Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
a687059c | 4 | * |
9ef589d8 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. | |
8d063cd8 | 7 | * |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? | |
14a38fd5 | 12 | * All that is gold does not glitter, not all those who wander are lost.' |
8d063cd8 LW |
13 | */ |
14 | ||
15 | %{ | |
79072805 | 16 | #include "EXTERN.h" |
864dbfa3 | 17 | #define PERL_IN_PERLY_C |
8d063cd8 | 18 | #include "perl.h" |
378cc40b | 19 | |
864dbfa3 | 20 | #define dep() deprecate("\"do\" to call subroutines") |
f0fcb552 | 21 | |
09bef843 SB |
22 | /* stuff included here to make perly_c.diff apply better */ |
23 | ||
24 | #define yydebug PL_yydebug | |
25 | #define yynerrs PL_yynerrs | |
26 | #define yyerrflag PL_yyerrflag | |
27 | #define yychar PL_yychar | |
28 | #define yyval PL_yyval | |
29 | #define yylval PL_yylval | |
30 | ||
31 | struct ysv { | |
32 | short* yyss; | |
33 | YYSTYPE* yyvs; | |
34 | int oldyydebug; | |
35 | int oldyynerrs; | |
36 | int oldyyerrflag; | |
37 | int oldyychar; | |
38 | YYSTYPE oldyyval; | |
39 | YYSTYPE oldyylval; | |
40 | }; | |
41 | ||
e1f15930 | 42 | static void yydestruct(pTHXo_ void *ptr); |
09bef843 | 43 | |
8d063cd8 LW |
44 | %} |
45 | ||
46 | %start prog | |
47 | ||
9d116dd7 | 48 | %{ |
09bef843 | 49 | #if 0 /* get this from perly.h instead */ |
9d116dd7 JH |
50 | %} |
51 | ||
8d063cd8 | 52 | %union { |
79072805 LW |
53 | I32 ival; |
54 | char *pval; | |
55 | OP *opval; | |
56 | GV *gvval; | |
8d063cd8 LW |
57 | } |
58 | ||
9d116dd7 | 59 | %{ |
09bef843 | 60 | #endif /* 0 */ |
a1a0e61e TD |
61 | |
62 | #ifdef USE_PURE_BISON | |
63 | #define YYLEX_PARAM (&yychar) | |
64 | #endif | |
09bef843 | 65 | |
9d116dd7 JH |
66 | %} |
67 | ||
fad39ff1 | 68 | %token <ival> '{' |
f0fcb552 | 69 | |
a0d0e21e | 70 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 | 71 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
79072805 | 72 | %token <pval> LABEL |
a0d0e21e | 73 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
79072805 LW |
74 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
75 | %token <ival> LOOPEX DOTDOT | |
36477c24 | 76 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
79072805 | 77 | %token <ival> RELOP EQOP MULOP ADDOP |
55497cff | 78 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
09bef843 SB |
79 | %token <ival> LOCAL MY MYSUB |
80 | %token COLONATTR | |
79072805 | 81 | |
09bef843 | 82 | %type <ival> prog decl format startsub startanonsub startformsub |
28757baa | 83 | %type <ival> remember mremember '&' |
bbce6d69 | 84 | %type <opval> block mblock lineseq line loop cond else |
fad39ff1 | 85 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
bbce6d69 | 86 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
44a8e56a | 87 | %type <opval> listexpr listexprcom indirob listop method |
88 | %type <opval> formname subname proto subbody cont my_scalar | |
09bef843 | 89 | %type <opval> subattrlist myattrlist mysubrout myattrterm myterm |
79072805 | 90 | %type <pval> label |
79072805 | 91 | |
fad39ff1 SM |
92 | %nonassoc PREC_LOW |
93 | %nonassoc LOOPEX | |
94 | ||
a0d0e21e | 95 | %left <ival> OROP |
463ee0b2 | 96 | %left ANDOP |
c07a80fd | 97 | %right NOTOP |
36477c24 | 98 | %nonassoc LSTOP LSTOPSUB |
8d063cd8 | 99 | %left ',' |
a0d0e21e | 100 | %right <ival> ASSIGNOP |
8d063cd8 LW |
101 | %right '?' ':' |
102 | %nonassoc DOTDOT | |
103 | %left OROR | |
104 | %left ANDAND | |
79072805 LW |
105 | %left <ival> BITOROP |
106 | %left <ival> BITANDOP | |
a687059c LW |
107 | %nonassoc EQOP |
108 | %nonassoc RELOP | |
36477c24 | 109 | %nonassoc UNIOP UNIOPSUB |
79072805 | 110 | %left <ival> SHIFTOP |
a687059c LW |
111 | %left ADDOP |
112 | %left MULOP | |
8990e307 | 113 | %left <ival> MATCHOP |
79072805 LW |
114 | %right '!' '~' UMINUS REFGEN |
115 | %right <ival> POWOP | |
116 | %nonassoc PREINC PREDEC POSTINC POSTDEC | |
8990e307 | 117 | %left ARROW |
fad39ff1 | 118 | %nonassoc <ival> ')' |
8d063cd8 | 119 | %left '(' |
fad39ff1 | 120 | %left '[' '{' |
8d063cd8 LW |
121 | |
122 | %% /* RULES */ | |
123 | ||
ae986130 LW |
124 | prog : /* NULL */ |
125 | { | |
126 | #if defined(YYDEBUG) && defined(DEBUGGING) | |
3280af22 | 127 | yydebug = (PL_debug & 1); |
ae986130 | 128 | #endif |
3280af22 | 129 | PL_expect = XSTATE; |
ae986130 LW |
130 | } |
131 | /*CONTINUED*/ lineseq | |
a0d0e21e | 132 | { newPROG($2); } |
8d063cd8 LW |
133 | ; |
134 | ||
a687059c | 135 | block : '{' remember lineseq '}' |
3280af22 NIS |
136 | { if (PL_copline > (line_t)$1) |
137 | PL_copline = $1; | |
36477c24 | 138 | $$ = block_end($2, $3); } |
a0d0e21e LW |
139 | ; |
140 | ||
55497cff | 141 | remember: /* NULL */ /* start a full lexical scope */ |
142 | { $$ = block_start(TRUE); } | |
143 | ; | |
144 | ||
bbce6d69 | 145 | mblock : '{' mremember lineseq '}' |
3280af22 NIS |
146 | { if (PL_copline > (line_t)$1) |
147 | PL_copline = $1; | |
36477c24 | 148 | $$ = block_end($2, $3); } |
55497cff | 149 | ; |
150 | ||
151 | mremember: /* NULL */ /* start a partial lexical scope */ | |
152 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
153 | ; |
154 | ||
155 | lineseq : /* NULL */ | |
79072805 LW |
156 | { $$ = Nullop; } |
157 | | lineseq decl | |
158 | { $$ = $1; } | |
8d063cd8 | 159 | | lineseq line |
463ee0b2 | 160 | { $$ = append_list(OP_LINESEQ, |
a0d0e21e | 161 | (LISTOP*)$1, (LISTOP*)$2); |
3280af22 NIS |
162 | PL_pad_reset_pending = TRUE; |
163 | if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; } | |
8d063cd8 LW |
164 | ; |
165 | ||
79072805 LW |
166 | line : label cond |
167 | { $$ = newSTATEOP(0, $1, $2); } | |
8d063cd8 LW |
168 | | loop /* loops add their own labels */ |
169 | | label ';' | |
170 | { if ($1 != Nullch) { | |
79072805 | 171 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 LW |
172 | } |
173 | else { | |
79072805 | 174 | $$ = Nullop; |
3280af22 | 175 | PL_copline = NOLINE; |
32c2e4fb | 176 | } |
3280af22 | 177 | PL_expect = XSTATE; } |
8d063cd8 | 178 | | label sideff ';' |
79072805 | 179 | { $$ = newSTATEOP(0, $1, $2); |
3280af22 | 180 | PL_expect = XSTATE; } |
8d063cd8 LW |
181 | ; |
182 | ||
a687059c | 183 | sideff : error |
79072805 | 184 | { $$ = Nullop; } |
a687059c | 185 | | expr |
79072805 | 186 | { $$ = $1; } |
a687059c | 187 | | expr IF expr |
79072805 | 188 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 189 | | expr UNLESS expr |
79072805 | 190 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 191 | | expr WHILE expr |
8990e307 | 192 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 193 | | expr UNTIL iexpr |
194 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
ecca16b0 CS |
195 | | expr FOR expr |
196 | { $$ = newFOROP(0, Nullch, $2, | |
197 | Nullop, $3, $1, Nullop); } | |
79072805 LW |
198 | ; |
199 | ||
200 | else : /* NULL */ | |
201 | { $$ = Nullop; } | |
55497cff | 202 | | ELSE mblock |
38a230cb | 203 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); } |
55497cff | 204 | | ELSIF '(' mexpr ')' mblock else |
3280af22 | 205 | { PL_copline = $1; |
2c15bef3 | 206 | $$ = newCONDOP(0, $3, scope($5), $6); |
3280af22 | 207 | PL_hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
208 | ; |
209 | ||
55497cff | 210 | cond : IF '(' remember mexpr ')' mblock else |
3280af22 | 211 | { PL_copline = $1; |
36477c24 | 212 | $$ = block_end($3, |
bbce6d69 | 213 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 214 | | UNLESS '(' remember miexpr ')' mblock else |
3280af22 | 215 | { PL_copline = $1; |
36477c24 | 216 | $$ = block_end($3, |
bbce6d69 | 217 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
218 | ; |
219 | ||
220 | cont : /* NULL */ | |
221 | { $$ = Nullop; } | |
222 | | CONTINUE block | |
223 | { $$ = scope($2); } | |
224 | ; | |
225 | ||
55497cff | 226 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
3280af22 | 227 | { PL_copline = $2; |
36477c24 | 228 | $$ = block_end($4, |
55497cff | 229 | newSTATEOP(0, $1, |
bbce6d69 | 230 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 231 | $2, $5, $7, $8))); } |
55497cff | 232 | | label UNTIL '(' remember miexpr ')' mblock cont |
3280af22 | 233 | { PL_copline = $2; |
36477c24 | 234 | $$ = block_end($4, |
55497cff | 235 | newSTATEOP(0, $1, |
bbce6d69 | 236 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 237 | $2, $5, $7, $8))); } |
bbce6d69 | 238 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 239 | { $$ = block_end($4, |
bbce6d69 | 240 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
241 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 242 | { $$ = block_end($5, |
bbce6d69 | 243 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
244 | $6, $8, $9)); } | |
245 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 246 | { $$ = block_end($4, |
55497cff | 247 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 248 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 249 | /* basically fake up an initialize-while lineseq */ |
fb73857a | 250 | { OP *forop = append_elem(OP_LINESEQ, |
251 | scalar($5), | |
252 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
253 | $2, scalar($7), | |
254 | $11, scalar($9))); | |
3280af22 | 255 | PL_copline = $2; |
fb73857a | 256 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } |
79072805 | 257 | | label block cont /* a block is a loop that happens once */ |
fb73857a | 258 | { $$ = newSTATEOP(0, $1, |
259 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
260 | NOLINE, Nullop, $2, $3)); } | |
8d063cd8 LW |
261 | ; |
262 | ||
263 | nexpr : /* NULL */ | |
79072805 | 264 | { $$ = Nullop; } |
8d063cd8 LW |
265 | | sideff |
266 | ; | |
267 | ||
268 | texpr : /* NULL means true */ | |
b73d6f50 | 269 | { (void)scan_num("1", &yylval); $$ = yylval.opval; } |
8d063cd8 LW |
270 | | expr |
271 | ; | |
272 | ||
55497cff | 273 | iexpr : expr |
274 | { $$ = invert(scalar($1)); } | |
275 | ; | |
276 | ||
277 | mexpr : expr | |
bbce6d69 | 278 | { $$ = $1; intro_my(); } |
279 | ; | |
280 | ||
281 | mnexpr : nexpr | |
282 | { $$ = $1; intro_my(); } | |
55497cff | 283 | ; |
284 | ||
285 | mtexpr : texpr | |
bbce6d69 | 286 | { $$ = $1; intro_my(); } |
55497cff | 287 | ; |
288 | ||
289 | miexpr : iexpr | |
bbce6d69 | 290 | { $$ = $1; intro_my(); } |
55497cff | 291 | ; |
292 | ||
8d063cd8 LW |
293 | label : /* empty */ |
294 | { $$ = Nullch; } | |
32c2e4fb | 295 | | LABEL |
8d063cd8 LW |
296 | ; |
297 | ||
8d063cd8 LW |
298 | decl : format |
299 | { $$ = 0; } | |
300 | | subrout | |
301 | { $$ = 0; } | |
09bef843 SB |
302 | | mysubrout |
303 | { $$ = 0; } | |
a687059c LW |
304 | | package |
305 | { $$ = 0; } | |
a0d0e21e | 306 | | use |
85e6fe83 | 307 | { $$ = 0; } |
8d063cd8 LW |
308 | ; |
309 | ||
44a8e56a | 310 | format : FORMAT startformsub formname block |
a0d0e21e | 311 | { newFORM($2, $3, $4); } |
44a8e56a | 312 | ; |
313 | ||
314 | formname: WORD { $$ = $1; } | |
315 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
316 | ; |
317 | ||
09bef843 SB |
318 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
319 | { newMYSUB($2, $3, $4, $5, $6); } | |
320 | ; | |
321 | ||
322 | subrout : SUB startsub subname proto subattrlist subbody | |
323 | { newATTRSUB($2, $3, $4, $5, $6); } | |
28757baa | 324 | ; |
325 | ||
fa83b5b6 | 326 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 327 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 328 | ; |
329 | ||
330 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 331 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 332 | ; |
333 | ||
44a8e56a | 334 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 335 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 336 | ; |
337 | ||
2d8e6c8d | 338 | subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a); |
e858de61 | 339 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
7d30b5c4 | 340 | || strEQ(name, "INIT") || strEQ(name, "CHECK")) |
1aff0e91 | 341 | CvSPECIAL_on(PL_compcv); |
28757baa | 342 | $$ = $1; } |
a0d0e21e LW |
343 | ; |
344 | ||
4633a7c4 LW |
345 | proto : /* NULL */ |
346 | { $$ = Nullop; } | |
347 | | THING | |
348 | ; | |
28757baa | 349 | |
09bef843 SB |
350 | subattrlist: /* NULL */ |
351 | { $$ = Nullop; } | |
352 | | COLONATTR THING | |
353 | { $$ = $2; } | |
354 | | COLONATTR | |
355 | { $$ = Nullop; } | |
356 | ; | |
357 | ||
358 | myattrlist: COLONATTR THING | |
359 | { $$ = $2; } | |
360 | | COLONATTR | |
361 | { $$ = Nullop; } | |
362 | ; | |
363 | ||
28757baa | 364 | subbody : block { $$ = $1; } |
3280af22 | 365 | | ';' { $$ = Nullop; PL_expect = XSTATE; } |
8d063cd8 LW |
366 | ; |
367 | ||
a687059c | 368 | package : PACKAGE WORD ';' |
79072805 | 369 | { package($2); } |
93a17b20 LW |
370 | | PACKAGE ';' |
371 | { package(Nullop); } | |
a687059c LW |
372 | ; |
373 | ||
28757baa | 374 | use : USE startsub |
1aff0e91 | 375 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 376 | WORD WORD listexpr ';' |
377 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
378 | ; |
379 | ||
a0d0e21e LW |
380 | expr : expr ANDOP expr |
381 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
382 | | expr OROP expr | |
383 | { $$ = newLOGOP($2, 0, $1, $3); } | |
fad39ff1 | 384 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
385 | ; |
386 | ||
387 | argexpr : argexpr ',' | |
388 | { $$ = $1; } | |
389 | | argexpr ',' term | |
79072805 | 390 | { $$ = append_elem(OP_LIST, $1, $3); } |
fad39ff1 | 391 | | term %prec PREC_LOW |
8d063cd8 LW |
392 | ; |
393 | ||
a0d0e21e | 394 | listop : LSTOP indirob argexpr |
79072805 | 395 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
396 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
397 | | FUNC '(' indirob expr ')' | |
79072805 | 398 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
399 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
400 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 401 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 402 | append_elem(OP_LIST, |
55497cff | 403 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 404 | newUNOP(OP_METHOD, 0, $3))); } |
b1524f17 SM |
405 | | term ARROW method |
406 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, | |
407 | append_elem(OP_LIST, scalar($1), | |
408 | newUNOP(OP_METHOD, 0, $3))); } | |
79072805 | 409 | | METHOD indirob listexpr |
4633a7c4 | 410 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 411 | append_elem(OP_LIST, |
4633a7c4 | 412 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
413 | newUNOP(OP_METHOD, 0, $1))); } |
414 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 415 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 416 | append_elem(OP_LIST, |
4633a7c4 | 417 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 418 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
419 | | LSTOP listexpr |
420 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 421 | | FUNC '(' listexprcom ')' |
79072805 | 422 | { $$ = convert($1, 0, $3); } |
28757baa | 423 | | LSTOPSUB startanonsub block |
09bef843 | 424 | { $3 = newANONATTRSUB($2, 0, Nullop, $3); } |
28757baa | 425 | listexpr %prec LSTOP |
4633a7c4 | 426 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 427 | append_elem(OP_LIST, |
428 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
429 | ; |
430 | ||
a0d0e21e LW |
431 | method : METHOD |
432 | | scalar | |
433 | ; | |
434 | ||
fad39ff1 SM |
435 | subscripted: star '{' expr ';' '}' |
436 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } | |
437 | | scalar '[' expr ']' | |
438 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
439 | | term ARROW '[' expr ']' | |
440 | { $$ = newBINOP(OP_AELEM, 0, | |
441 | ref(newAVREF($1),OP_RV2AV), | |
442 | scalar($4));} | |
443 | | subscripted '[' expr ']' | |
444 | { $$ = newBINOP(OP_AELEM, 0, | |
445 | ref(newAVREF($1),OP_RV2AV), | |
446 | scalar($3));} | |
447 | | scalar '{' expr ';' '}' | |
448 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
449 | PL_expect = XOPERATOR; } | |
450 | | term ARROW '{' expr ';' '}' | |
451 | { $$ = newBINOP(OP_HELEM, 0, | |
452 | ref(newHVREF($1),OP_RV2HV), | |
453 | jmaybe($4)); | |
454 | PL_expect = XOPERATOR; } | |
455 | | subscripted '{' expr ';' '}' | |
456 | { $$ = newBINOP(OP_HELEM, 0, | |
457 | ref(newHVREF($1),OP_RV2HV), | |
458 | jmaybe($3)); | |
459 | PL_expect = XOPERATOR; } | |
460 | | term ARROW '(' ')' | |
461 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
462 | newCVREF(0, scalar($1))); } | |
463 | | term ARROW '(' expr ')' | |
464 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
465 | append_elem(OP_LIST, $4, | |
466 | newCVREF(0, scalar($1)))); } | |
467 | ||
468 | | subscripted '(' expr ')' | |
469 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
470 | append_elem(OP_LIST, $3, | |
471 | newCVREF(0, scalar($1)))); } | |
472 | | subscripted '(' ')' | |
473 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
474 | newCVREF(0, scalar($1))); } | |
475 | ||
476 | ||
477 | ||
a0d0e21e LW |
478 | term : term ASSIGNOP term |
479 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
480 | | term POWOP term | |
79072805 | 481 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 482 | | term MULOP term |
79072805 LW |
483 | { if ($2 != OP_REPEAT) |
484 | scalar($1); | |
485 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 486 | | term ADDOP term |
79072805 | 487 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 488 | | term SHIFTOP term |
79072805 | 489 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 490 | | term RELOP term |
79072805 | 491 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 492 | | term EQOP term |
79072805 | 493 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 494 | | term BITANDOP term |
79072805 | 495 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 496 | | term BITOROP term |
79072805 | 497 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 498 | | term DOTDOT term |
79072805 | 499 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 500 | | term ANDAND term |
463ee0b2 | 501 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 502 | | term OROR term |
463ee0b2 | 503 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 504 | | term '?' term ':' term |
79072805 | 505 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 506 | | term MATCHOP term |
79072805 | 507 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 508 | |
a0d0e21e | 509 | | '-' term %prec UMINUS |
79072805 | 510 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
511 | | '+' term %prec UMINUS |
512 | { $$ = $2; } | |
8d063cd8 | 513 | | '!' term |
79072805 | 514 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 515 | | '~' term |
79072805 LW |
516 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
517 | | REFGEN term | |
a0d0e21e | 518 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
519 | | term POSTINC |
520 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 521 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
522 | | term POSTDEC |
523 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 524 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
525 | | PREINC term |
526 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 527 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
528 | | PREDEC term |
529 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 530 | mod(scalar($2), OP_PREDEC)); } |
09bef843 SB |
531 | | myattrterm %prec UNIOP |
532 | { $$ = $1; } | |
533 | | LOCAL term %prec UNIOP | |
93a17b20 | 534 | { $$ = localize($2,$1); } |
a0d0e21e | 535 | | '(' expr ')' |
79072805 | 536 | { $$ = sawparens($2); } |
8d063cd8 | 537 | | '(' ')' |
8990e307 | 538 | { $$ = sawparens(newNULLLIST()); } |
fad39ff1 | 539 | | '[' expr ']' |
79072805 | 540 | { $$ = newANONLIST($2); } |
fad39ff1 | 541 | | '[' ']' |
79072805 | 542 | { $$ = newANONLIST(Nullop); } |
a0d0e21e | 543 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
544 | { $$ = newANONHASH($2); } |
545 | | HASHBRACK ';' '}' %prec '(' | |
546 | { $$ = newANONHASH(Nullop); } | |
09bef843 SB |
547 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
548 | { $$ = newANONATTRSUB($2, $3, $4, $5); } | |
79072805 | 549 | | scalar %prec '(' |
8d063cd8 | 550 | { $$ = $1; } |
79072805 | 551 | | star %prec '(' |
8d063cd8 | 552 | { $$ = $1; } |
79072805 | 553 | | hsh %prec '(' |
8d063cd8 | 554 | { $$ = $1; } |
79072805 | 555 | | ary %prec '(' |
8d063cd8 | 556 | { $$ = $1; } |
79072805 LW |
557 | | arylen %prec '(' |
558 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
fad39ff1 SM |
559 | | subscripted |
560 | { $$ = $1; } | |
561 | | '(' expr ')' '[' expr ']' | |
79072805 | 562 | { $$ = newSLICEOP(0, $5, $2); } |
fad39ff1 | 563 | | '(' ')' '[' expr ']' |
79072805 | 564 | { $$ = newSLICEOP(0, $4, Nullop); } |
fad39ff1 | 565 | | ary '[' expr ']' |
79072805 LW |
566 | { $$ = prepend_elem(OP_ASLICE, |
567 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
568 | newLISTOP(OP_ASLICE, 0, |
569 | list($3), | |
a0d0e21e | 570 | ref($1, OP_ASLICE))); } |
fad39ff1 | 571 | | ary '{' expr ';' '}' |
79072805 LW |
572 | { $$ = prepend_elem(OP_HSLICE, |
573 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
574 | newLISTOP(OP_HSLICE, 0, |
575 | list($3), | |
a0d0e21e | 576 | ref(oopsHV($1), OP_HSLICE))); |
3280af22 | 577 | PL_expect = XOPERATOR; } |
79072805 LW |
578 | | THING %prec '(' |
579 | { $$ = $1; } | |
580 | | amper | |
c07a80fd | 581 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 582 | | amper '(' ')' |
a0d0e21e LW |
583 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
584 | | amper '(' expr ')' | |
585 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 586 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 587 | | NOAMP WORD listexpr |
a0d0e21e | 588 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 589 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 590 | | DO term %prec UNIOP |
78ca652e | 591 | { $$ = dofile($2); } |
79072805 LW |
592 | | DO block %prec '(' |
593 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 594 | | DO WORD '(' ')' |
c07a80fd | 595 | { $$ = newUNOP(OP_ENTERSUB, |
596 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 597 | prepend_elem(OP_LIST, |
c07a80fd | 598 | scalar(newCVREF( |
599 | (OPpENTERSUB_AMPER<<8), | |
600 | scalar($2) | |
601 | )),Nullop)); dep();} | |
a0d0e21e | 602 | | DO WORD '(' expr ')' |
c07a80fd | 603 | { $$ = newUNOP(OP_ENTERSUB, |
604 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 605 | append_elem(OP_LIST, |
a0d0e21e | 606 | $4, |
c07a80fd | 607 | scalar(newCVREF( |
608 | (OPpENTERSUB_AMPER<<8), | |
609 | scalar($2) | |
610 | )))); dep();} | |
79072805 | 611 | | DO scalar '(' ')' |
a0d0e21e | 612 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 613 | prepend_elem(OP_LIST, |
c07a80fd | 614 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
615 | | DO scalar '(' expr ')' |
616 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 617 | prepend_elem(OP_LIST, |
a0d0e21e | 618 | $4, |
c07a80fd | 619 | scalar(newCVREF(0,scalar($2))))); dep();} |
8d063cd8 | 620 | | LOOPEX |
85e6fe83 | 621 | { $$ = newOP($1, OPf_SPECIAL); |
3280af22 | 622 | PL_hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e | 623 | | LOOPEX term |
8990e307 | 624 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 625 | | NOTOP argexpr |
626 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 627 | | UNIOP |
79072805 | 628 | { $$ = newOP($1, 0); } |
f0fcb552 | 629 | | UNIOP block |
79072805 | 630 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 631 | | UNIOP term |
79072805 | 632 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
633 | | UNIOPSUB term |
634 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
635 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 636 | | FUNC0 |
79072805 | 637 | { $$ = newOP($1, 0); } |
ae986130 | 638 | | FUNC0 '(' ')' |
79072805 | 639 | { $$ = newOP($1, 0); } |
4633a7c4 | 640 | | FUNC0SUB |
28757baa | 641 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 642 | scalar($1)); } |
03a14243 | 643 | | FUNC1 '(' ')' |
79072805 | 644 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 645 | | FUNC1 '(' expr ')' |
79072805 | 646 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 647 | | PMFUNC '(' term ')' |
79072805 | 648 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 649 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
650 | { $$ = pmruntime($1, $3, $5); } |
651 | | WORD | |
378cc40b | 652 | | listop |
8d063cd8 LW |
653 | ; |
654 | ||
09bef843 SB |
655 | myattrterm: MY myterm myattrlist |
656 | { $$ = my_attrs($2,$3); } | |
657 | | MY myterm | |
658 | { $$ = localize($2,$1); } | |
659 | ; | |
660 | ||
661 | myterm : '(' expr ')' | |
662 | { $$ = sawparens($2); } | |
663 | | '(' ')' | |
664 | { $$ = sawparens(newNULLLIST()); } | |
665 | | scalar %prec '(' | |
666 | { $$ = $1; } | |
667 | | hsh %prec '(' | |
668 | { $$ = $1; } | |
669 | | ary %prec '(' | |
670 | { $$ = $1; } | |
671 | ; | |
672 | ||
fad39ff1 | 673 | listexpr: /* NULL */ %prec PREC_LOW |
8990e307 | 674 | { $$ = Nullop; } |
fad39ff1 | 675 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
676 | { $$ = $1; } |
677 | ; | |
678 | ||
679 | listexprcom: /* NULL */ | |
680 | { $$ = Nullop; } | |
79072805 LW |
681 | | expr |
682 | { $$ = $1; } | |
a0d0e21e LW |
683 | | expr ',' |
684 | { $$ = $1; } | |
79072805 LW |
685 | ; |
686 | ||
55497cff | 687 | my_scalar: scalar |
3280af22 | 688 | { PL_in_my = 0; $$ = my($1); } |
55497cff | 689 | ; |
690 | ||
79072805 | 691 | amper : '&' indirob |
c07a80fd | 692 | { $$ = newCVREF($1,$2); } |
a687059c LW |
693 | ; |
694 | ||
79072805 LW |
695 | scalar : '$' indirob |
696 | { $$ = newSVREF($2); } | |
a687059c LW |
697 | ; |
698 | ||
79072805 LW |
699 | ary : '@' indirob |
700 | { $$ = newAVREF($2); } | |
701 | ; | |
702 | ||
703 | hsh : '%' indirob | |
704 | { $$ = newHVREF($2); } | |
705 | ; | |
706 | ||
707 | arylen : DOLSHARP indirob | |
708 | { $$ = newAVREF($2); } | |
709 | ; | |
710 | ||
711 | star : '*' indirob | |
a0d0e21e | 712 | { $$ = newGVREF(0,$2); } |
79072805 LW |
713 | ; |
714 | ||
715 | indirob : WORD | |
716 | { $$ = scalar($1); } | |
fad39ff1 | 717 | | scalar %prec PREC_LOW |
463ee0b2 | 718 | { $$ = scalar($1); } |
79072805 | 719 | | block |
a0d0e21e | 720 | { $$ = scope($1); } |
79072805 | 721 | |
93a17b20 LW |
722 | | PRIVATEREF |
723 | { $$ = $1; } | |
8d063cd8 LW |
724 | ; |
725 | ||
726 | %% /* PROGRAM */ | |
09bef843 SB |
727 | |
728 | /* more stuff added to make perly_c.diff easier to apply */ | |
729 | ||
730 | #ifdef yyparse | |
731 | #undef yyparse | |
732 | #endif | |
733 | #define yyparse() Perl_yyparse(pTHX) | |
734 |