fafa243 | 1295 | Perl_croak(aTHX_ "Ambiguous range in transliteration operator"); |
01ec43d0 | 1296 | } |
a0ed51b3 | 1297 | if (utf) { |
a176fa2a | 1298 | *d++ = (char)0xff; /* use illegal utf8 byte--see pmtrans */ |
a0ed51b3 LW |
1299 | s++; |
1300 | continue; | |
1301 | } | |
79072805 LW |
1302 | dorange = TRUE; |
1303 | s++; | |
01ec43d0 GS |
1304 | } |
1305 | else { | |
1306 | didrange = FALSE; | |
1307 | } | |
79072805 | 1308 | } |
02aa26ce NT |
1309 | |
1310 | /* if we get here, we're not doing a transliteration */ | |
1311 | ||
0f5d15d6 IZ |
1312 | /* skip for regexp comments /(?#comment)/ and code /(?{code})/, |
1313 | except for the last char, which will be done separately. */ | |
3280af22 | 1314 | else if (*s == '(' && PL_lex_inpat && s[1] == '?') { |
cc6b7395 IZ |
1315 | if (s[2] == '#') { |
1316 | while (s < send && *s != ')') | |
1317 | *d++ = *s++; | |
155aba94 GS |
1318 | } |
1319 | else if (s[2] == '{' /* This should match regcomp.c */ | |
1320 | || ((s[2] == 'p' || s[2] == '?') && s[3] == '{')) | |
1321 | { | |
cc6b7395 | 1322 | I32 count = 1; |
0f5d15d6 | 1323 | char *regparse = s + (s[2] == '{' ? 3 : 4); |
cc6b7395 IZ |
1324 | char c; |
1325 | ||
d9f97599 GS |
1326 | while (count && (c = *regparse)) { |
1327 | if (c == '\\' && regparse[1]) | |
1328 | regparse++; | |
4e553d73 | 1329 | else if (c == '{') |
cc6b7395 | 1330 | count++; |
4e553d73 | 1331 | else if (c == '}') |
cc6b7395 | 1332 | count--; |
d9f97599 | 1333 | regparse++; |
cc6b7395 | 1334 | } |
5bdf89e7 IZ |
1335 | if (*regparse != ')') { |
1336 | regparse--; /* Leave one char for continuation. */ | |
cc6b7395 | 1337 | yyerror("Sequence (?{...}) not terminated or not {}-balanced"); |
5bdf89e7 | 1338 | } |
0f5d15d6 | 1339 | while (s < regparse) |
cc6b7395 IZ |
1340 | *d++ = *s++; |
1341 | } | |
748a9306 | 1342 | } |
02aa26ce NT |
1343 | |
1344 | /* likewise skip #-initiated comments in //x patterns */ | |
3280af22 NIS |
1345 | else if (*s == '#' && PL_lex_inpat && |
1346 | ((PMOP*)PL_lex_inpat)->op_pmflags & PMf_EXTENDED) { | |
748a9306 LW |
1347 | while (s+1 < send && *s != '\n') |
1348 | *d++ = *s++; | |
1349 | } | |
02aa26ce | 1350 | |
5d1d4326 JH |
1351 | /* check for embedded arrays |
1352 | (@foo, @:foo, @'foo, @{foo}, @$foo, @+, @-) | |
1353 | */ | |
7e2040f0 | 1354 | else if (*s == '@' && s[1] |
5d1d4326 | 1355 | && (isALNUM_lazy_if(s+1,UTF) || strchr(":'{$+-", s[1]))) |
79072805 | 1356 | break; |
02aa26ce NT |
1357 | |
1358 | /* check for embedded scalars. only stop if we're sure it's a | |
1359 | variable. | |
1360 | */ | |
79072805 | 1361 | else if (*s == '$') { |
3280af22 | 1362 | if (!PL_lex_inpat) /* not a regexp, so $ must be var */ |
79072805 | 1363 | break; |
c277df42 | 1364 | if (s + 1 < send && !strchr("()| \n\t", s[1])) |
79072805 LW |
1365 | break; /* in regexp, $ might be tail anchor */ |
1366 | } | |
02aa26ce NT |
1367 | |
1368 | /* backslashes */ | |
79072805 LW |
1369 | if (*s == '\\' && s+1 < send) { |
1370 | s++; | |
02aa26ce NT |
1371 | |
1372 | /* some backslashes we leave behind */ | |
c9f97d15 | 1373 | if (*leaveit && *s && strchr(leaveit, *s)) { |
79072805 LW |
1374 | *d++ = '\\'; |
1375 | *d++ = *s++; | |
1376 | continue; | |
1377 | } | |
02aa26ce NT |
1378 | |
1379 | /* deprecate \1 in strings and substitution replacements */ | |
3280af22 | 1380 | if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat && |
a0d0e21e | 1381 | isDIGIT(*s) && *s != '0' && !isDIGIT(s[1])) |
79072805 | 1382 | { |
599cee73 | 1383 | if (ckWARN(WARN_SYNTAX)) |
cea2e8a9 | 1384 | Perl_warner(aTHX_ WARN_SYNTAX, "\\%c better written as $%c", *s, *s); |
79072805 LW |
1385 | *--s = '$'; |
1386 | break; | |
1387 | } | |
02aa26ce NT |
1388 | |
1389 | /* string-change backslash escapes */ | |
3280af22 | 1390 | if (PL_lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) { |
79072805 LW |
1391 | --s; |
1392 | break; | |
1393 | } | |
02aa26ce NT |
1394 | |
1395 | /* if we get here, it's either a quoted -, or a digit */ | |
79072805 | 1396 | switch (*s) { |
02aa26ce NT |
1397 | |
1398 | /* quoted - in transliterations */ | |
79072805 | 1399 | case '-': |
3280af22 | 1400 | if (PL_lex_inwhat == OP_TRANS) { |
79072805 LW |
1401 | *d++ = *s++; |
1402 | continue; | |
1403 | } | |
1404 | /* FALL THROUGH */ | |
1405 | default: | |
11b8faa4 | 1406 | { |
7e84c16c | 1407 | if (ckWARN(WARN_MISC) && isALNUM(*s)) |
4e553d73 | 1408 | Perl_warner(aTHX_ WARN_MISC, |
11b8faa4 JH |
1409 | "Unrecognized escape \\%c passed through", |
1410 | *s); | |
1411 | /* default action is to copy the quoted character */ | |
f9a63242 | 1412 | goto default_action; |
11b8faa4 | 1413 | } |
02aa26ce NT |
1414 | |
1415 | /* \132 indicates an octal constant */ | |
79072805 LW |
1416 | case '0': case '1': case '2': case '3': |
1417 | case '4': case '5': case '6': case '7': | |
ba210ebe JH |
1418 | { |
1419 | STRLEN len = 0; /* disallow underscores */ | |
1420 | uv = (UV)scan_oct(s, 3, &len); | |
1421 | s += len; | |
1422 | } | |
012bcf8d | 1423 | goto NUM_ESCAPE_INSERT; |
02aa26ce NT |
1424 | |
1425 | /* \x24 indicates a hex constant */ | |
79072805 | 1426 | case 'x': |
a0ed51b3 LW |
1427 | ++s; |
1428 | if (*s == '{') { | |
1429 | char* e = strchr(s, '}'); | |
adaeee49 | 1430 | if (!e) { |
a0ed51b3 | 1431 | yyerror("Missing right brace on \\x{}"); |
adaeee49 GA |
1432 | e = s; |
1433 | } | |
89491803 | 1434 | else { |
ba210ebe JH |
1435 | STRLEN len = 1; /* allow underscores */ |
1436 | uv = (UV)scan_hex(s + 1, e - s - 1, &len); | |
1437 | } | |
1438 | s = e + 1; | |
a0ed51b3 LW |
1439 | } |
1440 | else { | |
ba210ebe JH |
1441 | { |
1442 | STRLEN len = 0; /* disallow underscores */ | |
1443 | uv = (UV)scan_hex(s, 2, &len); | |
1444 | s += len; | |
1445 | } | |
012bcf8d GS |
1446 | } |
1447 | ||
1448 | NUM_ESCAPE_INSERT: | |
1449 | /* Insert oct or hex escaped character. | |
301d3d20 JH |
1450 | * There will always enough room in sv since such |
1451 | * escapes will be longer than any UT-F8 sequence | |
1452 | * they can end up as. */ | |
ba7cea30 JH |
1453 | |
1454 | /* This spot is wrong for EBCDIC. Characters like | |
1455 | * the lowercase letters and digits are >127 in EBCDIC, | |
1456 | * so here they would need to be mapped to the Unicode | |
1457 | * repertoire. --jhi */ | |
1458 | ||
7948272d | 1459 | if (uv > 127) { |
9aa983d2 | 1460 | if (!has_utf8 && uv > 255) { |
301d3d20 JH |
1461 | /* Might need to recode whatever we have |
1462 | * accumulated so far if it contains any | |
1463 | * hibit chars. | |
1464 | * | |
1465 | * (Can't we keep track of that and avoid | |
1466 | * this rescan? --jhi) | |
012bcf8d GS |
1467 | */ |
1468 | int hicount = 0; | |
1469 | char *c; | |
301d3d20 | 1470 | |
012bcf8d | 1471 | for (c = SvPVX(sv); c < d; c++) { |
fd400ab9 | 1472 | if (UTF8_IS_CONTINUED(*c)) |
012bcf8d GS |
1473 | hicount++; |
1474 | } | |
1475 | if (hicount) { | |
1476 | char *old_pvx = SvPVX(sv); | |
1477 | char *src, *dst; | |
301d3d20 JH |
1478 | |
1479 | d = SvGROW(sv, | |
8973db79 | 1480 | SvLEN(sv) + hicount + 1) + |
301d3d20 | 1481 | (d - old_pvx); |
012bcf8d GS |
1482 | |
1483 | src = d - 1; | |
1484 | d += hicount; | |
1485 | dst = d - 1; | |
1486 | ||
1487 | while (src < dst) { | |
fd400ab9 | 1488 | if (UTF8_IS_CONTINUED(*src)) { |
9b877dbb IH |
1489 | *dst-- = UTF8_EIGHT_BIT_LO(*src); |
1490 | *dst-- = UTF8_EIGHT_BIT_HI(*src--); | |
012bcf8d GS |
1491 | } |
1492 | else { | |
1493 | *dst-- = *src--; | |
1494 | } | |
1495 | } | |
1496 | } | |
1497 | } | |
1498 | ||
9aa983d2 | 1499 | if (has_utf8 || uv > 255) { |
012bcf8d | 1500 | d = (char*)uv_to_utf8((U8*)d, uv); |
4e553d73 | 1501 | has_utf8 = TRUE; |
f9a63242 JH |
1502 | if (PL_lex_inwhat == OP_TRANS && |
1503 | PL_sublex_info.sub_op) { | |
1504 | PL_sublex_info.sub_op->op_private |= | |
1505 | (PL_lex_repl ? OPpTRANS_FROM_UTF | |
1506 | : OPpTRANS_TO_UTF); | |
1507 | utf = TRUE; | |
1508 | } | |
012bcf8d | 1509 | } |
a0ed51b3 | 1510 | else { |
012bcf8d | 1511 | *d++ = (char)uv; |
a0ed51b3 | 1512 | } |
012bcf8d GS |
1513 | } |
1514 | else { | |
1515 | *d++ = (char)uv; | |
a0ed51b3 | 1516 | } |
79072805 | 1517 | continue; |
02aa26ce | 1518 | |
4a2d328f IZ |
1519 | /* \N{latin small letter a} is a named character */ |
1520 | case 'N': | |
55eda711 | 1521 | ++s; |
423cee85 JH |
1522 | if (*s == '{') { |
1523 | char* e = strchr(s, '}'); | |
155aba94 | 1524 | SV *res; |
423cee85 JH |
1525 | STRLEN len; |
1526 | char *str; | |
4e553d73 | 1527 | |
423cee85 | 1528 | if (!e) { |
5777a3f7 | 1529 | yyerror("Missing right brace on \\N{}"); |
423cee85 JH |
1530 | e = s - 1; |
1531 | goto cont_scan; | |
1532 | } | |
55eda711 JH |
1533 | res = newSVpvn(s + 1, e - s - 1); |
1534 | res = new_constant( Nullch, 0, "charnames", | |
1535 | res, Nullsv, "\\N{...}" ); | |
f9a63242 JH |
1536 | if (has_utf8) |
1537 | sv_utf8_upgrade(res); | |
423cee85 | 1538 | str = SvPV(res,len); |
89491803 | 1539 | if (!has_utf8 && SvUTF8(res)) { |
f08d6ad9 GS |
1540 | char *ostart = SvPVX(sv); |
1541 | SvCUR_set(sv, d - ostart); | |
1542 | SvPOK_on(sv); | |
e4f3eed8 | 1543 | *d = '\0'; |
f08d6ad9 | 1544 | sv_utf8_upgrade(sv); |
d2f449dd SB |
1545 | /* this just broke our allocation above... */ |
1546 | SvGROW(sv, send - start); | |
f08d6ad9 | 1547 | d = SvPVX(sv) + SvCUR(sv); |
89491803 | 1548 | has_utf8 = TRUE; |
f08d6ad9 | 1549 | } |
423cee85 JH |
1550 | if (len > e - s + 4) { |
1551 | char *odest = SvPVX(sv); | |
1552 | ||
8973db79 | 1553 | SvGROW(sv, (SvLEN(sv) + len - (e - s + 4))); |
423cee85 JH |
1554 | d = SvPVX(sv) + (d - odest); |
1555 | } | |
1556 | Copy(str, d, len, char); | |
1557 | d += len; | |
1558 | SvREFCNT_dec(res); | |
1559 | cont_scan: | |
1560 | s = e + 1; | |
1561 | } | |
1562 | else | |
5777a3f7 | 1563 | yyerror("Missing braces on \\N{}"); |
423cee85 JH |
1564 | continue; |
1565 | ||
02aa26ce | 1566 | /* \c is a control character */ |
79072805 LW |
1567 | case 'c': |
1568 | s++; | |
9d116dd7 JH |
1569 | #ifdef EBCDIC |
1570 | *d = *s++; | |
1571 | if (isLOWER(*d)) | |
1572 | *d = toUPPER(*d); | |
4e553d73 | 1573 | *d = toCTRL(*d); |
774a9426 | 1574 | d++; |
9d116dd7 | 1575 | #else |
ba210ebe JH |
1576 | { |
1577 | U8 c = *s++; | |
1578 | *d++ = toCTRL(c); | |
1579 | } | |
9d116dd7 | 1580 | #endif |
79072805 | 1581 | continue; |
02aa26ce NT |
1582 | |
1583 | /* printf-style backslashes, formfeeds, newlines, etc */ | |
79072805 LW |
1584 | case 'b': |
1585 | *d++ = '\b'; | |
1586 | break; | |
1587 | case 'n': | |
1588 | *d++ = '\n'; | |
1589 | break; | |
1590 | case 'r': | |
1591 | *d++ = '\r'; | |
1592 | break; | |
1593 | case 'f': | |
1594 | *d++ = '\f'; | |
1595 | break; | |
1596 | case 't': | |
1597 | *d++ = '\t'; | |
1598 | break; | |
34a3fe2a PP |
1599 | #ifdef EBCDIC |
1600 | case 'e': | |
1601 | *d++ = '\047'; /* CP 1047 */ | |
1602 | break; | |
1603 | case 'a': | |
1604 | *d++ = '\057'; /* CP 1047 */ | |
1605 | break; | |
1606 | #else | |
79072805 LW |
1607 | case 'e': |
1608 | *d++ = '\033'; | |
1609 | break; | |
1610 | case 'a': | |
1611 | *d++ = '\007'; | |
1612 | break; | |
34a3fe2a | 1613 | #endif |
02aa26ce NT |
1614 | } /* end switch */ |
1615 | ||
79072805 LW |
1616 | s++; |
1617 | continue; | |
02aa26ce NT |
1618 | } /* end if (backslash) */ |
1619 | ||
f9a63242 | 1620 | default_action: |
fd400ab9 | 1621 | if (UTF8_IS_CONTINUED(*s) && (this_utf8 || has_utf8)) { |
a5a960be IRC |
1622 | STRLEN len = (STRLEN) -1; |
1623 | UV uv; | |
1624 | if (this_utf8) { | |
a0dbb045 | 1625 | uv = utf8_to_uv((U8*)s, send - s, &len, 0); |
a5a960be IRC |
1626 | } |
1627 | if (len == (STRLEN)-1) { | |
1628 | /* Illegal UTF8 (a high-bit byte), make it valid. */ | |
1629 | char *old_pvx = SvPVX(sv); | |
1630 | /* need space for one extra char (NOTE: SvCUR() not set here) */ | |
1631 | d = SvGROW(sv, SvLEN(sv) + 1) + (d - old_pvx); | |
1632 | d = (char*)uv_to_utf8((U8*)d, (U8)*s++); | |
1633 | } | |
1634 | else { | |
1635 | while (len--) | |
1636 | *d++ = *s++; | |
1637 | } | |
1638 | has_utf8 = TRUE; | |
f9a63242 JH |
1639 | if (PL_lex_inwhat == OP_TRANS && PL_sublex_info.sub_op) { |
1640 | PL_sublex_info.sub_op->op_private |= | |
1641 | (PL_lex_repl ? OPpTRANS_FROM_UTF : OPpTRANS_TO_UTF); | |
1642 | utf = TRUE; | |
1643 | } | |
a5a960be IRC |
1644 | continue; |
1645 | } | |
1646 | ||
f9a63242 | 1647 | *d++ = *s++; |
02aa26ce NT |
1648 | } /* while loop to process each character */ |
1649 | ||
1650 | /* terminate the string and set up the sv */ | |
79072805 | 1651 | *d = '\0'; |
463ee0b2 | 1652 | SvCUR_set(sv, d - SvPVX(sv)); |
79072805 | 1653 | SvPOK_on(sv); |
89491803 | 1654 | if (has_utf8) |
7e2040f0 | 1655 | SvUTF8_on(sv); |
79072805 | 1656 | |
02aa26ce | 1657 | /* shrink the sv if we allocated more than we used */ |
79072805 LW |
1658 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
1659 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 1660 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 | 1661 | } |
02aa26ce | 1662 | |
9b599b2a | 1663 | /* return the substring (via yylval) only if we parsed anything */ |
3280af22 NIS |
1664 | if (s > PL_bufptr) { |
1665 | if ( PL_hints & ( PL_lex_inpat ? HINT_NEW_RE : HINT_NEW_STRING ) ) | |
4e553d73 | 1666 | sv = new_constant(start, s - start, (PL_lex_inpat ? "qr" : "q"), |
b3ac6de7 | 1667 | sv, Nullsv, |
4e553d73 | 1668 | ( PL_lex_inwhat == OP_TRANS |
b3ac6de7 | 1669 | ? "tr" |
3280af22 | 1670 | : ( (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat) |
b3ac6de7 IZ |
1671 | ? "s" |
1672 | : "qq"))); | |
79072805 | 1673 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
b3ac6de7 | 1674 | } else |
8990e307 | 1675 | SvREFCNT_dec(sv); |
79072805 LW |
1676 | return s; |
1677 | } | |
1678 | ||
ffb4593c NT |
1679 | /* S_intuit_more |
1680 | * Returns TRUE if there's more to the expression (e.g., a subscript), | |
1681 | * FALSE otherwise. | |
ffb4593c NT |
1682 | * |
1683 | * It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/ | |
1684 | * | |
1685 | * ->[ and ->{ return TRUE | |
1686 | * { and [ outside a pattern are always subscripts, so return TRUE | |
1687 | * if we're outside a pattern and it's not { or [, then return FALSE | |
1688 | * if we're in a pattern and the first char is a { | |
1689 | * {4,5} (any digits around the comma) returns FALSE | |
1690 | * if we're in a pattern and the first char is a [ | |
1691 | * [] returns FALSE | |
1692 | * [SOMETHING] has a funky algorithm to decide whether it's a | |
1693 | * character class or not. It has to deal with things like | |
1694 | * /$foo[-3]/ and /$foo[$bar]/ as well as /$foo[$\d]+/ | |
1695 | * anything else returns TRUE | |
1696 | */ | |
1697 | ||
9cbb5ea2 GS |
1698 | /* This is the one truly awful dwimmer necessary to conflate C and sed. */ |
1699 | ||
76e3520e | 1700 | STATIC int |
cea2e8a9 | 1701 | S_intuit_more(pTHX_ register char *s) |
79072805 | 1702 | { |
3280af22 | 1703 | if (PL_lex_brackets) |
79072805 LW |
1704 | return TRUE; |
1705 | if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{')) | |
1706 | return TRUE; | |
1707 | if (*s != '{' && *s != '[') | |
1708 | return FALSE; | |
3280af22 | 1709 | if (!PL_lex_inpat) |
79072805 LW |
1710 | return TRUE; |
1711 | ||
1712 | /* In a pattern, so maybe we have {n,m}. */ | |
1713 | if (*s == '{') { | |
1714 | s++; | |
1715 | if (!isDIGIT(*s)) | |
1716 | return TRUE; | |
1717 | while (isDIGIT(*s)) | |
1718 | s++; | |
1719 | if (*s == ',') | |
1720 | s++; | |
1721 | while (isDIGIT(*s)) | |
1722 | s++; | |
1723 | if (*s == '}') | |
1724 | return FALSE; | |
1725 | return TRUE; | |
1726 | ||
1727 | } | |
1728 | ||
1729 | /* On the other hand, maybe we have a character class */ | |
1730 | ||
1731 | s++; | |
1732 | if (*s == ']' || *s == '^') | |
1733 | return FALSE; | |
1734 | else { | |
ffb4593c | 1735 | /* this is terrifying, and it works */ |
79072805 LW |
1736 | int weight = 2; /* let's weigh the evidence */ |
1737 | char seen[256]; | |
f27ffc4a | 1738 | unsigned char un_char = 255, last_un_char; |
93a17b20 | 1739 | char *send = strchr(s,']'); |
3280af22 | 1740 | char tmpbuf[sizeof PL_tokenbuf * 4]; |
79072805 LW |
1741 | |
1742 | if (!send) /* has to be an expression */ | |
1743 | return TRUE; | |
1744 | ||
1745 | Zero(seen,256,char); | |
1746 | if (*s == '$') | |
1747 | weight -= 3; | |
1748 | else if (isDIGIT(*s)) { | |
1749 | if (s[1] != ']') { | |
1750 | if (isDIGIT(s[1]) && s[2] == ']') | |
1751 | weight -= 10; | |
1752 | } | |
1753 | else | |
1754 | weight -= 100; | |
1755 | } | |
1756 | for (; s < send; s++) { | |
1757 | last_un_char = un_char; | |
1758 | un_char = (unsigned char)*s; | |
1759 | switch (*s) { | |
1760 | case '@': | |
1761 | case '&': | |
1762 | case '$': | |
1763 | weight -= seen[un_char] * 10; | |
7e2040f0 | 1764 | if (isALNUM_lazy_if(s+1,UTF)) { |
8903cb82 | 1765 | scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE); |
a0d0e21e | 1766 | if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV)) |
79072805 LW |
1767 | weight -= 100; |
1768 | else | |
1769 | weight -= 10; | |
1770 | } | |
1771 | else if (*s == '$' && s[1] && | |
93a17b20 LW |
1772 | strchr("[#!%*<>()-=",s[1])) { |
1773 | if (/*{*/ strchr("])} =",s[2])) | |
79072805 LW |
1774 | weight -= 10; |
1775 | else | |
1776 | weight -= 1; | |
1777 | } | |
1778 | break; | |
1779 | case '\\': | |
1780 | un_char = 254; | |
1781 | if (s[1]) { | |
93a17b20 | 1782 | if (strchr("wds]",s[1])) |
79072805 LW |
1783 | weight += 100; |
1784 | else if (seen['\''] || seen['"']) | |
1785 | weight += 1; | |
93a17b20 | 1786 | else if (strchr("rnftbxcav",s[1])) |
79072805 LW |
1787 | weight += 40; |
1788 | else if (isDIGIT(s[1])) { | |
1789 | weight += 40; | |
1790 | while (s[1] && isDIGIT(s[1])) | |
1791 | s++; | |
1792 | } | |
1793 | } | |
1794 | else | |
1795 | weight += 100; | |
1796 | break; | |
1797 | case '-': | |
1798 | if (s[1] == '\\') | |
1799 | weight += 50; | |
93a17b20 | 1800 | if (strchr("aA01! ",last_un_char)) |
79072805 | 1801 | weight += 30; |
93a17b20 | 1802 | if (strchr("zZ79~",s[1])) |
79072805 | 1803 | weight += 30; |
f27ffc4a GS |
1804 | if (last_un_char == 255 && (isDIGIT(s[1]) || s[1] == '$')) |
1805 | weight -= 5; /* cope with negative subscript */ | |
79072805 LW |
1806 | break; |
1807 | default: | |
93a17b20 | 1808 | if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) && |
79072805 LW |
1809 | isALPHA(*s) && s[1] && isALPHA(s[1])) { |
1810 | char *d = tmpbuf; | |
1811 | while (isALPHA(*s)) | |
1812 | *d++ = *s++; | |
1813 | *d = '\0'; | |
1814 | if (keyword(tmpbuf, d - tmpbuf)) | |
1815 | weight -= 150; | |
1816 | } | |
1817 | if (un_char == last_un_char + 1) | |
1818 | weight += 5; | |
1819 | weight -= seen[un_char]; | |
1820 | break; | |
1821 | } | |
1822 | seen[un_char]++; | |
1823 | } | |
1824 | if (weight >= 0) /* probably a character class */ | |
1825 | return FALSE; | |
1826 | } | |
1827 | ||
1828 | return TRUE; | |
1829 | } | |
ffed7fef | 1830 | |
ffb4593c NT |
1831 | /* |
1832 | * S_intuit_method | |
1833 | * | |
1834 | * Does all the checking to disambiguate | |
1835 | * foo bar | |
1836 | * between foo(bar) and bar->foo. Returns 0 if not a method, otherwise | |
1837 | * FUNCMETH (bar->foo(args)) or METHOD (bar->foo args). | |
1838 | * | |
1839 | * First argument is the stuff after the first token, e.g. "bar". | |
1840 | * | |
1841 | * Not a method if bar is a filehandle. | |
1842 | * Not a method if foo is a subroutine prototyped to take a filehandle. | |
1843 | * Not a method if it's really "Foo $bar" | |
1844 | * Method if it's "foo $bar" | |
1845 | * Not a method if it's really "print foo $bar" | |
1846 | * Method if it's really "foo package::" (interpreted as package->foo) | |
1847 | * Not a method if bar is known to be a subroutne ("sub bar; foo bar") | |
3cb0bbe5 | 1848 | * Not a method if bar is a filehandle or package, but is quoted with |
ffb4593c NT |
1849 | * => |
1850 | */ | |
1851 | ||
76e3520e | 1852 | STATIC int |
cea2e8a9 | 1853 | S_intuit_method(pTHX_ char *start, GV *gv) |
a0d0e21e LW |
1854 | { |
1855 | char *s = start + (*start == '$'); | |
3280af22 | 1856 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
1857 | STRLEN len; |
1858 | GV* indirgv; | |
1859 | ||
1860 | if (gv) { | |
b6c543e3 | 1861 | CV *cv; |
a0d0e21e LW |
1862 | if (GvIO(gv)) |
1863 | return 0; | |
b6c543e3 IZ |
1864 | if ((cv = GvCVu(gv))) { |
1865 | char *proto = SvPVX(cv); | |
1866 | if (proto) { | |
1867 | if (*proto == ';') | |
1868 | proto++; | |
1869 | if (*proto == '*') | |
1870 | return 0; | |
1871 | } | |
1872 | } else | |
a0d0e21e LW |
1873 | gv = 0; |
1874 | } | |
8903cb82 | 1875 | s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
ffb4593c NT |
1876 | /* start is the beginning of the possible filehandle/object, |
1877 | * and s is the end of it | |
1878 | * tmpbuf is a copy of it | |
1879 | */ | |
1880 | ||
a0d0e21e | 1881 | if (*start == '$') { |
3280af22 | 1882 | if (gv || PL_last_lop_op == OP_PRINT || isUPPER(*PL_tokenbuf)) |
a0d0e21e LW |
1883 | return 0; |
1884 | s = skipspace(s); | |
3280af22 NIS |
1885 | PL_bufptr = start; |
1886 | PL_expect = XREF; | |
a0d0e21e LW |
1887 | return *s == '(' ? FUNCMETH : METHOD; |
1888 | } | |
1889 | if (!keyword(tmpbuf, len)) { | |
c3e0f903 GS |
1890 | if (len > 2 && tmpbuf[len - 2] == ':' && tmpbuf[len - 1] == ':') { |
1891 | len -= 2; | |
1892 | tmpbuf[len] = '\0'; | |
1893 | goto bare_package; | |
1894 | } | |
1895 | indirgv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
8ebc5c01 | 1896 | if (indirgv && GvCVu(indirgv)) |
a0d0e21e LW |
1897 | return 0; |
1898 | /* filehandle or package name makes it a method */ | |
89bfa8cd | 1899 | if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) { |
a0d0e21e | 1900 | s = skipspace(s); |
3280af22 | 1901 | if ((PL_bufend - s) >= 2 && *s == '=' && *(s+1) == '>') |
55497cff | 1902 | return 0; /* no assumptions -- "=>" quotes bearword */ |
c3e0f903 | 1903 | bare_package: |
3280af22 | 1904 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, |
79cb57f6 | 1905 | newSVpvn(tmpbuf,len)); |
3280af22 NIS |
1906 | PL_nextval[PL_nexttoke].opval->op_private = OPpCONST_BARE; |
1907 | PL_expect = XTERM; | |
a0d0e21e | 1908 | force_next(WORD); |
3280af22 | 1909 | PL_bufptr = s; |
a0d0e21e LW |
1910 | return *s == '(' ? FUNCMETH : METHOD; |
1911 | } | |
1912 | } | |
1913 | return 0; | |
1914 | } | |
1915 | ||
ffb4593c NT |
1916 | /* |
1917 | * S_incl_perldb | |
1918 | * Return a string of Perl code to load the debugger. If PERL5DB | |
1919 | * is set, it will return the contents of that, otherwise a | |
1920 | * compile-time require of perl5db.pl. | |
1921 | */ | |
1922 | ||
76e3520e | 1923 | STATIC char* |
cea2e8a9 | 1924 | S_incl_perldb(pTHX) |
a0d0e21e | 1925 | { |
3280af22 | 1926 | if (PL_perldb) { |
76e3520e | 1927 | char *pdb = PerlEnv_getenv("PERL5DB"); |
a0d0e21e LW |
1928 | |
1929 | if (pdb) | |
1930 | return pdb; | |
61bb5906 | 1931 | SETERRNO(0,SS$_NORMAL); |
a0d0e21e LW |
1932 | return "BEGIN { require 'perl5db.pl' }"; |
1933 | } | |
1934 | return ""; | |
1935 | } | |
1936 | ||
1937 | ||
16d20bd9 | 1938 | /* Encoded script support. filter_add() effectively inserts a |
4e553d73 | 1939 | * 'pre-processing' function into the current source input stream. |
16d20bd9 AD |
1940 | * Note that the filter function only applies to the current source file |
1941 | * (e.g., it will not affect files 'require'd or 'use'd by this one). | |
1942 | * | |
1943 | * The datasv parameter (which may be NULL) can be used to pass | |
1944 | * private data to this instance of the filter. The filter function | |
1945 | * can recover the SV using the FILTER_DATA macro and use it to | |
1946 | * store private buffers and state information. | |
1947 | * | |
1948 | * The supplied datasv parameter is upgraded to a PVIO type | |
4755096e | 1949 | * and the IoDIRP/IoANY field is used to store the function pointer, |
e0c19803 | 1950 | * and IOf_FAKE_DIRP is enabled on datasv to mark this as such. |
16d20bd9 AD |
1951 | * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for |
1952 | * private use must be set using malloc'd pointers. | |
1953 | */ | |
16d20bd9 AD |
1954 | |
1955 | SV * | |
864dbfa3 | 1956 | Perl_filter_add(pTHX_ filter_t funcp, SV *datasv) |
16d20bd9 | 1957 | { |
f4c556ac GS |
1958 | if (!funcp) |
1959 | return Nullsv; | |
1960 | ||
3280af22 NIS |
1961 | if (!PL_rsfp_filters) |
1962 | PL_rsfp_filters = newAV(); | |
16d20bd9 | 1963 | if (!datasv) |
8c52afec | 1964 | datasv = NEWSV(255,0); |
16d20bd9 | 1965 | if (!SvUPGRADE(datasv, SVt_PVIO)) |
cea2e8a9 | 1966 | Perl_die(aTHX_ "Can't upgrade filter_add data to SVt_PVIO"); |
4755096e | 1967 | IoANY(datasv) = (void *)funcp; /* stash funcp into spare field */ |
e0c19803 | 1968 | IoFLAGS(datasv) |= IOf_FAKE_DIRP; |
f4c556ac GS |
1969 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_add func %p (%s)\n", |
1970 | funcp, SvPV_nolen(datasv))); | |
3280af22 NIS |
1971 | av_unshift(PL_rsfp_filters, 1); |
1972 | av_store(PL_rsfp_filters, 0, datasv) ; | |
16d20bd9 AD |
1973 | return(datasv); |
1974 | } | |
4e553d73 | 1975 | |
16d20bd9 AD |
1976 | |
1977 | /* Delete most recently added instance of this filter function. */ | |
a0d0e21e | 1978 | void |
864dbfa3 | 1979 | Perl_filter_del(pTHX_ filter_t funcp) |
16d20bd9 | 1980 | { |
e0c19803 | 1981 | SV *datasv; |
f4c556ac | 1982 | DEBUG_P(PerlIO_printf(Perl_debug_log, "filter_del func %p", funcp)); |
3280af22 | 1983 | if (!PL_rsfp_filters || AvFILLp(PL_rsfp_filters)<0) |
16d20bd9 AD |
1984 | return; |
1985 | /* if filter is on top of stack (usual case) just pop it off */ | |
e0c19803 | 1986 | datasv = FILTER_DATA(AvFILLp(PL_rsfp_filters)); |
4755096e | 1987 | if (IoANY(datasv) == (void *)funcp) { |
e0c19803 | 1988 | IoFLAGS(datasv) &= ~IOf_FAKE_DIRP; |
4755096e | 1989 | IoANY(datasv) = (void *)NULL; |
3280af22 | 1990 | sv_free(av_pop(PL_rsfp_filters)); |
e50aee73 | 1991 | |
16d20bd9 AD |
1992 | return; |
1993 | } | |
1994 | /* we need to search for the correct entry and clear it */ | |
cea2e8a9 | 1995 | Perl_die(aTHX_ "filter_del can only delete in reverse order (currently)"); |
16d20bd9 AD |
1996 | } |
1997 | ||
1998 | ||
1999 | /* Invoke the n'th filter function for the current rsfp. */ | |
2000 | I32 | |
864dbfa3 | 2001 | Perl_filter_read(pTHX_ int idx, SV *buf_sv, int maxlen) |
4e553d73 NIS |
2002 | |
2003 | ||
8ac85365 | 2004 | /* 0 = read one text line */ |
a0d0e21e | 2005 | { |
16d20bd9 AD |
2006 | filter_t funcp; |
2007 | SV *datasv = NULL; | |
e50aee73 | 2008 | |
3280af22 | 2009 | if (!PL_rsfp_filters) |
16d20bd9 | 2010 | return -1; |
3280af22 | 2011 | if (idx > AvFILLp(PL_rsfp_filters)){ /* Any more filters? */ |
16d20bd9 AD |
2012 | /* Provide a default input filter to make life easy. */ |
2013 | /* Note that we append to the line. This is handy. */ | |
f4c556ac GS |
2014 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2015 | "filter_read %d: from rsfp\n", idx)); | |
4e553d73 | 2016 | if (maxlen) { |
16d20bd9 AD |
2017 | /* Want a block */ |
2018 | int len ; | |
2019 | int old_len = SvCUR(buf_sv) ; | |
2020 | ||
2021 | /* ensure buf_sv is large enough */ | |
2022 | SvGROW(buf_sv, old_len + maxlen) ; | |
3280af22 NIS |
2023 | if ((len = PerlIO_read(PL_rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){ |
2024 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2025 | return -1; /* error */ |
2026 | else | |
2027 | return 0 ; /* end of file */ | |
2028 | } | |
16d20bd9 AD |
2029 | SvCUR_set(buf_sv, old_len + len) ; |
2030 | } else { | |
2031 | /* Want a line */ | |
3280af22 NIS |
2032 | if (sv_gets(buf_sv, PL_rsfp, SvCUR(buf_sv)) == NULL) { |
2033 | if (PerlIO_error(PL_rsfp)) | |
37120919 AD |
2034 | return -1; /* error */ |
2035 | else | |
2036 | return 0 ; /* end of file */ | |
2037 | } | |
16d20bd9 AD |
2038 | } |
2039 | return SvCUR(buf_sv); | |
2040 | } | |
2041 | /* Skip this filter slot if filter has been deleted */ | |
3280af22 | 2042 | if ( (datasv = FILTER_DATA(idx)) == &PL_sv_undef){ |
f4c556ac GS |
2043 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2044 | "filter_read %d: skipped (filter deleted)\n", | |
2045 | idx)); | |
16d20bd9 AD |
2046 | return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */ |
2047 | } | |
2048 | /* Get function pointer hidden within datasv */ | |
4755096e | 2049 | funcp = (filter_t)IoANY(datasv); |
f4c556ac GS |
2050 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
2051 | "filter_read %d: via function %p (%s)\n", | |
2052 | idx, funcp, SvPV_nolen(datasv))); | |
16d20bd9 AD |
2053 | /* Call function. The function is expected to */ |
2054 | /* call "FILTER_READ(idx+1, buf_sv)" first. */ | |
37120919 | 2055 | /* Return: <0:error, =0:eof, >0:not eof */ |
0cb96387 | 2056 | return (*funcp)(aTHXo_ idx, buf_sv, maxlen); |
16d20bd9 AD |
2057 | } |
2058 | ||
76e3520e | 2059 | STATIC char * |
cea2e8a9 | 2060 | S_filter_gets(pTHX_ register SV *sv, register PerlIO *fp, STRLEN append) |
16d20bd9 | 2061 | { |
c39cd008 | 2062 | #ifdef PERL_CR_FILTER |
3280af22 | 2063 | if (!PL_rsfp_filters) { |
c39cd008 | 2064 | filter_add(S_cr_textfilter,NULL); |
a868473f NIS |
2065 | } |
2066 | #endif | |
3280af22 | 2067 | if (PL_rsfp_filters) { |
16d20bd9 | 2068 | |
55497cff | 2069 | if (!append) |
2070 | SvCUR_set(sv, 0); /* start with empty line */ | |
16d20bd9 AD |
2071 | if (FILTER_READ(0, sv, 0) > 0) |
2072 | return ( SvPVX(sv) ) ; | |
2073 | else | |
2074 | return Nullch ; | |
2075 | } | |
9d116dd7 | 2076 | else |
fd049845 | 2077 | return (sv_gets(sv, fp, append)); |
a0d0e21e LW |
2078 | } |
2079 | ||
01ec43d0 GS |
2080 | STATIC HV * |
2081 | S_find_in_my_stash(pTHX_ char *pkgname, I32 len) | |
def3634b GS |
2082 | { |
2083 | GV *gv; | |
2084 | ||
01ec43d0 | 2085 | if (len == 11 && *pkgname == '_' && strEQ(pkgname, "__PACKAGE__")) |
def3634b GS |
2086 | return PL_curstash; |
2087 | ||
2088 | if (len > 2 && | |
2089 | (pkgname[len - 2] == ':' && pkgname[len - 1] == ':') && | |
01ec43d0 GS |
2090 | (gv = gv_fetchpv(pkgname, FALSE, SVt_PVHV))) |
2091 | { | |
2092 | return GvHV(gv); /* Foo:: */ | |
def3634b GS |
2093 | } |
2094 | ||
2095 | /* use constant CLASS => 'MyClass' */ | |
2096 | if ((gv = gv_fetchpv(pkgname, FALSE, SVt_PVCV))) { | |
2097 | SV *sv; | |
2098 | if (GvCV(gv) && (sv = cv_const_sv(GvCV(gv)))) { | |
2099 | pkgname = SvPV_nolen(sv); | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | return gv_stashpv(pkgname, FALSE); | |
2104 | } | |
a0d0e21e | 2105 | |
748a9306 LW |
2106 | #ifdef DEBUGGING |
2107 | static char* exp_name[] = | |
09bef843 SB |
2108 | { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK", |
2109 | "ATTRTERM", "TERMBLOCK" | |
2110 | }; | |
748a9306 | 2111 | #endif |
463ee0b2 | 2112 | |
02aa26ce NT |
2113 | /* |
2114 | yylex | |
2115 | ||
2116 | Works out what to call the token just pulled out of the input | |
2117 | stream. The yacc parser takes care of taking the ops we return and | |
2118 | stitching them into a tree. | |
2119 | ||
2120 | Returns: | |
2121 | PRIVATEREF | |
2122 | ||
2123 | Structure: | |
2124 | if read an identifier | |
2125 | if we're in a my declaration | |
2126 | croak if they tried to say my($foo::bar) | |
2127 | build the ops for a my() declaration | |
2128 | if it's an access to a my() variable | |
2129 | are we in a sort block? | |
2130 | croak if my($a); $a <=> $b | |
2131 | build ops for access to a my() variable | |
2132 | if in a dq string, and they've said @foo and we can't find @foo | |
2133 | croak | |
2134 | build ops for a bareword | |
2135 | if we already built the token before, use it. | |
2136 | */ | |
2137 | ||
dba4d153 | 2138 | #ifdef USE_PURE_BISON |
864dbfa3 | 2139 | int |
dba4d153 | 2140 | Perl_yylex_r(pTHX_ YYSTYPE *lvalp, int *lcharp) |
378cc40b | 2141 | { |
20141f0e IRC |
2142 | int r; |
2143 | ||
6f202aea | 2144 | yyactlevel++; |
20141f0e IRC |
2145 | yylval_pointer[yyactlevel] = lvalp; |
2146 | yychar_pointer[yyactlevel] = lcharp; | |
b73d6f50 IRC |
2147 | if (yyactlevel >= YYMAXLEVEL) |
2148 | Perl_croak(aTHX_ "panic: YYMAXLEVEL"); | |
20141f0e | 2149 | |
dba4d153 | 2150 | r = Perl_yylex(aTHX); |
20141f0e | 2151 | |
d8ae6756 IRC |
2152 | if (yyactlevel > 0) |
2153 | yyactlevel--; | |
20141f0e IRC |
2154 | |
2155 | return r; | |
2156 | } | |
dba4d153 | 2157 | #endif |
20141f0e | 2158 | |
dba4d153 JH |
2159 | #ifdef __SC__ |
2160 | #pragma segment Perl_yylex | |
2161 | #endif | |
dba4d153 | 2162 | int |
dba4d153 | 2163 | Perl_yylex(pTHX) |
20141f0e | 2164 | { |
79072805 | 2165 | register char *s; |
378cc40b | 2166 | register char *d; |
79072805 | 2167 | register I32 tmp; |
463ee0b2 | 2168 | STRLEN len; |
161b471a NIS |
2169 | GV *gv = Nullgv; |
2170 | GV **gvp = 0; | |
aa7440fb | 2171 | bool bof = FALSE; |
a687059c | 2172 | |
02aa26ce | 2173 | /* check if there's an identifier for us to look at */ |
3280af22 | 2174 | if (PL_pending_ident) { |
02aa26ce | 2175 | /* pit holds the identifier we read and pending_ident is reset */ |
3280af22 NIS |
2176 | char pit = PL_pending_ident; |
2177 | PL_pending_ident = 0; | |
bbce6d69 | 2178 | |
607df283 SC |
2179 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
2180 | "### Tokener saw identifier '%s'\n", PL_tokenbuf); }) | |
2181 | ||
02aa26ce NT |
2182 | /* if we're in a my(), we can't allow dynamics here. |
2183 | $foo'bar has already been turned into $foo::bar, so | |
2184 | just check for colons. | |
2185 | ||
2186 | if it's a legal name, the OP is a PADANY. | |
2187 | */ | |
3280af22 | 2188 | if (PL_in_my) { |
77ca0c92 | 2189 | if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */ |
1ec3e8de GS |
2190 | if (strchr(PL_tokenbuf,':')) |
2191 | yyerror(Perl_form(aTHX_ "No package name allowed for " | |
2192 | "variable %s in \"our\"", | |
2193 | PL_tokenbuf)); | |
77ca0c92 LW |
2194 | tmp = pad_allocmy(PL_tokenbuf); |
2195 | } | |
2196 | else { | |
2197 | if (strchr(PL_tokenbuf,':')) | |
2198 | yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf)); | |
02aa26ce | 2199 | |
77ca0c92 LW |
2200 | yylval.opval = newOP(OP_PADANY, 0); |
2201 | yylval.opval->op_targ = pad_allocmy(PL_tokenbuf); | |
2202 | return PRIVATEREF; | |
2203 | } | |
bbce6d69 | 2204 | } |
2205 | ||
4e553d73 | 2206 | /* |
02aa26ce NT |
2207 | build the ops for accesses to a my() variable. |
2208 | ||
2209 | Deny my($a) or my($b) in a sort block, *if* $a or $b is | |
2210 | then used in a comparison. This catches most, but not | |
2211 | all cases. For instance, it catches | |
2212 | sort { my($a); $a <=> $b } | |
2213 | but not | |
2214 | sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; } | |
2215 | (although why you'd do that is anyone's guess). | |
2216 | */ | |
2217 | ||
3280af22 | 2218 | if (!strchr(PL_tokenbuf,':')) { |
a863c7d1 | 2219 | #ifdef USE_THREADS |
54b9620d | 2220 | /* Check for single character per-thread SVs */ |
3280af22 NIS |
2221 | if (PL_tokenbuf[0] == '$' && PL_tokenbuf[2] == '\0' |
2222 | && !isALPHA(PL_tokenbuf[1]) /* Rule out obvious non-threadsvs */ | |
2223 | && (tmp = find_threadsv(&PL_tokenbuf[1])) != NOT_IN_PAD) | |
554b3eca | 2224 | { |
2faa37cc | 2225 | yylval.opval = newOP(OP_THREADSV, 0); |
a863c7d1 MB |
2226 | yylval.opval->op_targ = tmp; |
2227 | return PRIVATEREF; | |
2228 | } | |
2229 | #endif /* USE_THREADS */ | |
3280af22 | 2230 | if ((tmp = pad_findmy(PL_tokenbuf)) != NOT_IN_PAD) { |
f472eb5c | 2231 | SV *namesv = AvARRAY(PL_comppad_name)[tmp]; |
77ca0c92 | 2232 | /* might be an "our" variable" */ |
f472eb5c | 2233 | if (SvFLAGS(namesv) & SVpad_OUR) { |
77ca0c92 | 2234 | /* build ops for a bareword */ |
f472eb5c GS |
2235 | SV *sym = newSVpv(HvNAME(GvSTASH(namesv)),0); |
2236 | sv_catpvn(sym, "::", 2); | |
2237 | sv_catpv(sym, PL_tokenbuf+1); | |
2238 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym); | |
77ca0c92 | 2239 | yylval.opval->op_private = OPpCONST_ENTERED; |
f472eb5c | 2240 | gv_fetchpv(SvPVX(sym), |
77ca0c92 | 2241 | (PL_in_eval |
f472eb5c GS |
2242 | ? (GV_ADDMULTI | GV_ADDINEVAL) |
2243 | : TRUE | |
77ca0c92 LW |
2244 | ), |
2245 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
2246 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
2247 | : SVt_PVHV)); | |
2248 | return WORD; | |
2249 | } | |
2250 | ||
02aa26ce | 2251 | /* if it's a sort block and they're naming $a or $b */ |
3280af22 NIS |
2252 | if (PL_last_lop_op == OP_SORT && |
2253 | PL_tokenbuf[0] == '$' && | |
2254 | (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b') | |
2255 | && !PL_tokenbuf[2]) | |
bbce6d69 | 2256 | { |
3280af22 NIS |
2257 | for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart; |
2258 | d < PL_bufend && *d != '\n'; | |
a863c7d1 MB |
2259 | d++) |
2260 | { | |
2261 | if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) { | |
cea2e8a9 | 2262 | Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison", |
3280af22 | 2263 | PL_tokenbuf); |
a863c7d1 | 2264 | } |
bbce6d69 | 2265 | } |
2266 | } | |
bbce6d69 | 2267 | |
a863c7d1 MB |
2268 | yylval.opval = newOP(OP_PADANY, 0); |
2269 | yylval.opval->op_targ = tmp; | |
2270 | return PRIVATEREF; | |
2271 | } | |
bbce6d69 | 2272 | } |
2273 | ||
02aa26ce NT |
2274 | /* |
2275 | Whine if they've said @foo in a doublequoted string, | |
2276 | and @foo isn't a variable we can find in the symbol | |
2277 | table. | |
2278 | */ | |
3280af22 NIS |
2279 | if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) { |
2280 | GV *gv = gv_fetchpv(PL_tokenbuf+1, FALSE, SVt_PVAV); | |
8593bda5 GS |
2281 | if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) |
2282 | && ckWARN(WARN_AMBIGUOUS)) | |
2283 | { | |
2284 | /* Downgraded from fatal to warning 20000522 mjd */ | |
2285 | Perl_warner(aTHX_ WARN_AMBIGUOUS, | |
2286 | "Possible unintended interpolation of %s in string", | |
2287 | PL_tokenbuf); | |
2288 | } | |
bbce6d69 | 2289 | } |
2290 | ||
02aa26ce | 2291 | /* build ops for a bareword */ |
3280af22 | 2292 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0)); |
bbce6d69 | 2293 | yylval.opval->op_private = OPpCONST_ENTERED; |
3280af22 NIS |
2294 | gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE, |
2295 | ((PL_tokenbuf[0] == '$') ? SVt_PV | |
2296 | : (PL_tokenbuf[0] == '@') ? SVt_PVAV | |
bbce6d69 | 2297 | : SVt_PVHV)); |
2298 | return WORD; | |
2299 | } | |
2300 | ||
02aa26ce NT |
2301 | /* no identifier pending identification */ |
2302 | ||
3280af22 | 2303 | switch (PL_lex_state) { |
79072805 LW |
2304 | #ifdef COMMENTARY |
2305 | case LEX_NORMAL: /* Some compilers will produce faster */ | |
2306 | case LEX_INTERPNORMAL: /* code if we comment these out. */ | |
2307 | break; | |
2308 | #endif | |
2309 | ||
09bef843 | 2310 | /* when we've already built the next token, just pull it out of the queue */ |
79072805 | 2311 | case LEX_KNOWNEXT: |
3280af22 NIS |
2312 | PL_nexttoke--; |
2313 | yylval = PL_nextval[PL_nexttoke]; | |
2314 | if (!PL_nexttoke) { | |
2315 | PL_lex_state = PL_lex_defer; | |
2316 | PL_expect = PL_lex_expect; | |
2317 | PL_lex_defer = LEX_NORMAL; | |
463ee0b2 | 2318 | } |
607df283 | 2319 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
4659c93f RB |
2320 | "### Next token after '%s' was known, type %"IVdf"\n", PL_bufptr, |
2321 | (IV)PL_nexttype[PL_nexttoke]); }) | |
607df283 | 2322 | |
3280af22 | 2323 | return(PL_nexttype[PL_nexttoke]); |
79072805 | 2324 | |
02aa26ce | 2325 | /* interpolated case modifiers like \L \U, including \Q and \E. |
3280af22 | 2326 | when we get here, PL_bufptr is at the \ |
02aa26ce | 2327 | */ |
79072805 LW |
2328 | case LEX_INTERPCASEMOD: |
2329 | #ifdef DEBUGGING | |
3280af22 | 2330 | if (PL_bufptr != PL_bufend && *PL_bufptr != '\\') |
cea2e8a9 | 2331 | Perl_croak(aTHX_ "panic: INTERPCASEMOD"); |
79072805 | 2332 | #endif |
02aa26ce | 2333 | /* handle \E or end of string */ |
3280af22 | 2334 | if (PL_bufptr == PL_bufend || PL_bufptr[1] == 'E') { |
a0d0e21e | 2335 | char oldmod; |
02aa26ce NT |
2336 | |
2337 | /* if at a \E */ | |
3280af22 NIS |
2338 | if (PL_lex_casemods) { |
2339 | oldmod = PL_lex_casestack[--PL_lex_casemods]; | |
2340 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
02aa26ce | 2341 | |
3280af22 NIS |
2342 | if (PL_bufptr != PL_bufend && strchr("LUQ", oldmod)) { |
2343 | PL_bufptr += 2; | |
2344 | PL_lex_state = LEX_INTERPCONCAT; | |
a0d0e21e | 2345 | } |
79072805 LW |
2346 | return ')'; |
2347 | } | |
3280af22 NIS |
2348 | if (PL_bufptr != PL_bufend) |
2349 | PL_bufptr += 2; | |
2350 | PL_lex_state = LEX_INTERPCONCAT; | |
cea2e8a9 | 2351 | return yylex(); |
79072805 LW |
2352 | } |
2353 | else { | |
607df283 SC |
2354 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
2355 | "### Saw case modifier at '%s'\n", PL_bufptr); }) | |
3280af22 | 2356 | s = PL_bufptr + 1; |
79072805 LW |
2357 | if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3)) |
2358 | tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */ | |
a0d0e21e | 2359 | if (strchr("LU", *s) && |
3280af22 | 2360 | (strchr(PL_lex_casestack, 'L') || strchr(PL_lex_casestack, 'U'))) |
a0d0e21e | 2361 | { |
3280af22 | 2362 | PL_lex_casestack[--PL_lex_casemods] = '\0'; |
a0d0e21e LW |
2363 | return ')'; |
2364 | } | |
3280af22 NIS |
2365 | if (PL_lex_casemods > 10) { |
2366 | char* newlb = Renew(PL_lex_casestack, PL_lex_casemods + 2, char); | |
2367 | if (newlb != PL_lex_casestack) { | |
a0d0e21e | 2368 | SAVEFREEPV(newlb); |
3280af22 | 2369 | PL_lex_casestack = newlb; |
a0d0e21e LW |
2370 | } |
2371 | } | |
3280af22 NIS |
2372 | PL_lex_casestack[PL_lex_casemods++] = *s; |
2373 | PL_lex_casestack[PL_lex_casemods] = '\0'; | |
2374 | PL_lex_state = LEX_INTERPCONCAT; | |
2375 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 LW |
2376 | force_next('('); |
2377 | if (*s == 'l') | |
3280af22 | 2378 | PL_nextval[PL_nexttoke].ival = OP_LCFIRST; |
79072805 | 2379 | else if (*s == 'u') |
3280af22 | 2380 | PL_nextval[PL_nexttoke].ival = OP_UCFIRST; |
79072805 | 2381 | else if (*s == 'L') |
3280af22 | 2382 | PL_nextval[PL_nexttoke].ival = OP_LC; |
79072805 | 2383 | else if (*s == 'U') |
3280af22 | 2384 | PL_nextval[PL_nexttoke].ival = OP_UC; |
a0d0e21e | 2385 | else if (*s == 'Q') |
3280af22 | 2386 | PL_nextval[PL_nexttoke].ival = OP_QUOTEMETA; |
79072805 | 2387 | else |
cea2e8a9 | 2388 | Perl_croak(aTHX_ "panic: yylex"); |
3280af22 | 2389 | PL_bufptr = s + 1; |
79072805 | 2390 | force_next(FUNC); |
3280af22 NIS |
2391 | if (PL_lex_starts) { |
2392 | s = PL_bufptr; | |
2393 | PL_lex_starts = 0; | |
79072805 LW |
2394 | Aop(OP_CONCAT); |
2395 | } | |
2396 | else | |
cea2e8a9 | 2397 | return yylex(); |
79072805 LW |
2398 | } |
2399 | ||
55497cff | 2400 | case LEX_INTERPPUSH: |
2401 | return sublex_push(); | |
2402 | ||
79072805 | 2403 | case LEX_INTERPSTART: |
3280af22 | 2404 | if (PL_bufptr == PL_bufend) |
79072805 | 2405 | return sublex_done(); |
607df283 SC |
2406 | DEBUG_T({ PerlIO_printf(Perl_debug_log, |
2407 | "### Interpolated variable at '%s'\n", PL_bufptr); }) | |
3280af22 NIS |
2408 | PL_expect = XTERM; |
2409 | PL_lex_dojoin = (*PL_bufptr == '@'); | |
2410 | PL_lex_state = LEX_INTERPNORMAL; | |
2411 | if (PL_lex_dojoin) { | |
2412 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 | 2413 | force_next(','); |
554b3eca | 2414 | #ifdef USE_THREADS |
533c011a NIS |
2415 | PL_nextval[PL_nexttoke].opval = newOP(OP_THREADSV, 0); |
2416 | PL_nextval[PL_nexttoke].opval->op_targ = find_threadsv("\""); | |
554b3eca MB |
2417 | force_next(PRIVATEREF); |
2418 | #else | |
a0d0e21e | 2419 | force_ident("\"", '$'); |
554b3eca | 2420 | #endif /* USE_THREADS */ |
3280af22 | 2421 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2422 | force_next('$'); |
3280af22 | 2423 | PL_nextval[PL_nexttoke].ival = 0; |
79072805 | 2424 | force_next('('); |
3280af22 | 2425 | PL_nextval[PL_nexttoke].ival = OP_JOIN; /* emulate join($", ...) */ |
79072805 LW |
2426 | force_next(FUNC); |
2427 | } | |
3280af22 NIS |
2428 | if (PL_lex_starts++) { |
2429 | s = PL_bufptr; | |
79072805 LW |
2430 | Aop(OP_CONCAT); |
2431 | } | |
cea2e8a9 | 2432 | return yylex(); |
79072805 LW |
2433 | |
2434 | case LEX_INTERPENDMAYBE: | |
3280af22 NIS |
2435 | if (intuit_more(PL_bufptr)) { |
2436 | PL_lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */ | |
79072805 LW |
2437 | break; |
2438 | } | |
2439 | /* FALL THROUGH */ | |
2440 | ||
2441 | case LEX_INTERPEND: | |
3280af22 NIS |
2442 | if (PL_lex_dojoin) { |
2443 | PL_lex_dojoin = FALSE; | |
2444 | PL_lex_state = LEX_INTERPCONCAT; | |
79072805 LW |
2445 | return ')'; |
2446 | } | |
43a16006 | 2447 | if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl |
25da4f38 | 2448 | && SvEVALED(PL_lex_repl)) |
43a16006 | 2449 | { |
e9fa98b2 | 2450 | if (PL_bufptr != PL_bufend) |
cea2e8a9 | 2451 | Perl_croak(aTHX_ "Bad evalled substitution pattern"); |
e9fa98b2 HS |
2452 | PL_lex_repl = Nullsv; |
2453 | } | |
79072805 LW |
2454 | /* FALLTHROUGH */ |
2455 | case LEX_INTERPCONCAT: | |
2456 | #ifdef DEBUGGING | |
3280af22 | 2457 | if (PL_lex_brackets) |
cea2e8a9 | 2458 | Perl_croak(aTHX_ "panic: INTERPCONCAT"); |
79072805 | 2459 | #endif |
3280af22 | 2460 | if (PL_bufptr == PL_bufend) |
79072805 LW |
2461 | return sublex_done(); |
2462 | ||
3280af22 NIS |
2463 | if (SvIVX(PL_linestr) == '\'') { |
2464 | SV *sv = newSVsv(PL_linestr); | |
2465 | if (!PL_lex_inpat) | |
76e3520e | 2466 | sv = tokeq(sv); |
3280af22 | 2467 | else if ( PL_hints & HINT_NEW_RE ) |
b3ac6de7 | 2468 | sv = new_constant(NULL, 0, "qr", sv, sv, "q"); |
79072805 | 2469 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
3280af22 | 2470 | s = PL_bufend; |
79072805 LW |
2471 | } |
2472 | else { | |
3280af22 | 2473 | s = scan_const(PL_bufptr); |
79072805 | 2474 | if (*s == '\\') |
3280af22 | 2475 | PL_lex_state = LEX_INTERPCASEMOD; |
79072805 | 2476 | else |
3280af22 | 2477 | PL_lex_state = LEX_INTERPSTART; |
79072805 LW |
2478 | } |
2479 | ||
3280af22 NIS |
2480 | if (s != PL_bufptr) { |
2481 | PL_nextval[PL_nexttoke] = yylval; | |
2482 | PL_expect = XTERM; | |
79072805 | 2483 | force_next(THING); |
3280af22 | 2484 | if (PL_lex_starts++) |
79072805 LW |
2485 | Aop(OP_CONCAT); |
2486 | else { | |
3280af22 | 2487 | PL_bufptr = s; |
cea2e8a9 | 2488 | return yylex(); |
79072805 LW |
2489 | } |
2490 | } | |
2491 | ||
cea2e8a9 | 2492 | return yylex(); |
a0d0e21e | 2493 | case LEX_FORMLINE: |
3280af22 NIS |
2494 | PL_lex_state = LEX_NORMAL; |
2495 | s = scan_formline(PL_bufptr); | |
2496 | if (!PL_lex_formbrack) | |
a0d0e21e LW |
2497 | goto rightbracket; |
2498 | OPERATOR(';'); | |
79072805 LW |
2499 | } |
2500 | ||
3280af22 NIS |
2501 | s = PL_bufptr; |
2502 | PL_oldoldbufptr = PL_oldbufptr; | |
2503 | PL_oldbufptr = s; | |
607df283 | 2504 | DEBUG_T( { |
bf49b057 GS |
2505 | PerlIO_printf(Perl_debug_log, "### Tokener expecting %s at %s\n", |
2506 | exp_name[PL_expect], s); | |
79072805 | 2507 | } ) |
463ee0b2 LW |
2508 | |
2509 | retry: | |
378cc40b LW |
2510 | switch (*s) { |
2511 | default: | |
7e2040f0 | 2512 | if (isIDFIRST_lazy_if(s,UTF)) |
834a4ddd | 2513 | goto keylookup; |
cea2e8a9 | 2514 | Perl_croak(aTHX_ "Unrecognized character \\x%02X", *s & 255); |
e929a76b LW |
2515 | case 4: |
2516 | case 26: | |
2517 | goto fake_eof; /* emulate EOF on ^D or ^Z */ | |
378cc40b | 2518 | case 0: |
3280af22 NIS |
2519 | if (!PL_rsfp) { |
2520 | PL_last_uni = 0; | |
2521 | PL_last_lop = 0; | |
2522 | if (PL_lex_brackets) | |
d98d5fff | 2523 | yyerror("Missing right curly or square bracket"); |
4e553d73 | 2524 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 SC |
2525 | "### Tokener got EOF\n"); |
2526 | } ) | |
79072805 | 2527 | TOKEN(0); |
463ee0b2 | 2528 | } |
3280af22 | 2529 | if (s++ < PL_bufend) |
a687059c | 2530 | goto retry; /* ignore stray nulls */ |
3280af22 NIS |
2531 | PL_last_uni = 0; |
2532 | PL_last_lop = 0; | |
2533 | if (!PL_in_eval && !PL_preambled) { | |
2534 | PL_preambled = TRUE; | |
2535 | sv_setpv(PL_linestr,incl_perldb()); | |
2536 | if (SvCUR(PL_linestr)) | |
2537 | sv_catpv(PL_linestr,";"); | |
2538 | if (PL_preambleav){ | |
2539 | while(AvFILLp(PL_preambleav) >= 0) { | |
2540 | SV *tmpsv = av_shift(PL_preambleav); | |
2541 | sv_catsv(PL_linestr, tmpsv); | |
2542 | sv_catpv(PL_linestr, ";"); | |
91b7def8 | 2543 | sv_free(tmpsv); |
2544 | } | |
3280af22 NIS |
2545 | sv_free((SV*)PL_preambleav); |
2546 | PL_preambleav = NULL; | |
91b7def8 | 2547 | } |
3280af22 NIS |
2548 | if (PL_minus_n || PL_minus_p) { |
2549 | sv_catpv(PL_linestr, "LINE: while (<>) {"); | |
2550 | if (PL_minus_l) | |
2551 | sv_catpv(PL_linestr,"chomp;"); | |
2552 | if (PL_minus_a) { | |
8fd239a7 CS |
2553 | GV* gv = gv_fetchpv("::F", TRUE, SVt_PVAV); |
2554 | if (gv) | |
2555 | GvIMPORTED_AV_on(gv); | |
3280af22 NIS |
2556 | if (PL_minus_F) { |
2557 | if (strchr("/'\"", *PL_splitstr) | |
2558 | && strchr(PL_splitstr + 1, *PL_splitstr)) | |
cea2e8a9 | 2559 | Perl_sv_catpvf(aTHX_ PL_linestr, "@F=split(%s);", PL_splitstr); |
54310121 | 2560 | else { |
2561 | char delim; | |
2562 | s = "'~#\200\1'"; /* surely one char is unused...*/ | |
3280af22 | 2563 | while (s[1] && strchr(PL_splitstr, *s)) s++; |
54310121 | 2564 | delim = *s; |
cea2e8a9 | 2565 | Perl_sv_catpvf(aTHX_ PL_linestr, "@F=split(%s%c", |
46fc3d4c | 2566 | "q" + (delim == '\''), delim); |
3280af22 | 2567 | for (s = PL_splitstr; *s; s++) { |
54310121 | 2568 | if (*s == '\\') |
3280af22 NIS |
2569 | sv_catpvn(PL_linestr, "\\", 1); |
2570 | sv_catpvn(PL_linestr, s, 1); | |
54310121 | 2571 | } |
cea2e8a9 | 2572 | Perl_sv_catpvf(aTHX_ PL_linestr, "%c);", delim); |
54310121 | 2573 | } |
2304df62 AD |
2574 | } |
2575 | else | |
3280af22 | 2576 | sv_catpv(PL_linestr,"@F=split(' ');"); |
2304df62 | 2577 | } |
79072805 | 2578 | } |
3280af22 NIS |
2579 | sv_catpv(PL_linestr, "\n"); |
2580 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
2581 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2582 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2583 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
a0d0e21e LW |
2584 | SV *sv = NEWSV(85,0); |
2585 | ||
2586 | sv_upgrade(sv, SVt_PVMG); | |
3280af22 | 2587 | sv_setsv(sv,PL_linestr); |
57843af0 | 2588 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a0d0e21e | 2589 | } |
79072805 | 2590 | goto retry; |
a687059c | 2591 | } |
e929a76b | 2592 | do { |
aa7440fb | 2593 | bof = PL_rsfp ? TRUE : FALSE; |
7e28d3af JH |
2594 | if ((s = filter_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { |
2595 | fake_eof: | |
2596 | if (PL_rsfp) { | |
2597 | if (PL_preprocess && !PL_in_eval) | |
2598 | (void)PerlProc_pclose(PL_rsfp); | |
2599 | else if ((PerlIO *)PL_rsfp == PerlIO_stdin()) | |
2600 | PerlIO_clearerr(PL_rsfp); | |
2601 | else | |
2602 | (void)PerlIO_close(PL_rsfp); | |
2603 | PL_rsfp = Nullfp; | |
2604 | PL_doextract = FALSE; | |
2605 | } | |
2606 | if (!PL_in_eval && (PL_minus_n || PL_minus_p)) { | |
2607 | sv_setpv(PL_linestr,PL_minus_p ? ";}continue{print" : ""); | |
2608 | sv_catpv(PL_linestr,";}"); | |
2609 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
2610 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2611 | PL_last_lop = PL_last_uni = Nullch; |
7e28d3af JH |
2612 | PL_minus_n = PL_minus_p = 0; |
2613 | goto retry; | |
2614 | } | |
2615 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
207e3d1a | 2616 | PL_last_lop = PL_last_uni = Nullch; |
7e28d3af JH |
2617 | sv_setpv(PL_linestr,""); |
2618 | TOKEN(';'); /* not infinite loop because rsfp is NULL now */ | |
2619 | } | |
2620 | /* if it looks like the start of a BOM, check if it in fact is */ | |
2621 | else if (bof && (!*s || *(U8*)s == 0xEF || *(U8*)s >= 0xFE)) { | |
226017aa | 2622 | #ifdef PERLIO_IS_STDIO |
e3f494f1 JH |
2623 | # ifdef __GNU_LIBRARY__ |
2624 | # if __GNU_LIBRARY__ == 1 /* Linux glibc5 */ | |
226017aa DD |
2625 | # define FTELL_FOR_PIPE_IS_BROKEN |
2626 | # endif | |
e3f494f1 JH |
2627 | # else |
2628 | # ifdef __GLIBC__ | |
2629 | # if __GLIBC__ == 1 /* maybe some glibc5 release had it like this? */ | |
2630 | # define FTELL_FOR_PIPE_IS_BROKEN | |
2631 | # endif | |
2632 | # endif | |
226017aa DD |
2633 | # endif |
2634 | #endif | |
2635 | #ifdef FTELL_FOR_PIPE_IS_BROKEN | |
2636 | /* This loses the possibility to detect the bof | |
2637 | * situation on perl -P when the libc5 is being used. | |
2638 | * Workaround? Maybe attach some extra state to PL_rsfp? | |
2639 | */ | |
2640 | if (!PL_preprocess) | |
7e28d3af | 2641 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 2642 | #else |
7e28d3af | 2643 | bof = PerlIO_tell(PL_rsfp) == SvCUR(PL_linestr); |
226017aa | 2644 | #endif |
7e28d3af | 2645 | if (bof) { |
3280af22 | 2646 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
7e28d3af | 2647 | s = swallow_bom((U8*)s); |
e929a76b | 2648 | } |
378cc40b | 2649 | } |
3280af22 | 2650 | if (PL_doextract) { |
a0d0e21e | 2651 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) |
3280af22 | 2652 | PL_doextract = FALSE; |
a0d0e21e LW |
2653 | |
2654 | /* Incest with pod. */ | |
2655 | if (*s == '=' && strnEQ(s, "=cut", 4)) { | |
3280af22 NIS |
2656 | sv_setpv(PL_linestr, ""); |
2657 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
2658 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2659 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2660 | PL_doextract = FALSE; |
a0d0e21e | 2661 | } |
4e553d73 | 2662 | } |
463ee0b2 | 2663 | incline(s); |
3280af22 NIS |
2664 | } while (PL_doextract); |
2665 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = s; | |
2666 | if (PERLDB_LINE && PL_curstash != PL_debstash) { | |
79072805 | 2667 | SV *sv = NEWSV(85,0); |
a687059c | 2668 | |
93a17b20 | 2669 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 2670 | sv_setsv(sv,PL_linestr); |
57843af0 | 2671 | av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv); |
a687059c | 2672 | } |
3280af22 | 2673 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 2674 | PL_last_lop = PL_last_uni = Nullch; |
57843af0 | 2675 | if (CopLINE(PL_curcop) == 1) { |
3280af22 | 2676 | while (s < PL_bufend && isSPACE(*s)) |
79072805 | 2677 | s++; |
a0d0e21e | 2678 | if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */ |
79072805 | 2679 | s++; |
44a8e56a | 2680 | d = Nullch; |
3280af22 | 2681 | if (!PL_in_eval) { |
44a8e56a | 2682 | if (*s == '#' && *(s+1) == '!') |
2683 | d = s + 2; | |
2684 | #ifdef ALTERNATE_SHEBANG | |
2685 | else { | |
2686 | static char as[] = ALTERNATE_SHEBANG; | |
2687 | if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1)) | |
2688 | d = s + (sizeof(as) - 1); | |
2689 | } | |
2690 | #endif /* ALTERNATE_SHEBANG */ | |
2691 | } | |
2692 | if (d) { | |
b8378b72 | 2693 | char *ipath; |
774d564b | 2694 | char *ipathend; |
b8378b72 | 2695 | |
774d564b | 2696 | while (isSPACE(*d)) |
b8378b72 CS |
2697 | d++; |
2698 | ipath = d; | |
774d564b | 2699 | while (*d && !isSPACE(*d)) |
2700 | d++; | |
2701 | ipathend = d; | |
2702 | ||
2703 | #ifdef ARG_ZERO_IS_SCRIPT | |
2704 | if (ipathend > ipath) { | |
2705 | /* | |
2706 | * HP-UX (at least) sets argv[0] to the script name, | |
2707 | * which makes $^X incorrect. And Digital UNIX and Linux, | |
2708 | * at least, set argv[0] to the basename of the Perl | |
2709 | * interpreter. So, having found "#!", we'll set it right. | |
2710 | */ | |
2711 | SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); | |
2712 | assert(SvPOK(x) || SvGMAGICAL(x)); | |
cc49e20b | 2713 | if (sv_eq(x, CopFILESV(PL_curcop))) { |
774d564b | 2714 | sv_setpvn(x, ipath, ipathend - ipath); |
9607fc9c | 2715 | SvSETMAGIC(x); |
2716 | } | |
774d564b | 2717 | TAINT_NOT; /* $^X is always tainted, but that's OK */ |
8ebc5c01 | 2718 | } |
774d564b | 2719 | #endif /* ARG_ZERO_IS_SCRIPT */ |
b8378b72 CS |
2720 | |
2721 | /* | |
2722 | * Look for options. | |
2723 | */ | |
748a9306 | 2724 | d = instr(s,"perl -"); |
84e30d1a | 2725 | if (!d) { |
748a9306 | 2726 | d = instr(s,"perl"); |
84e30d1a GS |
2727 | #if defined(DOSISH) |
2728 | /* avoid getting into infinite loops when shebang | |
2729 | * line contains "Perl" rather than "perl" */ | |
2730 | if (!d) { | |
2731 | for (d = ipathend-4; d >= ipath; --d) { | |
2732 | if ((*d == 'p' || *d == 'P') | |
2733 | && !ibcmp(d, "perl", 4)) | |
2734 | { | |
2735 | break; | |
2736 | } | |
2737 | } | |
2738 | if (d < ipath) | |
2739 | d = Nullch; | |
2740 | } | |
2741 | #endif | |
2742 | } | |
44a8e56a | 2743 | #ifdef ALTERNATE_SHEBANG |
2744 | /* | |
2745 | * If the ALTERNATE_SHEBANG on this system starts with a | |
2746 | * character that can be part of a Perl expression, then if | |
2747 | * we see it but not "perl", we're probably looking at the | |
2748 | * start of Perl code, not a request to hand off to some | |
2749 | * other interpreter. Similarly, if "perl" is there, but | |
2750 | * not in the first 'word' of the line, we assume the line | |
2751 | * contains the start of the Perl program. | |
44a8e56a | 2752 | */ |
2753 | if (d && *s != '#') { | |
774d564b | 2754 | char *c = ipath; |
44a8e56a | 2755 | while (*c && !strchr("; \t\r\n\f\v#", *c)) |
2756 | c++; | |
2757 | if (c < d) | |
2758 | d = Nullch; /* "perl" not in first word; ignore */ | |
2759 | else | |
2760 | *s = '#'; /* Don't try to parse shebang line */ | |
2761 | } | |
774d564b | 2762 | #endif /* ALTERNATE_SHEBANG */ |
bf4acbe4 | 2763 | #ifndef MACOS_TRADITIONAL |
748a9306 | 2764 | if (!d && |
44a8e56a | 2765 | *s == '#' && |
774d564b | 2766 | ipathend > ipath && |
3280af22 | 2767 | !PL_minus_c && |
748a9306 | 2768 | !instr(s,"indir") && |
3280af22 | 2769 | instr(PL_origargv[0],"perl")) |
748a9306 | 2770 | { |
9f68db38 | 2771 | char **newargv; |
9f68db38 | 2772 | |
774d564b | 2773 | *ipathend = '\0'; |
2774 | s = ipathend + 1; | |
3280af22 | 2775 | while (s < PL_bufend && isSPACE(*s)) |
9f68db38 | 2776 | s++; |
3280af22 NIS |
2777 | if (s < PL_bufend) { |
2778 | Newz(899,newargv,PL_origargc+3,char*); | |
9f68db38 | 2779 | newargv[1] = s; |
3280af22 | 2780 | while (s < PL_bufend && !isSPACE(*s)) |
9f68db38 LW |
2781 | s++; |
2782 | *s = '\0'; | |
3280af22 | 2783 | Copy(PL_origargv+1, newargv+2, PL_origargc+1, char*); |
9f68db38 LW |
2784 | } |
2785 | else | |
3280af22 | 2786 | newargv = PL_origargv; |
774d564b | 2787 | newargv[0] = ipath; |
b4748376 | 2788 | PerlProc_execv(ipath, EXEC_ARGV_CAST(newargv)); |
cea2e8a9 | 2789 | Perl_croak(aTHX_ "Can't exec %s", ipath); |
9f68db38 | 2790 | } |
bf4acbe4 | 2791 | #endif |
748a9306 | 2792 | if (d) { |
3280af22 NIS |
2793 | U32 oldpdb = PL_perldb; |
2794 | bool oldn = PL_minus_n; | |
2795 | bool oldp = PL_minus_p; | |
748a9306 LW |
2796 | |
2797 | while (*d && !isSPACE(*d)) d++; | |
bf4acbe4 | 2798 | while (SPACE_OR_TAB(*d)) d++; |
748a9306 LW |
2799 | |
2800 | if (*d++ == '-') { | |
8cc95fdb | 2801 | do { |
2802 | if (*d == 'M' || *d == 'm') { | |
2803 | char *m = d; | |
2804 | while (*d && !isSPACE(*d)) d++; | |
cea2e8a9 | 2805 | Perl_croak(aTHX_ "Too late for \"-%.*s\" option", |
8cc95fdb | 2806 | (int)(d - m), m); |
2807 | } | |
2808 | d = moreswitches(d); | |
2809 | } while (d); | |
155aba94 GS |
2810 | if ((PERLDB_LINE && !oldpdb) || |
2811 | ((PL_minus_n || PL_minus_p) && !(oldn || oldp))) | |
b084f20b | 2812 | /* if we have already added "LINE: while (<>) {", |
2813 | we must not do it again */ | |
748a9306 | 2814 | { |
3280af22 NIS |
2815 | sv_setpv(PL_linestr, ""); |
2816 | PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr); | |
2817 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 2818 | PL_last_lop = PL_last_uni = Nullch; |
3280af22 | 2819 | PL_preambled = FALSE; |
84902520 | 2820 | if (PERLDB_LINE) |
3280af22 | 2821 | (void)gv_fetchfile(PL_origfilename); |
748a9306 LW |
2822 | goto retry; |
2823 | } | |
a0d0e21e | 2824 | } |
79072805 | 2825 | } |
9f68db38 | 2826 | } |
79072805 | 2827 | } |
3280af22 NIS |
2828 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
2829 | PL_bufptr = s; | |
2830 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 2831 | return yylex(); |
ae986130 | 2832 | } |
378cc40b | 2833 | goto retry; |
4fdae800 | 2834 | case '\r': |
6a27c188 | 2835 | #ifdef PERL_STRICT_CR |
cea2e8a9 | 2836 | Perl_warn(aTHX_ "Illegal character \\%03o (carriage return)", '\r'); |
4e553d73 | 2837 | Perl_croak(aTHX_ |
cc507455 | 2838 | "\t(Maybe you didn't strip carriage returns after a network transfer?)\n"); |
a868473f | 2839 | #endif |
4fdae800 | 2840 | case ' ': case '\t': case '\f': case 013: |
bf4acbe4 GS |
2841 | #ifdef MACOS_TRADITIONAL |
2842 | case '\312': | |
2843 | #endif | |
378cc40b LW |
2844 | s++; |
2845 | goto retry; | |
378cc40b | 2846 | case '#': |
e929a76b | 2847 | case '\n': |
3280af22 | 2848 | if (PL_lex_state != LEX_NORMAL || (PL_in_eval && !PL_rsfp)) { |
df0deb90 GS |
2849 | if (*s == '#' && s == PL_linestart && PL_in_eval && !PL_rsfp) { |
2850 | /* handle eval qq[#line 1 "foo"\n ...] */ | |
2851 | CopLINE_dec(PL_curcop); | |
2852 | incline(s); | |
2853 | } | |
3280af22 | 2854 | d = PL_bufend; |
a687059c | 2855 | while (s < d && *s != '\n') |
378cc40b | 2856 | s++; |
0f85fab0 | 2857 | if (s < d) |
378cc40b | 2858 | s++; |
463ee0b2 | 2859 | incline(s); |
3280af22 NIS |
2860 | if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) { |
2861 | PL_bufptr = s; | |
2862 | PL_lex_state = LEX_FORMLINE; | |
cea2e8a9 | 2863 | return yylex(); |
a687059c | 2864 | } |
378cc40b | 2865 | } |
a687059c | 2866 | else { |
378cc40b | 2867 | *s = '\0'; |
3280af22 | 2868 | PL_bufend = s; |
a687059c | 2869 | } |
378cc40b LW |
2870 | goto retry; |
2871 | case '-': | |
79072805 | 2872 | if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) { |
e5edeb50 JH |
2873 | I32 ftst = 0; |
2874 | ||
378cc40b | 2875 | s++; |
3280af22 | 2876 | PL_bufptr = s; |
748a9306 LW |
2877 | tmp = *s++; |
2878 | ||
bf4acbe4 | 2879 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 LW |
2880 | s++; |
2881 | ||
2882 | if (strnEQ(s,"=>",2)) { | |
3280af22 | 2883 | s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE); |
4e553d73 | 2884 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 SC |
2885 | "### Saw unary minus before =>, forcing word '%s'\n", s); |
2886 | } ) | |
748a9306 LW |
2887 | OPERATOR('-'); /* unary minus */ |
2888 | } | |
3280af22 | 2889 | PL_last_uni = PL_oldbufptr; |
748a9306 | 2890 | switch (tmp) { |
e5edeb50 JH |
2891 | case 'r': ftst = OP_FTEREAD; break; |
2892 | case 'w': ftst = OP_FTEWRITE; break; | |
2893 | case 'x': ftst = OP_FTEEXEC; break; | |
2894 | case 'o': ftst = OP_FTEOWNED; break; | |
2895 | case 'R': ftst = OP_FTRREAD; break; | |
2896 | case 'W': ftst = OP_FTRWRITE; break; | |
2897 | case 'X': ftst = OP_FTREXEC; break; | |
2898 | case 'O': ftst = OP_FTROWNED; break; | |
2899 | case 'e': ftst = OP_FTIS; break; | |
2900 | case 'z': ftst = OP_FTZERO; break; | |
2901 | case 's': ftst = OP_FTSIZE; break; | |
2902 | case 'f': ftst = OP_FTFILE; break; | |
2903 | case 'd': ftst = OP_FTDIR; break; | |
2904 | case 'l': ftst = OP_FTLINK; break; | |
2905 | case 'p': ftst = OP_FTPIPE; break; | |
2906 | case 'S': ftst = OP_FTSOCK; break; | |
2907 | case 'u': ftst = OP_FTSUID; break; | |
2908 | case 'g': ftst = OP_FTSGID; break; | |
2909 | case 'k': ftst = OP_FTSVTX; break; | |
2910 | case 'b': ftst = OP_FTBLK; break; | |
2911 | case 'c': ftst = OP_FTCHR; break; | |
2912 | case 't': ftst = OP_FTTTY; break; | |
2913 | case 'T': ftst = OP_FTTEXT; break; | |
2914 | case 'B': ftst = OP_FTBINARY; break; | |
2915 | case 'M': case 'A': case 'C': | |
2916 | gv_fetchpv("\024",TRUE, SVt_PV); | |
2917 | switch (tmp) { | |
2918 | case 'M': ftst = OP_FTMTIME; break; | |
2919 | case 'A': ftst = OP_FTATIME; break; | |
2920 | case 'C': ftst = OP_FTCTIME; break; | |
2921 | default: break; | |
2922 | } | |
2923 | break; | |
378cc40b | 2924 | default: |
378cc40b LW |
2925 | break; |
2926 | } | |
e5edeb50 JH |
2927 | if (ftst) { |
2928 | PL_last_lop_op = ftst; | |
4e553d73 | 2929 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
0844c848 | 2930 | "### Saw file test %c\n", (int)ftst); |
e5edeb50 | 2931 | } ) |
e5edeb50 JH |
2932 | FTST(ftst); |
2933 | } | |
2934 | else { | |
2935 | /* Assume it was a minus followed by a one-letter named | |
2936 | * subroutine call (or a -bareword), then. */ | |
95c31fe3 | 2937 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
0844c848 RB |
2938 | "### %c looked like a file test but was not\n", |
2939 | (int)ftst); | |
95c31fe3 | 2940 | } ) |
e5edeb50 JH |
2941 | s -= 2; |
2942 | } | |
378cc40b | 2943 | } |
a687059c LW |
2944 | tmp = *s++; |
2945 | if (*s == tmp) { | |
2946 | s++; | |
3280af22 | 2947 | if (PL_expect == XOPERATOR) |
79072805 LW |
2948 | TERM(POSTDEC); |
2949 | else | |
2950 | OPERATOR(PREDEC); | |
2951 | } | |
2952 | else if (*s == '>') { | |
2953 | s++; | |
2954 | s = skipspace(s); | |
7e2040f0 | 2955 | if (isIDFIRST_lazy_if(s,UTF)) { |
a0d0e21e | 2956 | s = force_word(s,METHOD,FALSE,TRUE,FALSE); |
463ee0b2 | 2957 | TOKEN(ARROW); |
79072805 | 2958 | } |
748a9306 LW |
2959 | else if (*s == '$') |
2960 | OPERATOR(ARROW); | |
463ee0b2 | 2961 | else |
748a9306 | 2962 | TERM(ARROW); |
a687059c | 2963 | } |
3280af22 | 2964 | if (PL_expect == XOPERATOR) |
79072805 LW |
2965 | Aop(OP_SUBTRACT); |
2966 | else { | |
3280af22 | 2967 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) |
2f3197b3 | 2968 | check_uni(); |
79072805 | 2969 | OPERATOR('-'); /* unary minus */ |
2f3197b3 | 2970 | } |
79072805 | 2971 | |
378cc40b | 2972 | case '+': |
a687059c LW |
2973 | tmp = *s++; |
2974 | if (*s == tmp) { | |
378cc40b | 2975 | s++; |
3280af22 | 2976 | if (PL_expect == XOPERATOR) |
79072805 LW |
2977 | TERM(POSTINC); |
2978 | else | |
2979 | OPERATOR(PREINC); | |
378cc40b | 2980 | } |
3280af22 | 2981 | if (PL_expect == XOPERATOR) |
79072805 LW |
2982 | Aop(OP_ADD); |
2983 | else { | |
3280af22 | 2984 | if (isSPACE(*s) || !isSPACE(*PL_bufptr)) |
2f3197b3 | 2985 | check_uni(); |
a687059c | 2986 | OPERATOR('+'); |
2f3197b3 | 2987 | } |
a687059c | 2988 | |
378cc40b | 2989 | case '*': |
3280af22 NIS |
2990 | if (PL_expect != XOPERATOR) { |
2991 | s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
2992 | PL_expect = XOPERATOR; | |
2993 | force_ident(PL_tokenbuf, '*'); | |
2994 | if (!*PL_tokenbuf) | |
a0d0e21e | 2995 | PREREF('*'); |
79072805 | 2996 | TERM('*'); |
a687059c | 2997 | } |
79072805 LW |
2998 | s++; |
2999 | if (*s == '*') { | |
a687059c | 3000 | s++; |
79072805 | 3001 | PWop(OP_POW); |
a687059c | 3002 | } |
79072805 LW |
3003 | Mop(OP_MULTIPLY); |
3004 | ||
378cc40b | 3005 | case '%': |
3280af22 | 3006 | if (PL_expect == XOPERATOR) { |
bbce6d69 | 3007 | ++s; |
3008 | Mop(OP_MODULO); | |
a687059c | 3009 | } |
3280af22 NIS |
3010 | PL_tokenbuf[0] = '%'; |
3011 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, TRUE); | |
3012 | if (!PL_tokenbuf[1]) { | |
3013 | if (s == PL_bufend) | |
bbce6d69 | 3014 | yyerror("Final % should be \\% or %name"); |
3015 | PREREF('%'); | |
a687059c | 3016 | } |
3280af22 | 3017 | PL_pending_ident = '%'; |
bbce6d69 | 3018 | TERM('%'); |
a687059c | 3019 | |
378cc40b | 3020 | case '^': |
79072805 | 3021 | s++; |
a0d0e21e | 3022 | BOop(OP_BIT_XOR); |
79072805 | 3023 | case '[': |
3280af22 | 3024 | PL_lex_brackets++; |
79072805 | 3025 | /* FALL THROUGH */ |
378cc40b | 3026 | case '~': |
378cc40b | 3027 | case ',': |
378cc40b LW |
3028 | tmp = *s++; |
3029 | OPERATOR(tmp); | |
a0d0e21e LW |
3030 | case ':': |
3031 | if (s[1] == ':') { | |
3032 | len = 0; | |
3033 | goto just_a_word; | |
3034 | } | |
3035 | s++; | |
09bef843 SB |
3036 | switch (PL_expect) { |
3037 | OP *attrs; | |
3038 | case XOPERATOR: | |
3039 | if (!PL_in_my || PL_lex_state != LEX_NORMAL) | |
3040 | break; | |
3041 | PL_bufptr = s; /* update in case we back off */ | |
3042 | goto grabattrs; | |
3043 | case XATTRBLOCK: | |
3044 | PL_expect = XBLOCK; | |
3045 | goto grabattrs; | |
3046 | case XATTRTERM: | |
3047 | PL_expect = XTERMBLOCK; | |
3048 | grabattrs: | |
3049 | s = skipspace(s); | |
3050 | attrs = Nullop; | |
7e2040f0 | 3051 | while (isIDFIRST_lazy_if(s,UTF)) { |
09bef843 | 3052 | d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
f9829d6b GS |
3053 | if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) { |
3054 | if (tmp < 0) tmp = -tmp; | |
3055 | switch (tmp) { | |
3056 | case KEY_or: | |
3057 | case KEY_and: | |
3058 | case KEY_for: | |
3059 | case KEY_unless: | |
3060 | case KEY_if: | |
3061 | case KEY_while: | |
3062 | case KEY_until: | |
3063 | goto got_attrs; | |
3064 | default: | |
3065 | break; | |
3066 | } | |
3067 | } | |
09bef843 SB |
3068 | if (*d == '(') { |
3069 | d = scan_str(d,TRUE,TRUE); | |
3070 | if (!d) { | |
09bef843 SB |
3071 | /* MUST advance bufptr here to avoid bogus |
3072 | "at end of line" context messages from yyerror(). | |
3073 | */ | |
3074 | PL_bufptr = s + len; | |
3075 | yyerror("Unterminated attribute parameter in attribute list"); | |
3076 | if (attrs) | |
3077 | op_free(attrs); | |
3078 | return 0; /* EOF indicator */ | |
3079 | } | |
3080 | } | |
3081 | if (PL_lex_stuff) { | |
3082 | SV *sv = newSVpvn(s, len); | |
3083 | sv_catsv(sv, PL_lex_stuff); | |
3084 | attrs = append_elem(OP_LIST, attrs, | |
3085 | newSVOP(OP_CONST, 0, sv)); | |
3086 | SvREFCNT_dec(PL_lex_stuff); | |
3087 | PL_lex_stuff = Nullsv; | |
3088 | } | |
3089 | else { | |
78f9721b SM |
3090 | if (!PL_in_my && len == 6 && strnEQ(s, "lvalue", len)) |
3091 | CvLVALUE_on(PL_compcv); | |
3092 | else if (!PL_in_my && len == 6 && strnEQ(s, "locked", len)) | |
3093 | CvLOCKED_on(PL_compcv); | |
3094 | else if (!PL_in_my && len == 6 && strnEQ(s, "method", len)) | |
3095 | CvMETHOD_on(PL_compcv); | |
87ecf892 DM |
3096 | #ifdef USE_ITHREADS |
3097 | else if (PL_in_my == KEY_our && len == 6 && strnEQ(s, "shared", len)) | |
3098 | GvSHARED_on(cGVOPx_gv(yylval.opval)); | |
3099 | #endif | |
78f9721b SM |
3100 | /* After we've set the flags, it could be argued that |
3101 | we don't need to do the attributes.pm-based setting | |
3102 | process, and shouldn't bother appending recognized | |
3103 | flags. To experiment with that, uncomment the | |
3104 | following "else": */ | |
0256094b | 3105 | else |
78f9721b SM |
3106 | attrs = append_elem(OP_LIST, attrs, |
3107 | newSVOP(OP_CONST, 0, | |
3108 | newSVpvn(s, len))); | |
09bef843 SB |
3109 | } |
3110 | s = skipspace(d); | |
0120eecf | 3111 | if (*s == ':' && s[1] != ':') |
09bef843 | 3112 | s = skipspace(s+1); |
0120eecf GS |
3113 | else if (s == d) |
3114 | break; /* require real whitespace or :'s */ | |
09bef843 | 3115 | } |
f9829d6b GS |
3116 | tmp = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */ |
3117 | if (*s != ';' && *s != tmp && (tmp != '=' || *s != ')')) { | |
09bef843 SB |
3118 | char q = ((*s == '\'') ? '"' : '\''); |
3119 | /* If here for an expression, and parsed no attrs, back off. */ | |
3120 | if (tmp == '=' && !attrs) { | |
3121 | s = PL_bufptr; | |
3122 | break; | |
3123 | } | |
3124 | /* MUST advance bufptr here to avoid bogus "at end of line" | |
3125 | context messages from yyerror(). | |
3126 | */ | |
3127 | PL_bufptr = s; | |
3128 | if (!*s) | |
3129 | yyerror("Unterminated attribute list"); | |
3130 | else | |
3131 | yyerror(Perl_form(aTHX_ "Invalid separator character %c%c%c in attribute list", | |
3132 | q, *s, q)); | |
3133 | if (attrs) | |
3134 | op_free(attrs); | |
3135 | OPERATOR(':'); | |
3136 | } | |
f9829d6b | 3137 | got_attrs: |
09bef843 SB |
3138 | if (attrs) { |
3139 | PL_nextval[PL_nexttoke].opval = attrs; | |
3140 | force_next(THING); | |
3141 | } | |
3142 | TOKEN(COLONATTR); | |
3143 | } | |
a0d0e21e | 3144 | OPERATOR(':'); |
8990e307 LW |
3145 | case '(': |
3146 | s++; | |
3280af22 NIS |
3147 | if (PL_last_lop == PL_oldoldbufptr || PL_last_uni == PL_oldoldbufptr) |
3148 | PL_oldbufptr = PL_oldoldbufptr; /* allow print(STDOUT 123) */ | |
a0d0e21e | 3149 | else |
3280af22 | 3150 | PL_expect = XTERM; |
a0d0e21e | 3151 | TOKEN('('); |
378cc40b | 3152 | case ';': |
f4dd75d9 | 3153 | CLINE; |
378cc40b LW |
3154 | tmp = *s++; |
3155 | OPERATOR(tmp); | |
3156 | case ')': | |
378cc40b | 3157 | tmp = *s++; |
16d20bd9 AD |
3158 | s = skipspace(s); |
3159 | if (*s == '{') | |
3160 | PREBLOCK(tmp); | |
378cc40b | 3161 | TERM(tmp); |
79072805 LW |
3162 | case ']': |
3163 | s++; | |
3280af22 | 3164 | if (PL_lex_brackets <= 0) |
d98d5fff | 3165 | yyerror("Unmatched right square bracket"); |
463ee0b2 | 3166 | else |
3280af22 NIS |
3167 | --PL_lex_brackets; |
3168 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3169 | if (PL_lex_brackets == 0) { | |
a0d0e21e | 3170 | if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>')) |
3280af22 | 3171 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3172 | } |
3173 | } | |
4633a7c4 | 3174 | TERM(']'); |
79072805 LW |
3175 | case '{': |
3176 | leftbracket: | |
79072805 | 3177 | s++; |
3280af22 NIS |
3178 | if (PL_lex_brackets > 100) { |
3179 | char* newlb = Renew(PL_lex_brackstack, PL_lex_brackets + 1, char); | |
3180 | if (newlb != PL_lex_brackstack) { | |
8990e307 | 3181 | SAVEFREEPV(newlb); |
3280af22 | 3182 | PL_lex_brackstack = newlb; |
8990e307 LW |
3183 | } |
3184 | } | |
3280af22 | 3185 | switch (PL_expect) { |
a0d0e21e | 3186 | case XTERM: |
3280af22 | 3187 | if (PL_lex_formbrack) { |
a0d0e21e LW |
3188 | s--; |
3189 | PRETERMBLOCK(DO); | |
3190 | } | |
3280af22 NIS |
3191 | if (PL_oldoldbufptr == PL_last_lop) |
3192 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3193 | else |
3280af22 | 3194 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
79072805 | 3195 | OPERATOR(HASHBRACK); |
a0d0e21e | 3196 | case XOPERATOR: |
bf4acbe4 | 3197 | while (s < PL_bufend && SPACE_OR_TAB(*s)) |
748a9306 | 3198 | s++; |
44a8e56a | 3199 | d = s; |
3280af22 NIS |
3200 | PL_tokenbuf[0] = '\0'; |
3201 | if (d < PL_bufend && *d == '-') { | |
3202 | PL_tokenbuf[0] = '-'; | |
44a8e56a | 3203 | d++; |
bf4acbe4 | 3204 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
44a8e56a | 3205 | d++; |
3206 | } | |
7e2040f0 | 3207 | if (d < PL_bufend && isIDFIRST_lazy_if(d,UTF)) { |
3280af22 | 3208 | d = scan_word(d, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, |
8903cb82 | 3209 | FALSE, &len); |
bf4acbe4 | 3210 | while (d < PL_bufend && SPACE_OR_TAB(*d)) |
748a9306 LW |
3211 | d++; |
3212 | if (*d == '}') { | |
3280af22 | 3213 | char minus = (PL_tokenbuf[0] == '-'); |
44a8e56a | 3214 | s = force_word(s + minus, WORD, FALSE, TRUE, FALSE); |
3215 | if (minus) | |
3216 | force_next('-'); | |
748a9306 LW |
3217 | } |
3218 | } | |
3219 | /* FALL THROUGH */ | |
09bef843 | 3220 | case XATTRBLOCK: |
748a9306 | 3221 | case XBLOCK: |
3280af22 NIS |
3222 | PL_lex_brackstack[PL_lex_brackets++] = XSTATE; |
3223 | PL_expect = XSTATE; | |
a0d0e21e | 3224 | break; |
09bef843 | 3225 | case XATTRTERM: |
a0d0e21e | 3226 | case XTERMBLOCK: |
3280af22 NIS |
3227 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
3228 | PL_expect = XSTATE; | |
a0d0e21e LW |
3229 | break; |
3230 | default: { | |
3231 | char *t; | |
3280af22 NIS |
3232 | if (PL_oldoldbufptr == PL_last_lop) |
3233 | PL_lex_brackstack[PL_lex_brackets++] = XTERM; | |
a0d0e21e | 3234 | else |
3280af22 | 3235 | PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR; |
a0d0e21e | 3236 | s = skipspace(s); |
09ecc4b6 | 3237 | if (*s == '}') |
a0d0e21e | 3238 | OPERATOR(HASHBRACK); |
b8a4b1be GS |
3239 | /* This hack serves to disambiguate a pair of curlies |
3240 | * as being a block or an anon hash. Normally, expectation | |
3241 | * determines that, but in cases where we're not in a | |
3242 | * position to expect anything in particular (like inside | |
3243 | * eval"") we have to resolve the ambiguity. This code | |
3244 | * covers the case where the first term in the curlies is a | |
3245 | * quoted string. Most other cases need to be explicitly | |
3246 | * disambiguated by prepending a `+' before the opening | |
3247 | * curly in order to force resolution as an anon hash. | |
3248 | * | |
3249 | * XXX should probably propagate the outer expectation | |
3250 | * into eval"" to rely less on this hack, but that could | |
3251 | * potentially break current behavior of eval"". | |
3252 | * GSAR 97-07-21 | |
3253 | */ | |
3254 | t = s; | |
3255 | if (*s == '\'' || *s == '"' || *s == '`') { | |
3256 | /* common case: get past first string, handling escapes */ | |
3280af22 | 3257 | for (t++; t < PL_bufend && *t != *s;) |
b8a4b1be GS |
3258 | if (*t++ == '\\' && (*t == '\\' || *t == *s)) |
3259 | t++; | |
3260 | t++; | |
a0d0e21e | 3261 | } |
b8a4b1be | 3262 | else if (*s == 'q') { |
3280af22 | 3263 | if (++t < PL_bufend |
b8a4b1be | 3264 | && (!isALNUM(*t) |
3280af22 | 3265 | || ((*t == 'q' || *t == 'x') && ++t < PL_bufend |
0505442f GS |
3266 | && !isALNUM(*t)))) |
3267 | { | |
b8a4b1be GS |
3268 | char *tmps; |
3269 | char open, close, term; | |
3270 | I32 brackets = 1; | |
3271 | ||
3280af22 | 3272 | while (t < PL_bufend && isSPACE(*t)) |
b8a4b1be GS |
3273 | t++; |
3274 | term = *t; | |
3275 | open = term; | |
3276 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) | |
3277 | term = tmps[5]; | |
3278 | close = term; | |
3279 | if (open == close) | |
3280af22 NIS |
3280 | for (t++; t < PL_bufend; t++) { |
3281 | if (*t == '\\' && t+1 < PL_bufend && open != '\\') | |
b8a4b1be | 3282 | t++; |
6d07e5e9 | 3283 | else if (*t == open) |
b8a4b1be GS |
3284 | break; |
3285 | } | |
3286 | else | |
3280af22 NIS |
3287 | for (t++; t < PL_bufend; t++) { |
3288 | if (*t == '\\' && t+1 < PL_bufend) | |
b8a4b1be | 3289 | t++; |
6d07e5e9 | 3290 | else if (*t == close && --brackets <= 0) |
b8a4b1be GS |
3291 | break; |
3292 | else if (*t == open) | |
3293 | brackets++; | |
3294 | } | |
3295 | } | |
3296 | t++; | |
a0d0e21e | 3297 | } |
7e2040f0 | 3298 | else if (isALNUM_lazy_if(t,UTF)) { |
0505442f | 3299 | t += UTF8SKIP(t); |
7e2040f0 | 3300 | while (t < PL_bufend && isALNUM_lazy_if(t,UTF)) |
0505442f | 3301 | t += UTF8SKIP(t); |
a0d0e21e | 3302 | } |
3280af22 | 3303 | while (t < PL_bufend && isSPACE(*t)) |
a0d0e21e | 3304 | t++; |
b8a4b1be GS |
3305 | /* if comma follows first term, call it an anon hash */ |
3306 | /* XXX it could be a comma expression with loop modifiers */ | |
3280af22 | 3307 | if (t < PL_bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s))) |
b8a4b1be | 3308 | || (*t == '=' && t[1] == '>'))) |
a0d0e21e | 3309 | OPERATOR(HASHBRACK); |
3280af22 | 3310 | if (PL_expect == XREF) |
4e4e412b | 3311 | PL_expect = XTERM; |
a0d0e21e | 3312 | else { |
3280af22 NIS |
3313 | PL_lex_brackstack[PL_lex_brackets-1] = XSTATE; |
3314 | PL_expect = XSTATE; | |
a0d0e21e | 3315 | } |
8990e307 | 3316 | } |
a0d0e21e | 3317 | break; |
463ee0b2 | 3318 | } |
57843af0 | 3319 | yylval.ival = CopLINE(PL_curcop); |
79072805 | 3320 | if (isSPACE(*s) || *s == '#') |
3280af22 | 3321 | PL_copline = NOLINE; /* invalidate current command line number */ |
79072805 | 3322 | TOKEN('{'); |
378cc40b | 3323 | case '}': |
79072805 LW |
3324 | rightbracket: |
3325 | s++; | |
3280af22 | 3326 | if (PL_lex_brackets <= 0) |
d98d5fff | 3327 | yyerror("Unmatched right curly bracket"); |
463ee0b2 | 3328 | else |
3280af22 | 3329 | PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets]; |
c2e66d9e | 3330 | if (PL_lex_brackets < PL_lex_formbrack && PL_lex_state != LEX_INTERPNORMAL) |
3280af22 NIS |
3331 | PL_lex_formbrack = 0; |
3332 | if (PL_lex_state == LEX_INTERPNORMAL) { | |
3333 | if (PL_lex_brackets == 0) { | |
9059aa12 LW |
3334 | if (PL_expect & XFAKEBRACK) { |
3335 | PL_expect &= XENUMMASK; | |
3280af22 NIS |
3336 | PL_lex_state = LEX_INTERPEND; |
3337 | PL_bufptr = s; | |
cea2e8a9 | 3338 | return yylex(); /* ignore fake brackets */ |
79072805 | 3339 | } |
fa83b5b6 | 3340 | if (*s == '-' && s[1] == '>') |
3280af22 | 3341 | PL_lex_state = LEX_INTERPENDMAYBE; |
fa83b5b6 | 3342 | else if (*s != '[' && *s != '{') |
3280af22 | 3343 | PL_lex_state = LEX_INTERPEND; |
79072805 LW |
3344 | } |
3345 | } | |
9059aa12 LW |
3346 | if (PL_expect & XFAKEBRACK) { |
3347 | PL_expect &= XENUMMASK; | |
3280af22 | 3348 | PL_bufptr = s; |
cea2e8a9 | 3349 | return yylex(); /* ignore fake brackets */ |
748a9306 | 3350 | } |
79072805 LW |
3351 | force_next('}'); |
3352 | TOKEN(';'); | |
378cc40b LW |
3353 | case '&': |
3354 | s++; | |
3355 | tmp = *s++; | |
3356 | if (tmp == '&') | |
a0d0e21e | 3357 | AOPERATOR(ANDAND); |
378cc40b | 3358 | s--; |
3280af22 | 3359 | if (PL_expect == XOPERATOR) { |
7e2040f0 GS |
3360 | if (ckWARN(WARN_SEMICOLON) |
3361 | && isIDFIRST_lazy_if(s,UTF) && PL_bufptr == PL_linestart) | |
3362 | { | |
57843af0 | 3363 | CopLINE_dec(PL_curcop); |
cea2e8a9 | 3364 | Perl_warner(aTHX_ WARN_SEMICOLON, PL_warn_nosemi); |
57843af0 | 3365 | CopLINE_inc(PL_curcop); |
463ee0b2 | 3366 | } |
79072805 | 3367 | BAop(OP_BIT_AND); |
463ee0b2 | 3368 | } |
79072805 | 3369 | |
3280af22 NIS |
3370 | s = scan_ident(s - 1, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE); |
3371 | if (*PL_tokenbuf) { | |
3372 | PL_expect = XOPERATOR; | |
3373 | force_ident(PL_tokenbuf, '&'); | |
463ee0b2 | 3374 | } |
79072805 LW |
3375 | else |
3376 | PREREF('&'); | |
c07a80fd | 3377 | yylval.ival = (OPpENTERSUB_AMPER<<8); |
79072805 LW |
3378 | TERM('&'); |
3379 | ||
378cc40b LW |
3380 | case '|': |
3381 | s++; | |
3382 | tmp = *s++; | |
3383 | if (tmp == '|') | |
a0d0e21e | 3384 | AOPERATOR(OROR); |
378cc40b | 3385 | s--; |
79072805 | 3386 | BOop(OP_BIT_OR); |
378cc40b LW |
3387 | case '=': |
3388 | s++; | |
3389 | tmp = *s++; | |
3390 | if (tmp == '=') | |
79072805 LW |
3391 | Eop(OP_EQ); |
3392 | if (tmp == '>') | |
3393 | OPERATOR(','); | |
378cc40b | 3394 | if (tmp == '~') |
79072805 | 3395 | PMop(OP_MATCH); |
599cee73 | 3396 | if (ckWARN(WARN_SYNTAX) && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp)) |
cea2e8a9 | 3397 | Perl_warner(aTHX_ WARN_SYNTAX, "Reversed %c= operator",(int)tmp); |
378cc40b | 3398 | s--; |
3280af22 NIS |
3399 | if (PL_expect == XSTATE && isALPHA(tmp) && |
3400 | (s == PL_linestart+1 || s[-2] == '\n') ) | |
748a9306 | 3401 | { |
3280af22 NIS |
3402 | if (PL_in_eval && !PL_rsfp) { |
3403 | d = PL_bufend; | |
a5f75d66 AD |
3404 | while (s < d) { |
3405 | if (*s++ == '\n') { | |
3406 | incline(s); | |
3407 | if (strnEQ(s,"=cut",4)) { | |
3408 | s = strchr(s,'\n'); | |
3409 | if (s) | |
3410 | s++; | |
3411 | else | |
3412 | s = d; | |
3413 | incline(s); | |
3414 | goto retry; | |
3415 | } | |
3416 | } | |
3417 | } | |
3418 | goto retry; | |
3419 | } | |
3280af22 NIS |
3420 | s = PL_bufend; |
3421 | PL_doextract = TRUE; | |
a0d0e21e LW |
3422 | goto retry; |
3423 | } | |
3280af22 | 3424 | if (PL_lex_brackets < PL_lex_formbrack) { |
a0d0e21e | 3425 | char *t; |
51882d45 | 3426 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 3427 | for (t = s; SPACE_OR_TAB(*t); t++) ; |
51882d45 | 3428 | #else |
bf4acbe4 | 3429 | for (t = s; SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 3430 | #endif |
a0d0e21e LW |
3431 | if (*t == '\n' || *t == '#') { |
3432 | s--; | |
3280af22 | 3433 | PL_expect = XBLOCK; |
a0d0e21e LW |
3434 | goto leftbracket; |
3435 | } | |
79072805 | 3436 | } |
a0d0e21e LW |
3437 | yylval.ival = 0; |
3438 | OPERATOR(ASSIGNOP); | |
378cc40b LW |
3439 | case '!': |
3440 | s++; | |
3441 | tmp = *s++; | |
3442 | if (tmp == '=') | |
79072805 | 3443 | Eop(OP_NE); |
378cc40b | 3444 | if (tmp == '~') |
79072805 | 3445 | PMop(OP_NOT); |
378cc40b LW |
3446 | s--; |
3447 | OPERATOR('!'); | |
3448 | case '<': | |
3280af22 | 3449 | if (PL_expect != XOPERATOR) { |
93a17b20 | 3450 | if (s[1] != '<' && !strchr(s,'>')) |
2f3197b3 | 3451 | check_uni(); |
79072805 LW |
3452 | if (s[1] == '<') |
3453 | s = scan_heredoc(s); | |
3454 | else | |
3455 | s = scan_inputsymbol(s); | |
3456 | TERM(sublex_start()); | |
378cc40b LW |
3457 | } |
3458 | s++; | |
3459 | tmp = *s++; | |
3460 | if (tmp == '<') | |
79072805 | 3461 | SHop(OP_LEFT_SHIFT); |
395c3793 LW |
3462 | if (tmp == '=') { |
3463 | tmp = *s++; | |
3464 | if (tmp == '>') | |
79072805 | 3465 | Eop(OP_NCMP); |
395c3793 | 3466 | s--; |
79072805 | 3467 | Rop(OP_LE); |
395c3793 | 3468 | } |
378cc40b | 3469 | s--; |
79072805 | 3470 | Rop(OP_LT); |
378cc40b LW |
3471 | case '>': |
3472 | s++; | |
3473 | tmp = *s++; | |
3474 | if (tmp == '>') | |
79072805 | 3475 | SHop(OP_RIGHT_SHIFT); |
378cc40b | 3476 | if (tmp == '=') |
79072805 | 3477 | Rop(OP_GE); |
378cc40b | 3478 | s--; |
79072805 | 3479 | Rop(OP_GT); |
378cc40b LW |
3480 | |
3481 | case '$': | |
bbce6d69 | 3482 | CLINE; |
3483 | ||
3280af22 NIS |
3484 | if (PL_expect == XOPERATOR) { |
3485 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3486 | PL_expect = XTERM; | |
a0d0e21e | 3487 | depcom(); |
bbce6d69 | 3488 | return ','; /* grandfather non-comma-format format */ |
a0d0e21e | 3489 | } |
8990e307 | 3490 | } |
a0d0e21e | 3491 | |
7e2040f0 | 3492 | if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-", s[2]))) { |
3280af22 | 3493 | PL_tokenbuf[0] = '@'; |
376b8730 SM |
3494 | s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1, |
3495 | sizeof PL_tokenbuf - 1, FALSE); | |
3496 | if (PL_expect == XOPERATOR) | |
3497 | no_op("Array length", s); | |
3280af22 | 3498 | if (!PL_tokenbuf[1]) |
a0d0e21e | 3499 | PREREF(DOLSHARP); |
3280af22 NIS |
3500 | PL_expect = XOPERATOR; |
3501 | PL_pending_ident = '#'; | |
463ee0b2 | 3502 | TOKEN(DOLSHARP); |
79072805 | 3503 | } |
bbce6d69 | 3504 | |
3280af22 | 3505 | PL_tokenbuf[0] = '$'; |
376b8730 SM |
3506 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, |
3507 | sizeof PL_tokenbuf - 1, FALSE); | |
3508 | if (PL_expect == XOPERATOR) | |
3509 | no_op("Scalar", s); | |
3280af22 NIS |
3510 | if (!PL_tokenbuf[1]) { |
3511 | if (s == PL_bufend) | |
bbce6d69 | 3512 | yyerror("Final $ should be \\$ or $name"); |
3513 | PREREF('$'); | |
8990e307 | 3514 | } |
a0d0e21e | 3515 | |
bbce6d69 | 3516 | /* This kludge not intended to be bulletproof. */ |
3280af22 | 3517 | if (PL_tokenbuf[1] == '[' && !PL_tokenbuf[2]) { |
bbce6d69 | 3518 | yylval.opval = newSVOP(OP_CONST, 0, |
b448e4fe | 3519 | newSViv(PL_compiling.cop_arybase)); |
bbce6d69 | 3520 | yylval.opval->op_private = OPpCONST_ARYBASE; |
3521 | TERM(THING); | |
3522 | } | |
3523 | ||
ff68c719 | 3524 | d = s; |
69d2bceb | 3525 | tmp = (I32)*s; |
3280af22 | 3526 | if (PL_lex_state == LEX_NORMAL) |
ff68c719 | 3527 | s = skipspace(s); |
3528 | ||
3280af22 | 3529 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 3530 | char *t; |
3531 | if (*s == '[') { | |
3280af22 | 3532 | PL_tokenbuf[0] = '@'; |
599cee73 | 3533 | if (ckWARN(WARN_SYNTAX)) { |
bbce6d69 | 3534 | for(t = s + 1; |
7e2040f0 | 3535 | isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$'; |
bbce6d69 | 3536 | t++) ; |
a0d0e21e | 3537 | if (*t++ == ',') { |
3280af22 NIS |
3538 | PL_bufptr = skipspace(PL_bufptr); |
3539 | while (t < PL_bufend && *t != ']') | |
bbce6d69 | 3540 | t++; |
cea2e8a9 | 3541 | Perl_warner(aTHX_ WARN_SYNTAX, |
599cee73 PM |
3542 | "Multidimensional syntax %.*s not supported", |
3543 | (t - PL_bufptr) + 1, PL_bufptr); | |
a0d0e21e LW |
3544 | } |
3545 | } | |
bbce6d69 | 3546 | } |
3547 | else if (*s == '{') { | |
3280af22 | 3548 | PL_tokenbuf[0] = '%'; |
599cee73 | 3549 | if (ckWARN(WARN_SYNTAX) && strEQ(PL_tokenbuf+1, "SIG") && |
bbce6d69 | 3550 | (t = strchr(s, '}')) && (t = strchr(t, '='))) |
3551 | { | |
3280af22 | 3552 | char tmpbuf[sizeof PL_tokenbuf]; |
a0d0e21e LW |
3553 | STRLEN len; |
3554 | for (t++; isSPACE(*t); t++) ; | |
7e2040f0 | 3555 | if (isIDFIRST_lazy_if(t,UTF)) { |
8903cb82 | 3556 | t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len); |
59a6d928 | 3557 | for (; isSPACE(*t); t++) ; |
864dbfa3 | 3558 | if (*t == ';' && get_cv(tmpbuf, FALSE)) |
cea2e8a9 | 3559 | Perl_warner(aTHX_ WARN_SYNTAX, |
599cee73 | 3560 | "You need to quote \"%s\"", tmpbuf); |
748a9306 | 3561 | } |
93a17b20 LW |
3562 | } |
3563 | } | |
2f3197b3 | 3564 | } |
bbce6d69 | 3565 | |
3280af22 | 3566 | PL_expect = XOPERATOR; |
69d2bceb | 3567 | if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) { |
3280af22 NIS |
3568 | bool islop = (PL_last_lop == PL_oldoldbufptr); |
3569 | if (!islop || PL_last_lop_op == OP_GREPSTART) | |
3570 | PL_expect = XOPERATOR; | |
bbce6d69 | 3571 | else if (strchr("$@\"'`q", *s)) |
3280af22 | 3572 | PL_expect = XTERM; /* e.g. print $fh "foo" */ |
7e2040f0 | 3573 | else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF)) |
3280af22 | 3574 | PL_expect = XTERM; /* e.g. print $fh &sub */ |
7e2040f0 | 3575 | else if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 3576 | char tmpbuf[sizeof PL_tokenbuf]; |
8903cb82 | 3577 | scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
155aba94 | 3578 | if ((tmp = keyword(tmpbuf, len))) { |
84902520 TB |
3579 | /* binary operators exclude handle interpretations */ |
3580 | switch (tmp) { | |
3581 | case -KEY_x: | |
3582 | case -KEY_eq: | |
3583 | case -KEY_ne: | |
3584 | case -KEY_gt: | |
3585 | case -KEY_lt: | |
3586 | case -KEY_ge: | |
3587 | case -KEY_le: | |
3588 | case -KEY_cmp: | |
3589 | break; | |
3590 | default: | |
3280af22 | 3591 | PL_expect = XTERM; /* e.g. print $fh length() */ |
84902520 TB |
3592 | break; |
3593 | } | |
3594 | } | |
68dc0745 | 3595 | else { |
3596 | GV *gv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV); | |
3597 | if (gv && GvCVu(gv)) | |
3280af22 | 3598 | PL_expect = XTERM; /* e.g. print $fh subr() */ |
93a17b20 | 3599 | } |
93a17b20 | 3600 | } |
bbce6d69 | 3601 | else if (isDIGIT(*s)) |
3280af22 | 3602 | PL_expect = XTERM; /* e.g. print $fh 3 */ |
bbce6d69 | 3603 | else if (*s == '.' && isDIGIT(s[1])) |
3280af22 | 3604 | PL_expect = XTERM; /* e.g. print $fh .3 */ |
e0587a03 | 3605 | else if (strchr("/?-+", *s) && !isSPACE(s[1]) && s[1] != '=') |
3280af22 | 3606 | PL_expect = XTERM; /* e.g. print $fh -1 */ |
e0587a03 | 3607 | else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) && s[2] != '=') |
3280af22 | 3608 | PL_expect = XTERM; /* print $fh <<"EOF" */ |
bbce6d69 | 3609 | } |
3280af22 | 3610 | PL_pending_ident = '$'; |
79072805 | 3611 | TOKEN('$'); |
378cc40b LW |
3612 | |
3613 | case '@': | |
3280af22 | 3614 | if (PL_expect == XOPERATOR) |
bbce6d69 | 3615 | no_op("Array", s); |
3280af22 NIS |
3616 | PL_tokenbuf[0] = '@'; |
3617 | s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE); | |
3618 | if (!PL_tokenbuf[1]) { | |
3619 | if (s == PL_bufend) | |
bbce6d69 | 3620 | yyerror("Final @ should be \\@ or @name"); |
3621 | PREREF('@'); | |
3622 | } | |
3280af22 | 3623 | if (PL_lex_state == LEX_NORMAL) |
ff68c719 | 3624 | s = skipspace(s); |
3280af22 | 3625 | if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) { |
bbce6d69 | 3626 | if (*s == '{') |
3280af22 | 3627 | PL_tokenbuf[0] = '%'; |
a0d0e21e LW |
3628 | |
3629 | /* Warn about @ where they meant $. */ | |
599cee73 | 3630 | if (ckWARN(WARN_SYNTAX)) { |
a0d0e21e LW |
3631 | if (*s == '[' || *s == '{') { |
3632 | char *t = s + 1; | |
7e2040f0 | 3633 | while (*t && (isALNUM_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t))) |
a0d0e21e LW |
3634 | t++; |
3635 | if (*t == '}' || *t == ']') { | |
3636 | t++; | |
3280af22 | 3637 | PL_bufptr = skipspace(PL_bufptr); |
cea2e8a9 | 3638 | Perl_warner(aTHX_ WARN_SYNTAX, |
599cee73 | 3639 | "Scalar value %.*s better written as $%.*s", |
3280af22 | 3640 | t-PL_bufptr, PL_bufptr, t-PL_bufptr-1, PL_bufptr+1); |
a0d0e21e | 3641 | } |
93a17b20 LW |
3642 | } |
3643 | } | |
463ee0b2 | 3644 | } |
3280af22 | 3645 | PL_pending_ident = '@'; |
79072805 | 3646 | TERM('@'); |
378cc40b LW |
3647 | |
3648 | case '/': /* may either be division or pattern */ | |
3649 | case '?': /* may either be conditional or pattern */ | |
3280af22 | 3650 | if (PL_expect != XOPERATOR) { |
c277df42 | 3651 | /* Disable warning on "study /blah/" */ |
4e553d73 NIS |
3652 | if (PL_oldoldbufptr == PL_last_uni |
3653 | && (*PL_last_uni != 's' || s - PL_last_uni < 5 | |
7e2040f0 GS |
3654 | || memNE(PL_last_uni, "study", 5) |
3655 | || isALNUM_lazy_if(PL_last_uni+5,UTF))) | |
c277df42 | 3656 | check_uni(); |
8782bef2 | 3657 | s = scan_pat(s,OP_MATCH); |
79072805 | 3658 | TERM(sublex_start()); |
378cc40b LW |
3659 | } |
3660 | tmp = *s++; | |
a687059c | 3661 | if (tmp == '/') |
79072805 | 3662 | Mop(OP_DIVIDE); |
378cc40b LW |
3663 | OPERATOR(tmp); |
3664 | ||
3665 | case '.': | |
51882d45 GS |
3666 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack |
3667 | #ifdef PERL_STRICT_CR | |
3668 | && s[1] == '\n' | |
3669 | #else | |
3670 | && (s[1] == '\n' || (s[1] == '\r' && s[2] == '\n')) | |
3671 | #endif | |
3672 | && (s == PL_linestart || s[-1] == '\n') ) | |
3673 | { | |
3280af22 NIS |
3674 | PL_lex_formbrack = 0; |
3675 | PL_expect = XSTATE; | |
79072805 LW |
3676 | goto rightbracket; |
3677 | } | |
3280af22 | 3678 | if (PL_expect == XOPERATOR || !isDIGIT(s[1])) { |
378cc40b | 3679 | tmp = *s++; |
a687059c LW |
3680 | if (*s == tmp) { |
3681 | s++; | |
2f3197b3 LW |
3682 | if (*s == tmp) { |
3683 | s++; | |
79072805 | 3684 | yylval.ival = OPf_SPECIAL; |
2f3197b3 LW |
3685 | } |
3686 | else | |
79072805 | 3687 | yylval.ival = 0; |
378cc40b | 3688 | OPERATOR(DOTDOT); |
a687059c | 3689 | } |
3280af22 | 3690 | if (PL_expect != XOPERATOR) |
2f3197b3 | 3691 | check_uni(); |
79072805 | 3692 | Aop(OP_CONCAT); |
378cc40b LW |
3693 | } |
3694 | /* FALL THROUGH */ | |
3695 | case '0': case '1': case '2': case '3': case '4': | |
3696 | case '5': case '6': case '7': case '8': case '9': | |
b73d6f50 | 3697 | s = scan_num(s, &yylval); |
4e553d73 | 3698 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
607df283 SC |
3699 | "### Saw number in '%s'\n", s); |
3700 | } ) | |
3280af22 | 3701 | if (PL_expect == XOPERATOR) |
8990e307 | 3702 | no_op("Number",s); |
79072805 LW |
3703 | TERM(THING); |
3704 | ||
3705 | case '\'': | |
09bef843 | 3706 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3707 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3708 | "### Saw string before '%s'\n", s); |
607df283 | 3709 | } ) |
3280af22 NIS |
3710 | if (PL_expect == XOPERATOR) { |
3711 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3712 | PL_expect = XTERM; | |
a0d0e21e LW |
3713 | depcom(); |
3714 | return ','; /* grandfather non-comma-format format */ | |
3715 | } | |
463ee0b2 | 3716 | else |
8990e307 | 3717 | no_op("String",s); |
463ee0b2 | 3718 | } |
79072805 | 3719 | if (!s) |
85e6fe83 | 3720 | missingterm((char*)0); |
79072805 LW |
3721 | yylval.ival = OP_CONST; |
3722 | TERM(sublex_start()); | |
3723 | ||
3724 | case '"': | |
09bef843 | 3725 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3726 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3727 | "### Saw string before '%s'\n", s); |
607df283 | 3728 | } ) |
3280af22 NIS |
3729 | if (PL_expect == XOPERATOR) { |
3730 | if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) { | |
3731 | PL_expect = XTERM; | |
a0d0e21e LW |
3732 | depcom(); |
3733 | return ','; /* grandfather non-comma-format format */ | |
3734 | } | |
463ee0b2 | 3735 | else |
8990e307 | 3736 | no_op("String",s); |
463ee0b2 | 3737 | } |
79072805 | 3738 | if (!s) |
85e6fe83 | 3739 | missingterm((char*)0); |
4633a7c4 | 3740 | yylval.ival = OP_CONST; |
3280af22 | 3741 | for (d = SvPV(PL_lex_stuff, len); len; len--, d++) { |
fd400ab9 | 3742 | if (*d == '$' || *d == '@' || *d == '\\' || UTF8_IS_CONTINUED(*d)) { |
4633a7c4 LW |
3743 | yylval.ival = OP_STRINGIFY; |
3744 | break; | |
3745 | } | |
3746 | } | |
79072805 LW |
3747 | TERM(sublex_start()); |
3748 | ||
3749 | case '`': | |
09bef843 | 3750 | s = scan_str(s,FALSE,FALSE); |
4e553d73 | 3751 | DEBUG_T( { PerlIO_printf(Perl_debug_log, |
207e3d1a | 3752 | "### Saw backtick string before '%s'\n", s); |
607df283 | 3753 | } ) |
3280af22 | 3754 | if (PL_expect == XOPERATOR) |
8990e307 | 3755 | no_op("Backticks",s); |
79072805 | 3756 | if (!s) |
85e6fe83 | 3757 | missingterm((char*)0); |
79072805 LW |
3758 | yylval.ival = OP_BACKTICK; |
3759 | set_csh(); | |
3760 | TERM(sublex_start()); | |
3761 | ||
3762 | case '\\': | |
3763 | s++; | |
599cee73 | 3764 | if (ckWARN(WARN_SYNTAX) && PL_lex_inwhat && isDIGIT(*s)) |
cea2e8a9 | 3765 | Perl_warner(aTHX_ WARN_SYNTAX,"Can't use \\%c to mean $%c in expression", |
599cee73 | 3766 | *s, *s); |
3280af22 | 3767 | if (PL_expect == XOPERATOR) |
8990e307 | 3768 | no_op("Backslash",s); |
79072805 LW |
3769 | OPERATOR(REFGEN); |
3770 | ||
a7cb1f99 | 3771 | case 'v': |
e526c9e6 | 3772 | if (isDIGIT(s[1]) && PL_expect != XOPERATOR) { |
a7cb1f99 GS |
3773 | char *start = s; |
3774 | start++; | |
3775 | start++; | |
dd629d5b | 3776 | while (isDIGIT(*start) || *start == '_') |
a7cb1f99 GS |
3777 | start++; |
3778 | if (*start == '.' && isDIGIT(start[1])) { | |
b73d6f50 | 3779 | s = scan_num(s, &yylval); |
a7cb1f99 GS |
3780 | TERM(THING); |
3781 | } | |
e526c9e6 GS |
3782 | /* avoid v123abc() or $h{v1}, allow C<print v10;> */ |
3783 | else if (!isALPHA(*start) && (PL_expect == XTERM || PL_expect == XREF)) { | |
3784 | char c = *start; | |
3785 | GV *gv; | |
3786 | *start = '\0'; | |
3787 | gv = gv_fetchpv(s, FALSE, SVt_PVCV); | |
3788 | *start = c; | |
3789 | if (!gv) { | |
b73d6f50 | 3790 | s = scan_num(s, &yylval); |
e526c9e6 GS |
3791 | TERM(THING); |
3792 | } | |
3793 | } | |
a7cb1f99 GS |
3794 | } |
3795 | goto keylookup; | |
79072805 | 3796 | case 'x': |
3280af22 | 3797 | if (isDIGIT(s[1]) && PL_expect == XOPERATOR) { |
79072805 LW |
3798 | s++; |
3799 | Mop(OP_REPEAT); | |
2f3197b3 | 3800 | } |
79072805 LW |
3801 | goto keylookup; |
3802 | ||
378cc40b | 3803 | case '_': |
79072805 LW |
3804 | case 'a': case 'A': |
3805 | case 'b': case 'B': | |
3806 | case 'c': case 'C': | |
3807 | case 'd': case 'D': | |
3808 | case 'e': case 'E': | |
3809 | case 'f': case 'F': | |
3810 | case 'g': case 'G': | |
3811 | case 'h': case 'H': | |
3812 | case 'i': case 'I': | |
3813 | case 'j': case 'J': | |
3814 | case 'k': case 'K': | |
3815 | case 'l': case 'L': | |
3816 | case 'm': case 'M': | |
3817 | case 'n': case 'N': | |
3818 | case 'o': case 'O': | |
3819 | case 'p': case 'P': | |
3820 | case 'q': case 'Q': | |
3821 | case 'r': case 'R': | |
3822 | case 's': case 'S': | |
3823 | case 't': case 'T': | |
3824 | case 'u': case 'U': | |
a7cb1f99 | 3825 | case 'V': |
79072805 LW |
3826 | case 'w': case 'W': |
3827 | case 'X': | |
3828 | case 'y': case 'Y': | |
3829 | case 'z': case 'Z': | |
3830 | ||
49dc05e3 | 3831 | keylookup: { |
161b471a NIS |
3832 | gv = Nullgv; |
3833 | gvp = 0; | |
49dc05e3 | 3834 | |
3280af22 NIS |
3835 | PL_bufptr = s; |
3836 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); | |
8ebc5c01 | 3837 | |
3838 | /* Some keywords can be followed by any delimiter, including ':' */ | |
155aba94 GS |
3839 | tmp = ((len == 1 && strchr("msyq", PL_tokenbuf[0])) || |
3840 | (len == 2 && ((PL_tokenbuf[0] == 't' && PL_tokenbuf[1] == 'r') || | |
3841 | (PL_tokenbuf[0] == 'q' && | |
3842 | strchr("qwxr", PL_tokenbuf[1]))))); | |
8ebc5c01 | 3843 | |
3844 | /* x::* is just a word, unless x is "CORE" */ | |
3280af22 | 3845 | if (!tmp && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE")) |
4633a7c4 LW |
3846 | goto just_a_word; |
3847 | ||
3643fb5f | 3848 | d = s; |
3280af22 | 3849 | while (d < PL_bufend && isSPACE(*d)) |
3643fb5f CS |
3850 | d++; /* no comments skipped here, or s### is misparsed */ |
3851 | ||
3852 | /* Is this a label? */ | |
3280af22 NIS |
3853 | if (!tmp && PL_expect == XSTATE |
3854 | && d < PL_bufend && *d == ':' && *(d + 1) != ':') { | |
8ebc5c01 | 3855 | s = d + 1; |
3280af22 | 3856 | yylval.pval = savepv(PL_tokenbuf); |
8ebc5c01 | 3857 | CLINE; |
3858 | TOKEN(LABEL); | |
3643fb5f CS |
3859 | } |
3860 | ||
3861 | /* Check for keywords */ | |
3280af22 | 3862 | tmp = keyword(PL_tokenbuf, len); |
748a9306 LW |
3863 | |
3864 | /* Is this a word before a => operator? */ | |
1c3923b3 | 3865 | if (*d == '=' && d[1] == '>') { |
748a9306 | 3866 | CLINE; |
3280af22 | 3867 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf,0)); |
748a9306 | 3868 | yylval.opval->op_private = OPpCONST_BARE; |
7948272d NIS |
3869 | if (UTF && !IN_BYTE && is_utf8_string((U8*)PL_tokenbuf, len)) |
3870 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); | |
748a9306 LW |
3871 | TERM(WORD); |
3872 | } | |
3873 | ||
a0d0e21e | 3874 | if (tmp < 0) { /* second-class keyword? */ |
56f7f34b CS |
3875 | GV *ogv = Nullgv; /* override (winner) */ |
3876 | GV *hgv = Nullgv; /* hidden (loser) */ | |
3280af22 | 3877 | if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) { |
56f7f34b | 3878 | CV *cv; |
3280af22 | 3879 | if ((gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV)) && |
56f7f34b CS |
3880 | (cv = GvCVu(gv))) |
3881 | { | |
3882 | if (GvIMPORTED_CV(gv)) | |
3883 | ogv = gv; | |
3884 | else if (! CvMETHOD(cv)) | |
3885 | hgv = gv; | |
3886 | } | |
3887 | if (!ogv && | |
3280af22 NIS |
3888 | (gvp = (GV**)hv_fetch(PL_globalstash,PL_tokenbuf,len,FALSE)) && |
3889 | (gv = *gvp) != (GV*)&PL_sv_undef && | |
56f7f34b CS |
3890 | GvCVu(gv) && GvIMPORTED_CV(gv)) |
3891 | { | |
3892 | ogv = gv; | |
3893 | } | |
3894 | } | |
3895 | if (ogv) { | |
3896 | tmp = 0; /* overridden by import or by GLOBAL */ | |
6e7b2336 GS |
3897 | } |
3898 | else if (gv && !gvp | |
3899 | && -tmp==KEY_lock /* XXX generalizable kludge */ | |
d0456cad | 3900 | && GvCVu(gv) |
3280af22 | 3901 | && !hv_fetch(GvHVn(PL_incgv), "Thread.pm", 9, FALSE)) |
6e7b2336 GS |
3902 | { |
3903 | tmp = 0; /* any sub overrides "weak" keyword */ | |
a0d0e21e | 3904 | } |
56f7f34b CS |
3905 | else { /* no override */ |
3906 | tmp = -tmp; | |
3907 | gv = Nullgv; | |
3908 | gvp = 0; | |
4944e2f7 GS |
3909 | if (ckWARN(WARN_AMBIGUOUS) && hgv |
3910 | && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */ | |
cea2e8a9 | 3911 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
599cee73 | 3912 | "Ambiguous call resolved as CORE::%s(), %s", |
2f3ca594 | 3913 | GvENAME(hgv), "qualify as such or use &"); |
49dc05e3 | 3914 | } |
a0d0e21e LW |
3915 | } |
3916 | ||
3917 | reserved_word: | |
3918 | switch (tmp) { | |
79072805 LW |
3919 | |
3920 | default: /* not a keyword */ | |
93a17b20 | 3921 | just_a_word: { |
96e4d5b1 | 3922 | SV *sv; |
3280af22 | 3923 | char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]); |
8990e307 LW |
3924 | |
3925 | /* Get the rest if it looks like a package qualifier */ | |
3926 | ||
155aba94 | 3927 | if (*s == '\'' || (*s == ':' && s[1] == ':')) { |
c3e0f903 | 3928 | STRLEN morelen; |
3280af22 | 3929 | s = scan_word(s, PL_tokenbuf + len, sizeof PL_tokenbuf - len, |
c3e0f903 GS |
3930 | TRUE, &morelen); |
3931 | if (!morelen) | |
cea2e8a9 | 3932 | Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf, |
ec2ab091 | 3933 | *s == '\'' ? "'" : "::"); |
c3e0f903 | 3934 | len += morelen; |
a0d0e21e | 3935 | } |
8990e307 | 3936 | |
3280af22 NIS |
3937 | if (PL_expect == XOPERATOR) { |
3938 | if (PL_bufptr == PL_linestart) { | |
57843af0 | 3939 | CopLINE_dec(PL_curcop); |
cea2e8a9 | 3940 | Perl_warner(aTHX_ WARN_SEMICOLON, PL_warn_nosemi); |
57843af0 | 3941 | CopLINE_inc(PL_curcop); |
463ee0b2 LW |
3942 | } |
3943 | else | |
54310121 | 3944 | no_op("Bareword",s); |
463ee0b2 | 3945 | } |
8990e307 | 3946 | |
c3e0f903 GS |
3947 | /* Look for a subroutine with this name in current package, |
3948 | unless name is "Foo::", in which case Foo is a bearword | |
3949 | (and a package name). */ | |
3950 | ||
3951 | if (len > 2 && | |
3280af22 | 3952 | PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':') |
c3e0f903 | 3953 | { |
e476b1b5 | 3954 | if (ckWARN(WARN_BAREWORD) && ! gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVHV)) |
4e553d73 | 3955 | Perl_warner(aTHX_ WARN_BAREWORD, |
599cee73 | 3956 | "Bareword \"%s\" refers to nonexistent package", |
3280af22 | 3957 | PL_tokenbuf); |
c3e0f903 | 3958 | len -= 2; |
3280af22 | 3959 | PL_tokenbuf[len] = '\0'; |
c3e0f903 GS |
3960 | gv = Nullgv; |
3961 | gvp = 0; | |
3962 | } | |
3963 | else { | |
3964 | len = 0; | |
3965 | if (!gv) | |
3280af22 | 3966 | gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV); |
c3e0f903 GS |
3967 | } |
3968 | ||
3969 | /* if we saw a global override before, get the right name */ | |
8990e307 | 3970 | |
49dc05e3 | 3971 | if (gvp) { |
79cb57f6 | 3972 | sv = newSVpvn("CORE::GLOBAL::",14); |
3280af22 | 3973 | sv_catpv(sv,PL_tokenbuf); |
49dc05e3 GS |
3974 | } |
3975 | else | |
3280af22 | 3976 | sv = newSVpv(PL_tokenbuf,0); |
8990e307 | 3977 | |
a0d0e21e LW |
3978 | /* Presume this is going to be a bareword of some sort. */ |
3979 | ||
3980 | CLINE; | |
49dc05e3 | 3981 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv); |
a0d0e21e LW |
3982 | yylval.opval->op_private = OPpCONST_BARE; |
3983 | ||
c3e0f903 GS |
3984 | /* And if "Foo::", then that's what it certainly is. */ |
3985 | ||
3986 | if (len) | |
3987 | goto safe_bareword; | |
3988 | ||
8990e307 LW |
3989 | /* See if it's the indirect object for a list operator. */ |
3990 | ||
3280af22 NIS |
3991 | if (PL_oldoldbufptr && |
3992 | PL_oldoldbufptr < PL_bufptr && | |
65cec589 GS |
3993 | (PL_oldoldbufptr == PL_last_lop |
3994 | || PL_oldoldbufptr == PL_last_uni) && | |
a0d0e21e | 3995 | /* NO SKIPSPACE BEFORE HERE! */ |
a9ef352a GS |
3996 | (PL_expect == XREF || |
3997 | ((PL_opargs[PL_last_lop_op] >> OASHIFT)& 7) == OA_FILEREF)) | |
a0d0e21e | 3998 | { |
748a9306 LW |
3999 | bool immediate_paren = *s == '('; |
4000 | ||
a0d0e21e LW |
4001 | /* (Now we can afford to cross potential line boundary.) */ |
4002 | s = skipspace(s); | |
4003 | ||
4004 | /* Two barewords in a row may indicate method call. */ | |
4005 | ||
7e2040f0 | 4006 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && (tmp=intuit_method(s,gv))) |
a0d0e21e LW |
4007 | return tmp; |
4008 | ||
4009 | /* If not a declared subroutine, it's an indirect object. */ | |
4010 | /* (But it's an indir obj regardless for sort.) */ | |
4011 | ||
7948272d | 4012 | if ( !immediate_paren && (PL_last_lop_op == OP_SORT || |
f0670693 | 4013 | ((!gv || !GvCVu(gv)) && |
a9ef352a | 4014 | (PL_last_lop_op != OP_MAPSTART && |
f0670693 | 4015 | PL_last_lop_op != OP_GREPSTART)))) |
a9ef352a | 4016 | { |
3280af22 | 4017 | PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR; |
748a9306 | 4018 | goto bareword; |
93a17b20 LW |
4019 | } |
4020 | } | |
8990e307 | 4021 | |
8990e307 | 4022 | |
3280af22 | 4023 | PL_expect = XOPERATOR; |
8990e307 | 4024 | s = skipspace(s); |
1c3923b3 GS |
4025 | |
4026 | /* Is this a word before a => operator? */ | |
4027 | if (*s == '=' && s[1] == '>') { | |
4028 | CLINE; | |
4029 | sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf); | |
7948272d NIS |
4030 | if (UTF && !IN_BYTE && is_utf8_string((U8*)PL_tokenbuf, len)) |
4031 | SvUTF8_on(((SVOP*)yylval.opval)->op_sv); | |
1c3923b3 GS |
4032 | TERM(WORD); |
4033 | } | |
4034 | ||
4035 | /* If followed by a paren, it's certainly a subroutine. */ | |
93a17b20 | 4036 | if (*s == '(') { |
79072805 | 4037 | CLINE; |
96e4d5b1 | 4038 | if (gv && GvCVu(gv)) { |
bf4acbe4 | 4039 | for (d = s + 1; SPACE_OR_TAB(*d); d++) ; |
7a52d87a | 4040 | if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) { |
96e4d5b1 | 4041 | s = d + 1; |
4042 | goto its_constant; | |
4043 | } | |
4044 | } | |
3280af22 NIS |
4045 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4046 | PL_expect = XOPERATOR; | |
93a17b20 | 4047 | force_next(WORD); |
c07a80fd | 4048 | yylval.ival = 0; |
463ee0b2 | 4049 | TOKEN('&'); |
79072805 | 4050 | } |
93a17b20 | 4051 | |
a0d0e21e | 4052 | /* If followed by var or block, call it a method (unless sub) */ |
8990e307 | 4053 | |
8ebc5c01 | 4054 | if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) { |
3280af22 NIS |
4055 | PL_last_lop = PL_oldbufptr; |
4056 | PL_last_lop_op = OP_METHOD; | |
93a17b20 | 4057 | PREBLOCK(METHOD); |
463ee0b2 LW |
4058 | } |
4059 | ||
8990e307 LW |
4060 | /* If followed by a bareword, see if it looks like indir obj. */ |
4061 | ||
7e2040f0 | 4062 | if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && (tmp = intuit_method(s,gv))) |
a0d0e21e | 4063 | return tmp; |
93a17b20 | 4064 | |
8990e307 LW |
4065 | /* Not a method, so call it a subroutine (if defined) */ |
4066 | ||
8ebc5c01 | 4067 | if (gv && GvCVu(gv)) { |
46fc3d4c | 4068 | CV* cv; |
0453d815 PM |
4069 | if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS)) |
4070 | Perl_warner(aTHX_ WARN_AMBIGUOUS, | |
4071 | "Ambiguous use of -%s resolved as -&%s()", | |
3280af22 | 4072 | PL_tokenbuf, PL_tokenbuf); |
89bfa8cd | 4073 | /* Check for a constant sub */ |
46fc3d4c | 4074 | cv = GvCV(gv); |
96e4d5b1 | 4075 | if ((sv = cv_const_sv(cv))) { |
4076 | its_constant: | |
4077 | SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv); | |
4078 | ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv); | |
4079 | yylval.opval->op_private = 0; | |
4080 | TOKEN(WORD); | |
89bfa8cd | 4081 | } |
4082 | ||
a5f75d66 AD |
4083 | /* Resolve to GV now. */ |
4084 | op_free(yylval.opval); | |
4085 | yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv)); | |
9675f7ac | 4086 | yylval.opval->op_private |= OPpENTERSUB_NOPAREN; |
7a52d87a | 4087 | PL_last_lop = PL_oldbufptr; |
bf848113 | 4088 | PL_last_lop_op = OP_ENTERSUB; |
4633a7c4 LW |
4089 | /* Is there a prototype? */ |
4090 | if (SvPOK(cv)) { | |
4091 | STRLEN len; | |
7a52d87a | 4092 | char *proto = SvPV((SV*)cv, len); |
4633a7c4 LW |
4093 | if (!len) |
4094 | TERM(FUNC0SUB); | |
7a52d87a | 4095 | if (strEQ(proto, "$")) |
4633a7c4 | 4096 | OPERATOR(UNIOPSUB); |
7a52d87a | 4097 | if (*proto == '&' && *s == '{') { |
3280af22 | 4098 | sv_setpv(PL_subname,"__ANON__"); |
4633a7c4 LW |
4099 | PREBLOCK(LSTOPSUB); |
4100 | } | |
a9ef352a | 4101 | } |
3280af22 NIS |
4102 | PL_nextval[PL_nexttoke].opval = yylval.opval; |
4103 | PL_expect = XTERM; | |
8990e307 LW |
4104 | force_next(WORD); |
4105 | TOKEN(NOAMP); | |
4106 | } | |
748a9306 | 4107 | |
8990e307 LW |
4108 | /* Call it a bare word */ |
4109 | ||
5603f27d GS |
4110 | if (PL_hints & HINT_STRICT_SUBS) |
4111 | yylval.opval->op_private |= OPpCONST_STRICT; | |
4112 | else { | |
4113 | bareword: | |
4114 | if (ckWARN(WARN_RESERVED)) { | |
4115 | if (lastchar != '-') { | |
4116 | for (d = PL_tokenbuf; *d && isLOWER(*d); d++) ; | |
4117 | if (!*d) | |
cea2e8a9 | 4118 | Perl_warner(aTHX_ WARN_RESERVED, PL_warn_reserved, |
5603f27d GS |
4119 | PL_tokenbuf); |
4120 | } | |
748a9306 LW |
4121 | } |
4122 | } | |
c3e0f903 GS |
4123 | |
4124 | safe_bareword: | |
f248d071 | 4125 | if (lastchar && strchr("*%&", lastchar) && ckWARN_d(WARN_AMBIGUOUS)) { |
0453d815 PM |
4126 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
4127 | "Operator or semicolon missing before %c%s", | |
3280af22 | 4128 | lastchar, PL_tokenbuf); |
0453d815 PM |
4129 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
4130 | "Ambiguous use of %c resolved as operator %c", | |
748a9306 LW |
4131 | lastchar, lastchar); |
4132 | } | |
93a17b20 | 4133 | TOKEN(WORD); |
79072805 | 4134 | } |
79072805 | 4135 | |
68dc0745 | 4136 | case KEY___FILE__: |
46fc3d4c | 4137 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
ed094faf | 4138 | newSVpv(CopFILE(PL_curcop),0)); |
46fc3d4c | 4139 | TERM(THING); |
4140 | ||
79072805 | 4141 | case KEY___LINE__: |
cf2093f6 | 4142 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, |
57843af0 | 4143 | Perl_newSVpvf(aTHX_ "%"IVdf, (IV)CopLINE(PL_curcop))); |
79072805 | 4144 | TERM(THING); |
68dc0745 | 4145 | |
4146 | case KEY___PACKAGE__: | |
4147 | yylval.opval = (OP*)newSVOP(OP_CONST, 0, | |
3280af22 NIS |
4148 | (PL_curstash |
4149 | ? newSVsv(PL_curstname) | |
4150 | : &PL_sv_undef)); | |
79072805 | 4151 | TERM(THING); |
79072805 | 4152 | |
e50aee73 | 4153 | case KEY___DATA__: |
79072805 LW |
4154 | case KEY___END__: { |
4155 | GV *gv; | |
79072805 LW |
4156 | |
4157 | /*SUPPRESS 560*/ | |
3280af22 | 4158 | if (PL_rsfp && (!PL_in_eval || PL_tokenbuf[2] == 'D')) { |
e50aee73 | 4159 | char *pname = "main"; |
3280af22 NIS |
4160 | if (PL_tokenbuf[2] == 'D') |
4161 | pname = HvNAME(PL_curstash ? PL_curstash : PL_defstash); | |
cea2e8a9 | 4162 | gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO); |
a5f75d66 | 4163 | GvMULTI_on(gv); |
79072805 | 4164 | if (!GvIO(gv)) |
a0d0e21e | 4165 | GvIOp(gv) = newIO(); |
3280af22 | 4166 | IoIFP(GvIOp(gv)) = PL_rsfp; |
a0d0e21e LW |
4167 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
4168 | { | |
3280af22 | 4169 | int fd = PerlIO_fileno(PL_rsfp); |
a0d0e21e LW |
4170 | fcntl(fd,F_SETFD,fd >= 3); |
4171 | } | |
79072805 | 4172 | #endif |
fd049845 | 4173 | /* Mark this internal pseudo-handle as clean */ |
4174 | IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; | |
3280af22 | 4175 | if (PL_preprocess) |
50952442 | 4176 | IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; |
3280af22 | 4177 | else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) |
50952442 | 4178 | IoTYPE(GvIOp(gv)) = IoTYPE_STD; |
79072805 | 4179 | else |
50952442 | 4180 | IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; |
c39cd008 GS |
4181 | #if defined(WIN32) && !defined(PERL_TEXTMODE_SCRIPTS) |
4182 | /* if the script was opened in binmode, we need to revert | |
53129d29 | 4183 | * it to text mode for compatibility; but only iff it has CRs |
c39cd008 | 4184 | * XXX this is a questionable hack at best. */ |
53129d29 GS |
4185 | if (PL_bufend-PL_bufptr > 2 |
4186 | && PL_bufend[-1] == '\n' && PL_bufend[-2] == '\r') | |
c39cd008 GS |
4187 | { |
4188 | Off_t loc = 0; | |
50952442 | 4189 | if (IoTYPE(GvIOp(gv)) == IoTYPE_RDONLY) { |
c39cd008 GS |
4190 | loc = PerlIO_tell(PL_rsfp); |
4191 | (void)PerlIO_seek(PL_rsfp, 0L, 0); | |
4192 | } | |
4193 | if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) { | |
c39cd008 GS |
4194 | if (loc > 0) |
4195 | PerlIO_seek(PL_rsfp, loc, 0); | |
4196 | } | |
4197 | } | |
4198 | #endif | |
7948272d NIS |
4199 | #ifdef PERLIO_LAYERS |
4200 | if (UTF && !IN_BYTE) | |
4201 | PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8"); | |
4202 | #endif | |
3280af22 | 4203 | PL_rsfp = Nullfp; |
79072805 LW |
4204 | } |
4205 | goto fake_eof; | |
e929a76b | 4206 | } |
de3bb511 | 4207 | |
8990e307 | 4208 | case KEY_AUTOLOAD: |
ed6116ce | 4209 | case KEY_DESTROY: |
79072805 | 4210 | case KEY_BEGIN: |
7d30b5c4 | 4211 | case KEY_CHECK: |
7d07dbc2 | 4212 | case KEY_INIT: |
7d30b5c4 | 4213 | case KEY_END: |
3280af22 NIS |
4214 | if (PL_expect == XSTATE) { |
4215 | s = PL_bufptr; | |
93a17b20 | 4216 | goto really_sub; |
79072805 LW |
4217 | } |
4218 | goto just_a_word; | |
4219 | ||
a0d0e21e LW |
4220 | case KEY_CORE: |
4221 | if (*s == ':' && s[1] == ':') { | |
4222 | s += 2; | |
748a9306 | 4223 | d = s; |
3280af22 | 4224 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len); |
6798c92b GS |
4225 | if (!(tmp = keyword(PL_tokenbuf, len))) |
4226 | Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf); | |
a0d0e21e LW |
4227 | if (tmp < 0) |
4228 | tmp = -tmp; | |
4229 | goto reserved_word; | |
4230 | } | |
4231 | goto just_a_word; | |
4232 | ||
463ee0b2 LW |
4233 | case KEY_abs: |
4234 | UNI(OP_ABS); | |
4235 | ||
79072805 LW |
4236 | case KEY_alarm: |
4237 | UNI(OP_ALARM); | |
4238 | ||
4239 | case KEY_accept: | |
a0d0e21e | 4240 | LOP(OP_ACCEPT,XTERM); |
79072805 | 4241 | |
463ee0b2 LW |
4242 | case KEY_and: |
4243 | OPERATOR(ANDOP); | |
4244 | ||
79072805 | 4245 | case KEY_atan2: |
a0d0e21e | 4246 | LOP(OP_ATAN2,XTERM); |
85e6fe83 | 4247 | |
79072805 | 4248 | case KEY_bind: |
a0d0e21e | 4249 | LOP(OP_BIND,XTERM); |
79072805 LW |
4250 | |
4251 | case KEY_binmode: | |
1c1fc3ea | 4252 | LOP(OP_BINMODE,XTERM); |
79072805 LW |
4253 | |
4254 | case KEY_bless: | |
a0d0e21e | 4255 | LOP(OP_BLESS,XTERM); |
79072805 LW |
4256 | |
4257 | case KEY_chop: | |
4258 | UNI(OP_CHOP); | |
4259 | ||
4260 | case KEY_continue: | |
4261 | PREBLOCK(CONTINUE); | |
4262 | ||
4263 | case KEY_chdir: | |
85e6fe83 | 4264 | (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */ |
79072805 LW |
4265 | UNI(OP_CHDIR); |
4266 | ||
4267 | case KEY_close: | |
4268 | UNI(OP_CLOSE); | |
4269 | ||
4270 | case KEY_closedir: | |
4271 | UNI(OP_CLOSEDIR); | |
4272 | ||
4273 | case KEY_cmp: | |
4274 | Eop(OP_SCMP); | |
4275 | ||
4276 | case KEY_caller: | |
4277 | UNI(OP_CALLER); | |
4278 | ||
4279 | case KEY_crypt: | |
4280 | #ifdef FCRYPT | |
f4c556ac GS |
4281 | if (!PL_cryptseen) { |
4282 | PL_cryptseen = TRUE; | |
de3bb511 | 4283 | init_des(); |
f4c556ac | 4284 | } |
a687059c | 4285 | #endif |
a0d0e21e | 4286 | LOP(OP_CRYPT,XTERM); |
79072805 LW |
4287 | |
4288 | case KEY_chmod: | |
e476b1b5 | 4289 | if (ckWARN(WARN_CHMOD)) { |
3280af22 | 4290 | for (d = s; d < PL_bufend && (isSPACE(*d) || *d == '('); d++) ; |
748a9306 | 4291 | if (*d != '0' && isDIGIT(*d)) |
e476b1b5 | 4292 | Perl_warner(aTHX_ WARN_CHMOD, |
5a211162 | 4293 | "chmod() mode argument is missing initial 0"); |
748a9306 | 4294 | } |
a0d0e21e | 4295 | LOP(OP_CHMOD,XTERM); |
79072805 LW |
4296 | |
4297 | case KEY_chown: | |
a0d0e21e | 4298 | LOP(OP_CHOWN,XTERM); |
79072805 LW |
4299 | |
4300 | case KEY_connect: | |
a0d0e21e | 4301 | LOP(OP_CONNECT,XTERM); |
79072805 | 4302 | |
463ee0b2 LW |
4303 | case KEY_chr: |
4304 | UNI(OP_CHR); | |
4305 | ||
79072805 LW |
4306 | case KEY_cos: |
4307 | UNI(OP_COS); | |
4308 | ||
4309 | case KEY_chroot: | |
4310 | UNI(OP_CHROOT); | |
4311 | ||
4312 | case KEY_do: | |
4313 | s = skipspace(s); | |
4314 | if (*s == '{') | |
a0d0e21e | 4315 | PRETERMBLOCK(DO); |
79072805 | 4316 | if (*s != '\'') |
a0d0e21e | 4317 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
378cc40b | 4318 | OPERATOR(DO); |
79072805 LW |
4319 | |
4320 | case KEY_die: | |
3280af22 | 4321 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 4322 | LOP(OP_DIE,XTERM); |
79072805 LW |
4323 | |
4324 | case KEY_defined: | |
4325 | UNI(OP_DEFINED); | |
4326 | ||
4327 | case KEY_delete: | |
a0d0e21e | 4328 | UNI(OP_DELETE); |
79072805 LW |
4329 | |
4330 | case KEY_dbmopen: | |
a0d0e21e LW |
4331 | gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV); |
4332 | LOP(OP_DBMOPEN,XTERM); | |
79072805 LW |
4333 | |
4334 | case KEY_dbmclose: | |
4335 | UNI(OP_DBMCLOSE); | |
4336 | ||
4337 | case KEY_dump: | |
a0d0e21e | 4338 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4339 | LOOPX(OP_DUMP); |
4340 | ||
4341 | case KEY_else: | |
4342 | PREBLOCK(ELSE); | |
4343 | ||
4344 | case KEY_elsif: | |
57843af0 | 4345 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4346 | OPERATOR(ELSIF); |
4347 | ||
4348 | case KEY_eq: | |
4349 | Eop(OP_SEQ); | |
4350 | ||
a0d0e21e LW |
4351 | case KEY_exists: |
4352 | UNI(OP_EXISTS); | |
4e553d73 | 4353 | |
79072805 LW |
4354 | case KEY_exit: |
4355 | UNI(OP_EXIT); | |
4356 | ||
4357 | case KEY_eval: | |
79072805 | 4358 | s = skipspace(s); |
3280af22 | 4359 | PL_expect = (*s == '{') ? XTERMBLOCK : XTERM; |
463ee0b2 | 4360 | UNIBRACK(OP_ENTEREVAL); |
79072805 LW |
4361 | |
4362 | case KEY_eof: | |
4363 | UNI(OP_EOF); | |
4364 | ||
4365 | case KEY_exp: | |
4366 | UNI(OP_EXP); | |
4367 | ||
4368 | case KEY_each: | |
4369 | UNI(OP_EACH); | |
4370 | ||
4371 | case KEY_exec: | |
4372 | set_csh(); | |
a0d0e21e | 4373 | LOP(OP_EXEC,XREF); |
79072805 LW |
4374 | |
4375 | case KEY_endhostent: | |
4376 | FUN0(OP_EHOSTENT); | |
4377 | ||
4378 | case KEY_endnetent: | |
4379 | FUN0(OP_ENETENT); | |
4380 | ||
4381 | case KEY_endservent: | |
4382 | FUN0(OP_ESERVENT); | |
4383 | ||
4384 | case KEY_endprotoent: | |
4385 | FUN0(OP_EPROTOENT); | |
4386 | ||
4387 | case KEY_endpwent: | |
4388 | FUN0(OP_EPWENT); | |
4389 | ||
4390 | case KEY_endgrent: | |
4391 | FUN0(OP_EGRENT); | |
4392 | ||
4393 | case KEY_for: | |
4394 | case KEY_foreach: | |
57843af0 | 4395 | yylval.ival = CopLINE(PL_curcop); |
55497cff | 4396 | s = skipspace(s); |
7e2040f0 | 4397 | if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) { |
55497cff | 4398 | char *p = s; |
3280af22 | 4399 | if ((PL_bufend - p) >= 3 && |
55497cff | 4400 | strnEQ(p, "my", 2) && isSPACE(*(p + 2))) |
4401 | p += 2; | |
77ca0c92 LW |
4402 | else if ((PL_bufend - p) >= 4 && |
4403 | strnEQ(p, "our", 3) && isSPACE(*(p + 3))) | |
4404 | p += 3; | |
55497cff | 4405 | p = skipspace(p); |
7e2040f0 | 4406 | if (isIDFIRST_lazy_if(p,UTF)) { |
77ca0c92 LW |
4407 | p = scan_ident(p, PL_bufend, |
4408 | PL_tokenbuf, sizeof PL_tokenbuf, TRUE); | |
4409 | p = skipspace(p); | |
4410 | } | |
4411 | if (*p != '$') | |
cea2e8a9 | 4412 | Perl_croak(aTHX_ "Missing $ on loop variable"); |
55497cff | 4413 | } |
79072805 LW |
4414 | OPERATOR(FOR); |
4415 | ||
4416 | case KEY_formline: | |
a0d0e21e | 4417 | LOP(OP_FORMLINE,XTERM); |
79072805 LW |
4418 | |
4419 | case KEY_fork: | |
4420 | FUN0(OP_FORK); | |
4421 | ||
4422 | case KEY_fcntl: | |
a0d0e21e | 4423 | LOP(OP_FCNTL,XTERM); |
79072805 LW |
4424 | |
4425 | case KEY_fileno: | |
4426 | UNI(OP_FILENO); | |
4427 | ||
4428 | case KEY_flock: | |
a0d0e21e | 4429 | LOP(OP_FLOCK,XTERM); |
79072805 LW |
4430 | |
4431 | case KEY_gt: | |
4432 | Rop(OP_SGT); | |
4433 | ||
4434 | case KEY_ge: | |
4435 | Rop(OP_SGE); | |
4436 | ||
4437 | case KEY_grep: | |
2c38e13d | 4438 | LOP(OP_GREPSTART, XREF); |
79072805 LW |
4439 | |
4440 | case KEY_goto: | |
a0d0e21e | 4441 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4442 | LOOPX(OP_GOTO); |
4443 | ||
4444 | case KEY_gmtime: | |
4445 | UNI(OP_GMTIME); | |
4446 | ||
4447 | case KEY_getc: | |
4448 | UNI(OP_GETC); | |
4449 | ||
4450 | case KEY_getppid: | |
4451 | FUN0(OP_GETPPID); | |
4452 | ||
4453 | case KEY_getpgrp: | |
4454 | UNI(OP_GETPGRP); | |
4455 | ||
4456 | case KEY_getpriority: | |
a0d0e21e | 4457 | LOP(OP_GETPRIORITY,XTERM); |
79072805 LW |
4458 | |
4459 | case KEY_getprotobyname: | |
4460 | UNI(OP_GPBYNAME); | |
4461 | ||
4462 | case KEY_getprotobynumber: | |
a0d0e21e | 4463 | LOP(OP_GPBYNUMBER,XTERM); |
79072805 LW |
4464 | |
4465 | case KEY_getprotoent: | |
4466 | FUN0(OP_GPROTOENT); | |
4467 | ||
4468 | case KEY_getpwent: | |
4469 | FUN0(OP_GPWENT); | |
4470 | ||
4471 | case KEY_getpwnam: | |
ff68c719 | 4472 | UNI(OP_GPWNAM); |
79072805 LW |
4473 | |
4474 | case KEY_getpwuid: | |
ff68c719 | 4475 | UNI(OP_GPWUID); |
79072805 LW |
4476 | |
4477 | case KEY_getpeername: | |
4478 | UNI(OP_GETPEERNAME); | |
4479 | ||
4480 | case KEY_gethostbyname: | |
4481 | UNI(OP_GHBYNAME); | |
4482 | ||
4483 | case KEY_gethostbyaddr: | |
a0d0e21e | 4484 | LOP(OP_GHBYADDR,XTERM); |
79072805 LW |
4485 | |
4486 | case KEY_gethostent: | |
4487 | FUN0(OP_GHOSTENT); | |
4488 | ||
4489 | case KEY_getnetbyname: | |
4490 | UNI(OP_GNBYNAME); | |
4491 | ||
4492 | case KEY_getnetbyaddr: | |
a0d0e21e | 4493 | LOP(OP_GNBYADDR,XTERM); |
79072805 LW |
4494 | |
4495 | case KEY_getnetent: | |
4496 | FUN0(OP_GNETENT); | |
4497 | ||
4498 | case KEY_getservbyname: | |
a0d0e21e | 4499 | LOP(OP_GSBYNAME,XTERM); |
79072805 LW |
4500 | |
4501 | case KEY_getservbyport: | |
a0d0e21e | 4502 | LOP(OP_GSBYPORT,XTERM); |
79072805 LW |
4503 | |
4504 | case KEY_getservent: | |
4505 | FUN0(OP_GSERVENT); | |
4506 | ||
4507 | case KEY_getsockname: | |
4508 | UNI(OP_GETSOCKNAME); | |
4509 | ||
4510 | case KEY_getsockopt: | |
a0d0e21e | 4511 | LOP(OP_GSOCKOPT,XTERM); |
79072805 LW |
4512 | |
4513 | case KEY_getgrent: | |
4514 | FUN0(OP_GGRENT); | |
4515 | ||
4516 | case KEY_getgrnam: | |
ff68c719 | 4517 | UNI(OP_GGRNAM); |
79072805 LW |
4518 | |
4519 | case KEY_getgrgid: | |
ff68c719 | 4520 | UNI(OP_GGRGID); |
79072805 LW |
4521 | |
4522 | case KEY_getlogin: | |
4523 | FUN0(OP_GETLOGIN); | |
4524 | ||
93a17b20 | 4525 | case KEY_glob: |
a0d0e21e LW |
4526 | set_csh(); |
4527 | LOP(OP_GLOB,XTERM); | |
93a17b20 | 4528 | |
79072805 LW |
4529 | case KEY_hex: |
4530 | UNI(OP_HEX); | |
4531 | ||
4532 | case KEY_if: | |
57843af0 | 4533 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
4534 | OPERATOR(IF); |
4535 | ||
4536 | case KEY_index: | |
a0d0e21e | 4537 | LOP(OP_INDEX,XTERM); |
79072805 LW |
4538 | |
4539 | case KEY_int: | |
4540 | UNI(OP_INT); | |
4541 | ||
4542 | case KEY_ioctl: | |
a0d0e21e | 4543 | LOP(OP_IOCTL,XTERM); |
79072805 LW |
4544 | |
4545 | case KEY_join: | |
a0d0e21e | 4546 | LOP(OP_JOIN,XTERM); |
79072805 LW |
4547 | |
4548 | case KEY_keys: | |
4549 | UNI(OP_KEYS); | |
4550 | ||
4551 | case KEY_kill: | |
a0d0e21e | 4552 | LOP(OP_KILL,XTERM); |
79072805 LW |
4553 | |
4554 | case KEY_last: | |
a0d0e21e | 4555 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 | 4556 | LOOPX(OP_LAST); |
4e553d73 | 4557 | |
79072805 LW |
4558 | case KEY_lc: |
4559 | UNI(OP_LC); | |
4560 | ||
4561 | case KEY_lcfirst: | |
4562 | UNI(OP_LCFIRST); | |
4563 | ||
4564 | case KEY_local: | |
09bef843 | 4565 | yylval.ival = 0; |
79072805 LW |
4566 | OPERATOR(LOCAL); |
4567 | ||
4568 | case KEY_length: | |
4569 | UNI(OP_LENGTH); | |
4570 | ||
4571 | case KEY_lt: | |
4572 | Rop(OP_SLT); | |
4573 | ||
4574 | case KEY_le: | |
4575 | Rop(OP_SLE); | |
4576 | ||
4577 | case KEY_localtime: | |
4578 | UNI(OP_LOCALTIME); | |
4579 | ||
4580 | case KEY_log: | |
4581 | UNI(OP_LOG); | |
4582 | ||
4583 | case KEY_link: | |
a0d0e21e | 4584 | LOP(OP_LINK,XTERM); |
79072805 LW |
4585 | |
4586 | case KEY_listen: | |
a0d0e21e | 4587 | LOP(OP_LISTEN,XTERM); |
79072805 | 4588 | |
c0329465 MB |
4589 | case KEY_lock: |
4590 | UNI(OP_LOCK); | |
4591 | ||
79072805 LW |
4592 | case KEY_lstat: |
4593 | UNI(OP_LSTAT); | |
4594 | ||
4595 | case KEY_m: | |
8782bef2 | 4596 | s = scan_pat(s,OP_MATCH); |
79072805 LW |
4597 | TERM(sublex_start()); |
4598 | ||
a0d0e21e | 4599 | case KEY_map: |
2c38e13d | 4600 | LOP(OP_MAPSTART, XREF); |
4e4e412b | 4601 | |
79072805 | 4602 | case KEY_mkdir: |
a0d0e21e | 4603 | LOP(OP_MKDIR,XTERM); |
79072805 LW |
4604 | |
4605 | case KEY_msgctl: | |
a0d0e21e | 4606 | LOP(OP_MSGCTL,XTERM); |
79072805 LW |
4607 | |
4608 | case KEY_msgget: | |
a0d0e21e | 4609 | LOP(OP_MSGGET,XTERM); |
79072805 LW |
4610 | |
4611 | case KEY_msgrcv: | |
a0d0e21e | 4612 | LOP(OP_MSGRCV,XTERM); |
79072805 LW |
4613 | |
4614 | case KEY_msgsnd: | |
a0d0e21e | 4615 | LOP(OP_MSGSND,XTERM); |
79072805 | 4616 | |
77ca0c92 | 4617 | case KEY_our: |
93a17b20 | 4618 | case KEY_my: |
77ca0c92 | 4619 | PL_in_my = tmp; |
c750a3ec | 4620 | s = skipspace(s); |
7e2040f0 | 4621 | if (isIDFIRST_lazy_if(s,UTF)) { |
3280af22 | 4622 | s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len); |
09bef843 SB |
4623 | if (len == 3 && strnEQ(PL_tokenbuf, "sub", 3)) |
4624 | goto really_sub; | |
def3634b | 4625 | PL_in_my_stash = find_in_my_stash(PL_tokenbuf, len); |
3280af22 | 4626 | if (!PL_in_my_stash) { |
c750a3ec | 4627 | char tmpbuf[1024]; |
3280af22 NIS |
4628 | PL_bufptr = s; |
4629 | sprintf(tmpbuf, "No such class %.1000s", PL_tokenbuf); | |
c750a3ec MB |
4630 | yyerror(tmpbuf); |
4631 | } | |
4632 | } | |
09bef843 | 4633 | yylval.ival = 1; |
55497cff | 4634 | OPERATOR(MY); |
93a17b20 | 4635 | |
79072805 | 4636 | case KEY_next: |
a0d0e21e | 4637 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4638 | LOOPX(OP_NEXT); |
4639 | ||
4640 | case KEY_ne: | |
4641 | Eop(OP_SNE); | |
4642 | ||
a0d0e21e | 4643 | case KEY_no: |
3280af22 | 4644 | if (PL_expect != XSTATE) |
a0d0e21e LW |
4645 | yyerror("\"no\" not allowed in expression"); |
4646 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
89bfa8cd | 4647 | s = force_version(s); |
a0d0e21e LW |
4648 | yylval.ival = 0; |
4649 | OPERATOR(USE); | |
4650 | ||
4651 | case KEY_not: | |
2d2e263d LW |
4652 | if (*s == '(' || (s = skipspace(s), *s == '(')) |
4653 | FUN1(OP_NOT); | |
4654 | else | |
4655 | OPERATOR(NOTOP); | |
a0d0e21e | 4656 | |
79072805 | 4657 | case KEY_open: |
93a17b20 | 4658 | s = skipspace(s); |
7e2040f0 | 4659 | if (isIDFIRST_lazy_if(s,UTF)) { |
93a17b20 | 4660 | char *t; |
7e2040f0 | 4661 | for (d = s; isALNUM_lazy_if(d,UTF); d++) ; |
93a17b20 | 4662 | t = skipspace(d); |
e476b1b5 GS |
4663 | if (strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE)) |
4664 | Perl_warner(aTHX_ WARN_PRECEDENCE, | |
0453d815 PM |
4665 | "Precedence problem: open %.*s should be open(%.*s)", |
4666 | d-s,s, d-s,s); | |
93a17b20 | 4667 | } |
a0d0e21e | 4668 | LOP(OP_OPEN,XTERM); |
79072805 | 4669 | |
463ee0b2 | 4670 | case KEY_or: |
a0d0e21e | 4671 | yylval.ival = OP_OR; |
463ee0b2 LW |
4672 | OPERATOR(OROP); |
4673 | ||
79072805 LW |
4674 | case KEY_ord: |
4675 | UNI(OP_ORD); | |
4676 | ||
4677 | case KEY_oct: | |
4678 | UNI(OP_OCT); | |
4679 | ||
4680 | case KEY_opendir: | |
a0d0e21e | 4681 | LOP(OP_OPEN_DIR,XTERM); |
79072805 LW |
4682 | |
4683 | case KEY_print: | |
3280af22 | 4684 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 4685 | LOP(OP_PRINT,XREF); |
79072805 LW |
4686 | |
4687 | case KEY_printf: | |
3280af22 | 4688 | checkcomma(s,PL_tokenbuf,"filehandle"); |
a0d0e21e | 4689 | LOP(OP_PRTF,XREF); |
79072805 | 4690 | |
c07a80fd | 4691 | case KEY_prototype: |
4692 | UNI(OP_PROTOTYPE); | |
4693 | ||
79072805 | 4694 | case KEY_push: |
a0d0e21e | 4695 | LOP(OP_PUSH,XTERM); |
79072805 LW |
4696 | |
4697 | case KEY_pop: | |
4698 | UNI(OP_POP); | |
4699 | ||
a0d0e21e LW |
4700 | case KEY_pos: |
4701 | UNI(OP_POS); | |
4e553d73 | 4702 | |
79072805 | 4703 | case KEY_pack: |
a0d0e21e | 4704 | LOP(OP_PACK,XTERM); |
79072805 LW |
4705 | |
4706 | case KEY_package: | |
a0d0e21e | 4707 | s = force_word(s,WORD,FALSE,TRUE,FALSE); |
79072805 LW |
4708 | OPERATOR(PACKAGE); |
4709 | ||
4710 | case KEY_pipe: | |
a0d0e21e | 4711 | LOP(OP_PIPE_OP,XTERM); |
79072805 LW |
4712 | |
4713 | case KEY_q: | |
09bef843 | 4714 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4715 | if (!s) |
85e6fe83 | 4716 | missingterm((char*)0); |
79072805 LW |
4717 | yylval.ival = OP_CONST; |
4718 | TERM(sublex_start()); | |
4719 | ||
a0d0e21e LW |
4720 | case KEY_quotemeta: |
4721 | UNI(OP_QUOTEMETA); | |
4722 | ||
8990e307 | 4723 | case KEY_qw: |
09bef843 | 4724 | s = scan_str(s,FALSE,FALSE); |
8990e307 | 4725 | if (!s) |
85e6fe83 | 4726 | missingterm((char*)0); |
8127e0e3 GS |
4727 | force_next(')'); |
4728 | if (SvCUR(PL_lex_stuff)) { | |
4729 | OP *words = Nullop; | |
4730 | int warned = 0; | |
3280af22 | 4731 | d = SvPV_force(PL_lex_stuff, len); |
8127e0e3 | 4732 | while (len) { |
7948272d | 4733 | SV *sv; |
8127e0e3 GS |
4734 | for (; isSPACE(*d) && len; --len, ++d) ; |
4735 | if (len) { | |
4736 | char *b = d; | |
e476b1b5 | 4737 | if (!warned && ckWARN(WARN_QW)) { |
8127e0e3 GS |
4738 | for (; !isSPACE(*d) && len; --len, ++d) { |
4739 | if (*d == ',') { | |
e476b1b5 | 4740 | Perl_warner(aTHX_ WARN_QW, |
8127e0e3 GS |
4741 | "Possible attempt to separate words with commas"); |
4742 | ++warned; | |
4743 | } | |
4744 | else if (*d == '#') { | |
e476b1b5 | 4745 | Perl_warner(aTHX_ WARN_QW, |
8127e0e3 GS |
4746 | "Possible attempt to put comments in qw() list"); |
4747 | ++warned; | |
4748 | } | |
4749 | } | |
4750 | } | |
4751 | else { | |
4752 | for (; !isSPACE(*d) && len; --len, ++d) ; | |
4753 | } | |
7948272d NIS |
4754 | sv = newSVpvn(b, d-b); |
4755 | if (DO_UTF8(PL_lex_stuff)) | |
4756 | SvUTF8_on(sv); | |
8127e0e3 | 4757 | words = append_elem(OP_LIST, words, |
7948272d | 4758 | newSVOP(OP_CONST, 0, tokeq(sv))); |
55497cff | 4759 | } |
4760 | } | |
8127e0e3 GS |
4761 | if (words) { |
4762 | PL_nextval[PL_nexttoke].opval = words; | |
4763 | force_next(THING); | |
4764 | } | |
55497cff | 4765 | } |
37fd879b | 4766 | if (PL_lex_stuff) { |
8127e0e3 | 4767 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
4768 | PL_lex_stuff = Nullsv; |
4769 | } | |
3280af22 | 4770 | PL_expect = XTERM; |
8127e0e3 | 4771 | TOKEN('('); |
8990e307 | 4772 | |
79072805 | 4773 | case KEY_qq: |
09bef843 | 4774 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4775 | if (!s) |
85e6fe83 | 4776 | missingterm((char*)0); |
a0d0e21e | 4777 | yylval.ival = OP_STRINGIFY; |
3280af22 NIS |
4778 | if (SvIVX(PL_lex_stuff) == '\'') |
4779 | SvIVX(PL_lex_stuff) = 0; /* qq'$foo' should intepolate */ | |
79072805 LW |
4780 | TERM(sublex_start()); |
4781 | ||
8782bef2 GB |
4782 | case KEY_qr: |
4783 | s = scan_pat(s,OP_QR); | |
4784 | TERM(sublex_start()); | |
4785 | ||
79072805 | 4786 | case KEY_qx: |
09bef843 | 4787 | s = scan_str(s,FALSE,FALSE); |
79072805 | 4788 | if (!s) |
85e6fe83 | 4789 | missingterm((char*)0); |
79072805 LW |
4790 | yylval.ival = OP_BACKTICK; |
4791 | set_csh(); | |
4792 | TERM(sublex_start()); | |
4793 | ||
4794 | case KEY_return: | |
4795 | OLDLOP(OP_RETURN); | |
4796 | ||
4797 | case KEY_require: | |
a7cb1f99 GS |
4798 | s = skipspace(s); |
4799 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { | |
4800 | s = force_version(s); | |
4801 | } | |
4802 | else { | |
4803 | *PL_tokenbuf = '\0'; | |
4804 | s = force_word(s,WORD,TRUE,TRUE,FALSE); | |
7e2040f0 | 4805 | if (isIDFIRST_lazy_if(PL_tokenbuf,UTF)) |
a7cb1f99 GS |
4806 | gv_stashpvn(PL_tokenbuf, strlen(PL_tokenbuf), TRUE); |
4807 | else if (*s == '<') | |
4808 | yyerror("<> should be quotes"); | |
4809 | } | |
463ee0b2 | 4810 | UNI(OP_REQUIRE); |
79072805 LW |
4811 | |
4812 | case KEY_reset: | |
4813 | UNI(OP_RESET); | |
4814 | ||
4815 | case KEY_redo: | |
a0d0e21e | 4816 | s = force_word(s,WORD,TRUE,FALSE,FALSE); |
79072805 LW |
4817 | LOOPX(OP_REDO); |
4818 | ||
4819 | case KEY_rename: | |
a0d0e21e | 4820 | LOP(OP_RENAME,XTERM); |
79072805 LW |
4821 | |
4822 | case KEY_rand: | |
4823 | UNI(OP_RAND); | |
4824 | ||
4825 | case KEY_rmdir: | |
4826 | UNI(OP_RMDIR); | |
4827 | ||
4828 | case KEY_rindex: | |
a0d0e21e | 4829 | LOP(OP_RINDEX,XTERM); |
79072805 LW |
4830 | |
4831 | case KEY_read: | |
a0d0e21e | 4832 | LOP(OP_READ,XTERM); |
79072805 LW |
4833 | |
4834 | case KEY_readdir: | |
4835 | UNI(OP_READDIR); | |
4836 | ||
93a17b20 LW |
4837 | case KEY_readline: |
4838 | set_csh(); | |
4839 | UNI(OP_READLINE); | |
4840 | ||
4841 | case KEY_readpipe: | |
4842 | set_csh(); | |
4843 | UNI(OP_BACKTICK); | |
4844 | ||
79072805 LW |
4845 | case KEY_rewinddir: |
4846 | UNI(OP_REWINDDIR); | |
4847 | ||
4848 | case KEY_recv: | |
a0d0e21e | 4849 | LOP(OP_RECV,XTERM); |
79072805 LW |
4850 | |
4851 | case KEY_reverse: | |
a0d0e21e | 4852 | LOP(OP_REVERSE,XTERM); |
79072805 LW |
4853 | |
4854 | case KEY_readlink: | |
4855 | UNI(OP_READLINK); | |
4856 | ||
4857 | case KEY_ref: | |
4858 | UNI(OP_REF); | |
4859 | ||
4860 | case KEY_s: | |
4861 | s = scan_subst(s); | |
4862 | if (yylval.opval) | |
4863 | TERM(sublex_start()); | |
4864 | else | |
4865 | TOKEN(1); /* force error */ | |
4866 | ||
a0d0e21e LW |
4867 | case KEY_chomp: |
4868 | UNI(OP_CHOMP); | |
4e553d73 | 4869 | |
79072805 LW |
4870 | case KEY_scalar: |
4871 | UNI(OP_SCALAR); | |
4872 | ||
4873 | case KEY_select: | |
a0d0e21e | 4874 | LOP(OP_SELECT,XTERM); |
79072805 LW |
4875 | |
4876 | case KEY_seek: | |
a0d0e21e | 4877 | LOP(OP_SEEK,XTERM); |
79072805 LW |
4878 | |
4879 | case KEY_semctl: | |
a0d0e21e | 4880 | LOP(OP_SEMCTL,XTERM); |
79072805 LW |
4881 | |
4882 | case KEY_semget: | |
a0d0e21e | 4883 | LOP(OP_SEMGET,XTERM); |
79072805 LW |
4884 | |
4885 | case KEY_semop: | |
a0d0e21e | 4886 | LOP(OP_SEMOP,XTERM); |
79072805 LW |
4887 | |
4888 | case KEY_send: | |
a0d0e21e | 4889 | LOP(OP_SEND,XTERM); |
79072805 LW |
4890 | |
4891 | case KEY_setpgrp: | |
a0d0e21e | 4892 | LOP(OP_SETPGRP,XTERM); |
79072805 LW |
4893 | |
4894 | case KEY_setpriority: | |
a0d0e21e | 4895 | LOP(OP_SETPRIORITY,XTERM); |
79072805 LW |
4896 | |
4897 | case KEY_sethostent: | |
ff68c719 | 4898 | UNI(OP_SHOSTENT); |
79072805 LW |
4899 | |
4900 | case KEY_setnetent: | |
ff68c719 | 4901 | UNI(OP_SNETENT); |
79072805 LW |
4902 | |
4903 | case KEY_setservent: | |
ff68c719 | 4904 | UNI(OP_SSERVENT); |
79072805 LW |
4905 | |
4906 | case KEY_setprotoent: | |
ff68c719 | 4907 | UNI(OP_SPROTOENT); |
79072805 LW |
4908 | |
4909 | case KEY_setpwent: | |
4910 | FUN0(OP_SPWENT); | |
4911 | ||
4912 | case KEY_setgrent: | |
4913 | FUN0(OP_SGRENT); | |
4914 | ||
4915 | case KEY_seekdir: | |
a0d0e21e | 4916 | LOP(OP_SEEKDIR,XTERM); |
79072805 LW |
4917 | |
4918 | case KEY_setsockopt: | |
a0d0e21e | 4919 | LOP(OP_SSOCKOPT,XTERM); |
79072805 LW |
4920 | |
4921 | case KEY_shift: | |
4922 | UNI(OP_SHIFT); | |
4923 | ||
4924 | case KEY_shmctl: | |
a0d0e21e | 4925 | LOP(OP_SHMCTL,XTERM); |
79072805 LW |
4926 | |
4927 | case KEY_shmget: | |
a0d0e21e | 4928 | LOP(OP_SHMGET,XTERM); |
79072805 LW |
4929 | |
4930 | case KEY_shmread: | |
a0d0e21e | 4931 | LOP(OP_SHMREAD,XTERM); |
79072805 LW |
4932 | |
4933 | case KEY_shmwrite: | |
a0d0e21e | 4934 | LOP(OP_SHMWRITE,XTERM); |
79072805 LW |
4935 | |
4936 | case KEY_shutdown: | |
a0d0e21e | 4937 | LOP(OP_SHUTDOWN,XTERM); |
79072805 LW |
4938 | |
4939 | case KEY_sin: | |
4940 | UNI(OP_SIN); | |
4941 | ||
4942 | case KEY_sleep: | |
4943 | UNI(OP_SLEEP); | |
4944 | ||
4945 | case KEY_socket: | |
a0d0e21e | 4946 | LOP(OP_SOCKET,XTERM); |
79072805 LW |
4947 | |
4948 | case KEY_socketpair: | |
a0d0e21e | 4949 | LOP(OP_SOCKPAIR,XTERM); |
79072805 LW |
4950 | |
4951 | case KEY_sort: | |
3280af22 | 4952 | checkcomma(s,PL_tokenbuf,"subroutine name"); |
79072805 LW |
4953 | s = skipspace(s); |
4954 | if (*s == ';' || *s == ')') /* probably a close */ | |
cea2e8a9 | 4955 | Perl_croak(aTHX_ "sort is now a reserved word"); |
3280af22 | 4956 | PL_expect = XTERM; |
15f0808c | 4957 | s = force_word(s,WORD,TRUE,TRUE,FALSE); |
a0d0e21e | 4958 | LOP(OP_SORT,XREF); |
79072805 LW |
4959 | |
4960 | case KEY_split: | |
a0d0e21e | 4961 | LOP(OP_SPLIT,XTERM); |
79072805 LW |
4962 | |
4963 | case KEY_sprintf: | |
a0d0e21e | 4964 | LOP(OP_SPRINTF,XTERM); |
79072805 LW |
4965 | |
4966 | case KEY_splice: | |
a0d0e21e | 4967 | LOP(OP_SPLICE,XTERM); |
79072805 LW |
4968 | |
4969 | case KEY_sqrt: | |
4970 | UNI(OP_SQRT); | |
4971 | ||
4972 | case KEY_srand: | |
4973 | UNI(OP_SRAND); | |
4974 | ||
4975 | case KEY_stat: | |
4976 | UNI(OP_STAT); | |
4977 | ||
4978 | case KEY_study: | |
79072805 LW |
4979 | UNI(OP_STUDY); |
4980 | ||
4981 | case KEY_substr: | |
a0d0e21e | 4982 | LOP(OP_SUBSTR,XTERM); |
79072805 LW |
4983 | |
4984 | case KEY_format: | |
4985 | case KEY_sub: | |
93a17b20 | 4986 | really_sub: |
09bef843 | 4987 | { |
3280af22 | 4988 | char tmpbuf[sizeof PL_tokenbuf]; |
b1b65b59 | 4989 | SSize_t tboffset; |
09bef843 SB |
4990 | expectation attrful; |
4991 | bool have_name, have_proto; | |
4992 | int key = tmp; | |
4993 | ||
4994 | s = skipspace(s); | |
4995 | ||
7e2040f0 | 4996 | if (isIDFIRST_lazy_if(s,UTF) || *s == '\'' || |
09bef843 SB |
4997 | (*s == ':' && s[1] == ':')) |
4998 | { | |
4999 | PL_expect = XBLOCK; | |
5000 | attrful = XATTRBLOCK; | |
b1b65b59 JH |
5001 | /* remember buffer pos'n for later force_word */ |
5002 | tboffset = s - PL_oldbufptr; | |
09bef843 SB |
5003 | d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len); |
5004 | if (strchr(tmpbuf, ':')) | |
5005 | sv_setpv(PL_subname, tmpbuf); | |
5006 | else { | |
5007 | sv_setsv(PL_subname,PL_curstname); | |
5008 | sv_catpvn(PL_subname,"::",2); | |
5009 | sv_catpvn(PL_subname,tmpbuf,len); | |
5010 | } | |
5011 | s = skipspace(d); | |
5012 | have_name = TRUE; | |
5013 | } | |
463ee0b2 | 5014 | else { |
09bef843 SB |
5015 | if (key == KEY_my) |
5016 | Perl_croak(aTHX_ "Missing name in \"my sub\""); | |
5017 | PL_expect = XTERMBLOCK; | |
5018 | attrful = XATTRTERM; | |
5019 | sv_setpv(PL_subname,"?"); | |
5020 | have_name = FALSE; | |
463ee0b2 | 5021 | } |
4633a7c4 | 5022 | |
09bef843 SB |
5023 | if (key == KEY_format) { |
5024 | if (*s == '=') | |
5025 | PL_lex_formbrack = PL_lex_brackets + 1; | |
5026 | if (have_name) | |
b1b65b59 JH |
5027 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5028 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5029 | OPERATOR(FORMAT); |
5030 | } | |
79072805 | 5031 | |
09bef843 SB |
5032 | /* Look for a prototype */ |
5033 | if (*s == '(') { | |
5034 | char *p; | |
5035 | ||
5036 | s = scan_str(s,FALSE,FALSE); | |
37fd879b | 5037 | if (!s) |
09bef843 | 5038 | Perl_croak(aTHX_ "Prototype not terminated"); |
09bef843 SB |
5039 | /* strip spaces */ |
5040 | d = SvPVX(PL_lex_stuff); | |
5041 | tmp = 0; | |
5042 | for (p = d; *p; ++p) { | |
5043 | if (!isSPACE(*p)) | |
5044 | d[tmp++] = *p; | |
5045 | } | |
5046 | d[tmp] = '\0'; | |
5047 | SvCUR(PL_lex_stuff) = tmp; | |
5048 | have_proto = TRUE; | |
68dc0745 | 5049 | |
09bef843 | 5050 | s = skipspace(s); |
4633a7c4 | 5051 | } |
09bef843 SB |
5052 | else |
5053 | have_proto = FALSE; | |
5054 | ||
5055 | if (*s == ':' && s[1] != ':') | |
5056 | PL_expect = attrful; | |
5057 | ||
5058 | if (have_proto) { | |
b1b65b59 JH |
5059 | PL_nextval[PL_nexttoke].opval = |
5060 | (OP*)newSVOP(OP_CONST, 0, PL_lex_stuff); | |
09bef843 SB |
5061 | PL_lex_stuff = Nullsv; |
5062 | force_next(THING); | |
68dc0745 | 5063 | } |
09bef843 SB |
5064 | if (!have_name) { |
5065 | sv_setpv(PL_subname,"__ANON__"); | |
5066 | TOKEN(ANONSUB); | |
4633a7c4 | 5067 | } |
b1b65b59 JH |
5068 | (void) force_word(PL_oldbufptr + tboffset, WORD, |
5069 | FALSE, TRUE, TRUE); | |
09bef843 SB |
5070 | if (key == KEY_my) |
5071 | TOKEN(MYSUB); | |
5072 | TOKEN(SUB); | |
4633a7c4 | 5073 | } |
79072805 LW |
5074 | |
5075 | case KEY_system: | |
5076 | set_csh(); | |
a0d0e21e | 5077 | LOP(OP_SYSTEM,XREF); |
79072805 LW |
5078 | |
5079 | case KEY_symlink: | |
a0d0e21e | 5080 | LOP(OP_SYMLINK,XTERM); |
79072805 LW |
5081 | |
5082 | case KEY_syscall: | |
a0d0e21e | 5083 | LOP(OP_SYSCALL,XTERM); |
79072805 | 5084 | |
c07a80fd | 5085 | case KEY_sysopen: |
5086 | LOP(OP_SYSOPEN,XTERM); | |
5087 | ||
137443ea | 5088 | case KEY_sysseek: |
5089 | LOP(OP_SYSSEEK,XTERM); | |
5090 | ||
79072805 | 5091 | case KEY_sysread: |
a0d0e21e | 5092 | LOP(OP_SYSREAD,XTERM); |
79072805 LW |
5093 | |
5094 | case KEY_syswrite: | |
a0d0e21e | 5095 | LOP(OP_SYSWRITE,XTERM); |
79072805 LW |
5096 | |
5097 | case KEY_tr: | |
5098 | s = scan_trans(s); | |
5099 | TERM(sublex_start()); | |
5100 | ||
5101 | case KEY_tell: | |
5102 | UNI(OP_TELL); | |
5103 | ||
5104 | case KEY_telldir: | |
5105 | UNI(OP_TELLDIR); | |
5106 | ||
463ee0b2 | 5107 | case KEY_tie: |
a0d0e21e | 5108 | LOP(OP_TIE,XTERM); |
463ee0b2 | 5109 | |
c07a80fd | 5110 | case KEY_tied: |
5111 | UNI(OP_TIED); | |
5112 | ||
79072805 LW |
5113 | case KEY_time: |
5114 | FUN0(OP_TIME); | |
5115 | ||
5116 | case KEY_times: | |
5117 | FUN0(OP_TMS); | |
5118 | ||
5119 | case KEY_truncate: | |
a0d0e21e | 5120 | LOP(OP_TRUNCATE,XTERM); |
79072805 LW |
5121 | |
5122 | case KEY_uc: | |
5123 | UNI(OP_UC); | |
5124 | ||
5125 | case KEY_ucfirst: | |
5126 | UNI(OP_UCFIRST); | |
5127 | ||
463ee0b2 LW |
5128 | case KEY_untie: |
5129 | UNI(OP_UNTIE); | |
5130 | ||
79072805 | 5131 | case KEY_until: |
57843af0 | 5132 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5133 | OPERATOR(UNTIL); |
5134 | ||
5135 | case KEY_unless: | |
57843af0 | 5136 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5137 | OPERATOR(UNLESS); |
5138 | ||
5139 | case KEY_unlink: | |
a0d0e21e | 5140 | LOP(OP_UNLINK,XTERM); |
79072805 LW |
5141 | |
5142 | case KEY_undef: | |
5143 | UNI(OP_UNDEF); | |
5144 | ||
5145 | case KEY_unpack: | |
a0d0e21e | 5146 | LOP(OP_UNPACK,XTERM); |
79072805 LW |
5147 | |
5148 | case KEY_utime: | |
a0d0e21e | 5149 | LOP(OP_UTIME,XTERM); |
79072805 LW |
5150 | |
5151 | case KEY_umask: | |
e476b1b5 | 5152 | if (ckWARN(WARN_UMASK)) { |
3280af22 | 5153 | for (d = s; d < PL_bufend && (isSPACE(*d) || *d == '('); d++) ; |
4e553d73 | 5154 | if (*d != '0' && isDIGIT(*d)) |
e476b1b5 | 5155 | Perl_warner(aTHX_ WARN_UMASK, |
4438c4b7 | 5156 | "umask: argument is missing initial 0"); |
748a9306 | 5157 | } |
79072805 LW |
5158 | UNI(OP_UMASK); |
5159 | ||
5160 | case KEY_unshift: | |
a0d0e21e LW |
5161 | LOP(OP_UNSHIFT,XTERM); |
5162 | ||
5163 | case KEY_use: | |
3280af22 | 5164 | if (PL_expect != XSTATE) |
a0d0e21e | 5165 | yyerror("\"use\" not allowed in expression"); |
89bfa8cd | 5166 | s = skipspace(s); |
a7cb1f99 | 5167 | if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) { |
89bfa8cd | 5168 | s = force_version(s); |
a7cb1f99 | 5169 | if (*s == ';' || (s = skipspace(s), *s == ';')) { |
3280af22 | 5170 | PL_nextval[PL_nexttoke].opval = Nullop; |
89bfa8cd | 5171 | force_next(WORD); |
5172 | } | |
5173 | } | |
5174 | else { | |
5175 | s = force_word(s,WORD,FALSE,TRUE,FALSE); | |
5176 | s = force_version(s); | |
5177 | } | |
a0d0e21e LW |
5178 | yylval.ival = 1; |
5179 | OPERATOR(USE); | |
79072805 LW |
5180 | |
5181 | case KEY_values: | |
5182 | UNI(OP_VALUES); | |
5183 | ||
5184 | case KEY_vec: | |
a0d0e21e | 5185 | LOP(OP_VEC,XTERM); |
79072805 LW |
5186 | |
5187 | case KEY_while: | |
57843af0 | 5188 | yylval.ival = CopLINE(PL_curcop); |
79072805 LW |
5189 | OPERATOR(WHILE); |
5190 | ||
5191 | case KEY_warn: | |
3280af22 | 5192 | PL_hints |= HINT_BLOCK_SCOPE; |
a0d0e21e | 5193 | LOP(OP_WARN,XTERM); |
79072805 LW |
5194 | |
5195 | case KEY_wait: | |
5196 | FUN0(OP_WAIT); | |
5197 | ||
5198 | case KEY_waitpid: | |
a0d0e21e | 5199 | LOP(OP_WAITPID,XTERM); |
79072805 LW |
5200 | |
5201 | case KEY_wantarray: | |
5202 | FUN0(OP_WANTARRAY); | |
5203 | ||
5204 | case KEY_write: | |
9d116dd7 JH |
5205 | #ifdef EBCDIC |
5206 | { | |
5207 | static char ctl_l[2]; | |
5208 | ||
4e553d73 | 5209 | if (ctl_l[0] == '\0') |
9d116dd7 JH |
5210 | ctl_l[0] = toCTRL('L'); |
5211 | gv_fetchpv(ctl_l,TRUE, SVt_PV); | |
5212 | } | |
5213 | #else | |
5214 | gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */ | |
5215 | #endif | |
79072805 LW |
5216 | UNI(OP_ENTERWRITE); |
5217 | ||
5218 | case KEY_x: | |
3280af22 | 5219 | if (PL_expect == XOPERATOR) |
79072805 LW |
5220 | Mop(OP_REPEAT); |
5221 | check_uni(); | |
5222 | goto just_a_word; | |
5223 | ||
a0d0e21e LW |
5224 | case KEY_xor: |
5225 | yylval.ival = OP_XOR; | |
5226 | OPERATOR(OROP); | |
5227 | ||
79072805 LW |
5228 | case KEY_y: |
5229 | s = scan_trans(s); | |
5230 | TERM(sublex_start()); | |
5231 | } | |
49dc05e3 | 5232 | }} |
79072805 | 5233 | } |
bf4acbe4 GS |
5234 | #ifdef __SC__ |
5235 | #pragma segment Main | |
5236 | #endif | |
79072805 LW |
5237 | |
5238 | I32 | |
864dbfa3 | 5239 | Perl_keyword(pTHX_ register char *d, I32 len) |
79072805 LW |
5240 | { |
5241 | switch (*d) { | |
5242 | case '_': | |
5243 | if (d[1] == '_') { | |
a0d0e21e | 5244 | if (strEQ(d,"__FILE__")) return -KEY___FILE__; |
68dc0745 | 5245 | if (strEQ(d,"__LINE__")) return -KEY___LINE__; |
5246 | if (strEQ(d,"__PACKAGE__")) return -KEY___PACKAGE__; | |
e50aee73 | 5247 | if (strEQ(d,"__DATA__")) return KEY___DATA__; |
79072805 LW |
5248 | if (strEQ(d,"__END__")) return KEY___END__; |
5249 | } | |
5250 | break; | |
8990e307 LW |
5251 | case 'A': |
5252 | if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD; | |
5253 | break; | |
79072805 | 5254 | case 'a': |
463ee0b2 LW |
5255 | switch (len) { |
5256 | case 3: | |
a0d0e21e LW |
5257 | if (strEQ(d,"and")) return -KEY_and; |
5258 | if (strEQ(d,"abs")) return -KEY_abs; | |
85e6fe83 | 5259 | break; |
463ee0b2 | 5260 | case 5: |
a0d0e21e LW |
5261 | if (strEQ(d,"alarm")) return -KEY_alarm; |
5262 | if (strEQ(d,"atan2")) return -KEY_atan2; | |
463ee0b2 LW |
5263 | break; |
5264 | case 6: | |
a0d0e21e | 5265 | if (strEQ(d,"accept")) return -KEY_accept; |
463ee0b2 LW |
5266 | break; |
5267 | } | |
79072805 LW |
5268 | break; |
5269 | case 'B': | |
5270 | if (strEQ(d,"BEGIN")) return KEY_BEGIN; | |
93a17b20 | 5271 | break; |
79072805 | 5272 | case 'b': |
a0d0e21e LW |
5273 | if (strEQ(d,"bless")) return -KEY_bless; |
5274 | if (strEQ(d,"bind")) return -KEY_bind; | |
5275 | if (strEQ(d,"binmode")) return -KEY_binmode; | |
5276 | break; | |
5277 | case 'C': | |
5278 | if (strEQ(d,"CORE")) return -KEY_CORE; | |
7d30b5c4 | 5279 | if (strEQ(d,"CHECK")) return KEY_CHECK; |
79072805 LW |
5280 | break; |
5281 | case 'c': | |
5282 | switch (len) { | |
5283 | case 3: | |
a0d0e21e LW |
5284 | if (strEQ(d,"cmp")) return -KEY_cmp; |
5285 | if (strEQ(d,"chr")) return -KEY_chr; | |
5286 | if (strEQ(d,"cos")) return -KEY_cos; | |
79072805 LW |
5287 | break; |
5288 | case 4: | |
79e5458b | 5289 | if (strEQ(d,"chop")) return -KEY_chop; |
79072805 LW |
5290 | break; |
5291 | case 5: | |
a0d0e21e LW |
5292 | if (strEQ(d,"close")) return -KEY_close; |
5293 | if (strEQ(d,"chdir")) return -KEY_chdir; | |
79e5458b | 5294 | if (strEQ(d,"chomp")) return -KEY_chomp; |
a0d0e21e LW |
5295 | if (strEQ(d,"chmod")) return -KEY_chmod; |
5296 | if (strEQ(d,"chown")) return -KEY_chown; | |
5297 | if (strEQ(d,"crypt")) return -KEY_crypt; | |
79072805 LW |
5298 | break; |
5299 | case 6: | |
a0d0e21e LW |
5300 | if (strEQ(d,"chroot")) return -KEY_chroot; |
5301 | if (strEQ(d,"caller")) return -KEY_caller; | |
79072805 LW |
5302 | break; |
5303 | case 7: | |
a0d0e21e | 5304 | if (strEQ(d,"connect")) return -KEY_connect; |
79072805 LW |
5305 | break; |
5306 | case 8: | |
a0d0e21e LW |
5307 | if (strEQ(d,"closedir")) return -KEY_closedir; |
5308 | if (strEQ(d,"continue")) return -KEY_continue; | |
79072805 LW |
5309 | break; |
5310 | } | |
5311 | break; | |
ed6116ce LW |
5312 | case 'D': |
5313 | if (strEQ(d,"DESTROY")) return KEY_DESTROY; | |
5314 | break; | |
79072805 LW |
5315 | case 'd': |
5316 | switch (len) { | |
5317 | case 2: | |
5318 | if (strEQ(d,"do")) return KEY_do; | |
5319 | break; | |
5320 | case 3: | |
a0d0e21e | 5321 | if (strEQ(d,"die")) return -KEY_die; |
79072805 LW |
5322 | break; |
5323 | case 4: | |
a0d0e21e | 5324 | if (strEQ(d,"dump")) return -KEY_dump; |
79072805 LW |
5325 | break; |
5326 | case 6: | |
5327 | if (strEQ(d,"delete")) return KEY_delete; | |
5328 | break; | |
5329 | case 7: | |
5330 | if (strEQ(d,"defined")) return KEY_defined; | |
a0d0e21e | 5331 | if (strEQ(d,"dbmopen")) return -KEY_dbmopen; |
79072805 LW |
5332 | break; |
5333 | case 8: | |
a0d0e21e | 5334 | if (strEQ(d,"dbmclose")) return -KEY_dbmclose; |
79072805 LW |
5335 | break; |
5336 | } | |
5337 | break; | |
5338 | case 'E': | |
79072805 LW |
5339 | if (strEQ(d,"END")) return KEY_END; |
5340 | break; | |
5341 | case 'e': | |
5342 | switch (len) { | |
5343 | case 2: | |
a0d0e21e | 5344 | if (strEQ(d,"eq")) return -KEY_eq; |
79072805 LW |
5345 | break; |
5346 | case 3: | |
a0d0e21e LW |
5347 | if (strEQ(d,"eof")) return -KEY_eof; |
5348 | if (strEQ(d,"exp")) return -KEY_exp; | |
79072805 LW |
5349 | break; |
5350 | case 4: | |
5351 | if (strEQ(d,"else")) return KEY_else; | |
a0d0e21e | 5352 | if (strEQ(d,"exit")) return -KEY_exit; |
79072805 | 5353 | if (strEQ(d,"eval")) return KEY_eval; |
a0d0e21e | 5354 | if (strEQ(d,"exec")) return -KEY_exec; |
3a6a8333 | 5355 | if (strEQ(d,"each")) return -KEY_each; |
79072805 LW |
5356 | break; |
5357 | case 5: | |
5358 | if (strEQ(d,"elsif")) return KEY_elsif; | |
5359 | break; | |
a0d0e21e LW |
5360 | case 6: |
5361 | if (strEQ(d,"exists")) return KEY_exists; | |
cea2e8a9 | 5362 | if (strEQ(d,"elseif")) Perl_warn(aTHX_ "elseif should be elsif"); |
a0d0e21e | 5363 | break; |
79072805 | 5364 | case 8: |
a0d0e21e LW |
5365 | if (strEQ(d,"endgrent")) return -KEY_endgrent; |
5366 | if (strEQ(d,"endpwent")) return -KEY_endpwent; | |
79072805 LW |
5367 | break; |
5368 | case 9: | |
a0d0e21e | 5369 | if (strEQ(d,"endnetent")) return -KEY_endnetent; |
79072805 LW |
5370 | break; |
5371 | case 10: | |
a0d0e21e LW |
5372 | if (strEQ(d,"endhostent")) return -KEY_endhostent; |
5373 | if (strEQ(d,"endservent")) return -KEY_endservent; | |
79072805 LW |
5374 | break; |
5375 | case 11: | |
a0d0e21e | 5376 | if (strEQ(d,"endprotoent")) return -KEY_endprotoent; |
79072805 | 5377 | break; |
a687059c | 5378 | } |
a687059c | 5379 | break; |
79072805 LW |
5380 | case 'f': |
5381 | switch (len) { | |
5382 | case 3: | |
5383 | if (strEQ(d,"for")) return KEY_for; | |
5384 | break; | |
5385 | case 4: | |
a0d0e21e | 5386 | if (strEQ(d,"fork")) return -KEY_fork; |
79072805 LW |
5387 | break; |
5388 | case 5: | |
a0d0e21e LW |
5389 | if (strEQ(d,"fcntl")) return -KEY_fcntl; |
5390 | if (strEQ(d,"flock")) return -KEY_flock; | |
79072805 LW |
5391 | break; |
5392 | case 6: | |
5393 | if (strEQ(d,"format")) return KEY_format; | |
a0d0e21e | 5394 | if (strEQ(d,"fileno")) return -KEY_fileno; |
79072805 LW |
5395 | break; |
5396 | case 7: | |
5397 | if (strEQ(d,"foreach")) return KEY_foreach; | |
5398 | break; | |
5399 | case 8: | |
a0d0e21e | 5400 | if (strEQ(d,"formline")) return -KEY_formline; |
79072805 | 5401 | break; |
378cc40b | 5402 | } |
a687059c | 5403 | break; |
79072805 | 5404 | case 'g': |
a687059c LW |
5405 | if (strnEQ(d,"get",3)) { |
5406 | d += 3; | |
5407 | if (*d == 'p') { | |
79072805 LW |
5408 | switch (len) { |
5409 | case 7: | |
a0d0e21e LW |
5410 | if (strEQ(d,"ppid")) return -KEY_getppid; |
5411 | if (strEQ(d,"pgrp")) return -KEY_getpgrp; | |
79072805 LW |
5412 | break; |
5413 | case 8: | |
a0d0e21e LW |
5414 | if (strEQ(d,"pwent")) return -KEY_getpwent; |
5415 | if (strEQ(d,"pwnam")) return -KEY_getpwnam; | |
5416 | if (strEQ(d,"pwuid")) return -KEY_getpwuid; | |
79072805 LW |
5417 | break; |
5418 | case 11: | |
a0d0e21e LW |
5419 | if (strEQ(d,"peername")) return -KEY_getpeername; |
5420 | if (strEQ(d,"protoent")) return -KEY_getprotoent; | |
5421 | if (strEQ(d,"priority")) return -KEY_getpriority; | |
79072805 LW |
5422 | break; |
5423 | case 14: | |
a0d0e21e | 5424 | if (strEQ(d,"protobyname")) return -KEY_getprotobyname; |
79072805 LW |
5425 | break; |
5426 | case 16: | |
a0d0e21e | 5427 | if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber; |
79072805 LW |
5428 | break; |
5429 | } | |
a687059c LW |
5430 | } |
5431 | else if (*d == 'h') { | |
a0d0e21e LW |
5432 | if (strEQ(d,"hostbyname")) return -KEY_gethostbyname; |
5433 | if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr; | |
5434 | if (strEQ(d,"hostent")) return -KEY_gethostent; | |
a687059c LW |
5435 | } |
5436 | else if (*d == 'n') { | |
a0d0e21e LW |
5437 | if (strEQ(d,"netbyname")) return -KEY_getnetbyname; |
5438 | if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr; | |
5439 | if (strEQ(d,"netent")) return -KEY_getnetent; | |
a687059c LW |
5440 | } |
5441 | else if (*d == 's') { | |
a0d0e21e LW |
5442 | if (strEQ(d,"servbyname")) return -KEY_getservbyname; |
5443 | if (strEQ(d,"servbyport")) return -KEY_getservbyport; | |
5444 | if (strEQ(d,"servent")) return -KEY_getservent; | |
5445 | if (strEQ(d,"sockname")) return -KEY_getsockname; | |
5446 | if (strEQ(d,"sockopt")) return -KEY_getsockopt; | |
a687059c LW |
5447 | } |
5448 | else if (*d == 'g') { | |
a0d0e21e LW |
5449 | if (strEQ(d,"grent")) return -KEY_getgrent; |
5450 | if (strEQ(d,"grnam")) return -KEY_getgrnam; | |
5451 | if (strEQ(d,"grgid")) return -KEY_getgrgid; | |
a687059c LW |
5452 | } |
5453 | else if (*d == 'l') { | |
a0d0e21e | 5454 | if (strEQ(d,"login")) return -KEY_getlogin; |
a687059c | 5455 | } |
a0d0e21e | 5456 | else if (strEQ(d,"c")) return -KEY_getc; |
79072805 | 5457 | break; |
a687059c | 5458 | } |
79072805 LW |
5459 | switch (len) { |
5460 | case 2: | |
a0d0e21e LW |
5461 | if (strEQ(d,"gt")) return -KEY_gt; |
5462 | if (strEQ(d,"ge")) return -KEY_ge; | |
79072805 LW |
5463 | break; |
5464 | case 4: | |
5465 | if (strEQ(d,"grep")) return KEY_grep; | |
5466 | if (strEQ(d,"goto")) return KEY_goto; | |
fb73857a | 5467 | if (strEQ(d,"glob")) return KEY_glob; |
79072805 LW |
5468 | break; |
5469 | case 6: | |
a0d0e21e | 5470 | if (strEQ(d,"gmtime")) return -KEY_gmtime; |
79072805 | 5471 | break; |
378cc40b | 5472 | } |
a687059c | 5473 | break; |
79072805 | 5474 | case 'h': |
a0d0e21e | 5475 | if (strEQ(d,"hex")) return -KEY_hex; |
a687059c | 5476 | break; |
7d07dbc2 MB |
5477 | case 'I': |
5478 | if (strEQ(d,"INIT")) return KEY_INIT; | |
5479 | break; | |
79072805 LW |
5480 | case 'i': |
5481 | switch (len) { | |
5482 | case 2: | |
5483 | if (strEQ(d,"if")) return KEY_if; | |
5484 | break; | |
5485 | case 3: | |
a0d0e21e | 5486 | if (strEQ(d,"int")) return -KEY_int; |
79072805 LW |
5487 | break; |
5488 | case 5: | |
a0d0e21e LW |
5489 | if (strEQ(d,"index")) return -KEY_index; |
5490 | if (strEQ(d,"ioctl")) return -KEY_ioctl; | |
79072805 LW |
5491 | break; |
5492 | } | |
a687059c | 5493 | break; |
79072805 | 5494 | case 'j': |
a0d0e21e | 5495 | if (strEQ(d,"join")) return -KEY_join; |
a687059c | 5496 | break; |
79072805 LW |
5497 | case 'k': |
5498 | if (len == 4) { | |
3a6a8333 | 5499 | if (strEQ(d,"keys")) return -KEY_keys; |
a0d0e21e | 5500 | if (strEQ(d,"kill")) return -KEY_kill; |
663a0e37 | 5501 | } |
79072805 | 5502 | break; |
79072805 LW |
5503 | case 'l': |
5504 | switch (len) { | |
5505 | case 2: | |
a0d0e21e LW |
5506 | if (strEQ(d,"lt")) return -KEY_lt; |
5507 | if (strEQ(d,"le")) return -KEY_le; | |
5508 | if (strEQ(d,"lc")) return -KEY_lc; | |
79072805 LW |
5509 | break; |
5510 | case 3: | |
a0d0e21e | 5511 | if (strEQ(d,"log")) return -KEY_log; |
79072805 LW |
5512 | break; |
5513 | case 4: | |
5514 | if (strEQ(d,"last")) return KEY_last; | |
a0d0e21e | 5515 | if (strEQ(d,"link")) return -KEY_link; |
c0329465 | 5516 | if (strEQ(d,"lock")) return -KEY_lock; |
395c3793 | 5517 | break; |
79072805 LW |
5518 | case 5: |
5519 | if (strEQ(d,"local")) return KEY_local; | |
a0d0e21e | 5520 | if (strEQ(d,"lstat")) return -KEY_lstat; |
79072805 LW |
5521 | break; |
5522 | case 6: | |
a0d0e21e LW |
5523 | if (strEQ(d,"length")) return -KEY_length; |
5524 | if (strEQ(d,"listen")) return -KEY_listen; | |
79072805 LW |
5525 | break; |
5526 | case 7: | |
a0d0e21e | 5527 | if (strEQ(d,"lcfirst")) return -KEY_lcfirst; |
79072805 LW |
5528 | break; |
5529 | case 9: | |
a0d0e21e | 5530 | if (strEQ(d,"localtime")) return -KEY_localtime; |
395c3793 LW |
5531 | break; |
5532 | } | |
a687059c | 5533 | break; |
79072805 LW |
5534 | case 'm': |
5535 | switch (len) { | |
5536 | case 1: return KEY_m; | |
93a17b20 LW |
5537 | case 2: |
5538 | if (strEQ(d,"my")) return KEY_my; | |
5539 | break; | |
a0d0e21e LW |
5540 | case 3: |
5541 | if (strEQ(d,"map")) return KEY_map; | |
5542 | break; | |
79072805 | 5543 | case 5: |
a0d0e21e | 5544 | if (strEQ(d,"mkdir")) return -KEY_mkdir; |
79072805 LW |
5545 | break; |
5546 | case 6: | |
a0d0e21e LW |
5547 | if (strEQ(d,"msgctl")) return -KEY_msgctl; |
5548 | if (strEQ(d,"msgget")) return -KEY_msgget; | |
5549 | if (strEQ(d,"msgrcv")) return -KEY_msgrcv; | |
5550 | if (strEQ(d,"msgsnd")) return -KEY_msgsnd; | |
79072805 LW |
5551 | break; |
5552 | } | |
a687059c | 5553 | break; |
79072805 LW |
5554 | case 'n': |
5555 | if (strEQ(d,"next")) return KEY_next; | |
a0d0e21e LW |
5556 | if (strEQ(d,"ne")) return -KEY_ne; |
5557 | if (strEQ(d,"not")) return -KEY_not; | |
5558 | if (strEQ(d,"no")) return KEY_no; | |
a687059c | 5559 | break; |
79072805 LW |
5560 | case 'o': |
5561 | switch (len) { | |
463ee0b2 | 5562 | case 2: |
a0d0e21e | 5563 | if (strEQ(d,"or")) return -KEY_or; |
463ee0b2 | 5564 | break; |
79072805 | 5565 | case 3: |
a0d0e21e LW |
5566 | if (strEQ(d,"ord")) return -KEY_ord; |
5567 | if (strEQ(d,"oct")) return -KEY_oct; | |
77ca0c92 | 5568 | if (strEQ(d,"our")) return KEY_our; |
79072805 LW |
5569 | break; |
5570 | case 4: | |
a0d0e21e | 5571 | if (strEQ(d,"open")) return -KEY_open; |
79072805 LW |
5572 | break; |
5573 | case 7: | |
a0d0e21e | 5574 | if (strEQ(d,"opendir")) return -KEY_opendir; |
79072805 | 5575 | break; |
fe14fcc3 | 5576 | } |
a687059c | 5577 | break; |
79072805 LW |
5578 | case 'p': |
5579 | switch (len) { | |
5580 | case 3: | |
4e553d73 | 5581 | if (strEQ(d,"pop")) return -KEY_pop; |
a0d0e21e | 5582 | if (strEQ(d,"pos")) return KEY_pos; |
79072805 LW |
5583 | break; |
5584 | case 4: | |
3a6a8333 | 5585 | if (strEQ(d,"push")) return -KEY_push; |
a0d0e21e LW |
5586 | if (strEQ(d,"pack")) return -KEY_pack; |
5587 | if (strEQ(d,"pipe")) return -KEY_pipe; | |
79072805 LW |
5588 | break; |
5589 | case 5: | |
5590 | if (strEQ(d,"print")) return KEY_print; | |
5591 | break; | |
5592 | case 6: | |
5593 | if (strEQ(d,"printf")) return KEY_printf; | |
5594 | break; | |
5595 | case 7: | |
5596 | if (strEQ(d,"package")) return KEY_package; | |
5597 | break; | |
c07a80fd | 5598 | case 9: |
5599 | if (strEQ(d,"prototype")) return KEY_prototype; | |
663a0e37 | 5600 | } |
79072805 LW |
5601 | break; |
5602 | case 'q': | |
5603 | if (len <= 2) { | |
5604 | if (strEQ(d,"q")) return KEY_q; | |
8782bef2 | 5605 | if (strEQ(d,"qr")) return KEY_qr; |
79072805 | 5606 | if (strEQ(d,"qq")) return KEY_qq; |
8990e307 | 5607 | if (strEQ(d,"qw")) return KEY_qw; |
79072805 | 5608 | if (strEQ(d,"qx")) return KEY_qx; |
663a0e37 | 5609 | } |
a0d0e21e | 5610 | else if (strEQ(d,"quotemeta")) return -KEY_quotemeta; |
79072805 LW |
5611 | break; |
5612 | case 'r': | |
5613 | switch (len) { | |
5614 | case 3: | |
a0d0e21e | 5615 | if (strEQ(d,"ref")) return -KEY_ref; |
79072805 LW |
5616 | break; |
5617 | case 4: | |
a0d0e21e LW |
5618 | if (strEQ(d,"read")) return -KEY_read; |
5619 | if (strEQ(d,"rand")) return -KEY_rand; | |
5620 | if (strEQ(d,"recv")) return -KEY_recv; | |
79072805 LW |
5621 | if (strEQ(d,"redo")) return KEY_redo; |
5622 | break; | |
5623 | case 5: | |
a0d0e21e LW |
5624 | if (strEQ(d,"rmdir")) return -KEY_rmdir; |
5625 | if (strEQ(d,"reset")) return -KEY_reset; | |
79072805 LW |
5626 | break; |
5627 | case 6: | |
5628 | if (strEQ(d,"return")) return KEY_return; | |
a0d0e21e LW |
5629 | if (strEQ(d,"rename")) return -KEY_rename; |
5630 | if (strEQ(d,"rindex")) return -KEY_rindex; | |
79072805 LW |
5631 | break; |
5632 | case 7: | |
a0d0e21e LW |
5633 | if (strEQ(d,"require")) return -KEY_require; |
5634 | if (strEQ(d,"reverse")) return -KEY_reverse; | |
5635 | if (strEQ(d,"readdir")) return -KEY_readdir; | |
79072805 LW |
5636 | break; |
5637 | case 8: | |
a0d0e21e LW |
5638 | if (strEQ(d,"readlink")) return -KEY_readlink; |
5639 | if (strEQ(d,"readline")) return -KEY_readline; | |
5640 | if (strEQ(d,"readpipe")) return -KEY_readpipe; | |
79072805 LW |
5641 | break; |
5642 | case 9: | |
a0d0e21e | 5643 | if (strEQ(d,"rewinddir")) return -KEY_rewinddir; |
79072805 | 5644 | break; |
a687059c | 5645 | } |
79072805 LW |
5646 | break; |
5647 | case 's': | |
a687059c | 5648 | switch (d[1]) { |
79072805 | 5649 | case 0: return KEY_s; |
a687059c | 5650 | case 'c': |
79072805 | 5651 | if (strEQ(d,"scalar")) return KEY_scalar; |
a687059c LW |
5652 | break; |
5653 | case 'e': | |
79072805 LW |
5654 | switch (len) { |
5655 | case 4: | |
a0d0e21e LW |
5656 | if (strEQ(d,"seek")) return -KEY_seek; |
5657 | if (strEQ(d,"send")) return -KEY_send; | |
79072805 LW |
5658 | break; |
5659 | case 5: | |
a0d0e21e | 5660 | if (strEQ(d,"semop")) return -KEY_semop; |
79072805 LW |
5661 | break; |
5662 | case 6: | |
a0d0e21e LW |
5663 | if (strEQ(d,"select")) return -KEY_select; |
5664 | if (strEQ(d,"semctl")) return -KEY_semctl; | |
5665 | if (strEQ(d,"semget")) return -KEY_semget; | |
79072805 LW |
5666 | break; |
5667 | case 7: | |
a0d0e21e LW |
5668 | if (strEQ(d,"setpgrp")) return -KEY_setpgrp; |
5669 | if (strEQ(d,"seekdir")) return -KEY_seekdir; | |
79072805 LW |
5670 | break; |
5671 | case 8: | |
a0d0e21e LW |
5672 | if (strEQ(d,"setpwent")) return -KEY_setpwent; |
5673 | if (strEQ(d,"setgrent")) return -KEY_setgrent; | |
79072805 LW |
5674 | break; |
5675 | case 9: | |
a0d0e21e | 5676 | if (strEQ(d,"setnetent")) return -KEY_setnetent; |
79072805 LW |
5677 | break; |
5678 | case 10: | |
a0d0e21e LW |
5679 | if (strEQ(d,"setsockopt")) return -KEY_setsockopt; |
5680 | if (strEQ(d,"sethostent")) return -KEY_sethostent; | |
5681 | if (strEQ(d,"setservent")) return -KEY_setservent; | |
79072805 LW |
5682 | break; |
5683 | case 11: | |
a0d0e21e LW |
5684 | if (strEQ(d,"setpriority")) return -KEY_setpriority; |
5685 | if (strEQ(d,"setprotoent")) return -KEY_setprotoent; | |
79072805 LW |
5686 | break; |
5687 | } | |
a687059c LW |
5688 | break; |
5689 | case 'h': | |
79072805 LW |
5690 | switch (len) { |
5691 | case 5: | |
3a6a8333 | 5692 | if (strEQ(d,"shift")) return -KEY_shift; |
79072805 LW |
5693 | break; |
5694 | case 6: | |
a0d0e21e LW |
5695 | if (strEQ(d,"shmctl")) return -KEY_shmctl; |
5696 | if (strEQ(d,"shmget")) return -KEY_shmget; | |
79072805 LW |
5697 | break; |
5698 | case 7: | |
a0d0e21e | 5699 | if (strEQ(d,"shmread")) return -KEY_shmread; |
79072805 LW |
5700 | break; |
5701 | case 8: | |
a0d0e21e LW |
5702 | if (strEQ(d,"shmwrite")) return -KEY_shmwrite; |
5703 | if (strEQ(d,"shutdown")) return -KEY_shutdown; | |
79072805 LW |
5704 | break; |
5705 | } | |
a687059c LW |
5706 | break; |
5707 | case 'i': | |
a0d0e21e | 5708 | if (strEQ(d,"sin")) return -KEY_sin; |
a687059c LW |
5709 | break; |
5710 | case 'l': | |
a0d0e21e | 5711 | if (strEQ(d,"sleep")) return -KEY_sleep; |
a687059c LW |
5712 | break; |
5713 | case 'o': | |
79072805 | 5714 | if (strEQ(d,"sort")) return KEY_sort; |
a0d0e21e LW |
5715 | if (strEQ(d,"socket")) return -KEY_socket; |
5716 | if (strEQ(d,"socketpair")) return -KEY_socketpair; | |
a687059c LW |
5717 | break; |
5718 | case 'p': | |
79072805 | 5719 | if (strEQ(d,"split")) return KEY_split; |
a0d0e21e | 5720 | if (strEQ(d,"sprintf")) return -KEY_sprintf; |
3a6a8333 | 5721 | if (strEQ(d,"splice")) return -KEY_splice; |
a687059c LW |
5722 | break; |
5723 | case 'q': | |
a0d0e21e | 5724 | if (strEQ(d,"sqrt")) return -KEY_sqrt; |
a687059c LW |
5725 | break; |
5726 | case 'r': | |
a0d0e21e | 5727 | if (strEQ(d,"srand")) return -KEY_srand; |
a687059c LW |
5728 | break; |
5729 | case 't': | |
a0d0e21e | 5730 | if (strEQ(d,"stat")) return -KEY_stat; |
79072805 | 5731 | if (strEQ(d,"study")) return KEY_study; |
a687059c LW |
5732 | break; |
5733 | case 'u': | |
a0d0e21e | 5734 | if (strEQ(d,"substr")) return -KEY_substr; |
79072805 | 5735 | if (strEQ(d,"sub")) return KEY_sub; |
a687059c LW |
5736 | break; |
5737 | case 'y': | |
79072805 LW |
5738 | switch (len) { |
5739 | case 6: | |
a0d0e21e | 5740 | if (strEQ(d,"system")) return -KEY_system; |
79072805 LW |
5741 | break; |
5742 | case 7: | |
a0d0e21e LW |
5743 | if (strEQ(d,"symlink")) return -KEY_symlink; |
5744 | if (strEQ(d,"syscall")) return -KEY_syscall; | |
137443ea | 5745 | if (strEQ(d,"sysopen")) return -KEY_sysopen; |
5746 | if (strEQ(d,"sysread")) return -KEY_sysread; | |
5747 | if (strEQ(d,"sysseek")) return -KEY_sysseek; | |
79072805 LW |
5748 | break; |
5749 | case 8: | |
a0d0e21e | 5750 | if (strEQ(d,"syswrite")) return -KEY_syswrite; |
79072805 | 5751 | break; |
a687059c | 5752 | } |
a687059c LW |
5753 | break; |
5754 | } | |
5755 | break; | |
79072805 LW |
5756 | case 't': |
5757 | switch (len) { | |
5758 | case 2: | |
5759 | if (strEQ(d,"tr")) return KEY_tr; | |
5760 | break; | |
463ee0b2 LW |
5761 | case 3: |
5762 | if (strEQ(d,"tie")) return KEY_tie; | |
5763 | break; | |
79072805 | 5764 | case 4: |
a0d0e21e | 5765 | if (strEQ(d,"tell")) return -KEY_tell; |
c07a80fd | 5766 | if (strEQ(d,"tied")) return KEY_tied; |
a0d0e21e | 5767 | if (strEQ(d,"time")) return -KEY_time; |
79072805 LW |
5768 | break; |
5769 | case 5: | |
a0d0e21e | 5770 | if (strEQ(d,"times")) return -KEY_times; |
79072805 LW |
5771 | break; |
5772 | case 7: | |
a0d0e21e | 5773 | if (strEQ(d,"telldir")) return -KEY_telldir; |
79072805 LW |
5774 | break; |
5775 | case 8: | |
a0d0e21e | 5776 | if (strEQ(d,"truncate")) return -KEY_truncate; |
79072805 | 5777 | break; |
378cc40b | 5778 | } |
a687059c | 5779 | break; |
79072805 LW |
5780 | case 'u': |
5781 | switch (len) { | |
5782 | case 2: | |
a0d0e21e LW |
5783 | if (strEQ(d,"uc")) return -KEY_uc; |
5784 | break; | |
5785 | case 3: | |
5786 | if (strEQ(d,"use")) return KEY_use; | |
79072805 LW |
5787 | break; |
5788 | case 5: | |
5789 | if (strEQ(d,"undef")) return KEY_undef; | |
5790 | if (strEQ(d,"until")) return KEY_until; | |
463ee0b2 | 5791 | if (strEQ(d,"untie")) return KEY_untie; |
a0d0e21e LW |
5792 | if (strEQ(d,"utime")) return -KEY_utime; |
5793 | if (strEQ(d,"umask")) return -KEY_umask; | |
79072805 LW |
5794 | break; |
5795 | case 6: | |
5796 | if (strEQ(d,"unless")) return KEY_unless; | |
a0d0e21e LW |
5797 | if (strEQ(d,"unpack")) return -KEY_unpack; |
5798 | if (strEQ(d,"unlink")) return -KEY_unlink; | |
79072805 LW |
5799 | break; |
5800 | case 7: | |
3a6a8333 | 5801 | if (strEQ(d,"unshift")) return -KEY_unshift; |
a0d0e21e | 5802 | if (strEQ(d,"ucfirst")) return -KEY_ucfirst; |
79072805 | 5803 | break; |
a687059c LW |
5804 | } |
5805 | break; | |
79072805 | 5806 | case 'v': |
a0d0e21e LW |
5807 | if (strEQ(d,"values")) return -KEY_values; |
5808 | if (strEQ(d,"vec")) return -KEY_vec; | |
a687059c | 5809 | break; |
79072805 LW |
5810 | case 'w': |
5811 | switch (len) { | |
5812 | case 4: | |
a0d0e21e LW |
5813 | if (strEQ(d,"warn")) return -KEY_warn; |
5814 | if (strEQ(d,"wait")) return -KEY_wait; | |
79072805 LW |
5815 | break; |
5816 | case 5: | |
5817 | if (strEQ(d,"while")) return KEY_while; | |
a0d0e21e | 5818 | if (strEQ(d,"write")) return -KEY_write; |
79072805 LW |
5819 | break; |
5820 | case 7: | |
a0d0e21e | 5821 | if (strEQ(d,"waitpid")) return -KEY_waitpid; |
79072805 LW |
5822 | break; |
5823 | case 9: | |
a0d0e21e | 5824 | if (strEQ(d,"wantarray")) return -KEY_wantarray; |
79072805 | 5825 | break; |
2f3197b3 | 5826 | } |
a687059c | 5827 | break; |
79072805 | 5828 | case 'x': |
a0d0e21e LW |
5829 | if (len == 1) return -KEY_x; |
5830 | if (strEQ(d,"xor")) return -KEY_xor; | |
a687059c | 5831 | break; |
79072805 LW |
5832 | case 'y': |
5833 | if (len == 1) return KEY_y; | |
5834 | break; | |
5835 | case 'z': | |
a687059c LW |
5836 | break; |
5837 | } | |
79072805 | 5838 | return 0; |
a687059c LW |
5839 | } |
5840 | ||
76e3520e | 5841 | STATIC void |
cea2e8a9 | 5842 | S_checkcomma(pTHX_ register char *s, char *name, char *what) |
a687059c | 5843 | { |
2f3197b3 LW |
5844 | char *w; |
5845 | ||
d008e5eb | 5846 | if (*s == ' ' && s[1] == '(') { /* XXX gotta be a better way */ |
d008e5eb GS |
5847 | if (ckWARN(WARN_SYNTAX)) { |
5848 | int level = 1; | |
5849 | for (w = s+2; *w && level; w++) { | |
5850 | if (*w == '(') | |
5851 | ++level; | |
5852 | else if (*w == ')') | |
5853 | --level; | |
5854 | } | |
5855 | if (*w) | |
5856 | for (; *w && isSPACE(*w); w++) ; | |
5857 | if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */ | |
65cec589 GS |
5858 | Perl_warner(aTHX_ WARN_SYNTAX, |
5859 | "%s (...) interpreted as function",name); | |
d008e5eb | 5860 | } |
2f3197b3 | 5861 | } |
3280af22 | 5862 | while (s < PL_bufend && isSPACE(*s)) |
2f3197b3 | 5863 | s++; |
a687059c LW |
5864 | if (*s == '(') |
5865 | s++; | |
3280af22 | 5866 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 5867 | s++; |
7e2040f0 | 5868 | if (isIDFIRST_lazy_if(s,UTF)) { |
2f3197b3 | 5869 | w = s++; |
7e2040f0 | 5870 | while (isALNUM_lazy_if(s,UTF)) |
a687059c | 5871 | s++; |
3280af22 | 5872 | while (s < PL_bufend && isSPACE(*s)) |
a687059c | 5873 | s++; |
e929a76b | 5874 | if (*s == ',') { |
463ee0b2 | 5875 | int kw; |
e929a76b | 5876 | *s = '\0'; |
864dbfa3 | 5877 | kw = keyword(w, s - w) || get_cv(w, FALSE) != 0; |
e929a76b | 5878 | *s = ','; |
463ee0b2 | 5879 | if (kw) |
e929a76b | 5880 | return; |
cea2e8a9 | 5881 | Perl_croak(aTHX_ "No comma allowed after %s", what); |
463ee0b2 LW |
5882 | } |
5883 | } | |
5884 | } | |
5885 | ||
423cee85 JH |
5886 | /* Either returns sv, or mortalizes sv and returns a new SV*. |
5887 | Best used as sv=new_constant(..., sv, ...). | |
5888 | If s, pv are NULL, calls subroutine with one argument, | |
5889 | and type is used with error messages only. */ | |
5890 | ||
b3ac6de7 | 5891 | STATIC SV * |
dff6d3cd | 5892 | S_new_constant(pTHX_ char *s, STRLEN len, const char *key, SV *sv, SV *pv, |
9b0e499b | 5893 | const char *type) |
b3ac6de7 | 5894 | { |
b3ac6de7 | 5895 | dSP; |
3280af22 | 5896 | HV *table = GvHV(PL_hintgv); /* ^H */ |
b3ac6de7 | 5897 | SV *res; |
b3ac6de7 IZ |
5898 | SV **cvp; |
5899 | SV *cv, *typesv; | |
f0af216f | 5900 | const char *why1, *why2, *why3; |
4e553d73 | 5901 | |
f0af216f | 5902 | if (!table || !(PL_hints & HINT_LOCALIZE_HH)) { |
423cee85 JH |
5903 | SV *msg; |
5904 | ||
f0af216f | 5905 | why2 = strEQ(key,"charnames") |
41ab332f | 5906 | ? "(possibly a missing \"use charnames ...\")" |
f0af216f | 5907 | : ""; |
4e553d73 | 5908 | msg = Perl_newSVpvf(aTHX_ "Constant(%s) unknown: %s", |
41ab332f JH |
5909 | (type ? type: "undef"), why2); |
5910 | ||
5911 | /* This is convoluted and evil ("goto considered harmful") | |
5912 | * but I do not understand the intricacies of all the different | |
5913 | * failure modes of %^H in here. The goal here is to make | |
5914 | * the most probable error message user-friendly. --jhi */ | |
5915 | ||
5916 | goto msgdone; | |
5917 | ||
423cee85 | 5918 | report: |
4e553d73 | 5919 | msg = Perl_newSVpvf(aTHX_ "Constant(%s): %s%s%s", |
f0af216f | 5920 | (type ? type: "undef"), why1, why2, why3); |
41ab332f | 5921 | msgdone: |
423cee85 JH |
5922 | yyerror(SvPVX(msg)); |
5923 | SvREFCNT_dec(msg); | |
5924 | return sv; | |
5925 | } | |
b3ac6de7 IZ |
5926 | cvp = hv_fetch(table, key, strlen(key), FALSE); |
5927 | if (!cvp || !SvOK(*cvp)) { | |
423cee85 JH |
5928 | why1 = "$^H{"; |
5929 | why2 = key; | |
f0af216f | 5930 | why3 = "} is not defined"; |
423cee85 | 5931 | goto report; |
b3ac6de7 IZ |
5932 | } |
5933 | sv_2mortal(sv); /* Parent created it permanently */ | |
5934 | cv = *cvp; | |
423cee85 JH |
5935 | if (!pv && s) |
5936 | pv = sv_2mortal(newSVpvn(s, len)); | |
5937 | if (type && pv) | |
5938 | typesv = sv_2mortal(newSVpv(type, 0)); | |
b3ac6de7 | 5939 | else |
423cee85 | 5940 | typesv = &PL_sv_undef; |
4e553d73 | 5941 | |
e788e7d3 | 5942 | PUSHSTACKi(PERLSI_OVERLOAD); |
423cee85 JH |
5943 | ENTER ; |
5944 | SAVETMPS; | |
4e553d73 | 5945 | |
423cee85 | 5946 | PUSHMARK(SP) ; |
a5845cb7 | 5947 | EXTEND(sp, 3); |
423cee85 JH |
5948 | if (pv) |
5949 | PUSHs(pv); | |
b3ac6de7 | 5950 | PUSHs(sv); |
423cee85 JH |
5951 | if (pv) |
5952 | PUSHs(typesv); | |
b3ac6de7 | 5953 | PUTBACK; |
423cee85 | 5954 | call_sv(cv, G_SCALAR | ( PL_in_eval ? 0 : G_EVAL)); |
4e553d73 | 5955 | |
423cee85 | 5956 | SPAGAIN ; |
4e553d73 | 5957 | |
423cee85 | 5958 | /* Check the eval first */ |
9b0e499b | 5959 | if (!PL_in_eval && SvTRUE(ERRSV)) { |
423cee85 JH |
5960 | STRLEN n_a; |
5961 | sv_catpv(ERRSV, "Propagated"); | |
5962 | yyerror(SvPV(ERRSV, n_a)); /* Duplicates the message inside eval */ | |
e1f15930 | 5963 | (void)POPs; |
423cee85 JH |
5964 | res = SvREFCNT_inc(sv); |
5965 | } | |
5966 | else { | |
5967 | res = POPs; | |
e1f15930 | 5968 | (void)SvREFCNT_inc(res); |
423cee85 | 5969 | } |
4e553d73 | 5970 | |
423cee85 JH |
5971 | PUTBACK ; |
5972 | FREETMPS ; | |
5973 | LEAVE ; | |
b3ac6de7 | 5974 | POPSTACK; |
4e553d73 | 5975 | |
b3ac6de7 | 5976 | if (!SvOK(res)) { |
423cee85 JH |
5977 | why1 = "Call to &{$^H{"; |
5978 | why2 = key; | |
f0af216f | 5979 | why3 = "}} did not return a defined value"; |
423cee85 JH |
5980 | sv = res; |
5981 | goto report; | |
9b0e499b | 5982 | } |
423cee85 | 5983 | |
9b0e499b | 5984 | return res; |
b3ac6de7 | 5985 | } |
4e553d73 | 5986 | |
76e3520e | 5987 | STATIC char * |
cea2e8a9 | 5988 | S_scan_word(pTHX_ register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp) |
463ee0b2 LW |
5989 | { |
5990 | register char *d = dest; | |
8903cb82 | 5991 | register char *e = d + destlen - 3; /* two-character token, ending NUL */ |
463ee0b2 | 5992 | for (;;) { |
8903cb82 | 5993 | if (d >= e) |
cea2e8a9 | 5994 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 5995 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 5996 | *d++ = *s++; |
7e2040f0 | 5997 | else if (*s == '\'' && allow_package && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
5998 | *d++ = ':'; |
5999 | *d++ = ':'; | |
6000 | s++; | |
6001 | } | |
c3e0f903 | 6002 | else if (*s == ':' && s[1] == ':' && allow_package && s[2] != '$') { |
463ee0b2 LW |
6003 | *d++ = *s++; |
6004 | *d++ = *s++; | |
6005 | } | |
fd400ab9 | 6006 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 6007 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 6008 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
6009 | t += UTF8SKIP(t); |
6010 | if (d + (t - s) > e) | |
cea2e8a9 | 6011 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
6012 | Copy(s, d, t - s, char); |
6013 | d += t - s; | |
6014 | s = t; | |
6015 | } | |
463ee0b2 LW |
6016 | else { |
6017 | *d = '\0'; | |
6018 | *slp = d - dest; | |
6019 | return s; | |
e929a76b | 6020 | } |
378cc40b LW |
6021 | } |
6022 | } | |
6023 | ||
76e3520e | 6024 | STATIC char * |
cea2e8a9 | 6025 | S_scan_ident(pTHX_ register char *s, register char *send, char *dest, STRLEN destlen, I32 ck_uni) |
378cc40b LW |
6026 | { |
6027 | register char *d; | |
8903cb82 | 6028 | register char *e; |
79072805 | 6029 | char *bracket = 0; |
748a9306 | 6030 | char funny = *s++; |
378cc40b | 6031 | |
a0d0e21e LW |
6032 | if (isSPACE(*s)) |
6033 | s = skipspace(s); | |
378cc40b | 6034 | d = dest; |
8903cb82 | 6035 | e = d + destlen - 3; /* two-character token, ending NUL */ |
de3bb511 | 6036 | if (isDIGIT(*s)) { |
8903cb82 | 6037 | while (isDIGIT(*s)) { |
6038 | if (d >= e) | |
cea2e8a9 | 6039 | Perl_croak(aTHX_ ident_too_long); |
378cc40b | 6040 | *d++ = *s++; |
8903cb82 | 6041 | } |
378cc40b LW |
6042 | } |
6043 | else { | |
463ee0b2 | 6044 | for (;;) { |
8903cb82 | 6045 | if (d >= e) |
cea2e8a9 | 6046 | Perl_croak(aTHX_ ident_too_long); |
834a4ddd | 6047 | if (isALNUM(*s)) /* UTF handled below */ |
463ee0b2 | 6048 | *d++ = *s++; |
7e2040f0 | 6049 | else if (*s == '\'' && isIDFIRST_lazy_if(s+1,UTF)) { |
463ee0b2 LW |
6050 | *d++ = ':'; |
6051 | *d++ = ':'; | |
6052 | s++; | |
6053 | } | |
a0d0e21e | 6054 | else if (*s == ':' && s[1] == ':') { |
463ee0b2 LW |
6055 | *d++ = *s++; |
6056 | *d++ = *s++; | |
6057 | } | |
fd400ab9 | 6058 | else if (UTF && UTF8_IS_START(*s) && isALNUM_utf8((U8*)s)) { |
a0ed51b3 | 6059 | char *t = s + UTF8SKIP(s); |
fd400ab9 | 6060 | while (UTF8_IS_CONTINUED(*t) && is_utf8_mark((U8*)t)) |
a0ed51b3 LW |
6061 | t += UTF8SKIP(t); |
6062 | if (d + (t - s) > e) | |
cea2e8a9 | 6063 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 LW |
6064 | Copy(s, d, t - s, char); |
6065 | d += t - s; | |
6066 | s = t; | |
6067 | } | |
463ee0b2 LW |
6068 | else |
6069 | break; | |
6070 | } | |
378cc40b LW |
6071 | } |
6072 | *d = '\0'; | |
6073 | d = dest; | |
79072805 | 6074 | if (*d) { |
3280af22 NIS |
6075 | if (PL_lex_state != LEX_NORMAL) |
6076 | PL_lex_state = LEX_INTERPENDMAYBE; | |
79072805 | 6077 | return s; |
378cc40b | 6078 | } |
748a9306 | 6079 | if (*s == '$' && s[1] && |
7e2040f0 | 6080 | (isALNUM_lazy_if(s+1,UTF) || strchr("${", s[1]) || strnEQ(s+1,"::",2)) ) |
5cd24f17 | 6081 | { |
4810e5ec | 6082 | return s; |
5cd24f17 | 6083 | } |
79072805 LW |
6084 | if (*s == '{') { |
6085 | bracket = s; | |
6086 | s++; | |
6087 | } | |
6088 | else if (ck_uni) | |
6089 | check_uni(); | |
93a17b20 | 6090 | if (s < send) |
79072805 LW |
6091 | *d = *s++; |
6092 | d[1] = '\0'; | |
2b92dfce | 6093 | if (*d == '^' && *s && isCONTROLVAR(*s)) { |
bbce6d69 | 6094 | *d = toCTRL(*s); |
6095 | s++; | |
de3bb511 | 6096 | } |
79072805 | 6097 | if (bracket) { |
748a9306 | 6098 | if (isSPACE(s[-1])) { |
fa83b5b6 | 6099 | while (s < send) { |
6100 | char ch = *s++; | |
bf4acbe4 | 6101 | if (!SPACE_OR_TAB(ch)) { |
fa83b5b6 | 6102 | *d = ch; |
6103 | break; | |
6104 | } | |
6105 | } | |
748a9306 | 6106 | } |
7e2040f0 | 6107 | if (isIDFIRST_lazy_if(d,UTF)) { |
79072805 | 6108 | d++; |
a0ed51b3 LW |
6109 | if (UTF) { |
6110 | e = s; | |
155aba94 | 6111 | while ((e < send && isALNUM_lazy_if(e,UTF)) || *e == ':') { |
a0ed51b3 | 6112 | e += UTF8SKIP(e); |
fd400ab9 | 6113 | while (e < send && UTF8_IS_CONTINUED(*e) && is_utf8_mark((U8*)e)) |
a0ed51b3 LW |
6114 | e += UTF8SKIP(e); |
6115 | } | |
6116 | Copy(s, d, e - s, char); | |
6117 | d += e - s; | |
6118 | s = e; | |
6119 | } | |
6120 | else { | |
2b92dfce | 6121 | while ((isALNUM(*s) || *s == ':') && d < e) |
a0ed51b3 | 6122 | *d++ = *s++; |
2b92dfce | 6123 | if (d >= e) |
cea2e8a9 | 6124 | Perl_croak(aTHX_ ident_too_long); |
a0ed51b3 | 6125 | } |
79072805 | 6126 | *d = '\0'; |
bf4acbe4 | 6127 | while (s < send && SPACE_OR_TAB(*s)) s++; |
ff68c719 | 6128 | if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) { |
599cee73 | 6129 | if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest)) { |
dff6d3cd | 6130 | const char *brack = *s == '[' ? "[...]" : "{...}"; |
cea2e8a9 | 6131 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
599cee73 | 6132 | "Ambiguous use of %c{%s%s} resolved to %c%s%s", |
748a9306 LW |
6133 | funny, dest, brack, funny, dest, brack); |
6134 | } | |
79072805 | 6135 | bracket++; |
a0be28da | 6136 | PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK); |
79072805 LW |
6137 | return s; |
6138 | } | |
4e553d73 NIS |
6139 | } |
6140 | /* Handle extended ${^Foo} variables | |
2b92dfce GS |
6141 | * 1999-02-27 mjd-perl-patch@plover.com */ |
6142 | else if (!isALNUM(*d) && !isPRINT(*d) /* isCTRL(d) */ | |
6143 | && isALNUM(*s)) | |
6144 | { | |
6145 | d++; | |
6146 | while (isALNUM(*s) && d < e) { | |
6147 | *d++ = *s++; | |
6148 | } | |
6149 | if (d >= e) | |
cea2e8a9 | 6150 | Perl_croak(aTHX_ ident_too_long); |
2b92dfce | 6151 | *d = '\0'; |
79072805 LW |
6152 | } |
6153 | if (*s == '}') { | |
6154 | s++; | |
3280af22 NIS |
6155 | if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) |
6156 | PL_lex_state = LEX_INTERPEND; | |
748a9306 LW |
6157 | if (funny == '#') |
6158 | funny = '@'; | |
d008e5eb | 6159 | if (PL_lex_state == LEX_NORMAL) { |
d008e5eb | 6160 | if (ckWARN(WARN_AMBIGUOUS) && |
864dbfa3 | 6161 | (keyword(dest, d - dest) || get_cv(dest, FALSE))) |
d008e5eb | 6162 | { |
cea2e8a9 | 6163 | Perl_warner(aTHX_ WARN_AMBIGUOUS, |
d008e5eb GS |
6164 | "Ambiguous use of %c{%s} resolved to %c%s", |
6165 | funny, dest, funny, dest); | |
6166 | } | |
6167 | } | |
79072805 LW |
6168 | } |
6169 | else { | |
6170 | s = bracket; /* let the parser handle it */ | |
93a17b20 | 6171 | *dest = '\0'; |
79072805 LW |
6172 | } |
6173 | } | |
3280af22 NIS |
6174 | else if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets && !intuit_more(s)) |
6175 | PL_lex_state = LEX_INTERPEND; | |
378cc40b LW |
6176 | return s; |
6177 | } | |
6178 | ||
cea2e8a9 GS |
6179 | void |
6180 | Perl_pmflag(pTHX_ U16 *pmfl, int ch) | |
a0d0e21e | 6181 | { |
bbce6d69 | 6182 | if (ch == 'i') |
a0d0e21e | 6183 | *pmfl |= PMf_FOLD; |
a0d0e21e LW |
6184 | else if (ch == 'g') |
6185 | *pmfl |= PMf_GLOBAL; | |
c90c0ff4 | 6186 | else if (ch == 'c') |
6187 | *pmfl |= PMf_CONTINUE; | |
a0d0e21e LW |
6188 | else if (ch == 'o') |
6189 | *pmfl |= PMf_KEEP; | |
6190 | else if (ch == 'm') | |
6191 | *pmfl |= PMf_MULTILINE; | |
6192 | else if (ch == 's') | |
6193 | *pmfl |= PMf_SINGLELINE; | |
6194 | else if (ch == 'x') | |
6195 | *pmfl |= PMf_EXTENDED; | |
6196 | } | |
378cc40b | 6197 | |
76e3520e | 6198 | STATIC char * |
cea2e8a9 | 6199 | S_scan_pat(pTHX_ char *start, I32 type) |
378cc40b | 6200 | { |
79072805 LW |
6201 | PMOP *pm; |
6202 | char *s; | |
378cc40b | 6203 | |
09bef843 | 6204 | s = scan_str(start,FALSE,FALSE); |
37fd879b | 6205 | if (!s) |
cea2e8a9 | 6206 | Perl_croak(aTHX_ "Search pattern not terminated"); |
bbce6d69 | 6207 | |
8782bef2 | 6208 | pm = (PMOP*)newPMOP(type, 0); |
3280af22 | 6209 | if (PL_multi_open == '?') |
79072805 | 6210 | pm->op_pmflags |= PMf_ONCE; |
8782bef2 GB |
6211 | if(type == OP_QR) { |
6212 | while (*s && strchr("iomsx", *s)) | |
6213 | pmflag(&pm->op_pmflags,*s++); | |
6214 | } | |
6215 | else { | |
6216 | while (*s && strchr("iogcmsx", *s)) | |
6217 | pmflag(&pm->op_pmflags,*s++); | |
6218 | } | |
4633a7c4 | 6219 | pm->op_pmpermflags = pm->op_pmflags; |
bbce6d69 | 6220 | |
3280af22 | 6221 | PL_lex_op = (OP*)pm; |
79072805 | 6222 | yylval.ival = OP_MATCH; |
378cc40b LW |
6223 | return s; |
6224 | } | |
6225 | ||
76e3520e | 6226 | STATIC char * |
cea2e8a9 | 6227 | S_scan_subst(pTHX_ char *start) |
79072805 | 6228 | { |
a0d0e21e | 6229 | register char *s; |
79072805 | 6230 | register PMOP *pm; |
4fdae800 | 6231 | I32 first_start; |
79072805 LW |
6232 | I32 es = 0; |
6233 | ||
79072805 LW |
6234 | yylval.ival = OP_NULL; |
6235 | ||
09bef843 | 6236 | s = scan_str(start,FALSE,FALSE); |
79072805 | 6237 | |
37fd879b | 6238 | if (!s) |
cea2e8a9 | 6239 | Perl_croak(aTHX_ "Substitution pattern not terminated"); |
79072805 | 6240 | |
3280af22 | 6241 | if (s[-1] == PL_multi_open) |
79072805 LW |
6242 | s--; |
6243 | ||
3280af22 | 6244 | first_start = PL_multi_start; |
09bef843 | 6245 | s = scan_str(s,FALSE,FALSE); |
79072805 | 6246 | if (!s) { |
37fd879b | 6247 | if (PL_lex_stuff) { |
3280af22 | 6248 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
6249 | PL_lex_stuff = Nullsv; |
6250 | } | |
cea2e8a9 | 6251 | Perl_croak(aTHX_ "Substitution replacement not terminated"); |
a687059c | 6252 | } |
3280af22 | 6253 | PL_multi_start = first_start; /* so whole substitution is taken together */ |
2f3197b3 | 6254 | |
79072805 | 6255 | pm = (PMOP*)newPMOP(OP_SUBST, 0); |
48c036b1 | 6256 | while (*s) { |
a687059c LW |
6257 | if (*s == 'e') { |
6258 | s++; | |
2f3197b3 | 6259 | es++; |
a687059c | 6260 | } |
b3eb6a9b | 6261 | else if (strchr("iogcmsx", *s)) |
a0d0e21e | 6262 | pmflag(&pm->op_pmflags,*s++); |
48c036b1 GS |
6263 | else |
6264 | break; | |
378cc40b | 6265 | } |
79072805 LW |
6266 | |
6267 | if (es) { | |
6268 | SV *repl; | |
0244c3a4 GS |
6269 | PL_sublex_info.super_bufptr = s; |
6270 | PL_sublex_info.super_bufend = PL_bufend; | |
6271 | PL_multi_end = 0; | |
79072805 | 6272 | pm->op_pmflags |= PMf_EVAL; |
79cb57f6 | 6273 | repl = newSVpvn("",0); |
463ee0b2 | 6274 | while (es-- > 0) |
a0d0e21e | 6275 | sv_catpv(repl, es ? "eval " : "do "); |
79072805 | 6276 | sv_catpvn(repl, "{ ", 2); |
3280af22 | 6277 | sv_catsv(repl, PL_lex_repl); |
79072805 | 6278 | sv_catpvn(repl, " };", 2); |
25da4f38 | 6279 | SvEVALED_on(repl); |
3280af22 NIS |
6280 | SvREFCNT_dec(PL_lex_repl); |
6281 | PL_lex_repl = repl; | |
378cc40b | 6282 | } |
79072805 | 6283 | |
4633a7c4 | 6284 | pm->op_pmpermflags = pm->op_pmflags; |
3280af22 | 6285 | PL_lex_op = (OP*)pm; |
79072805 | 6286 | yylval.ival = OP_SUBST; |
378cc40b LW |
6287 | return s; |
6288 | } | |
6289 | ||
76e3520e | 6290 | STATIC char * |
cea2e8a9 | 6291 | S_scan_trans(pTHX_ char *start) |
378cc40b | 6292 | { |
a0d0e21e | 6293 | register char* s; |
11343788 | 6294 | OP *o; |
79072805 LW |
6295 | short *tbl; |
6296 | I32 squash; | |
a0ed51b3 | 6297 | I32 del; |
79072805 LW |
6298 | I32 complement; |
6299 | ||
6300 | yylval.ival = OP_NULL; | |
6301 | ||
09bef843 | 6302 | s = scan_str(start,FALSE,FALSE); |
37fd879b | 6303 | if (!s) |
cea2e8a9 | 6304 | Perl_croak(aTHX_ "Transliteration pattern not terminated"); |
3280af22 | 6305 | if (s[-1] == PL_multi_open) |
2f3197b3 LW |
6306 | s--; |
6307 | ||
09bef843 | 6308 | s = scan_str(s,FALSE,FALSE); |
79072805 | 6309 | if (!s) { |
37fd879b | 6310 | if (PL_lex_stuff) { |
3280af22 | 6311 | SvREFCNT_dec(PL_lex_stuff); |
37fd879b HS |
6312 | PL_lex_stuff = Nullsv; |
6313 | } | |
cea2e8a9 | 6314 | Perl_croak(aTHX_ "Transliteration replacement not terminated"); |
a687059c | 6315 | } |
79072805 | 6316 | |
a0ed51b3 | 6317 | complement = del = squash = 0; |
6940069f | 6318 | while (strchr("cds", *s)) { |
395c3793 | 6319 | if (*s == 'c') |
79072805 | 6320 | complement = OPpTRANS_COMPLEMENT; |
395c3793 | 6321 | else if (*s == 'd') |
a0ed51b3 LW |
6322 | del = OPpTRANS_DELETE; |
6323 | else if (*s == 's') | |
79072805 | 6324 | squash = OPpTRANS_SQUASH; |
395c3793 LW |
6325 | s++; |
6326 | } | |
8973db79 JH |
6327 | |
6328 | New(803, tbl, complement&&!del?258:256, short); | |
6329 | o = newPVOP(OP_TRANS, 0, (char*)tbl); | |
7948272d NIS |
6330 | o->op_private = del|squash|complement| |
6331 | (DO_UTF8(PL_lex_stuff)? OPpTRANS_FROM_UTF : 0)| | |
6332 | (DO_UTF8(PL_lex_repl) ? OPpTRANS_TO_UTF : 0); | |
79072805 | 6333 | |
3280af22 | 6334 | PL_lex_op = o; |
79072805 LW |
6335 | yylval.ival = OP_TRANS; |
6336 | return s; | |
6337 | } | |
6338 | ||
76e3520e | 6339 | STATIC char * |
cea2e8a9 | 6340 | S_scan_heredoc(pTHX_ register char *s) |
79072805 LW |
6341 | { |
6342 | SV *herewas; | |
6343 | I32 op_type = OP_SCALAR; | |
6344 | I32 len; | |
6345 | SV *tmpstr; | |
6346 | char term; | |
6347 | register char *d; | |
fc36a67e | 6348 | register char *e; |
4633a7c4 | 6349 | char *peek; |
3280af22 | 6350 | int outer = (PL_rsfp && !(PL_lex_inwhat == OP_SCALAR)); |
79072805 LW |
6351 | |
6352 | s += 2; | |
3280af22 NIS |
6353 | d = PL_tokenbuf; |
6354 | e = PL_tokenbuf + sizeof PL_tokenbuf - 1; | |
fd2d0953 | 6355 | if (!outer) |
79072805 | 6356 | *d++ = '\n'; |
bf4acbe4 | 6357 | for (peek = s; SPACE_OR_TAB(*peek); peek++) ; |
4633a7c4 LW |
6358 | if (*peek && strchr("`'\"",*peek)) { |
6359 | s = peek; | |
79072805 | 6360 | term = *s++; |
3280af22 | 6361 | s = delimcpy(d, e, s, PL_bufend, term, &len); |
fc36a67e | 6362 | d += len; |
3280af22 | 6363 | if (s < PL_bufend) |
79072805 | 6364 | s++; |
79072805 LW |
6365 | } |
6366 | else { | |
6367 | if (*s == '\\') | |
6368 | s++, term = '\''; | |
6369 | else | |
6370 | term = '"'; | |
7e2040f0 | 6371 | if (!isALNUM_lazy_if(s,UTF)) |
4633a7c4 | 6372 | deprecate("bare << to mean <<\"\""); |
7e2040f0 | 6373 | for (; isALNUM_lazy_if(s,UTF); s++) { |
fc36a67e | 6374 | if (d < e) |
6375 | *d++ = *s; | |
6376 | } | |
6377 | } | |
3280af22 | 6378 | if (d >= PL_tokenbuf + sizeof PL_tokenbuf - 1) |
cea2e8a9 | 6379 | Perl_croak(aTHX_ "Delimiter for here document is too long"); |
79072805 LW |
6380 | *d++ = '\n'; |
6381 | *d = '\0'; | |
3280af22 | 6382 | len = d - PL_tokenbuf; |
6a27c188 | 6383 | #ifndef PERL_STRICT_CR |
f63a84b2 LW |
6384 | d = strchr(s, '\r'); |
6385 | if (d) { | |
6386 | char *olds = s; | |
6387 | s = d; | |
3280af22 | 6388 | while (s < PL_bufend) { |
f63a84b2 LW |
6389 | if (*s == '\r') { |
6390 | *d++ = '\n'; | |
6391 | if (*++s == '\n') | |
6392 | s++; | |
6393 | } | |
6394 | else if (*s == '\n' && s[1] == '\r') { /* \015\013 on a mac? */ | |
6395 | *d++ = *s++; | |
6396 | s++; | |
6397 | } | |
6398 | else | |
6399 | *d++ = *s++; | |
6400 | } | |
6401 | *d = '\0'; | |
3280af22 NIS |
6402 | PL_bufend = d; |
6403 | SvCUR_set(PL_linestr, PL_bufend - SvPVX(PL_linestr)); | |
f63a84b2 LW |
6404 | s = olds; |
6405 | } | |
6406 | #endif | |
79072805 | 6407 | d = "\n"; |
3280af22 | 6408 | if (outer || !(d=ninstr(s,PL_bufend,d,d+1))) |
79cb57f6 | 6409 | herewas = newSVpvn(s,PL_bufend-s); |
79072805 | 6410 | else |
79cb57f6 | 6411 | s--, herewas = newSVpvn(s,d-s); |
79072805 | 6412 | s += SvCUR(herewas); |
748a9306 | 6413 | |
8d6dde3e | 6414 | tmpstr = NEWSV(87,79); |
748a9306 LW |
6415 | sv_upgrade(tmpstr, SVt_PVIV); |
6416 | if (term == '\'') { | |
79072805 | 6417 | op_type = OP_CONST; |
748a9306 LW |
6418 | SvIVX(tmpstr) = -1; |
6419 | } | |
6420 | else if (term == '`') { | |
79072805 | 6421 | op_type = OP_BACKTICK; |
748a9306 LW |
6422 | SvIVX(tmpstr) = '\\'; |
6423 | } | |
79072805 LW |
6424 | |
6425 | CLINE; | |
57843af0 | 6426 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 NIS |
6427 | PL_multi_open = PL_multi_close = '<'; |
6428 | term = *PL_tokenbuf; | |
0244c3a4 GS |
6429 | if (PL_lex_inwhat == OP_SUBST && PL_in_eval && !PL_rsfp) { |
6430 | char *bufptr = PL_sublex_info.super_bufptr; | |
6431 | char *bufend = PL_sublex_info.super_bufend; | |
6432 | char *olds = s - SvCUR(herewas); | |
6433 | s = strchr(bufptr, '\n'); | |
6434 | if (!s) | |
6435 | s = bufend; | |
6436 | d = s; | |
6437 | while (s < bufend && | |
6438 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
6439 | if (*s++ == '\n') | |
57843af0 | 6440 | CopLINE_inc(PL_curcop); |
0244c3a4 GS |
6441 | } |
6442 | if (s >= bufend) { | |
57843af0 | 6443 | CopLINE_set(PL_curcop, PL_multi_start); |
0244c3a4 GS |
6444 | missingterm(PL_tokenbuf); |
6445 | } | |
6446 | sv_setpvn(herewas,bufptr,d-bufptr+1); | |
6447 | sv_setpvn(tmpstr,d+1,s-d); | |
6448 | s += len - 1; | |
6449 | sv_catpvn(herewas,s,bufend-s); | |
6450 | (void)strcpy(bufptr,SvPVX(herewas)); | |
6451 | ||
6452 | s = olds; | |
6453 | goto retval; | |
6454 | } | |
6455 | else if (!outer) { | |
79072805 | 6456 | d = s; |
3280af22 NIS |
6457 | while (s < PL_bufend && |
6458 | (*s != term || memNE(s,PL_tokenbuf,len)) ) { | |
79072805 | 6459 | if (*s++ == '\n') |
57843af0 | 6460 | CopLINE_inc(PL_curcop); |
79072805 | 6461 | } |
3280af22 | 6462 | if (s >= PL_bufend) { |
57843af0 | 6463 | CopLINE_set(PL_curcop, PL_multi_start); |
3280af22 | 6464 | missingterm(PL_tokenbuf); |
79072805 LW |
6465 | } |
6466 | sv_setpvn(tmpstr,d+1,s-d); | |
6467 | s += len - 1; | |
57843af0 | 6468 | CopLINE_inc(PL_curcop); /* the preceding stmt passes a newline */ |
49d8d3a1 | 6469 | |
3280af22 NIS |
6470 | sv_catpvn(herewas,s,PL_bufend-s); |
6471 | sv_setsv(PL_linestr,herewas); | |
6472 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart = SvPVX(PL_linestr); | |
6473 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 6474 | PL_last_lop = PL_last_uni = Nullch; |
79072805 LW |
6475 | } |
6476 | else | |
6477 | sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */ | |
3280af22 | 6478 | while (s >= PL_bufend) { /* multiple line string? */ |
fd2d0953 | 6479 | if (!outer || |
3280af22 | 6480 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { |
57843af0 | 6481 | CopLINE_set(PL_curcop, PL_multi_start); |
3280af22 | 6482 | missingterm(PL_tokenbuf); |
79072805 | 6483 | } |
57843af0 | 6484 | CopLINE_inc(PL_curcop); |
3280af22 | 6485 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
207e3d1a | 6486 | PL_last_lop = PL_last_uni = Nullch; |
6a27c188 | 6487 | #ifndef PERL_STRICT_CR |
3280af22 | 6488 | if (PL_bufend - PL_linestart >= 2) { |
a1529941 NIS |
6489 | if ((PL_bufend[-2] == '\r' && PL_bufend[-1] == '\n') || |
6490 | (PL_bufend[-2] == '\n' && PL_bufend[-1] == '\r')) | |
c6f14548 | 6491 | { |
3280af22 NIS |
6492 | PL_bufend[-2] = '\n'; |
6493 | PL_bufend--; | |
6494 | SvCUR_set(PL_linestr, PL_bufend - SvPVX(PL_linestr)); | |
f63a84b2 | 6495 | } |
3280af22 NIS |
6496 | else if (PL_bufend[-1] == '\r') |
6497 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 6498 | } |
3280af22 NIS |
6499 | else if (PL_bufend - PL_linestart == 1 && PL_bufend[-1] == '\r') |
6500 | PL_bufend[-1] = '\n'; | |
f63a84b2 | 6501 | #endif |
3280af22 | 6502 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
79072805 LW |
6503 | SV *sv = NEWSV(88,0); |
6504 | ||
93a17b20 | 6505 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 6506 | sv_setsv(sv,PL_linestr); |
57843af0 | 6507 | av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop),sv); |
79072805 | 6508 | } |
3280af22 NIS |
6509 | if (*s == term && memEQ(s,PL_tokenbuf,len)) { |
6510 | s = PL_bufend - 1; | |
79072805 | 6511 | *s = ' '; |
3280af22 NIS |
6512 | sv_catsv(PL_linestr,herewas); |
6513 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
79072805 LW |
6514 | } |
6515 | else { | |
3280af22 NIS |
6516 | s = PL_bufend; |
6517 | sv_catsv(tmpstr,PL_linestr); | |
395c3793 LW |
6518 | } |
6519 | } | |
79072805 | 6520 | s++; |
0244c3a4 | 6521 | retval: |
57843af0 | 6522 | PL_multi_end = CopLINE(PL_curcop); |
79072805 LW |
6523 | if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) { |
6524 | SvLEN_set(tmpstr, SvCUR(tmpstr) + 1); | |
463ee0b2 | 6525 | Renew(SvPVX(tmpstr), SvLEN(tmpstr), char); |
79072805 | 6526 | } |
8990e307 | 6527 | SvREFCNT_dec(herewas); |
7948272d NIS |
6528 | if (UTF && !IN_BYTE && is_utf8_string((U8*)SvPVX(tmpstr), SvCUR(tmpstr))) |
6529 | SvUTF8_on(tmpstr); | |
3280af22 | 6530 | PL_lex_stuff = tmpstr; |
79072805 LW |
6531 | yylval.ival = op_type; |
6532 | return s; | |
6533 | } | |
6534 | ||
02aa26ce NT |
6535 | /* scan_inputsymbol |
6536 | takes: current position in input buffer | |
6537 | returns: new position in input buffer | |
6538 | side-effects: yylval and lex_op are set. | |
6539 | ||
6540 | This code handles: | |
6541 | ||
6542 | <> read from ARGV | |
6543 | <FH> read from filehandle | |
6544 | <pkg::FH> read from package qualified filehandle | |
6545 | <pkg'FH> read from package qualified filehandle | |
6546 | <$fh> read from filehandle in $fh | |
6547 | <*.h> filename glob | |
6548 | ||
6549 | */ | |
6550 | ||
76e3520e | 6551 | STATIC char * |
cea2e8a9 | 6552 | S_scan_inputsymbol(pTHX_ char *start) |
79072805 | 6553 | { |
02aa26ce | 6554 | register char *s = start; /* current position in buffer */ |
79072805 | 6555 | register char *d; |
fc36a67e | 6556 | register char *e; |
1b420867 | 6557 | char *end; |
79072805 LW |
6558 | I32 len; |
6559 | ||
3280af22 NIS |
6560 | d = PL_tokenbuf; /* start of temp holding space */ |
6561 | e = PL_tokenbuf + sizeof PL_tokenbuf; /* end of temp holding space */ | |
1b420867 GS |
6562 | end = strchr(s, '\n'); |
6563 | if (!end) | |
6564 | end = PL_bufend; | |
6565 | s = delimcpy(d, e, s + 1, end, '>', &len); /* extract until > */ | |
02aa26ce NT |
6566 | |
6567 | /* die if we didn't have space for the contents of the <>, | |
1b420867 | 6568 | or if it didn't end, or if we see a newline |
02aa26ce NT |
6569 | */ |
6570 | ||
3280af22 | 6571 | if (len >= sizeof PL_tokenbuf) |
cea2e8a9 | 6572 | Perl_croak(aTHX_ "Excessively long <> operator"); |
1b420867 | 6573 | if (s >= end) |
cea2e8a9 | 6574 | Perl_croak(aTHX_ "Unterminated <> operator"); |
02aa26ce | 6575 | |
fc36a67e | 6576 | s++; |
02aa26ce NT |
6577 | |
6578 | /* check for <$fh> | |
6579 | Remember, only scalar variables are interpreted as filehandles by | |
6580 | this code. Anything more complex (e.g., <$fh{$num}>) will be | |
6581 | treated as a glob() call. | |
6582 | This code makes use of the fact that except for the $ at the front, | |
6583 | a scalar variable and a filehandle look the same. | |
6584 | */ | |
4633a7c4 | 6585 | if (*d == '$' && d[1]) d++; |
02aa26ce NT |
6586 | |
6587 | /* allow <Pkg'VALUE> or <Pkg::VALUE> */ | |
7e2040f0 | 6588 | while (*d && (isALNUM_lazy_if(d,UTF) || *d == '\'' || *d == ':')) |
79072805 | 6589 | d++; |
02aa26ce NT |
6590 | |
6591 | /* If we've tried to read what we allow filehandles to look like, and | |
6592 | there's still text left, then it must be a glob() and not a getline. | |
6593 | Use scan_str to pull out the stuff between the <> and treat it | |
6594 | as nothing more than a string. | |
6595 | */ | |
6596 | ||
3280af22 | 6597 | if (d - PL_tokenbuf != len) { |
79072805 LW |
6598 | yylval.ival = OP_GLOB; |
6599 | set_csh(); | |
09bef843 | 6600 | s = scan_str(start,FALSE,FALSE); |
79072805 | 6601 | if (!s) |
cea2e8a9 | 6602 | Perl_croak(aTHX_ "Glob not terminated"); |
79072805 LW |
6603 | return s; |
6604 | } | |
395c3793 | 6605 | else { |
02aa26ce | 6606 | /* we're in a filehandle read situation */ |
3280af22 | 6607 | d = PL_tokenbuf; |
02aa26ce NT |
6608 | |
6609 | /* turn <> into <ARGV> */ | |
79072805 LW |
6610 | if (!len) |
6611 | (void)strcpy(d,"ARGV"); | |
02aa26ce NT |
6612 | |
6613 | /* if <$fh>, create the ops to turn the variable into a | |
6614 | filehandle | |
6615 | */ | |
79072805 | 6616 | if (*d == '$') { |
a0d0e21e | 6617 | I32 tmp; |
02aa26ce NT |
6618 | |
6619 | /* try to find it in the pad for this block, otherwise find | |
6620 | add symbol table ops | |
6621 | */ | |
11343788 MB |
6622 | if ((tmp = pad_findmy(d)) != NOT_IN_PAD) { |
6623 | OP *o = newOP(OP_PADSV, 0); | |
6624 | o->op_targ = tmp; | |
f5284f61 | 6625 | PL_lex_op = (OP*)newUNOP(OP_READLINE, 0, o); |
a0d0e21e LW |
6626 | } |
6627 | else { | |
6628 | GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV); | |
3280af22 | 6629 | PL_lex_op = (OP*)newUNOP(OP_READLINE, 0, |
a0d0e21e | 6630 | newUNOP(OP_RV2SV, 0, |
f5284f61 | 6631 | newGVOP(OP_GV, 0, gv))); |
a0d0e21e | 6632 | } |
f5284f61 IZ |
6633 | PL_lex_op->op_flags |= OPf_SPECIAL; |
6634 | /* we created the ops in PL_lex_op, so make yylval.ival a null op */ | |
79072805 LW |
6635 | yylval.ival = OP_NULL; |
6636 | } | |
02aa26ce NT |
6637 | |
6638 | /* If it's none of the above, it must be a literal filehandle | |
6639 | (<Foo::BAR> or <FOO>) so build a simple readline OP */ | |
79072805 | 6640 | else { |
85e6fe83 | 6641 | GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO); |
3280af22 | 6642 | PL_lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv)); |
79072805 LW |
6643 | yylval.ival = OP_NULL; |
6644 | } | |
6645 | } | |
02aa26ce | 6646 | |
79072805 LW |
6647 | return s; |
6648 | } | |
6649 | ||
02aa26ce NT |
6650 | |
6651 | /* scan_str | |
6652 | takes: start position in buffer | |
09bef843 SB |
6653 | keep_quoted preserve \ on the embedded delimiter(s) |
6654 | keep_delims preserve the delimiters around the string | |
02aa26ce NT |
6655 | returns: position to continue reading from buffer |
6656 | side-effects: multi_start, multi_close, lex_repl or lex_stuff, and | |
6657 | updates the read buffer. | |
6658 | ||
6659 | This subroutine pulls a string out of the input. It is called for: | |
6660 | q single quotes q(literal text) | |
6661 | ' single quotes 'literal text' | |
6662 | qq double quotes qq(interpolate $here please) | |
6663 | " double quotes "interpolate $here please" | |
6664 | qx backticks qx(/bin/ls -l) | |
6665 | ` backticks `/bin/ls -l` | |
6666 | qw quote words @EXPORT_OK = qw( func() $spam ) | |
6667 | m// regexp match m/this/ | |
6668 | s/// regexp substitute s/this/that/ | |
6669 | tr/// string transliterate tr/this/that/ | |
6670 | y/// string transliterate y/this/that/ | |
6671 | ($*@) sub prototypes sub foo ($) | |
09bef843 | 6672 | (stuff) sub attr parameters sub foo : attr(stuff) |
02aa26ce NT |
6673 | <> readline or globs <FOO>, <>, <$fh>, or <*.c> |
6674 | ||
6675 | In most of these cases (all but <>, patterns and transliterate) | |
6676 | yylex() calls scan_str(). m// makes yylex() call scan_pat() which | |
6677 | calls scan_str(). s/// makes yylex() call scan_subst() which calls | |
6678 | scan_str(). tr/// and y/// make yylex() call scan_trans() which | |
6679 | calls scan_str(). | |
4e553d73 | 6680 | |
02aa26ce NT |
6681 | It skips whitespace before the string starts, and treats the first |
6682 | character as the delimiter. If the delimiter is one of ([{< then | |
6683 | the corresponding "close" character )]}> is used as the closing | |
6684 | delimiter. It allows quoting of delimiters, and if the string has | |
6685 | balanced delimiters ([{<>}]) it allows nesting. | |
6686 | ||
37fd879b HS |
6687 | On success, the SV with the resulting string is put into lex_stuff or, |
6688 | if that is already non-NULL, into lex_repl. The second case occurs only | |
6689 | when parsing the RHS of the special constructs s/// and tr/// (y///). | |
6690 | For convenience, the terminating delimiter character is stuffed into | |
6691 | SvIVX of the SV. | |
02aa26ce NT |
6692 | */ |
6693 | ||
76e3520e | 6694 | STATIC char * |
09bef843 | 6695 | S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims) |
79072805 | 6696 | { |
02aa26ce NT |
6697 | SV *sv; /* scalar value: string */ |
6698 | char *tmps; /* temp string, used for delimiter matching */ | |
6699 | register char *s = start; /* current position in the buffer */ | |
6700 | register char term; /* terminating character */ | |
6701 | register char *to; /* current position in the sv's data */ | |
6702 | I32 brackets = 1; /* bracket nesting level */ | |
89491803 | 6703 | bool has_utf8 = FALSE; /* is there any utf8 content? */ |
02aa26ce NT |
6704 | |
6705 | /* skip space before the delimiter */ | |
fb73857a | 6706 | if (isSPACE(*s)) |
6707 | s = skipspace(s); | |
02aa26ce NT |
6708 | |
6709 | /* mark where we are, in case we need to report errors */ | |
79072805 | 6710 | CLINE; |
02aa26ce NT |
6711 | |
6712 | /* after skipping whitespace, the next character is the terminator */ | |
a0d0e21e | 6713 | term = *s; |
fd400ab9 | 6714 | if (UTF8_IS_CONTINUED(term) && UTF) |
89491803 | 6715 | has_utf8 = TRUE; |
b1c7b182 | 6716 | |
02aa26ce | 6717 | /* mark where we are */ |
57843af0 | 6718 | PL_multi_start = CopLINE(PL_curcop); |
3280af22 | 6719 | PL_multi_open = term; |
02aa26ce NT |
6720 | |
6721 | /* find corresponding closing delimiter */ | |
93a17b20 | 6722 | if (term && (tmps = strchr("([{< )]}> )]}>",term))) |
79072805 | 6723 | term = tmps[5]; |
3280af22 | 6724 | PL_multi_close = term; |
79072805 | 6725 | |
02aa26ce | 6726 | /* create a new SV to hold the contents. 87 is leak category, I'm |
8d6dde3e IZ |
6727 | assuming. 79 is the SV's initial length. What a random number. */ |
6728 | sv = NEWSV(87,79); | |
ed6116ce LW |
6729 | sv_upgrade(sv, SVt_PVIV); |
6730 | SvIVX(sv) = term; | |
a0d0e21e | 6731 | (void)SvPOK_only(sv); /* validate pointer */ |
02aa26ce NT |
6732 | |
6733 | /* move past delimiter and try to read a complete string */ | |
09bef843 SB |
6734 | if (keep_delims) |
6735 | sv_catpvn(sv, s, 1); | |
93a17b20 LW |
6736 | s++; |
6737 | for (;;) { | |
02aa26ce | 6738 | /* extend sv if need be */ |
3280af22 | 6739 | SvGROW(sv, SvCUR(sv) + (PL_bufend - s) + 1); |
02aa26ce | 6740 | /* set 'to' to the next character in the sv's string */ |
463ee0b2 | 6741 | to = SvPVX(sv)+SvCUR(sv); |
09bef843 | 6742 | |
02aa26ce | 6743 | /* if open delimiter is the close delimiter read unbridle */ |
3280af22 NIS |
6744 | if (PL_multi_open == PL_multi_close) { |
6745 | for (; s < PL_bufend; s++,to++) { | |
02aa26ce | 6746 | /* embedded newlines increment the current line number */ |
3280af22 | 6747 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 6748 | CopLINE_inc(PL_curcop); |
02aa26ce | 6749 | /* handle quoted delimiters */ |
3280af22 | 6750 | if (*s == '\\' && s+1 < PL_bufend && term != '\\') { |
09bef843 | 6751 | if (!keep_quoted && s[1] == term) |
a0d0e21e | 6752 | s++; |
02aa26ce | 6753 | /* any other quotes are simply copied straight through */ |
a0d0e21e LW |
6754 | else |
6755 | *to++ = *s++; | |
6756 | } | |
02aa26ce NT |
6757 | /* terminate when run out of buffer (the for() condition), or |
6758 | have found the terminator */ | |
93a17b20 LW |
6759 | else if (*s == term) |
6760 | break; | |
fd400ab9 | 6761 | else if (!has_utf8 && UTF8_IS_CONTINUED(*s) && UTF) |
89491803 | 6762 | has_utf8 = TRUE; |
93a17b20 LW |
6763 | *to = *s; |
6764 | } | |
6765 | } | |
02aa26ce NT |
6766 | |
6767 | /* if the terminator isn't the same as the start character (e.g., | |
6768 | matched brackets), we have to allow more in the quoting, and | |
6769 | be prepared for nested brackets. | |
6770 | */ | |
93a17b20 | 6771 | else { |
02aa26ce | 6772 | /* read until we run out of string, or we find the terminator */ |
3280af22 | 6773 | for (; s < PL_bufend; s++,to++) { |
02aa26ce | 6774 | /* embedded newlines increment the line count */ |
3280af22 | 6775 | if (*s == '\n' && !PL_rsfp) |
57843af0 | 6776 | CopLINE_inc(PL_curcop); |
02aa26ce | 6777 | /* backslashes can escape the open or closing characters */ |
3280af22 | 6778 | if (*s == '\\' && s+1 < PL_bufend) { |
09bef843 SB |
6779 | if (!keep_quoted && |
6780 | ((s[1] == PL_multi_open) || (s[1] == PL_multi_close))) | |
a0d0e21e LW |
6781 | s++; |
6782 | else | |
6783 | *to++ = *s++; | |
6784 | } | |
02aa26ce | 6785 | /* allow nested opens and closes */ |
3280af22 | 6786 | else if (*s == PL_multi_close && --brackets <= 0) |
93a17b20 | 6787 | break; |
3280af22 | 6788 | else if (*s == PL_multi_open) |
93a17b20 | 6789 | brackets++; |
fd400ab9 | 6790 | else if (!has_utf8 && UTF8_IS_CONTINUED(*s) && UTF) |
89491803 | 6791 | has_utf8 = TRUE; |
93a17b20 LW |
6792 | *to = *s; |
6793 | } | |
6794 | } | |
02aa26ce | 6795 | /* terminate the copied string and update the sv's end-of-string */ |
93a17b20 | 6796 | *to = '\0'; |
463ee0b2 | 6797 | SvCUR_set(sv, to - SvPVX(sv)); |
93a17b20 | 6798 | |
02aa26ce NT |
6799 | /* |
6800 | * this next chunk reads more into the buffer if we're not done yet | |
6801 | */ | |
6802 | ||
b1c7b182 GS |
6803 | if (s < PL_bufend) |
6804 | break; /* handle case where we are done yet :-) */ | |
79072805 | 6805 | |
6a27c188 | 6806 | #ifndef PERL_STRICT_CR |
f63a84b2 | 6807 | if (to - SvPVX(sv) >= 2) { |
c6f14548 GS |
6808 | if ((to[-2] == '\r' && to[-1] == '\n') || |
6809 | (to[-2] == '\n' && to[-1] == '\r')) | |
6810 | { | |
f63a84b2 LW |
6811 | to[-2] = '\n'; |
6812 | to--; | |
6813 | SvCUR_set(sv, to - SvPVX(sv)); | |
6814 | } | |
6815 | else if (to[-1] == '\r') | |
6816 | to[-1] = '\n'; | |
6817 | } | |
6818 | else if (to - SvPVX(sv) == 1 && to[-1] == '\r') | |
6819 | to[-1] = '\n'; | |
6820 | #endif | |
6821 | ||
02aa26ce NT |
6822 | /* if we're out of file, or a read fails, bail and reset the current |
6823 | line marker so we can report where the unterminated string began | |
6824 | */ | |
3280af22 NIS |
6825 | if (!PL_rsfp || |
6826 | !(PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = filter_gets(PL_linestr, PL_rsfp, 0))) { | |
c07a80fd | 6827 | sv_free(sv); |
57843af0 | 6828 | CopLINE_set(PL_curcop, PL_multi_start); |
79072805 LW |
6829 | return Nullch; |
6830 | } | |
02aa26ce | 6831 | /* we read a line, so increment our line counter */ |
57843af0 | 6832 | CopLINE_inc(PL_curcop); |
a0ed51b3 | 6833 | |
02aa26ce | 6834 | /* update debugger info */ |
3280af22 | 6835 | if (PERLDB_LINE && PL_curstash != PL_debstash) { |
79072805 LW |
6836 | SV *sv = NEWSV(88,0); |
6837 | ||
93a17b20 | 6838 | sv_upgrade(sv, SVt_PVMG); |
3280af22 | 6839 | sv_setsv(sv,PL_linestr); |
57843af0 | 6840 | av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop), sv); |
395c3793 | 6841 | } |
a0ed51b3 | 6842 | |
3280af22 NIS |
6843 | /* having changed the buffer, we must update PL_bufend */ |
6844 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
207e3d1a | 6845 | PL_last_lop = PL_last_uni = Nullch; |
378cc40b | 6846 | } |
4e553d73 | 6847 | |
02aa26ce NT |
6848 | /* at this point, we have successfully read the delimited string */ |
6849 | ||
09bef843 SB |
6850 | if (keep_delims) |
6851 | sv_catpvn(sv, s, 1); | |
89491803 | 6852 | if (has_utf8) |
b1c7b182 | 6853 | SvUTF8_on(sv); |
57843af0 | 6854 | PL_multi_end = CopLINE(PL_curcop); |
79072805 | 6855 | s++; |
02aa26ce NT |
6856 | |
6857 | /* if we allocated too much space, give some back */ | |
93a17b20 LW |
6858 | if (SvCUR(sv) + 5 < SvLEN(sv)) { |
6859 | SvLEN_set(sv, SvCUR(sv) + 1); | |
463ee0b2 | 6860 | Renew(SvPVX(sv), SvLEN(sv), char); |
79072805 | 6861 | } |
02aa26ce NT |
6862 | |
6863 | /* decide whether this is the first or second quoted string we've read | |
6864 | for this op | |
6865 | */ | |
4e553d73 | 6866 | |
3280af22 NIS |
6867 | if (PL_lex_stuff) |
6868 | PL_lex_repl = sv; | |
79072805 | 6869 | else |
3280af22 | 6870 | PL_lex_stuff = sv; |
378cc40b LW |
6871 | return s; |
6872 | } | |
6873 | ||
02aa26ce NT |
6874 | /* |
6875 | scan_num | |
6876 | takes: pointer to position in buffer | |
6877 | returns: pointer to new position in buffer | |
6878 | side-effects: builds ops for the constant in yylval.op | |
6879 | ||
6880 | Read a number in any of the formats that Perl accepts: | |
6881 | ||
4f19785b | 6882 | 0(x[0-7A-F]+)|([0-7]+)|(b[01]) |
02aa26ce NT |
6883 | [\d_]+(\.[\d_]*)?[Ee](\d+) |
6884 | ||
6885 | Underbars (_) are allowed in decimal numbers. If -w is on, | |
6886 | underbars before a decimal point must be at three digit intervals. | |
6887 | ||
3280af22 | 6888 | Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the |
02aa26ce NT |
6889 | thing it reads. |
6890 | ||
6891 | If it reads a number without a decimal point or an exponent, it will | |
6892 | try converting the number to an integer and see if it can do so | |
6893 | without loss of precision. | |
6894 | */ | |
4e553d73 | 6895 | |
378cc40b | 6896 | char * |
b73d6f50 | 6897 | Perl_scan_num(pTHX_ char *start, YYSTYPE* lvalp) |
378cc40b | 6898 | { |
02aa26ce NT |
6899 | register char *s = start; /* current position in buffer */ |
6900 | register char *d; /* destination in temp buffer */ | |
6901 | register char *e; /* end of temp buffer */ | |
86554af2 | 6902 | NV nv; /* number read, as a double */ |
a7cb1f99 | 6903 | SV *sv = Nullsv; /* place to put the converted number */ |
b8403495 | 6904 | bool floatit; /* boolean: int or float? */ |
02aa26ce | 6905 | char *lastub = 0; /* position of last underbar */ |
fc36a67e | 6906 | static char number_too_long[] = "Number too long"; |
378cc40b | 6907 | |
02aa26ce NT |
6908 | /* We use the first character to decide what type of number this is */ |
6909 | ||
378cc40b | 6910 | switch (*s) { |
79072805 | 6911 | default: |
cea2e8a9 | 6912 | Perl_croak(aTHX_ "panic: scan_num"); |
4e553d73 | 6913 | |
02aa26ce | 6914 | /* if it starts with a 0, it could be an octal number, a decimal in |
a7cb1f99 | 6915 | 0.13 disguise, or a hexadecimal number, or a binary number. */ |
378cc40b LW |
6916 | case '0': |
6917 | { | |
02aa26ce NT |
6918 | /* variables: |
6919 | u holds the "number so far" | |
4f19785b WSI |
6920 | shift the power of 2 of the base |
6921 | (hex == 4, octal == 3, binary == 1) | |
02aa26ce NT |
6922 | overflowed was the number more than we can hold? |
6923 | ||
6924 | Shift is used when we add a digit. It also serves as an "are | |
4f19785b WSI |
6925 | we in octal/hex/binary?" indicator to disallow hex characters |
6926 | when in octal mode. | |
02aa26ce | 6927 | */ |
9e24b6e2 JH |
6928 | NV n = 0.0; |
6929 | UV u = 0; | |
79072805 | 6930 | I32 shift; |
9e24b6e2 JH |
6931 | bool overflowed = FALSE; |
6932 | static NV nvshift[5] = { 1.0, 2.0, 4.0, 8.0, 16.0 }; | |
6933 | static char* bases[5] = { "", "binary", "", "octal", | |
6934 | "hexadecimal" }; | |
6935 | static char* Bases[5] = { "", "Binary", "", "Octal", | |
6936 | "Hexadecimal" }; | |
6937 | static char *maxima[5] = { "", | |
6938 | "0b11111111111111111111111111111111", | |
6939 | "", | |
893fe2c2 | 6940 | "037777777777", |
9e24b6e2 JH |
6941 | "0xffffffff" }; |
6942 | char *base, *Base, *max; | |
378cc40b | 6943 | |
02aa26ce | 6944 | /* check for hex */ |
378cc40b LW |
6945 | if (s[1] == 'x') { |
6946 | shift = 4; | |
6947 | s += 2; | |
4f19785b WSI |
6948 | } else if (s[1] == 'b') { |
6949 | shift = 1; | |
6950 | s += 2; | |
378cc40b | 6951 | } |
02aa26ce | 6952 | /* check for a decimal in disguise */ |
b78218b7 | 6953 | else if (s[1] == '.' || s[1] == 'e' || s[1] == 'E') |
378cc40b | 6954 | goto decimal; |
02aa26ce | 6955 | /* so it must be octal */ |
378cc40b LW |
6956 | else |
6957 | shift = 3; | |
9e24b6e2 JH |
6958 | |
6959 | base = bases[shift]; | |
6960 | Base = Bases[shift]; | |
6961 | max = maxima[shift]; | |
02aa26ce | 6962 | |
4f19785b | 6963 | /* read the rest of the number */ |
378cc40b | 6964 | for (;;) { |
9e24b6e2 | 6965 | /* x is used in the overflow test, |
893fe2c2 | 6966 | b is the digit we're adding on. */ |
9e24b6e2 | 6967 | UV x, b; |
55497cff | 6968 | |
378cc40b | 6969 | switch (*s) { |
02aa26ce NT |
6970 | |
6971 | /* if we don't mention it, we're done */ | |
378cc40b LW |
6972 | default: |
6973 | goto out; | |
02aa26ce NT |
6974 | |
6975 | /* _ are ignored */ | |
de3bb511 LW |
6976 | case '_': |
6977 | s++; | |
6978 | break; | |
02aa26ce NT |
6979 | |
6980 | /* 8 and 9 are not octal */ | |
378cc40b | 6981 | case '8': case '9': |
4f19785b | 6982 | if (shift == 3) |
cea2e8a9 | 6983 | yyerror(Perl_form(aTHX_ "Illegal octal digit '%c'", *s)); |
378cc40b | 6984 | /* FALL THROUGH */ |
02aa26ce NT |
6985 | |
6986 | /* octal digits */ | |
4f19785b | 6987 | case '2': case '3': case '4': |
378cc40b | 6988 | case '5': case '6': case '7': |
4f19785b | 6989 | if (shift == 1) |
cea2e8a9 | 6990 | yyerror(Perl_form(aTHX_ "Illegal binary digit '%c'", *s)); |
4f19785b WSI |
6991 | /* FALL THROUGH */ |
6992 | ||
6993 | case '0': case '1': | |
02aa26ce | 6994 | b = *s++ & 15; /* ASCII digit -> value of digit */ |
55497cff | 6995 | goto digit; |
02aa26ce NT |
6996 | |
6997 | /* hex digits */ | |
378cc40b LW |
6998 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
6999 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
02aa26ce | 7000 | /* make sure they said 0x */ |
378cc40b LW |
7001 | if (shift != 4) |
7002 | goto out; | |
55497cff | 7003 | b = (*s++ & 7) + 9; |
02aa26ce NT |
7004 | |
7005 | /* Prepare to put the digit we have onto the end | |
7006 | of the number so far. We check for overflows. | |
7007 | */ | |
7008 | ||
55497cff | 7009 | digit: |
9e24b6e2 JH |
7010 | if (!overflowed) { |
7011 | x = u << shift; /* make room for the digit */ | |
7012 | ||
7013 | if ((x >> shift) != u | |
7014 | && !(PL_hints & HINT_NEW_BINARY)) { | |
9e24b6e2 JH |
7015 | overflowed = TRUE; |
7016 | n = (NV) u; | |
767a6a26 PM |
7017 | if (ckWARN_d(WARN_OVERFLOW)) |
7018 | Perl_warner(aTHX_ WARN_OVERFLOW, | |
9e24b6e2 JH |
7019 | "Integer overflow in %s number", |
7020 | base); | |
7021 | } else | |
7022 | u = x | b; /* add the digit to the end */ | |
7023 | } | |
7024 | if (overflowed) { | |
7025 | n *= nvshift[shift]; | |
7026 | /* If an NV has not enough bits in its | |
7027 | * mantissa to represent an UV this summing of | |
7028 | * small low-order numbers is a waste of time | |
7029 | * (because the NV cannot preserve the | |
7030 | * low-order bits anyway): we could just | |
7031 | * remember when did we overflow and in the | |
7032 | * end just multiply n by the right | |
7033 | * amount. */ | |
7034 | n += (NV) b; | |
55497cff | 7035 | } |
378cc40b LW |
7036 | break; |
7037 | } | |
7038 | } | |
02aa26ce NT |
7039 | |
7040 | /* if we get here, we had success: make a scalar value from | |
7041 | the number. | |
7042 | */ | |
378cc40b | 7043 | out: |
79072805 | 7044 | sv = NEWSV(92,0); |
9e24b6e2 | 7045 | if (overflowed) { |
767a6a26 PM |
7046 | if (ckWARN(WARN_PORTABLE) && n > 4294967295.0) |
7047 | Perl_warner(aTHX_ WARN_PORTABLE, | |
9e24b6e2 JH |
7048 | "%s number > %s non-portable", |
7049 | Base, max); | |
7050 | sv_setnv(sv, n); | |
7051 | } | |
7052 | else { | |
15041a67 | 7053 | #if UVSIZE > 4 |
767a6a26 PM |
7054 | if (ckWARN(WARN_PORTABLE) && u > 0xffffffff) |
7055 | Perl_warner(aTHX_ WARN_PORTABLE, | |
9e24b6e2 JH |
7056 | "%s number > %s non-portable", |
7057 | Base, max); | |
2cc4c2dc | 7058 | #endif |
9e24b6e2 JH |
7059 | sv_setuv(sv, u); |
7060 | } | |
2cc4c2dc | 7061 | if (PL_hints & HINT_NEW_BINARY) |
b3ac6de7 | 7062 | sv = new_constant(start, s - start, "binary", sv, Nullsv, NULL); |
378cc40b LW |
7063 | } |
7064 | break; | |
02aa26ce NT |
7065 | |
7066 | /* | |
7067 | handle decimal numbers. | |
7068 | we're also sent here when we read a 0 as the first digit | |
7069 | */ | |
378cc40b LW |
7070 | case '1': case '2': case '3': case '4': case '5': |
7071 | case '6': case '7': case '8': case '9': case '.': | |
7072 | decimal: | |
3280af22 NIS |
7073 | d = PL_tokenbuf; |
7074 | e = PL_tokenbuf + sizeof PL_tokenbuf - 6; /* room for various punctuation */ | |
79072805 | 7075 | floatit = FALSE; |
02aa26ce NT |
7076 | |
7077 | /* read next group of digits and _ and copy into d */ | |
de3bb511 | 7078 | while (isDIGIT(*s) || *s == '_') { |
4e553d73 | 7079 | /* skip underscores, checking for misplaced ones |
02aa26ce NT |
7080 | if -w is on |
7081 | */ | |
93a17b20 | 7082 | if (*s == '_') { |
599cee73 | 7083 | if (ckWARN(WARN_SYNTAX) && lastub && s - lastub != 3) |
cea2e8a9 | 7084 | Perl_warner(aTHX_ WARN_SYNTAX, "Misplaced _ in number"); |
93a17b20 LW |
7085 | lastub = ++s; |
7086 | } | |
fc36a67e | 7087 | else { |
02aa26ce | 7088 | /* check for end of fixed-length buffer */ |
fc36a67e | 7089 | if (d >= e) |
cea2e8a9 | 7090 | Perl_croak(aTHX_ number_too_long); |
02aa26ce | 7091 | /* if we're ok, copy the character */ |
378cc40b | 7092 | *d++ = *s++; |
fc36a67e | 7093 | } |
378cc40b | 7094 | } |
02aa26ce NT |
7095 | |
7096 | /* final misplaced underbar check */ | |
d008e5eb | 7097 | if (lastub && s - lastub != 3) { |
d008e5eb | 7098 | if (ckWARN(WARN_SYNTAX)) |
cea2e8a9 | 7099 | Perl_warner(aTHX_ WARN_SYNTAX, "Misplaced _ in number"); |
d008e5eb | 7100 | } |
02aa26ce NT |
7101 | |
7102 | /* read a decimal portion if there is one. avoid | |
7103 | 3..5 being interpreted as the number 3. followed | |
7104 | by .5 | |
7105 | */ | |
2f3197b3 | 7106 | if (*s == '.' && s[1] != '.') { |
79072805 | 7107 | floatit = TRUE; |
378cc40b | 7108 | *d++ = *s++; |
02aa26ce NT |
7109 | |
7110 | /* copy, ignoring underbars, until we run out of | |
7111 | digits. Note: no misplaced underbar checks! | |
7112 | */ | |
fc36a67e | 7113 | for (; isDIGIT(*s) || *s == '_'; s++) { |
02aa26ce | 7114 | /* fixed length buffer check */ |
fc36a67e | 7115 | if (d >= e) |
cea2e8a9 | 7116 | Perl_croak(aTHX_ number_too_long); |
fc36a67e | 7117 | if (*s != '_') |
7118 | *d++ = *s; | |
378cc40b | 7119 | } |
dd629d5b GS |
7120 | if (*s == '.' && isDIGIT(s[1])) { |
7121 | /* oops, it's really a v-string, but without the "v" */ | |
7122 | s = start - 1; | |
7123 | goto vstring; | |
7124 | } | |
378cc40b | 7125 | } |
02aa26ce NT |
7126 | |
7127 | /* read exponent part, if present */ | |
93a17b20 | 7128 | if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) { |
79072805 LW |
7129 | floatit = TRUE; |
7130 | s++; | |
02aa26ce NT |
7131 | |
7132 | /* regardless of whether user said 3E5 or 3e5, use lower 'e' */ | |
79072805 | 7133 | *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */ |
02aa26ce NT |
7134 | |
7135 | /* allow positive or negative exponent */ | |
378cc40b LW |
7136 | if (*s == '+' || *s == '-') |
7137 | *d++ = *s++; | |
02aa26ce NT |
7138 | |
7139 | /* read digits of exponent (no underbars :-) */ | |
fc36a67e | 7140 | while (isDIGIT(*s)) { |
7141 | if (d >= e) | |
cea2e8a9 | 7142 | Perl_croak(aTHX_ number_too_long); |
378cc40b | 7143 | *d++ = *s++; |
fc36a67e | 7144 | } |
378cc40b | 7145 | } |
02aa26ce NT |
7146 | |
7147 | /* terminate the string */ | |
378cc40b | 7148 | *d = '\0'; |
02aa26ce NT |
7149 | |
7150 | /* make an sv from the string */ | |
79072805 | 7151 | sv = NEWSV(92,0); |
097ee67d | 7152 | |
86554af2 | 7153 | #if defined(Strtol) && defined(Strtoul) |
0b7fceb9 MU |
7154 | |
7155 | /* | |
0b7fceb9 MU |
7156 | strtol/strtoll sets errno to ERANGE if the number is too big |
7157 | for an integer. We try to do an integer conversion first | |
7158 | if no characters indicating "float" have been found. | |
7159 | */ | |
7160 | ||
7161 | if (!floatit) { | |
0b7fceb9 MU |
7162 | IV iv; |
7163 | UV uv; | |
7164 | errno = 0; | |
c239479b | 7165 | if (*PL_tokenbuf == '-') |
96989be3 | 7166 | iv = Strtol(PL_tokenbuf, (char**)NULL, 10); |
c239479b | 7167 | else |
96989be3 | 7168 | uv = Strtoul(PL_tokenbuf, (char**)NULL, 10); |
55eb892c | 7169 | if (errno) |
86554af2 | 7170 | floatit = TRUE; /* Probably just too large. */ |
0b7fceb9 MU |
7171 | else if (*PL_tokenbuf == '-') |
7172 | sv_setiv(sv, iv); | |
86554af2 JH |
7173 | else if (uv <= IV_MAX) |
7174 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ | |
0b7fceb9 | 7175 | else |
c239479b | 7176 | sv_setuv(sv, uv); |
0b7fceb9 MU |
7177 | } |
7178 | if (floatit) { | |
86554af2 JH |
7179 | nv = Atof(PL_tokenbuf); |
7180 | sv_setnv(sv, nv); | |
7181 | } | |
7182 | #else | |
7183 | /* | |
7184 | No working strtou?ll?. | |
7185 | ||
7186 | Unfortunately atol() doesn't do range checks (returning | |
7187 | LONG_MIN/LONG_MAX, and setting errno to ERANGE on overflows) | |
7188 | everywhere [1], so we cannot use use atol() (or atoll()). | |
7189 | If we could, they would be used, as Atol(), very much like | |
7190 | Strtol() and Strtoul() are used above. | |
7191 | ||
7192 | [1] XXX Configure test needed to check for atol() | |
d6c14000 JH |
7193 | (and atoll()) overflow behaviour XXX |
7194 | ||
7195 | --jhi | |
86554af2 JH |
7196 | |
7197 | We need to do this the hard way. */ | |
7198 | ||
7199 | nv = Atof(PL_tokenbuf); | |
7200 | ||
7201 | /* See if we can make do with an integer value without loss of | |
7202 | precision. We use U_V to cast to a UV, because some | |
7203 | compilers have issues. Then we try casting it back and see | |
7204 | if it was the same [1]. We only do this if we know we | |
7205 | specifically read an integer. If floatit is true, then we | |
4e553d73 | 7206 | don't need to do the conversion at all. |
86554af2 JH |
7207 | |
7208 | [1] Note that this is lossy if our NVs cannot preserve our | |
d6c14000 JH |
7209 | UVs. There are metaconfig defines NV_PRESERVES_UV (a boolean) |
7210 | and NV_PRESERVES_UV_BITS (a number), but in general we really | |
7211 | do hope all such potentially lossy platforms have strtou?ll? | |
7212 | to do a lossless IV/UV conversion. | |
7213 | ||
7214 | Maybe could do some tricks with DBL_DIG, LDBL_DIG and | |
7215 | DBL_MANT_DIG and LDBL_MANT_DIG (these are already available | |
7216 | as NV_DIG and NV_MANT_DIG)? | |
4e553d73 | 7217 | |
d6c14000 | 7218 | --jhi |
86554af2 JH |
7219 | */ |
7220 | { | |
7221 | UV uv = U_V(nv); | |
7222 | if (!floatit && (NV)uv == nv) { | |
7223 | if (uv <= IV_MAX) | |
7224 | sv_setiv(sv, uv); /* Prefer IVs over UVs. */ | |
7225 | else | |
7226 | sv_setuv(sv, uv); | |
7227 | } | |
7228 | else | |
7229 | sv_setnv(sv, nv); | |
96989be3 | 7230 | } |
0b7fceb9 | 7231 | #endif |
b8403495 JH |
7232 | if ( floatit ? (PL_hints & HINT_NEW_FLOAT) : |
7233 | (PL_hints & HINT_NEW_INTEGER) ) | |
4e553d73 | 7234 | sv = new_constant(PL_tokenbuf, d - PL_tokenbuf, |
b8403495 JH |
7235 | (floatit ? "float" : "integer"), |
7236 | sv, Nullsv, NULL); | |
378cc40b | 7237 | break; |
0b7fceb9 | 7238 | |
e312add1 | 7239 | /* if it starts with a v, it could be a v-string */ |
a7cb1f99 | 7240 | case 'v': |
dd629d5b | 7241 | vstring: |
a7cb1f99 | 7242 | { |
a7cb1f99 GS |
7243 | char *pos = s; |
7244 | pos++; | |
dd629d5b | 7245 | while (isDIGIT(*pos) || *pos == '_') |
a7cb1f99 | 7246 | pos++; |
e526c9e6 | 7247 | if (!isALPHA(*pos)) { |
9aa983d2 | 7248 | UV rev, revmax = 0; |
ad391ad9 | 7249 | U8 tmpbuf[UTF8_MAXLEN+1]; |
a7cb1f99 | 7250 | U8 *tmpend; |
a7cb1f99 GS |
7251 | s++; /* get past 'v' */ |
7252 | ||
7253 | sv = NEWSV(92,5); | |
a7cb1f99 GS |
7254 | sv_setpvn(sv, "", 0); |
7255 | ||
e526c9e6 | 7256 | for (;;) { |
3cb0bbe5 GS |
7257 | if (*s == '0' && isDIGIT(s[1])) |
7258 | yyerror("Octal number in vector unsupported"); | |
dd629d5b GS |
7259 | rev = 0; |
7260 | { | |
7261 | /* this is atoi() that tolerates underscores */ | |
7262 | char *end = pos; | |
7263 | UV mult = 1; | |
7264 | while (--end >= s) { | |
7265 | UV orev; | |
7266 | if (*end == '_') | |
7267 | continue; | |
7268 | orev = rev; | |
7269 | rev += (*end - '0') * mult; | |
7270 | mult *= 10; | |
7271 | if (orev > rev && ckWARN_d(WARN_OVERFLOW)) | |
7272 | Perl_warner(aTHX_ WARN_OVERFLOW, | |
7273 | "Integer overflow in decimal number"); | |
7274 | } | |
7275 | } | |
3bd709b1 PP |
7276 | /* THIS IS EVIL */ |
7277 | if (rev < 256) | |
7278 | rev = ASCII_TO_NATIVE(rev); | |
7279 | ||
e526c9e6 | 7280 | tmpend = uv_to_utf8(tmpbuf, rev); |
9aa983d2 JH |
7281 | if (rev > revmax) |
7282 | revmax = rev; | |
e526c9e6 GS |
7283 | sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf); |
7284 | if (*pos == '.' && isDIGIT(pos[1])) | |
7285 | s = ++pos; | |
3818b22b | 7286 | else { |
e526c9e6 GS |
7287 | s = pos; |
7288 | break; | |
3818b22b | 7289 | } |
dd629d5b | 7290 | while (isDIGIT(*pos) || *pos == '_') |
e526c9e6 GS |
7291 | pos++; |
7292 | } | |
a7cb1f99 GS |
7293 | |
7294 | SvPOK_on(sv); | |
a7cb1f99 | 7295 | SvREADONLY_on(sv); |
3bd709b1 PP |
7296 | /* if (revmax > 127) { */ |
7297 | SvUTF8_on(sv); /* | |
9aa983d2 | 7298 | if (revmax < 256) |
7948272d | 7299 | sv_utf8_downgrade(sv, TRUE); |
3bd709b1 | 7300 | } */ |
a7cb1f99 GS |
7301 | } |
7302 | } | |
7303 | break; | |
79072805 | 7304 | } |
a687059c | 7305 | |
02aa26ce NT |
7306 | /* make the op for the constant and return */ |
7307 | ||
a7cb1f99 | 7308 | if (sv) |
b73d6f50 | 7309 | lvalp->opval = newSVOP(OP_CONST, 0, sv); |
a7cb1f99 | 7310 | else |
b73d6f50 | 7311 | lvalp->opval = Nullop; |
a687059c | 7312 | |
378cc40b LW |
7313 | return s; |
7314 | } | |
7315 | ||
76e3520e | 7316 | STATIC char * |
cea2e8a9 | 7317 | S_scan_formline(pTHX_ register char *s) |
378cc40b | 7318 | { |
79072805 | 7319 | register char *eol; |
378cc40b | 7320 | register char *t; |
79cb57f6 | 7321 | SV *stuff = newSVpvn("",0); |
79072805 | 7322 | bool needargs = FALSE; |
378cc40b | 7323 | |
79072805 | 7324 | while (!needargs) { |
c2e66d9e | 7325 | if (*s == '.' || *s == /*{*/'}') { |
79072805 | 7326 | /*SUPPRESS 530*/ |
51882d45 | 7327 | #ifdef PERL_STRICT_CR |
bf4acbe4 | 7328 | for (t = s+1;SPACE_OR_TAB(*t); t++) ; |
51882d45 | 7329 | #else |
bf4acbe4 | 7330 | for (t = s+1;SPACE_OR_TAB(*t) || *t == '\r'; t++) ; |
51882d45 | 7331 | #endif |
6a65c6a0 | 7332 | if (*t == '\n' || t == PL_bufend) |
79072805 LW |
7333 | break; |
7334 | } | |
3280af22 | 7335 | if (PL_in_eval && !PL_rsfp) { |
93a17b20 | 7336 | eol = strchr(s,'\n'); |
0f85fab0 | 7337 | if (!eol++) |
3280af22 | 7338 | eol = PL_bufend; |
0f85fab0 LW |
7339 | } |
7340 | else | |
3280af22 | 7341 | eol = PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
79072805 | 7342 | if (*s != '#') { |
a0d0e21e LW |
7343 | for (t = s; t < eol; t++) { |
7344 | if (*t == '~' && t[1] == '~' && SvCUR(stuff)) { | |
7345 | needargs = FALSE; | |
7346 | goto enough; /* ~~ must be first line in formline */ | |
378cc40b | 7347 | } |
a0d0e21e LW |
7348 | if (*t == '@' || *t == '^') |
7349 | needargs = TRUE; | |
378cc40b | 7350 | } |
a0d0e21e | 7351 | sv_catpvn(stuff, s, eol-s); |
2dc4c65b GS |
7352 | #ifndef PERL_STRICT_CR |
7353 | if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') { | |
7354 | char *end = SvPVX(stuff) + SvCUR(stuff); | |
7355 | end[-2] = '\n'; | |
7356 | end[-1] = '\0'; | |
7357 | SvCUR(stuff)--; | |
7358 | } | |
7359 | #endif | |
79072805 LW |
7360 | } |
7361 | s = eol; | |
3280af22 NIS |
7362 | if (PL_rsfp) { |
7363 | s = filter_gets(PL_linestr, PL_rsfp, 0); | |
7364 | PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr); | |
7365 | PL_bufend = PL_bufptr + SvCUR(PL_linestr); | |
207e3d1a | 7366 | PL_last_lop = PL_last_uni = Nullch; |
79072805 | 7367 | if (!s) { |
3280af22 | 7368 | s = PL_bufptr; |
79072805 | 7369 | yyerror("Format not terminated"); |
378cc40b LW |
7370 | break; |
7371 | } | |
378cc40b | 7372 | } |
463ee0b2 | 7373 | incline(s); |
79072805 | 7374 | } |
a0d0e21e LW |
7375 | enough: |
7376 | if (SvCUR(stuff)) { | |
3280af22 | 7377 | PL_expect = XTERM; |
79072805 | 7378 | if (needargs) { |
3280af22 NIS |
7379 | PL_lex_state = LEX_NORMAL; |
7380 | PL_nextval[PL_nexttoke].ival = 0; | |
79072805 LW |
7381 | force_next(','); |
7382 | } | |
a0d0e21e | 7383 | else |
3280af22 NIS |
7384 | PL_lex_state = LEX_FORMLINE; |
7385 | PL_nextval[PL_nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff); | |
79072805 | 7386 | force_next(THING); |
3280af22 | 7387 | PL_nextval[PL_nexttoke].ival = OP_FORMLINE; |
79072805 | 7388 | force_next(LSTOP); |
378cc40b | 7389 | } |
79072805 | 7390 | else { |
8990e307 | 7391 | SvREFCNT_dec(stuff); |
3280af22 NIS |
7392 | PL_lex_formbrack = 0; |
7393 | PL_bufptr = s; | |
79072805 LW |
7394 | } |
7395 | return s; | |
378cc40b | 7396 | } |
a687059c | 7397 | |
76e3520e | 7398 | STATIC void |
cea2e8a9 | 7399 | S_set_csh(pTHX) |
a687059c | 7400 | { |
ae986130 | 7401 | #ifdef CSH |
3280af22 NIS |
7402 | if (!PL_cshlen) |
7403 | PL_cshlen = strlen(PL_cshname); | |
ae986130 | 7404 | #endif |
a687059c | 7405 | } |
463ee0b2 | 7406 | |
ba6d6ac9 | 7407 | I32 |
864dbfa3 | 7408 | Perl_start_subparse(pTHX_ I32 is_format, U32 flags) |
8990e307 | 7409 | { |
3280af22 NIS |
7410 | I32 oldsavestack_ix = PL_savestack_ix; |
7411 | CV* outsidecv = PL_compcv; | |
748a9306 | 7412 | AV* comppadlist; |
8990e307 | 7413 | |
3280af22 NIS |
7414 | if (PL_compcv) { |
7415 | assert(SvTYPE(PL_compcv) == SVt_PVCV); | |
e9a444f0 | 7416 | } |
7766f137 | 7417 | SAVEI32(PL_subline); |
3280af22 NIS |
7418 | save_item(PL_subname); |
7419 | SAVEI32(PL_padix); | |
354992b1 | 7420 | SAVECOMPPAD(); |
3280af22 NIS |
7421 | SAVESPTR(PL_comppad_name); |
7422 | SAVESPTR(PL_compcv); | |
7423 | SAVEI32(PL_comppad_name_fill); | |
7424 | SAVEI32(PL_min_intro_pending); | |
7425 | SAVEI32(PL_max_intro_pending); | |
7426 | SAVEI32(PL_pad_reset_pending); | |
7427 | ||
7428 | PL_compcv = (CV*)NEWSV(1104,0); | |
7429 | sv_upgrade((SV *)PL_compcv, is_format ? SVt_PVFM : SVt_PVCV); | |
7430 | CvFLAGS(PL_compcv) |= flags; | |
7431 | ||
7432 | PL_comppad = newAV(); | |
7433 | av_push(PL_comppad, Nullsv); | |
7434 | PL_curpad = AvARRAY(PL_comppad); | |
7435 | PL_comppad_name = newAV(); | |
7436 | PL_comppad_name_fill = 0; | |
7437 | PL_min_intro_pending = 0; | |
7438 | PL_padix = 0; | |
57843af0 | 7439 | PL_subline = CopLINE(PL_curcop); |
6d4ff0d2 | 7440 | #ifdef USE_THREADS |
79cb57f6 | 7441 | av_store(PL_comppad_name, 0, newSVpvn("@_", 2)); |
533c011a NIS |
7442 | PL_curpad[0] = (SV*)newAV(); |
7443 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ | |
6d4ff0d2 | 7444 | #endif /* USE_THREADS */ |
748a9306 LW |
7445 | |
7446 | comppadlist = newAV(); | |
7447 | AvREAL_off(comppadlist); | |
3280af22 NIS |
7448 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
7449 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
748a9306 | 7450 | |
3280af22 NIS |
7451 | CvPADLIST(PL_compcv) = comppadlist; |
7452 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(outsidecv); | |
11343788 | 7453 | #ifdef USE_THREADS |
533c011a NIS |
7454 | CvOWNER(PL_compcv) = 0; |
7455 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
7456 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
11343788 | 7457 | #endif /* USE_THREADS */ |
748a9306 | 7458 | |
8990e307 LW |
7459 | return oldsavestack_ix; |
7460 | } | |
7461 | ||
084592ab CN |
7462 | #ifdef __SC__ |
7463 | #pragma segment Perl_yylex | |
7464 | #endif | |
8990e307 | 7465 | int |
864dbfa3 | 7466 | Perl_yywarn(pTHX_ char *s) |
8990e307 | 7467 | { |
faef0170 | 7468 | PL_in_eval |= EVAL_WARNONLY; |
748a9306 | 7469 | yyerror(s); |
faef0170 | 7470 | PL_in_eval &= ~EVAL_WARNONLY; |
748a9306 | 7471 | return 0; |
8990e307 LW |
7472 | } |
7473 | ||
7474 | int | |
864dbfa3 | 7475 | Perl_yyerror(pTHX_ char *s) |
463ee0b2 | 7476 | { |
68dc0745 | 7477 | char *where = NULL; |
7478 | char *context = NULL; | |
7479 | int contlen = -1; | |
46fc3d4c | 7480 | SV *msg; |
463ee0b2 | 7481 | |
3280af22 | 7482 | if (!yychar || (yychar == ';' && !PL_rsfp)) |
54310121 | 7483 | where = "at EOF"; |
3280af22 NIS |
7484 | else if (PL_bufptr > PL_oldoldbufptr && PL_bufptr - PL_oldoldbufptr < 200 && |
7485 | PL_oldoldbufptr != PL_oldbufptr && PL_oldbufptr != PL_bufptr) { | |
7486 | while (isSPACE(*PL_oldoldbufptr)) | |
7487 | PL_oldoldbufptr++; | |
7488 | context = PL_oldoldbufptr; | |
7489 | contlen = PL_bufptr - PL_oldoldbufptr; | |
463ee0b2 | 7490 | } |
3280af22 NIS |
7491 | else if (PL_bufptr > PL_oldbufptr && PL_bufptr - PL_oldbufptr < 200 && |
7492 | PL_oldbufptr != PL_bufptr) { | |
7493 | while (isSPACE(*PL_oldbufptr)) | |
7494 | PL_oldbufptr++; | |
7495 | context = PL_oldbufptr; | |
7496 | contlen = PL_bufptr - PL_oldbufptr; | |
463ee0b2 LW |
7497 | } |
7498 | else if (yychar > 255) | |
68dc0745 | 7499 | where = "next token ???"; |
cdfb297e GS |
7500 | #ifdef USE_PURE_BISON |
7501 | /* GNU Bison sets the value -2 */ | |
7502 | else if (yychar == -2) { | |
7503 | #else | |
463ee0b2 | 7504 | else if ((yychar & 127) == 127) { |
cdfb297e | 7505 | #endif |
3280af22 NIS |
7506 | if (PL_lex_state == LEX_NORMAL || |
7507 | (PL_lex_state == LEX_KNOWNEXT && PL_lex_defer == LEX_NORMAL)) | |
68dc0745 | 7508 | where = "at end of line"; |
3280af22 | 7509 | else if (PL_lex_inpat) |
68dc0745 | 7510 | where = "within pattern"; |
463ee0b2 | 7511 | else |
68dc0745 | 7512 | where = "within string"; |
463ee0b2 | 7513 | } |
46fc3d4c | 7514 | else { |
79cb57f6 | 7515 | SV *where_sv = sv_2mortal(newSVpvn("next char ", 10)); |
46fc3d4c | 7516 | if (yychar < 32) |
cea2e8a9 | 7517 | Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar)); |
46fc3d4c | 7518 | else if (isPRINT_LC(yychar)) |
cea2e8a9 | 7519 | Perl_sv_catpvf(aTHX_ where_sv, "%c", yychar); |
463ee0b2 | 7520 | else |
cea2e8a9 | 7521 | Perl_sv_catpvf(aTHX_ where_sv, "\\%03o", yychar & 255); |
46fc3d4c | 7522 | where = SvPVX(where_sv); |
463ee0b2 | 7523 | } |
46fc3d4c | 7524 | msg = sv_2mortal(newSVpv(s, 0)); |
ed094faf GS |
7525 | Perl_sv_catpvf(aTHX_ msg, " at %s line %"IVdf", ", |
7526 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
68dc0745 | 7527 | if (context) |
cea2e8a9 | 7528 | Perl_sv_catpvf(aTHX_ msg, "near \"%.*s\"\n", contlen, context); |
463ee0b2 | 7529 | else |
cea2e8a9 | 7530 | Perl_sv_catpvf(aTHX_ msg, "%s\n", where); |
57843af0 | 7531 | if (PL_multi_start < PL_multi_end && (U32)(CopLINE(PL_curcop) - PL_multi_end) <= 1) { |
cf2093f6 | 7532 | Perl_sv_catpvf(aTHX_ msg, |
57def98f | 7533 | " (Might be a runaway multi-line %c%c string starting on line %"IVdf")\n", |
cf2093f6 | 7534 | (int)PL_multi_open,(int)PL_multi_close,(IV)PL_multi_start); |
3280af22 | 7535 | PL_multi_end = 0; |
a0d0e21e | 7536 | } |
faef0170 | 7537 | if (PL_in_eval & EVAL_WARNONLY) |
894356b3 | 7538 | Perl_warn(aTHX_ "%"SVf, msg); |
463ee0b2 | 7539 | else |
5a844595 | 7540 | qerror(msg); |
c7d6bfb2 GS |
7541 | if (PL_error_count >= 10) { |
7542 | if (PL_in_eval && SvCUR(ERRSV)) | |
d2560b70 | 7543 | Perl_croak(aTHX_ "%"SVf"%s has too many errors.\n", |
c7d6bfb2 GS |
7544 | ERRSV, CopFILE(PL_curcop)); |
7545 | else | |
7546 | Perl_croak(aTHX_ "%s has too many errors.\n", | |
7547 | CopFILE(PL_curcop)); | |
7548 | } | |
3280af22 NIS |
7549 | PL_in_my = 0; |
7550 | PL_in_my_stash = Nullhv; | |
463ee0b2 LW |
7551 | return 0; |
7552 | } | |
084592ab CN |
7553 | #ifdef __SC__ |
7554 | #pragma segment Main | |
7555 | #endif | |
4e35701f | 7556 | |
b250498f | 7557 | STATIC char* |
3ae08724 | 7558 | S_swallow_bom(pTHX_ U8 *s) |
01ec43d0 | 7559 | { |
b250498f GS |
7560 | STRLEN slen; |
7561 | slen = SvCUR(PL_linestr); | |
7562 | switch (*s) { | |
4e553d73 NIS |
7563 | case 0xFF: |
7564 | if (s[1] == 0xFE) { | |
01ec43d0 | 7565 | /* UTF-16 little-endian */ |
3ae08724 | 7566 | if (s[2] == 0 && s[3] == 0) /* UTF-32 little-endian */ |
01ec43d0 GS |
7567 | Perl_croak(aTHX_ "Unsupported script encoding"); |
7568 | #ifndef PERL_NO_UTF16_FILTER | |
dea0fc0b | 7569 | DEBUG_p(PerlIO_printf(Perl_debug_log, "UTF-LE script encoding\n")); |
3ae08724 | 7570 | s += 2; |
dea0fc0b JH |
7571 | if (PL_bufend > (char*)s) { |
7572 | U8 *news; | |
7573 | I32 newlen; | |
7574 | ||
7575 | filter_add(utf16rev_textfilter, NULL); | |
7576 | New(898, news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); | |
f72f5f89 JH |
7577 | PL_bufend = (char*)utf16_to_utf8_reversed(s, news, |
7578 | PL_bufend - (char*)s - 1, | |
dea0fc0b JH |
7579 | &newlen); |
7580 | Copy(news, s, newlen, U8); | |
7581 | SvCUR_set(PL_linestr, newlen); | |
7582 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
7583 | news[newlen++] = '\0'; | |
7584 | Safefree(news); | |
7585 | } | |
b250498f | 7586 | #else |
01ec43d0 | 7587 | Perl_croak(aTHX_ "Unsupported script encoding"); |
b250498f | 7588 | #endif |
01ec43d0 GS |
7589 | } |
7590 | break; | |
78ae23f5 | 7591 | case 0xFE: |
3ae08724 | 7592 | if (s[1] == 0xFF) { /* UTF-16 big-endian */ |
01ec43d0 | 7593 | #ifndef PERL_NO_UTF16_FILTER |
dea0fc0b JH |
7594 | DEBUG_p(PerlIO_printf(Perl_debug_log, "UTF-16BE script encoding\n")); |
7595 | s += 2; | |
7596 | if (PL_bufend > (char *)s) { | |
7597 | U8 *news; | |
7598 | I32 newlen; | |
7599 | ||
7600 | filter_add(utf16_textfilter, NULL); | |
7601 | New(898, news, (PL_bufend - (char*)s) * 3 / 2 + 1, U8); | |
7602 | PL_bufend = (char*)utf16_to_utf8(s, news, | |
7603 | PL_bufend - (char*)s, | |
7604 | &newlen); | |
7605 | Copy(news, s, newlen, U8); | |
7606 | SvCUR_set(PL_linestr, newlen); | |
7607 | PL_bufend = SvPVX(PL_linestr) + newlen; | |
7608 | news[newlen++] = '\0'; | |
7609 | Safefree(news); | |
7610 | } | |
b250498f | 7611 | #else |
01ec43d0 | 7612 | Perl_croak(aTHX_ "Unsupported script encoding"); |
b250498f | 7613 | #endif |
01ec43d0 GS |
7614 | } |
7615 | break; | |
3ae08724 GS |
7616 | case 0xEF: |
7617 | if (slen > 2 && s[1] == 0xBB && s[2] == 0xBF) { | |
dea0fc0b | 7618 | DEBUG_p(PerlIO_printf(Perl_debug_log, "UTF-8 script encoding\n")); |
01ec43d0 GS |
7619 | s += 3; /* UTF-8 */ |
7620 | } | |
7621 | break; | |
7622 | case 0: | |
7623 | if (slen > 3 && s[1] == 0 && /* UTF-32 big-endian */ | |
3ae08724 | 7624 | s[2] == 0xFE && s[3] == 0xFF) |
01ec43d0 GS |
7625 | { |
7626 | Perl_croak(aTHX_ "Unsupported script encoding"); | |
7627 | } | |
7628 | } | |
b8f84bb2 | 7629 | return (char*)s; |
b250498f | 7630 | } |
4755096e GS |
7631 | |
7632 | #ifdef PERL_OBJECT | |
7633 | #include "XSUB.h" | |
7634 | #endif | |
7635 | ||
7636 | /* | |
7637 | * restore_rsfp | |
7638 | * Restore a source filter. | |
7639 | */ | |
7640 | ||
7641 | static void | |
7642 | restore_rsfp(pTHXo_ void *f) | |
7643 | { | |
7644 | PerlIO *fp = (PerlIO*)f; | |
7645 | ||
7646 | if (PL_rsfp == PerlIO_stdin()) | |
7647 | PerlIO_clearerr(PL_rsfp); | |
7648 | else if (PL_rsfp && (PL_rsfp != fp)) | |
7649 | PerlIO_close(PL_rsfp); | |
7650 | PL_rsfp = fp; | |
7651 | } | |
6e3aabd6 GS |
7652 | |
7653 | #ifndef PERL_NO_UTF16_FILTER | |
7654 | static I32 | |
7655 | utf16_textfilter(pTHXo_ int idx, SV *sv, int maxlen) | |
7656 | { | |
7657 | I32 count = FILTER_READ(idx+1, sv, maxlen); | |
7658 | if (count) { | |
7659 | U8* tmps; | |
7660 | U8* tend; | |
dea0fc0b | 7661 | I32 newlen; |
6e3aabd6 | 7662 | New(898, tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
f72f5f89 JH |
7663 | if (!*SvPV_nolen(sv)) |
7664 | /* Game over, but don't feed an odd-length string to utf16_to_utf8 */ | |
7665 | return count; | |
4e553d73 | 7666 | |
dea0fc0b | 7667 | tend = utf16_to_utf8((U8*)SvPVX(sv), tmps, SvCUR(sv), &newlen); |
6e3aabd6 GS |
7668 | sv_usepvn(sv, (char*)tmps, tend - tmps); |
7669 | } | |
7670 | return count; | |
7671 | } | |
7672 | ||
7673 | static I32 | |
7674 | utf16rev_textfilter(pTHXo_ int idx, SV *sv, int maxlen) | |
7675 | { | |
7676 | I32 count = FILTER_READ(idx+1, sv, maxlen); | |
7677 | if (count) { | |
7678 | U8* tmps; | |
7679 | U8* tend; | |
dea0fc0b | 7680 | I32 newlen; |
f72f5f89 JH |
7681 | if (!*SvPV_nolen(sv)) |
7682 | /* Game over, but don't feed an odd-length string to utf16_to_utf8 */ | |
7683 | return count; | |
7684 | ||
6e3aabd6 | 7685 | New(898, tmps, SvCUR(sv) * 3 / 2 + 1, U8); |
dea0fc0b | 7686 | tend = utf16_to_utf8_reversed((U8*)SvPVX(sv), tmps, SvCUR(sv), &newlen); |
6e3aabd6 GS |
7687 | sv_usepvn(sv, (char*)tmps, tend - tmps); |
7688 | } | |
7689 | return count; | |
7690 | } | |
7691 | #endif |