/* toke.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#define yychar (*PL_yycharp)
#define yylval (*PL_yylvalp)
-static const char ident_too_long[] =
- "Identifier too long";
-static const char c_without_g[] =
- "Use of /c modifier is meaningless without /g";
-static const char c_in_subst[] =
- "Use of /c modifier is meaningless in s///";
+static const char ident_too_long[] = "Identifier too long";
+static const char commaless_variable_list[] = "comma-less variable list";
static void restore_rsfp(pTHX_ void *f);
#ifndef PERL_NO_UTF16_FILTER
/* #define LEX_NOTPARSING 11 is done in perl.h. */
-#define LEX_NORMAL 10
-#define LEX_INTERPNORMAL 9
-#define LEX_INTERPCASEMOD 8
-#define LEX_INTERPPUSH 7
-#define LEX_INTERPSTART 6
-#define LEX_INTERPEND 5
-#define LEX_INTERPENDMAYBE 4
-#define LEX_INTERPCONCAT 3
-#define LEX_INTERPCONST 2
-#define LEX_FORMLINE 1
-#define LEX_KNOWNEXT 0
+#define LEX_NORMAL 10 /* normal code (ie not within "...") */
+#define LEX_INTERPNORMAL 9 /* code within a string, eg "$foo[$x+1]" */
+#define LEX_INTERPCASEMOD 8 /* expecting a \U, \Q or \E etc */
+#define LEX_INTERPPUSH 7 /* starting a new sublex parse level */
+#define LEX_INTERPSTART 6 /* expecting the start of a $var */
+
+ /* at end of code, eg "$x" followed by: */
+#define LEX_INTERPEND 5 /* ... eg not one of [, { or -> */
+#define LEX_INTERPENDMAYBE 4 /* ... eg one of [, { or -> */
+
+#define LEX_INTERPCONCAT 3 /* expecting anything, eg at start of
+ string or after \E, $foo, etc */
+#define LEX_INTERPCONST 2 /* NOT USED */
+#define LEX_FORMLINE 1 /* expecting a format line */
+#define LEX_KNOWNEXT 0 /* next token known; just return it */
+
#ifdef DEBUGGING
static const char* const lex_state_names[] = {
*/
#ifdef DEBUGGING /* Serve -DT. */
-# define REPORT(retval) tokereport(s,(int)retval)
+# define REPORT(retval) tokereport((I32)retval)
#else
# define REPORT(retval) (retval)
#endif
{ BITOROP, TOKENTYPE_OPNUM, "BITOROP" },
{ COLONATTR, TOKENTYPE_NONE, "COLONATTR" },
{ CONTINUE, TOKENTYPE_NONE, "CONTINUE" },
+ { DEFAULT, TOKENTYPE_NONE, "DEFAULT" },
{ DO, TOKENTYPE_NONE, "DO" },
{ DOLSHARP, TOKENTYPE_NONE, "DOLSHARP" },
{ DORDOR, TOKENTYPE_NONE, "DORDOR" },
{ FUNC0SUB, TOKENTYPE_OPVAL, "FUNC0SUB" },
{ FUNC1, TOKENTYPE_OPNUM, "FUNC1" },
{ FUNCMETH, TOKENTYPE_OPVAL, "FUNCMETH" },
+ { GIVEN, TOKENTYPE_IVAL, "GIVEN" },
{ HASHBRACK, TOKENTYPE_NONE, "HASHBRACK" },
{ IF, TOKENTYPE_IVAL, "IF" },
{ LABEL, TOKENTYPE_PVAL, "LABEL" },
{ UNLESS, TOKENTYPE_IVAL, "UNLESS" },
{ UNTIL, TOKENTYPE_IVAL, "UNTIL" },
{ USE, TOKENTYPE_IVAL, "USE" },
+ { WHEN, TOKENTYPE_IVAL, "WHEN" },
{ WHILE, TOKENTYPE_IVAL, "WHILE" },
{ WORD, TOKENTYPE_OPVAL, "WORD" },
{ 0, TOKENTYPE_NONE, 0 }
/* dump the returned token in rv, plus any optional arg in yylval */
STATIC int
-S_tokereport(pTHX_ const char* s, I32 rv)
+S_tokereport(pTHX_ I32 rv)
{
if (DEBUG_T_TEST) {
const char *name = Nullch;
enum token_type type = TOKENTYPE_NONE;
const struct debug_tokens *p;
- SV* const report = newSVpvn("<== ", 4);
+ SV* const report = newSVpvs("<== ");
for (p = debug_tokens; p->token; p++) {
if (p->token == (int)rv) {
else if ((char)rv > ' ' && (char)rv < '~')
Perl_sv_catpvf(aTHX_ report, "'%c'", (char)rv);
else if (!rv)
- Perl_sv_catpv(aTHX_ report, "EOF");
+ sv_catpvs(report, "EOF");
else
Perl_sv_catpvf(aTHX_ report, "?? %"IVdf, (IV)rv);
switch (type) {
Perl_sv_catpvf(aTHX_ report, "(pval=\"%s\")", yylval.pval);
break;
case TOKENTYPE_OPVAL:
- if (yylval.opval)
+ if (yylval.opval) {
Perl_sv_catpvf(aTHX_ report, "(opval=op_%s)",
PL_op_name[yylval.opval->op_type]);
+ if (yylval.opval->op_type == OP_CONST) {
+ Perl_sv_catpvf(aTHX_ report, " %s",
+ SvPEEK(cSVOPx_sv(yylval.opval)));
+ }
+
+ }
else
- Perl_sv_catpv(aTHX_ report, "(opval=null)");
+ sv_catpvs(report, "(opval=null)");
break;
}
- Perl_sv_catpvf(aTHX_ report, " at line %"IVdf" [", (IV)CopLINE(PL_curcop));
- if (s - PL_bufptr > 0)
- sv_catpvn(report, PL_bufptr, s - PL_bufptr);
- else {
- if (PL_oldbufptr && *PL_oldbufptr)
- sv_catpv(report, PL_tokenbuf);
- }
- PerlIO_printf(Perl_debug_log, "### %s]\n", SvPV_nolen_const(report));
+ PerlIO_printf(Perl_debug_log, "### %s\n\n", SvPV_nolen_const(report));
};
return (int)rv;
}
+
+/* print the buffer with suitable escapes */
+
+STATIC void
+S_printbuf(pTHX_ const char* fmt, const char* s)
+{
+ SV* const tmp = newSVpvs("");
+ PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60));
+ SvREFCNT_dec(tmp);
+}
+
#endif
/*
if (t < PL_bufptr && isSPACE(*t))
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
"\t(Do you need to predeclare %.*s?)\n",
- t - PL_oldoldbufptr, PL_oldoldbufptr);
+ (int)(t - PL_oldoldbufptr), PL_oldoldbufptr);
}
else {
assert(s >= oldbp);
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
+ "\t(Missing operator before %.*s?)\n", (int)(s - oldbp), oldbp);
}
}
PL_bufptr = oldbp;
#endif
) {
*tmpbuf = '^';
- tmpbuf[1] = toCTRL(PL_multi_close);
+ tmpbuf[1] = (char)toCTRL(PL_multi_close);
tmpbuf[2] = '\0';
s = tmpbuf;
}
Perl_croak(aTHX_ "Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
}
+#define FEATURE_IS_ENABLED(name) \
+ ((0 != (PL_hints & HINT_LOCALIZE_HH)) \
+ && S_feature_is_enabled(aTHX_ STR_WITH_LEN(name)))
+/*
+ * S_feature_is_enabled
+ * Check whether the named feature is enabled.
+ */
+STATIC bool
+S_feature_is_enabled(pTHX_ char *name, STRLEN namelen)
+{
+ HV * const hinthv = GvHV(PL_hintgv);
+ char he_name[32] = "feature_";
+ (void) strncpy(&he_name[8], name, 24);
+
+ return (hinthv && hv_exists(hinthv, he_name, 8 + namelen));
+}
+
/*
* Perl_deprecate
*/
}
/*
- * depcom
- * Deprecate a comma-less variable list.
- */
-
-STATIC void
-S_depcom(pTHX)
-{
- deprecate_old("comma-less variable list");
-}
-
-/*
* experimental text filters for win32 carriage-returns, utf16-to-utf8 and
* utf16-to-utf8-reversed.
*/
if (!len || s[len-1] != ';') {
if (!(SvFLAGS(PL_linestr) & SVs_TEMP))
PL_linestr = sv_2mortal(newSVsv(PL_linestr));
- sv_catpvn(PL_linestr, "\n;", 2);
+ sv_catpvs(PL_linestr, "\n;");
}
SvTEMP_off(PL_linestr);
PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr);
*t = '\0';
if (t - s > 0) {
#ifndef USE_ITHREADS
- const char *cf = CopFILE(PL_curcop);
- if (cf && strlen(cf) > 7 && strnEQ(cf, "(eval ", 6)) {
+ const char * const cf = CopFILE(PL_curcop);
+ STRLEN tmplen = cf ? strlen(cf) : 0;
+ if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) {
/* must copy *{"::_<(eval N)[oldfilename:L]"}
* to *{"::_<newfilename"} */
char smallbuf[256], smallbuf2[256];
char *tmpbuf, *tmpbuf2;
GV **gvp, *gv2;
- STRLEN tmplen = strlen(cf);
STRLEN tmplen2 = strlen(s);
if (tmplen + 3 < sizeof smallbuf)
tmpbuf = smallbuf;
sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
- av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv);
+ av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv);
}
}
}
/* XXX see note in pp_entereval() for why we forgo typo
warnings if the symbol must be introduced in an eval.
GSAR 96-10-12 */
- gv_fetchpv(s, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE,
+ gv_fetchpv(s, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : GV_ADD,
kind == '$' ? SVt_PV :
kind == '@' ? SVt_PVAV :
kind == '%' ? SVt_PVHV :
STATIC I32
S_sublex_start(pTHX)
{
- const register I32 op_type = yylval.ival;
+ register const I32 op_type = yylval.ival;
if (op_type == OP_NULL) {
yylval.opval = PL_lex_op;
{
dVAR;
if (!PL_lex_starts++) {
- SV * const sv = newSVpvn("",0);
+ SV * const sv = newSVpvs("");
if (SvUTF8(PL_linestr))
SvUTF8_on(sv);
PL_expect = XOPERATOR;
weight -= seen[un_char] * 10;
if (isALNUM_lazy_if(s+1,UTF)) {
scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE);
- if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
+ if ((int)strlen(tmpbuf) > 1
+ && gv_fetchpv(tmpbuf, 0, SVt_PV))
weight -= 100;
else
weight -= 10;
*/
STATIC int
-S_intuit_method(pTHX_ char *start, GV *gv)
+S_intuit_method(pTHX_ char *start, GV *gv, CV *cv)
{
char *s = start + (*start == '$');
char tmpbuf[sizeof PL_tokenbuf];
GV* indirgv;
if (gv) {
- CV *cv;
- if (GvIO(gv))
+ if (SvTYPE(gv) == SVt_PVGV && GvIO(gv))
return 0;
- if ((cv = GvCVu(gv))) {
- const char *proto = SvPVX_const(cv);
- if (proto) {
- if (*proto == ';')
- proto++;
- if (*proto == '*')
- return 0;
+ if (cv) {
+ if (SvPOK(cv)) {
+ const char *proto = SvPVX_const(cv);
+ if (proto) {
+ if (*proto == ';')
+ proto++;
+ if (*proto == '*')
+ return 0;
+ }
}
} else
gv = 0;
tmpbuf[len] = '\0';
goto bare_package;
}
- indirgv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV);
+ indirgv = gv_fetchpv(tmpbuf, 0, SVt_PVCV);
if (indirgv && GvCVu(indirgv))
return 0;
/* filehandle or package name makes it a method */
if (len > 2 &&
(pkgname[len - 2] == ':' && pkgname[len - 1] == ':') &&
- (gv = gv_fetchpv(pkgname, FALSE, SVt_PVHV)))
+ (gv = gv_fetchpv(pkgname, 0, SVt_PVHV)))
{
return GvHV(gv); /* Foo:: */
}
/* use constant CLASS => 'MyClass' */
- if ((gv = gv_fetchpv(pkgname, FALSE, SVt_PVCV))) {
+ if ((gv = gv_fetchpv(pkgname, 0, SVt_PVCV))) {
SV *sv;
if (GvCV(gv) && (sv = cv_const_sv(GvCV(gv)))) {
pkgname = SvPV_nolen_const(sv);
{
register char *s = PL_bufptr;
register char *d;
- register I32 tmp;
STRLEN len;
- GV *gv = Nullgv;
- GV **gvp = 0;
bool bof = FALSE;
- I32 orig_keyword = 0;
DEBUG_T( {
- PerlIO_printf(Perl_debug_log, "### LEX_%s\n",
- lex_state_names[PL_lex_state]);
+ SV* tmp = newSVpvs("");
+ PerlIO_printf(Perl_debug_log, "### %"IVdf":LEX_%s/X%s %s\n",
+ (IV)CopLINE(PL_curcop),
+ lex_state_names[PL_lex_state],
+ exp_name[PL_expect],
+ pv_display(tmp, s, strlen(s), 0, 60));
+ SvREFCNT_dec(tmp);
} );
/* check if there's an identifier for us to look at */
if (PL_pending_ident)
PL_expect = PL_lex_expect;
PL_lex_defer = LEX_NORMAL;
}
- DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Next token after '%s' was known, type %"IVdf"\n", PL_bufptr,
- (IV)PL_nexttype[PL_nexttoke]); });
-
return REPORT(PL_nexttype[PL_nexttoke]);
/* interpolated case modifiers like \L \U, including \Q and \E.
}
else {
DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Saw case modifier at '%s'\n", PL_bufptr); });
+ "### Saw case modifier\n"); });
s = PL_bufptr + 1;
if (s[1] == '\\' && s[2] == 'E') {
PL_bufptr = s + 3;
return yylex();
}
else {
+ I32 tmp;
if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
tmp = *s, *s = s[2], s[2] = (char)tmp; /* misordered... */
if ((*s == 'L' || *s == 'U') &&
if (PL_bufptr == PL_bufend)
return REPORT(sublex_done());
DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Interpolated variable at '%s'\n", PL_bufptr); });
+ "### Interpolated variable\n"); });
PL_expect = XTERM;
PL_lex_dojoin = (*PL_bufptr == '@');
PL_lex_state = LEX_INTERPNORMAL;
s = PL_bufptr;
PL_oldoldbufptr = PL_oldbufptr;
PL_oldbufptr = s;
- DEBUG_T( {
- PerlIO_printf(Perl_debug_log, "### Tokener expecting %s at [%s]\n",
- exp_name[PL_expect], s);
- } );
retry:
switch (*s) {
PL_last_uni = 0;
PL_last_lop = 0;
if (PL_lex_brackets) {
- if (PL_lex_formbrack)
- yyerror("Format not terminated");
- else
- yyerror("Missing right curly or square bracket");
+ yyerror(PL_lex_formbrack
+ ? "Format not terminated"
+ : "Missing right curly or square bracket");
}
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Tokener got EOF\n");
PL_preambled = TRUE;
sv_setpv(PL_linestr,incl_perldb());
if (SvCUR(PL_linestr))
- sv_catpvn(PL_linestr,";", 1);
+ sv_catpvs(PL_linestr,";");
if (PL_preambleav){
while(AvFILLp(PL_preambleav) >= 0) {
SV *tmpsv = av_shift(PL_preambleav);
sv_catsv(PL_linestr, tmpsv);
- sv_catpvn(PL_linestr, ";", 1);
+ sv_catpvs(PL_linestr, ";");
sv_free(tmpsv);
}
sv_free((SV*)PL_preambleav);
PL_preambleav = NULL;
}
if (PL_minus_n || PL_minus_p) {
- sv_catpv(PL_linestr, "LINE: while (<>) {");
+ sv_catpvs(PL_linestr, "LINE: while (<>) {");
if (PL_minus_l)
- sv_catpv(PL_linestr,"chomp;");
+ sv_catpvs(PL_linestr,"chomp;");
if (PL_minus_a) {
if (PL_minus_F) {
if ((*PL_splitstr == '/' || *PL_splitstr == '\''
else {
/* "q\0${splitstr}\0" is legal perl. Yes, even NUL
bytes can be used as quoting characters. :-) */
- /* The count here deliberately includes the NUL
- that terminates the C string constant. This
- embeds the opening NUL into the string. */
const char *splits = PL_splitstr;
- sv_catpvn(PL_linestr, "our @F=split(q", 15);
+ sv_catpvs(PL_linestr, "our @F=split(q\0");
do {
/* Need to \ \s */
if (*splits == '\\')
/* This loop will embed the trailing NUL of
PL_linestr as the last thing it does before
terminating. */
- sv_catpvn(PL_linestr, ");", 2);
+ sv_catpvs(PL_linestr, ");");
}
}
else
- sv_catpv(PL_linestr,"our @F=split(' ');");
+ sv_catpvs(PL_linestr,"our @F=split(' ');");
}
}
- sv_catpvn(PL_linestr, "\n", 1);
+ if (PL_minus_E)
+ sv_catpvs(PL_linestr,"use feature ':5.10';");
+ sv_catpvs(PL_linestr, "\n");
PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr);
PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr);
PL_last_lop = PL_last_uni = Nullch;
sv_setsv(sv,PL_linestr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
- av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv);
+ av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv);
}
goto retry;
}
sv_setsv(sv,PL_linestr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
- av_store(CopFILEAV(PL_curcop),(I32)CopLINE(PL_curcop),sv);
+ av_store(CopFILEAVx(PL_curcop),(I32)CopLINE(PL_curcop),sv);
}
PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr);
PL_last_lop = PL_last_uni = Nullch;
* at least, set argv[0] to the basename of the Perl
* interpreter. So, having found "#!", we'll set it right.
*/
- SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV)); /* $^X */
+ SV * const x
+ = GvSV(gv_fetchpv("\030", GV_ADD, SVt_PV)); /* $^X */
assert(SvPOK(x) || SvGMAGICAL(x));
if (sv_eq(x, CopFILESV(PL_curcop))) {
sv_setpvn(x, ipath, ipathend - ipath);
(void)gv_fetchfile(PL_origfilename);
goto retry;
}
- if (PL_doswitches && !switches_done) {
- int argc = PL_origargc;
- char **argv = PL_origargv;
- do {
- argc--,argv++;
- } while (argc && argv[0][0] == '-' && argv[0][1]);
- init_argv_symbols(argc,argv);
- }
}
}
}
case '-':
if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
I32 ftst = 0;
+ char tmp;
s++;
PL_bufptr = s;
if (strnEQ(s,"=>",2)) {
s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE);
- DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw unary minus before =>, forcing word '%s'\n", s);
+ DEBUG_T( { S_printbuf(aTHX_
+ "### Saw unary minus before =>, forcing word %s\n", s);
} );
OPERATOR('-'); /* unary minus */
}
case 'T': ftst = OP_FTTEXT; break;
case 'B': ftst = OP_FTBINARY; break;
case 'M': case 'A': case 'C':
- gv_fetchpv("\024",TRUE, SVt_PV);
+ gv_fetchpv("\024",GV_ADD, SVt_PV);
switch (tmp) {
case 'M': ftst = OP_FTMTIME; break;
case 'A': ftst = OP_FTATIME; break;
if (ftst) {
PL_last_lop_op = (OPCODE)ftst;
DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw file test %c\n", (int)ftst);
+ "### Saw file test %c\n", (int)tmp);
} );
FTST(ftst);
}
s = --PL_bufptr;
}
}
- tmp = *s++;
- if (*s == tmp) {
- s++;
+ {
+ const char tmp = *s++;
+ if (*s == tmp) {
+ s++;
+ if (PL_expect == XOPERATOR)
+ TERM(POSTDEC);
+ else
+ OPERATOR(PREDEC);
+ }
+ else if (*s == '>') {
+ s++;
+ s = skipspace(s);
+ if (isIDFIRST_lazy_if(s,UTF)) {
+ s = force_word(s,METHOD,FALSE,TRUE,FALSE);
+ TOKEN(ARROW);
+ }
+ else if (*s == '$')
+ OPERATOR(ARROW);
+ else
+ TERM(ARROW);
+ }
if (PL_expect == XOPERATOR)
- TERM(POSTDEC);
- else
- OPERATOR(PREDEC);
- }
- else if (*s == '>') {
- s++;
- s = skipspace(s);
- if (isIDFIRST_lazy_if(s,UTF)) {
- s = force_word(s,METHOD,FALSE,TRUE,FALSE);
- TOKEN(ARROW);
+ Aop(OP_SUBTRACT);
+ else {
+ if (isSPACE(*s) || !isSPACE(*PL_bufptr))
+ check_uni();
+ OPERATOR('-'); /* unary minus */
}
- else if (*s == '$')
- OPERATOR(ARROW);
- else
- TERM(ARROW);
- }
- if (PL_expect == XOPERATOR)
- Aop(OP_SUBTRACT);
- else {
- if (isSPACE(*s) || !isSPACE(*PL_bufptr))
- check_uni();
- OPERATOR('-'); /* unary minus */
}
case '+':
- tmp = *s++;
- if (*s == tmp) {
- s++;
+ {
+ const char tmp = *s++;
+ if (*s == tmp) {
+ s++;
+ if (PL_expect == XOPERATOR)
+ TERM(POSTINC);
+ else
+ OPERATOR(PREINC);
+ }
if (PL_expect == XOPERATOR)
- TERM(POSTINC);
- else
- OPERATOR(PREINC);
- }
- if (PL_expect == XOPERATOR)
- Aop(OP_ADD);
- else {
- if (isSPACE(*s) || !isSPACE(*PL_bufptr))
- check_uni();
- OPERATOR('+');
+ Aop(OP_ADD);
+ else {
+ if (isSPACE(*s) || !isSPACE(*PL_bufptr))
+ check_uni();
+ OPERATOR('+');
+ }
}
case '*':
PL_lex_brackets++;
/* FALL THROUGH */
case '~':
+ if (s[1] == '~'
+ && (PL_expect == XOPERATOR || PL_expect == XTERMORDORDOR)
+ && FEATURE_IS_ENABLED("~~"))
+ {
+ s += 2;
+ Eop(OP_SMARTMATCH);
+ }
case ',':
- tmp = *s++;
- OPERATOR(tmp);
+ {
+ const char tmp = *s++;
+ OPERATOR(tmp);
+ }
case ':':
if (s[1] == ':') {
len = 0;
- goto just_a_word;
+ goto just_a_word_zero_gv;
}
s++;
switch (PL_expect) {
s = skipspace(s);
attrs = Nullop;
while (isIDFIRST_lazy_if(s,UTF)) {
+ I32 tmp;
d = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len);
if (isLOWER(*s) && (tmp = keyword(PL_tokenbuf, len))) {
if (tmp < 0) tmp = -tmp;
else if (s == d)
break; /* require real whitespace or :'s */
}
- tmp = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */
- if (*s != ';' && *s != '}' && *s != tmp && (tmp != '=' || *s != ')')) {
- const char q = ((*s == '\'') ? '"' : '\'');
- /* If here for an expression, and parsed no attrs, back off. */
- if (tmp == '=' && !attrs) {
- s = PL_bufptr;
- break;
+ {
+ const char tmp
+ = (PL_expect == XOPERATOR ? '=' : '{'); /*'}(' for vi */
+ if (*s != ';' && *s != '}' && *s != tmp
+ && (tmp != '=' || *s != ')')) {
+ const char q = ((*s == '\'') ? '"' : '\'');
+ /* If here for an expression, and parsed no attrs, back
+ off. */
+ if (tmp == '=' && !attrs) {
+ s = PL_bufptr;
+ break;
+ }
+ /* MUST advance bufptr here to avoid bogus "at end of line"
+ context messages from yyerror().
+ */
+ PL_bufptr = s;
+ yyerror( *s
+ ? Perl_form(aTHX_ "Invalid separator character "
+ "%c%c%c in attribute list", q, *s, q)
+ : "Unterminated attribute list" );
+ if (attrs)
+ op_free(attrs);
+ OPERATOR(':');
}
- /* MUST advance bufptr here to avoid bogus "at end of line"
- context messages from yyerror().
- */
- PL_bufptr = s;
- if (!*s)
- yyerror("Unterminated attribute list");
- else
- yyerror(Perl_form(aTHX_ "Invalid separator character %c%c%c in attribute list",
- q, *s, q));
- if (attrs)
- op_free(attrs);
- OPERATOR(':');
}
got_attrs:
if (attrs) {
TOKEN('(');
case ';':
CLINE;
- tmp = *s++;
- OPERATOR(tmp);
+ {
+ const char tmp = *s++;
+ OPERATOR(tmp);
+ }
case ')':
- tmp = *s++;
- s = skipspace(s);
- if (*s == '{')
- PREBLOCK(tmp);
- TERM(tmp);
+ {
+ const char tmp = *s++;
+ s = skipspace(s);
+ if (*s == '{')
+ PREBLOCK(tmp);
+ TERM(tmp);
+ }
case ']':
s++;
if (PL_lex_brackets <= 0)
TOKEN(';');
case '&':
s++;
- tmp = *s++;
- if (tmp == '&')
+ if (*s++ == '&')
AOPERATOR(ANDAND);
s--;
if (PL_expect == XOPERATOR) {
case '|':
s++;
- tmp = *s++;
- if (tmp == '|')
+ if (*s++ == '|')
AOPERATOR(OROR);
s--;
BOop(OP_BIT_OR);
case '=':
s++;
- tmp = *s++;
- if (tmp == '=')
- Eop(OP_EQ);
- if (tmp == '>')
- OPERATOR(',');
- if (tmp == '~')
- PMop(OP_MATCH);
- if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX) && strchr("+-*/%.^&|<",tmp))
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Reversed %c= operator",(int)tmp);
- s--;
- if (PL_expect == XSTATE && isALPHA(tmp) &&
- (s == PL_linestart+1 || s[-2] == '\n') )
{
- if (PL_in_eval && !PL_rsfp) {
- d = PL_bufend;
- while (s < d) {
- if (*s++ == '\n') {
- incline(s);
- if (strnEQ(s,"=cut",4)) {
- s = strchr(s,'\n');
- if (s)
- s++;
- else
- s = d;
- incline(s);
- goto retry;
+ const char tmp = *s++;
+ if (tmp == '=')
+ Eop(OP_EQ);
+ if (tmp == '>')
+ OPERATOR(',');
+ if (tmp == '~')
+ PMop(OP_MATCH);
+ if (tmp && isSPACE(*s) && ckWARN(WARN_SYNTAX)
+ && strchr("+-*/%.^&|<",tmp))
+ Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "Reversed %c= operator",(int)tmp);
+ s--;
+ if (PL_expect == XSTATE && isALPHA(tmp) &&
+ (s == PL_linestart+1 || s[-2] == '\n') )
+ {
+ if (PL_in_eval && !PL_rsfp) {
+ d = PL_bufend;
+ while (s < d) {
+ if (*s++ == '\n') {
+ incline(s);
+ if (strnEQ(s,"=cut",4)) {
+ s = strchr(s,'\n');
+ if (s)
+ s++;
+ else
+ s = d;
+ incline(s);
+ goto retry;
+ }
+ }
}
+ goto retry;
}
+ s = PL_bufend;
+ PL_doextract = TRUE;
+ goto retry;
}
- goto retry;
- }
- s = PL_bufend;
- PL_doextract = TRUE;
- goto retry;
}
if (PL_lex_brackets < PL_lex_formbrack) {
const char *t;
OPERATOR(ASSIGNOP);
case '!':
s++;
- tmp = *s++;
- if (tmp == '=') {
- /* was this !=~ where !~ was meant?
- * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */
-
- if (*s == '~' && ckWARN(WARN_SYNTAX)) {
- const char *t = s+1;
-
- while (t < PL_bufend && isSPACE(*t))
- ++t;
-
- if (*t == '/' || *t == '?' ||
- ((*t == 'm' || *t == 's' || *t == 'y') && !isALNUM(t[1])) ||
- (*t == 't' && t[1] == 'r' && !isALNUM(t[2])))
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "!=~ should be !~");
- }
- Eop(OP_NE);
- }
- if (tmp == '~')
- PMop(OP_NOT);
+ {
+ const char tmp = *s++;
+ if (tmp == '=') {
+ /* was this !=~ where !~ was meant?
+ * warn on m:!=~\s+([/?]|[msy]\W|tr\W): */
+
+ if (*s == '~' && ckWARN(WARN_SYNTAX)) {
+ const char *t = s+1;
+
+ while (t < PL_bufend && isSPACE(*t))
+ ++t;
+
+ if (*t == '/' || *t == '?' ||
+ ((*t == 'm' || *t == 's' || *t == 'y')
+ && !isALNUM(t[1])) ||
+ (*t == 't' && t[1] == 'r' && !isALNUM(t[2])))
+ Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "!=~ should be !~");
+ }
+ Eop(OP_NE);
+ }
+ if (tmp == '~')
+ PMop(OP_NOT);
+ }
s--;
OPERATOR('!');
case '<':
TERM(sublex_start());
}
s++;
- tmp = *s++;
- if (tmp == '<')
- SHop(OP_LEFT_SHIFT);
- if (tmp == '=') {
- tmp = *s++;
- if (tmp == '>')
- Eop(OP_NCMP);
- s--;
- Rop(OP_LE);
+ {
+ char tmp = *s++;
+ if (tmp == '<')
+ SHop(OP_LEFT_SHIFT);
+ if (tmp == '=') {
+ tmp = *s++;
+ if (tmp == '>')
+ Eop(OP_NCMP);
+ s--;
+ Rop(OP_LE);
+ }
}
s--;
Rop(OP_LT);
case '>':
s++;
- tmp = *s++;
- if (tmp == '>')
- SHop(OP_RIGHT_SHIFT);
- if (tmp == '=')
- Rop(OP_GE);
+ {
+ const char tmp = *s++;
+ if (tmp == '>')
+ SHop(OP_RIGHT_SHIFT);
+ if (tmp == '=')
+ Rop(OP_GE);
+ }
s--;
Rop(OP_GT);
if (PL_expect == XOPERATOR) {
if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) {
PL_expect = XTERM;
- depcom();
+ deprecate_old(commaless_variable_list);
return REPORT(','); /* grandfather non-comma-format format */
}
}
}
d = s;
- tmp = (I32)*s;
- if (PL_lex_state == LEX_NORMAL)
- s = skipspace(s);
+ {
+ const char tmp = *s;
+ if (PL_lex_state == LEX_NORMAL)
+ s = skipspace(s);
- if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) {
- if (*s == '[') {
- PL_tokenbuf[0] = '@';
- if (ckWARN(WARN_SYNTAX)) {
- char *t;
- for(t = s + 1;
- isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$';
- t++) ;
- if (*t++ == ',') {
- PL_bufptr = skipspace(PL_bufptr);
- while (t < PL_bufend && *t != ']')
- t++;
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Multidimensional syntax %.*s not supported",
- (t - PL_bufptr) + 1, PL_bufptr);
- }
- }
- }
- else if (*s == '{') {
- char *t;
- PL_tokenbuf[0] = '%';
- if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX)
- && (t = strchr(s, '}')) && (t = strchr(t, '=')))
- {
- char tmpbuf[sizeof PL_tokenbuf];
- for (t++; isSPACE(*t); t++) ;
- if (isIDFIRST_lazy_if(t,UTF)) {
- STRLEN len;
- t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len);
- for (; isSPACE(*t); t++) ;
- if (*t == ';' && get_cv(tmpbuf, FALSE))
+ if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop)
+ && intuit_more(s)) {
+ if (*s == '[') {
+ PL_tokenbuf[0] = '@';
+ if (ckWARN(WARN_SYNTAX)) {
+ char *t;
+ for(t = s + 1;
+ isSPACE(*t) || isALNUM_lazy_if(t,UTF) || *t == '$';
+ t++) ;
+ if (*t++ == ',') {
+ PL_bufptr = skipspace(PL_bufptr);
+ while (t < PL_bufend && *t != ']')
+ t++;
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "You need to quote \"%s\"", tmpbuf);
+ "Multidimensional syntax %.*s not supported",
+ (int)((t - PL_bufptr) + 1), PL_bufptr);
+ }
}
}
+ else if (*s == '{') {
+ char *t;
+ PL_tokenbuf[0] = '%';
+ if (strEQ(PL_tokenbuf+1, "SIG") && ckWARN(WARN_SYNTAX)
+ && (t = strchr(s, '}')) && (t = strchr(t, '=')))
+ {
+ char tmpbuf[sizeof PL_tokenbuf];
+ for (t++; isSPACE(*t); t++) ;
+ if (isIDFIRST_lazy_if(t,UTF)) {
+ STRLEN len;
+ t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE,
+ &len);
+ for (; isSPACE(*t); t++) ;
+ if (*t == ';' && get_cv(tmpbuf, FALSE))
+ Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "You need to quote \"%s\"",
+ tmpbuf);
+ }
+ }
+ }
}
- }
- PL_expect = XOPERATOR;
- if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) {
- const bool islop = (PL_last_lop == PL_oldoldbufptr);
- if (!islop || PL_last_lop_op == OP_GREPSTART)
- PL_expect = XOPERATOR;
- else if (strchr("$@\"'`q", *s))
- PL_expect = XTERM; /* e.g. print $fh "foo" */
- else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF))
- PL_expect = XTERM; /* e.g. print $fh &sub */
- else if (isIDFIRST_lazy_if(s,UTF)) {
- char tmpbuf[sizeof PL_tokenbuf];
- scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len);
- if ((tmp = keyword(tmpbuf, len))) {
- /* binary operators exclude handle interpretations */
- switch (tmp) {
- case -KEY_x:
- case -KEY_eq:
- case -KEY_ne:
- case -KEY_gt:
- case -KEY_lt:
- case -KEY_ge:
- case -KEY_le:
- case -KEY_cmp:
- break;
- default:
- PL_expect = XTERM; /* e.g. print $fh length() */
- break;
+ PL_expect = XOPERATOR;
+ if (PL_lex_state == LEX_NORMAL && isSPACE((char)tmp)) {
+ const bool islop = (PL_last_lop == PL_oldoldbufptr);
+ if (!islop || PL_last_lop_op == OP_GREPSTART)
+ PL_expect = XOPERATOR;
+ else if (strchr("$@\"'`q", *s))
+ PL_expect = XTERM; /* e.g. print $fh "foo" */
+ else if (strchr("&*<%", *s) && isIDFIRST_lazy_if(s+1,UTF))
+ PL_expect = XTERM; /* e.g. print $fh &sub */
+ else if (isIDFIRST_lazy_if(s,UTF)) {
+ char tmpbuf[sizeof PL_tokenbuf];
+ int t2;
+ scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len);
+ if ((t2 = keyword(tmpbuf, len))) {
+ /* binary operators exclude handle interpretations */
+ switch (t2) {
+ case -KEY_x:
+ case -KEY_eq:
+ case -KEY_ne:
+ case -KEY_gt:
+ case -KEY_lt:
+ case -KEY_ge:
+ case -KEY_le:
+ case -KEY_cmp:
+ break;
+ default:
+ PL_expect = XTERM; /* e.g. print $fh length() */
+ break;
+ }
+ }
+ else {
+ PL_expect = XTERM; /* e.g. print $fh subr() */
}
}
- else {
- PL_expect = XTERM; /* e.g. print $fh subr() */
- }
+ else if (isDIGIT(*s))
+ PL_expect = XTERM; /* e.g. print $fh 3 */
+ else if (*s == '.' && isDIGIT(s[1]))
+ PL_expect = XTERM; /* e.g. print $fh .3 */
+ else if ((*s == '?' || *s == '-' || *s == '+')
+ && !isSPACE(s[1]) && s[1] != '=')
+ PL_expect = XTERM; /* e.g. print $fh -1 */
+ else if (*s == '/' && !isSPACE(s[1]) && s[1] != '='
+ && s[1] != '/')
+ PL_expect = XTERM; /* e.g. print $fh /.../
+ XXX except DORDOR operator
+ */
+ else if (*s == '<' && s[1] == '<' && !isSPACE(s[2])
+ && s[2] != '=')
+ PL_expect = XTERM; /* print $fh <<"EOF" */
}
- else if (isDIGIT(*s))
- PL_expect = XTERM; /* e.g. print $fh 3 */
- else if (*s == '.' && isDIGIT(s[1]))
- PL_expect = XTERM; /* e.g. print $fh .3 */
- else if ((*s == '?' || *s == '-' || *s == '+')
- && !isSPACE(s[1]) && s[1] != '=')
- PL_expect = XTERM; /* e.g. print $fh -1 */
- else if (*s == '/' && !isSPACE(s[1]) && s[1] != '=' && s[1] != '/')
- PL_expect = XTERM; /* e.g. print $fh /.../
- XXX except DORDOR operator */
- else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]) && s[2] != '=')
- PL_expect = XTERM; /* print $fh <<"EOF" */
}
PL_pending_ident = '$';
TOKEN('$');
PL_bufptr = skipspace(PL_bufptr);
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
"Scalar value %.*s better written as $%.*s",
- t-PL_bufptr, PL_bufptr, t-PL_bufptr-1, PL_bufptr+1);
+ (int)(t-PL_bufptr), PL_bufptr,
+ (int)(t-PL_bufptr-1), PL_bufptr+1);
}
}
}
}
case '?': /* may either be conditional or pattern */
if(PL_expect == XOPERATOR) {
- tmp = *s++;
+ char tmp = *s++;
if(tmp == '?') {
OPERATOR('?');
}
goto rightbracket;
}
if (PL_expect == XOPERATOR || !isDIGIT(s[1])) {
- tmp = *s++;
+ char tmp = *s++;
if (*s == tmp) {
s++;
if (*s == tmp) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
s = scan_num(s, &yylval);
- DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw number in '%s'\n", s);
- } );
+ DEBUG_T( { S_printbuf(aTHX_ "### Saw number in %s\n", s); } );
if (PL_expect == XOPERATOR)
no_op("Number",s);
TERM(THING);
case '\'':
s = scan_str(s,FALSE,FALSE);
- DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw string before '%s'\n", s);
- } );
+ DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } );
if (PL_expect == XOPERATOR) {
if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) {
PL_expect = XTERM;
- depcom();
+ deprecate_old(commaless_variable_list);
return REPORT(','); /* grandfather non-comma-format format */
}
else
case '"':
s = scan_str(s,FALSE,FALSE);
- DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw string before '%s'\n", s);
- } );
+ DEBUG_T( { S_printbuf(aTHX_ "### Saw string before %s\n", s); } );
if (PL_expect == XOPERATOR) {
if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) {
PL_expect = XTERM;
- depcom();
+ deprecate_old(commaless_variable_list);
return REPORT(','); /* grandfather non-comma-format format */
}
else
case '`':
s = scan_str(s,FALSE,FALSE);
- DEBUG_T( { PerlIO_printf(Perl_debug_log,
- "### Saw backtick string before '%s'\n", s);
- } );
+ DEBUG_T( { S_printbuf(aTHX_ "### Saw backtick string before %s\n", s); } );
if (PL_expect == XOPERATOR)
no_op("Backticks",s);
if (!s)
const char c = *start;
GV *gv;
*start = '\0';
- gv = gv_fetchpv(s, FALSE, SVt_PVCV);
+ gv = gv_fetchpv(s, 0, SVt_PVCV);
*start = c;
if (!gv) {
s = scan_num(s, &yylval);
case 'z': case 'Z':
keylookup: {
- orig_keyword = 0;
- gv = Nullgv;
- gvp = 0;
+ I32 tmp;
+ I32 orig_keyword = 0;
+ GV *gv = NULL;
+ GV **gvp = NULL;
PL_bufptr = s;
s = scan_word(s, PL_tokenbuf, sizeof PL_tokenbuf, FALSE, &len);
}
if (tmp < 0) { /* second-class keyword? */
- GV *ogv = Nullgv; /* override (winner) */
- GV *hgv = Nullgv; /* hidden (loser) */
+ GV *ogv = NULL; /* override (winner) */
+ GV *hgv = NULL; /* hidden (loser) */
if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) {
CV *cv;
- if ((gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV)) &&
+ if ((gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV)) &&
(cv = GvCVu(gv)))
{
if (GvIMPORTED_CV(gv))
{
tmp = 0; /* any sub overrides "weak" keyword */
}
- else if (gv && !gvp
- && tmp == -KEY_err
- && GvCVu(gv)
- && PL_expect != XOPERATOR
- && PL_expect != XTERMORDORDOR)
- {
- /* any sub overrides the "err" keyword, except when really an
- * operator is expected */
- tmp = 0;
- }
else { /* no override */
tmp = -tmp;
if (tmp == KEY_dump && ckWARN(WARN_MISC)) {
switch (tmp) {
default: /* not a keyword */
+ /* Trade off - by using this evil construction we can pull the
+ variable gv into the block labelled keylookup. If not, then
+ we have to give it function scope so that the goto from the
+ earlier ':' case doesn't bypass the initialisation. */
+ if (0) {
+ just_a_word_zero_gv:
+ gv = NULL;
+ gvp = NULL;
+ }
just_a_word: {
SV *sv;
int pkgname = 0;
const char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]);
+ CV *cv;
/* Get the rest if it looks like a package qualifier */
if (len > 2 &&
PL_tokenbuf[len - 2] == ':' && PL_tokenbuf[len - 1] == ':')
{
- if (ckWARN(WARN_BAREWORD) && ! gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVHV))
+ if (ckWARN(WARN_BAREWORD)
+ && ! gv_fetchpv(PL_tokenbuf, 0, SVt_PVHV))
Perl_warner(aTHX_ packWARN(WARN_BAREWORD),
"Bareword \"%s\" refers to nonexistent package",
PL_tokenbuf);
}
else {
len = 0;
- if (!gv)
- gv = gv_fetchpv(PL_tokenbuf, FALSE, SVt_PVCV);
+ if (!gv) {
+ /* Mustn't actually add anything to a symbol table.
+ But also don't want to "initialise" any placeholder
+ constants that might already be there into full
+ blown PVGVs with attached PVCV. */
+ gv = gv_fetchpv(PL_tokenbuf, GV_NOADD_NOINIT,
+ SVt_PVCV);
+ }
}
/* if we saw a global override before, get the right name */
if (gvp) {
- sv = newSVpvn("CORE::GLOBAL::",14);
+ sv = newSVpvs("CORE::GLOBAL::");
sv_catpv(sv,PL_tokenbuf);
}
else {
if (len)
goto safe_bareword;
+ /* Do the explicit type check so that we don't need to force
+ the initialisation of the symbol table to have a real GV.
+ Beware - gv may not really be a PVGV, cv may not really be
+ a PVCV, (because of the space optimisations that gv_init
+ understands) But they're true if for this symbol there is
+ respectively a typeglob and a subroutine.
+ */
+ cv = gv ? ((SvTYPE(gv) == SVt_PVGV)
+ /* Real typeglob, so get the real subroutine: */
+ ? GvCVu(gv)
+ /* A proxy for a subroutine in this package? */
+ : SvOK(gv) ? (CV *) gv : NULL)
+ : NULL;
+
/* See if it's the indirect object for a list operator. */
if (PL_oldoldbufptr &&
/* Two barewords in a row may indicate method call. */
- if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') && (tmp=intuit_method(s,gv)))
+ if ((isIDFIRST_lazy_if(s,UTF) || *s == '$') &&
+ (tmp = intuit_method(s, gv, cv)))
return REPORT(tmp);
/* If not a declared subroutine, it's an indirect object. */
/* (But it's an indir obj regardless for sort.) */
+ /* Also, if "_" follows a filetest operator, it's a bareword */
- if ( !immediate_paren && (PL_last_lop_op == OP_SORT ||
- ((!gv || !GvCVu(gv)) &&
+ if (
+ ( !immediate_paren && (PL_last_lop_op == OP_SORT ||
+ ((!gv || !cv) &&
(PL_last_lop_op != OP_MAPSTART &&
PL_last_lop_op != OP_GREPSTART))))
+ || (PL_tokenbuf[0] == '_' && PL_tokenbuf[1] == '\0'
+ && ((PL_opargs[PL_last_lop_op] & OA_CLASS_MASK) == OA_FILESTATOP))
+ )
{
PL_expect = (PL_last_lop == PL_oldoldbufptr) ? XTERM : XOPERATOR;
goto bareword;
/* If followed by a paren, it's certainly a subroutine. */
if (*s == '(') {
CLINE;
- if (gv && GvCVu(gv)) {
+ if (cv) {
for (d = s + 1; SPACE_OR_TAB(*d); d++) ;
- if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) {
+ if (*d == ')' && (sv = gv_const_sv(gv))) {
s = d + 1;
goto its_constant;
}
/* If followed by var or block, call it a method (unless sub) */
- if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) {
+ if ((*s == '$' || *s == '{') && (!gv || !cv)) {
PL_last_lop = PL_oldbufptr;
PL_last_lop_op = OP_METHOD;
PREBLOCK(METHOD);
if (!orig_keyword
&& (isIDFIRST_lazy_if(s,UTF) || *s == '$')
- && (tmp = intuit_method(s,gv)))
+ && (tmp = intuit_method(s, gv, cv)))
return REPORT(tmp);
/* Not a method, so call it a subroutine (if defined) */
- if (gv && GvCVu(gv)) {
- CV* cv;
+ if (cv) {
if (lastchar == '-' && ckWARN_d(WARN_AMBIGUOUS))
Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS),
"Ambiguous use of -%s resolved as -&%s()",
PL_tokenbuf, PL_tokenbuf);
/* Check for a constant sub */
- cv = GvCV(gv);
- if ((sv = cv_const_sv(cv))) {
+ if ((sv = gv_const_sv(gv))) {
its_constant:
SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
}
/* Resolve to GV now. */
+ if (SvTYPE(gv) != SVt_PVGV) {
+ gv = gv_fetchpv(PL_tokenbuf, 0, SVt_PVCV);
+ assert (SvTYPE(gv) == SVt_PVGV);
+ /* cv must have been some sort of placeholder, so
+ now needs replacing with a real code reference. */
+ cv = GvCV(gv);
+ }
+
op_free(yylval.opval);
yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
yylval.opval->op_private |= OPpENTERSUB_NOPAREN;
const char *pname = "main";
if (PL_tokenbuf[2] == 'D')
pname = HvNAME_get(PL_curstash ? PL_curstash : PL_defstash);
- gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO);
+ gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), GV_ADD,
+ SVt_PVIO);
GvMULTI_on(gv);
if (!GvIO(gv))
GvIOp(gv) = newIO();
Perl_croak(aTHX_ "CORE::%s is not a keyword", PL_tokenbuf);
if (tmp < 0)
tmp = -tmp;
- else if (tmp == KEY_require)
+ else if (tmp == KEY_require || tmp == KEY_do)
/* that's a way to remember we saw "CORE::" */
- orig_keyword = KEY_require;
+ orig_keyword = tmp;
goto reserved_word;
}
goto just_a_word;
case KEY_bless:
LOP(OP_BLESS,XTERM);
+ case KEY_break:
+ FUN0(OP_BREAK);
+
case KEY_chop:
UNI(OP_CHOP);
case KEY_continue:
+ /* When 'use switch' is in effect, continue has a dual
+ life as a control operator. */
+ {
+ if (!FEATURE_IS_ENABLED("switch"))
+ PREBLOCK(CONTINUE);
+ else {
+ /* We have to disambiguate the two senses of
+ "continue". If the next token is a '{' then
+ treat it as the start of a continue block;
+ otherwise treat it as a control operator.
+ */
+ s = skipspace(s);
+ if (*s == '{')
PREBLOCK(CONTINUE);
+ else
+ FUN0(OP_CONTINUE);
+ }
+ }
case KEY_chdir:
- (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
+ (void)gv_fetchpv("ENV", GV_ADD, SVt_PVHV); /* may use HOME */
UNI(OP_CHDIR);
case KEY_close:
case KEY_chroot:
UNI(OP_CHROOT);
+ case KEY_default:
+ PREBLOCK(DEFAULT);
+
case KEY_do:
s = skipspace(s);
if (*s == '{')
PRETERMBLOCK(DO);
if (*s != '\'')
s = force_word(s,WORD,TRUE,TRUE,FALSE);
+ if (orig_keyword == KEY_do) {
+ orig_keyword = 0;
+ yylval.ival = 1;
+ }
+ else
+ yylval.ival = 0;
OPERATOR(DO);
case KEY_die:
case KEY_getlogin:
FUN0(OP_GETLOGIN);
+ case KEY_given:
+ yylval.ival = CopLINE(PL_curcop);
+ OPERATOR(GIVEN);
+
case KEY_glob:
set_csh();
LOP(OP_GLOB,XTERM);
/* [perl #16184] */
&& !(t[0] == '=' && t[1] == '>')
) {
+ int len = (int)(d-s);
Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE),
"Precedence problem: open %.*s should be open(%.*s)",
- d - s, s, d - s, s);
+ len, s, len, s);
}
}
LOP(OP_OPEN,XTERM);
else
TOKEN(1); /* force error */
+ case KEY_say:
+ checkcomma(s,PL_tokenbuf,"filehandle");
+ LOP(OP_SAY,XREF);
+
case KEY_chomp:
UNI(OP_CHOMP);
sv_setpv(PL_subname, tmpbuf);
else {
sv_setsv(PL_subname,PL_curstname);
- sv_catpvn(PL_subname,"::",2);
+ sv_catpvs(PL_subname,"::");
sv_catpvn(PL_subname,tmpbuf,len);
}
s = skipspace(d);
case KEY_vec:
LOP(OP_VEC,XTERM);
+ case KEY_when:
+ yylval.ival = CopLINE(PL_curcop);
+ OPERATOR(WHEN);
+
case KEY_while:
yylval.ival = CopLINE(PL_curcop);
OPERATOR(WHILE);
char ctl_l[2];
ctl_l[0] = toCTRL('L');
ctl_l[1] = '\0';
- gv_fetchpv(ctl_l,TRUE, SVt_PV);
+ gv_fetchpv(ctl_l, GV_ADD, SVt_PV);
}
#else
- gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
+ gv_fetchpv("\f", GV_ADD, SVt_PV); /* Make sure $^L is defined */
#endif
UNI(OP_ENTERWRITE);
PL_pending_ident = 0;
DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Tokener saw identifier '%s'\n", PL_tokenbuf); });
+ "### Pending identifier '%s'\n", PL_tokenbuf); });
/* if we're in a my(), we can't allow dynamics here.
$foo'bar has already been turned into $foo::bar, so
HV * const stash = PAD_COMPNAME_OURSTASH(tmp);
HEK * const stashname = HvNAME_HEK(stash);
SV * const sym = newSVhek(stashname);
- sv_catpvn(sym, "::", 2);
+ sv_catpvs(sym, "::");
sv_catpv(sym, PL_tokenbuf+1);
yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym);
yylval.opval->op_private = OPpCONST_ENTERED;
table.
*/
if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) {
- GV *gv = gv_fetchpv(PL_tokenbuf+1, FALSE, SVt_PVAV);
+ GV *gv = gv_fetchpv(PL_tokenbuf+1, 0, SVt_PVAV);
if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv)))
&& ckWARN(WARN_AMBIGUOUS))
{
/* build ops for a bareword */
yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0));
yylval.opval->op_private = OPpCONST_ENTERED;
- gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE,
- ((PL_tokenbuf[0] == '$') ? SVt_PV
- : (PL_tokenbuf[0] == '@') ? SVt_PVAV
- : SVt_PVHV));
+ gv_fetchpv(
+ PL_tokenbuf+1,
+ PL_in_eval
+ ? (GV_ADDMULTI | GV_ADDINEVAL)
+ /* If the identifier refers to a stash, don't autovivify it.
+ * Change 24660 had the side effect of causing symbol table
+ * hashes to always be defined, even if they were freshly
+ * created and the only reference in the entire program was
+ * the single statement with the defined %foo::bar:: test.
+ * It appears that all code in the wild doing this actually
+ * wants to know whether sub-packages have been loaded, so
+ * by avoiding auto-vivifying symbol tables, we ensure that
+ * defined %foo::bar:: continues to be false, and the existing
+ * tests still give the expected answers, even though what
+ * they're actually testing has now changed subtly.
+ */
+ : !(*PL_tokenbuf == '%' && *(d = PL_tokenbuf + strlen(PL_tokenbuf) - 1) == ':' && d[-1] == ':'),
+ ((PL_tokenbuf[0] == '$') ? SVt_PV
+ : (PL_tokenbuf[0] == '@') ? SVt_PVAV
+ : SVt_PVHV));
return WORD;
}
goto unknown;
}
- case 3: /* 28 tokens of length 3 */
+ case 3: /* 29 tokens of length 3 */
switch (name[0])
{
case 'E':
case 'r':
if (name[2] == 'r')
{ /* err */
- return -KEY_err;
+ return (FEATURE_IS_ENABLED("err") ? -KEY_err : 0);
}
goto unknown;
case 's':
switch (name[1])
{
+ case 'a':
+ if (name[2] == 'y')
+ { /* say */
+ return (FEATURE_IS_ENABLED("say") ? -KEY_say : 0);
+ }
+
+ goto unknown;
+
case 'i':
if (name[2] == 'n')
{ /* sin */
goto unknown;
}
- case 4: /* 40 tokens of length 4 */
+ case 4: /* 41 tokens of length 4 */
switch (name[0])
{
case 'C':
}
case 'w':
- if (name[1] == 'a')
+ switch (name[1])
{
+ case 'a':
switch (name[2])
{
case 'i':
default:
goto unknown;
}
+
+ case 'h':
+ if (name[2] == 'e' &&
+ name[3] == 'n')
+ { /* when */
+ return (FEATURE_IS_ENABLED("switch") ? KEY_when : 0);
}
goto unknown;
goto unknown;
}
- case 5: /* 36 tokens of length 5 */
+ default:
+ goto unknown;
+ }
+
+ case 5: /* 38 tokens of length 5 */
switch (name[0])
{
case 'B':
}
case 'b':
- if (name[1] == 'l' &&
- name[2] == 'e' &&
+ switch (name[1])
+ {
+ case 'l':
+ if (name[2] == 'e' &&
name[3] == 's' &&
name[4] == 's')
{ /* bless */
goto unknown;
+ case 'r':
+ if (name[2] == 'e' &&
+ name[3] == 'a' &&
+ name[4] == 'k')
+ { /* break */
+ return (FEATURE_IS_ENABLED("switch") ? -KEY_break : 0);
+ }
+
+ goto unknown;
+
+ default:
+ goto unknown;
+ }
+
case 'c':
switch (name[1])
{
goto unknown;
}
+ case 'g':
+ if (name[1] == 'i' &&
+ name[2] == 'v' &&
+ name[3] == 'e' &&
+ name[4] == 'n')
+ { /* given */
+ return (FEATURE_IS_ENABLED("switch") ? KEY_given : 0);
+ }
+
+ goto unknown;
+
case 'i':
switch (name[1])
{
goto unknown;
}
- case 7: /* 28 tokens of length 7 */
+ case 7: /* 29 tokens of length 7 */
switch (name[0])
{
case 'D':
goto unknown;
case 'e':
- if (name[2] == 'f' &&
- name[3] == 'i' &&
- name[4] == 'n' &&
+ if (name[2] == 'f')
+ {
+ switch (name[3])
+ {
+ case 'a':
+ if (name[4] == 'u' &&
+ name[5] == 'l' &&
+ name[6] == 't')
+ { /* default */
+ return (FEATURE_IS_ENABLED("switch") ? KEY_default : 0);
+ }
+
+ goto unknown;
+
+ case 'i':
+ if (name[4] == 'n' &&
name[5] == 'e' &&
name[6] == 'd')
{ /* defined */
default:
goto unknown;
}
+ }
+
+ goto unknown;
+
+ default:
+ goto unknown;
+ }
case 'f':
if (name[1] == 'o' &&
while (s < PL_bufend && isSPACE(*s))
s++;
if (*s == ',') {
- int kw;
+ I32 kw;
*s = '\0'; /* XXX If we didn't do this, we could const a lot of toke.c */
kw = keyword(w, s - w) || get_cv(w, FALSE) != 0;
*s = ',';
/* Check the eval first */
if (!PL_in_eval && SvTRUE(ERRSV)) {
- sv_catpv(ERRSV, "Propagated");
+ sv_catpvs(ERRSV, "Propagated");
yyerror(SvPV_nolen_const(ERRSV)); /* Duplicates the message inside eval */
(void)POPs;
res = SvREFCNT_inc(sv);
if ((pm->op_pmflags & PMf_CONTINUE) && !(pm->op_pmflags & PMf_GLOBAL)
&& ckWARN(WARN_REGEXP))
{
- Perl_warner(aTHX_ packWARN(WARN_REGEXP), c_without_g);
+ Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless without /g" );
}
pm->op_pmpermflags = pm->op_pmflags;
break;
}
- /* /c is not meaningful with s/// */
- if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP))
- {
- Perl_warner(aTHX_ packWARN(WARN_REGEXP), c_in_subst);
+ if ((pm->op_pmflags & PMf_CONTINUE) && ckWARN(WARN_REGEXP)) {
+ Perl_warner(aTHX_ packWARN(WARN_REGEXP), "Use of /c modifier is meaningless in s///" );
}
if (es) {
PL_sublex_info.super_bufend = PL_bufend;
PL_multi_end = 0;
pm->op_pmflags |= PMf_EVAL;
- repl = newSVpvn("",0);
+ repl = newSVpvs("");
while (es-- > 0)
sv_catpv(repl, es ? "eval " : "do ");
- sv_catpvn(repl, "{ ", 2);
+ sv_catpvs(repl, "{ ");
sv_catsv(repl, PL_lex_repl);
- sv_catpvn(repl, " };", 2);
+ sv_catpvs(repl, " }");
SvEVALED_on(repl);
SvREFCNT_dec(PL_lex_repl);
PL_lex_repl = repl;
I32 len;
SV *tmpstr;
char term;
- const char newline[] = "\n";
const char *found_newline;
register char *d;
register char *e;
s = olds;
}
#endif
- if ( outer || !(found_newline = ninstr(s,PL_bufend,newline,newline+1)) ) {
+ if ( outer || !(found_newline = memchr(s, '\n', PL_bufend - s)) ) {
herewas = newSVpvn(s,PL_bufend-s);
}
else {
sv_setsv(sv,PL_linestr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
- av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop),sv);
+ av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop),sv);
}
if (*s == term && memEQ(s,PL_tokenbuf,len)) {
STRLEN off = PL_bufend - 1 - SvPVX_const(PL_linestr);
Copy("ARGV",d,5,char);
/* Check whether readline() is overriden */
- if (((gv_readline = gv_fetchpv("readline", FALSE, SVt_PVCV))
+ if (((gv_readline = gv_fetchpv("readline", 0, SVt_PVCV))
&& GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))
||
((gvp = (GV**)hv_fetch(PL_globalstash, "readline", 8, FALSE))
HV *stash = PAD_COMPNAME_OURSTASH(tmp);
HEK *stashname = HvNAME_HEK(stash);
SV *sym = sv_2mortal(newSVhek(stashname));
- sv_catpvn(sym, "::", 2);
+ sv_catpvs(sym, "::");
sv_catpv(sym, d+1);
d = SvPVX(sym);
goto intro_sym;
/* If it's none of the above, it must be a literal filehandle
(<Foo::BAR> or <FOO>) so build a simple readline OP */
else {
- GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
+ GV *gv = gv_fetchpv(d, GV_ADD, SVt_PVIO);
PL_lex_op = readline_overriden
? (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED,
append_elem(OP_LIST,
/* update debugger info */
if (PERLDB_LINE && PL_curstash != PL_debstash) {
- SV *sv = NEWSV(88,0);
+ SV * const sv = NEWSV(88,0);
sv_upgrade(sv, SVt_PVMG);
sv_setsv(sv,PL_linestr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
- av_store(CopFILEAV(PL_curcop), (I32)CopLINE(PL_curcop), sv);
+ av_store(CopFILEAVx(PL_curcop), (I32)CopLINE(PL_curcop), sv);
}
/* having changed the buffer, we must update PL_bufend */
NV nv; /* number read, as a double */
SV *sv = Nullsv; /* place to put the converted number */
bool floatit; /* boolean: int or float? */
- const char *lastub = 0; /* position of last underbar */
+ const char *lastub = NULL; /* position of last underbar */
static char const number_too_long[] = "Number too long";
/* We use the first character to decide what type of number this is */
{
register char *eol;
register char *t;
- SV *stuff = newSVpvn("",0);
+ SV *stuff = newSVpvs("");
bool needargs = FALSE;
bool eofmt = FALSE;
where = "within string";
}
else {
- SV *where_sv = sv_2mortal(newSVpvn("next char ", 10));
+ SV *where_sv = sv_2mortal(newSVpvs("next char "));
if (yychar < 32)
Perl_sv_catpvf(aTHX_ where_sv, "^%c", toCTRL(yychar));
else if (isPRINT_LC(yychar))
OutCopFILE(PL_curcop));
}
PL_in_my = 0;
- PL_in_my_stash = Nullhv;
+ PL_in_my_stash = NULL;
return 0;
}
#ifdef __SC__
static void
restore_rsfp(pTHX_ void *f)
{
- PerlIO *fp = (PerlIO*)f;
+ PerlIO * const fp = (PerlIO*)f;
if (PL_rsfp == PerlIO_stdin())
PerlIO_clearerr(PL_rsfp);
}
if (!isALPHA(*pos)) {
- UV rev;
U8 tmpbuf[UTF8_MAXBYTES+1];
- U8 *tmpend;
if (*s == 'v') s++; /* get past 'v' */
sv_setpvn(sv, "", 0);
for (;;) {
- rev = 0;
+ U8 *tmpend;
+ UV rev = 0;
{
/* this is atoi() that tolerates underscores */
const char *end = pos;
https://perl5.git.perl.org / perl5.git / blobdiff