Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, 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 | |
8d063cd8 LW |
22 | %} |
23 | ||
24 | %start prog | |
25 | ||
9d116dd7 | 26 | %{ |
a1a0e61e TD |
27 | /* I sense a Big Blue pattern here... */ |
28 | #if !defined(OEMVS) && !defined(__OPEN_VM) && !defined(POSIX_BC) | |
9d116dd7 JH |
29 | %} |
30 | ||
8d063cd8 | 31 | %union { |
79072805 LW |
32 | I32 ival; |
33 | char *pval; | |
34 | OP *opval; | |
35 | GV *gvval; | |
8d063cd8 LW |
36 | } |
37 | ||
9d116dd7 | 38 | %{ |
a1a0e61e TD |
39 | #endif /* !OEMVS && !__OPEN_VM && !POSIX_BC */ |
40 | ||
41 | #ifdef USE_PURE_BISON | |
42 | #define YYLEX_PARAM (&yychar) | |
43 | #endif | |
9d116dd7 JH |
44 | %} |
45 | ||
fad39ff1 | 46 | %token <ival> '{' |
f0fcb552 | 47 | |
a0d0e21e | 48 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 | 49 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
79072805 | 50 | %token <pval> LABEL |
a0d0e21e | 51 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
79072805 LW |
52 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
53 | %token <ival> LOOPEX DOTDOT | |
36477c24 | 54 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
79072805 | 55 | %token <ival> RELOP EQOP MULOP ADDOP |
55497cff | 56 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
57 | %token LOCAL MY | |
79072805 | 58 | |
44a8e56a | 59 | %type <ival> prog decl local format startsub startanonsub startformsub |
28757baa | 60 | %type <ival> remember mremember '&' |
bbce6d69 | 61 | %type <opval> block mblock lineseq line loop cond else |
fad39ff1 | 62 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
bbce6d69 | 63 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
44a8e56a | 64 | %type <opval> listexpr listexprcom indirob listop method |
65 | %type <opval> formname subname proto subbody cont my_scalar | |
79072805 | 66 | %type <pval> label |
79072805 | 67 | |
fad39ff1 SM |
68 | %nonassoc PREC_LOW |
69 | %nonassoc LOOPEX | |
70 | ||
a0d0e21e | 71 | %left <ival> OROP |
463ee0b2 | 72 | %left ANDOP |
c07a80fd | 73 | %right NOTOP |
36477c24 | 74 | %nonassoc LSTOP LSTOPSUB |
8d063cd8 | 75 | %left ',' |
a0d0e21e | 76 | %right <ival> ASSIGNOP |
8d063cd8 LW |
77 | %right '?' ':' |
78 | %nonassoc DOTDOT | |
79 | %left OROR | |
80 | %left ANDAND | |
79072805 LW |
81 | %left <ival> BITOROP |
82 | %left <ival> BITANDOP | |
a687059c LW |
83 | %nonassoc EQOP |
84 | %nonassoc RELOP | |
36477c24 | 85 | %nonassoc UNIOP UNIOPSUB |
79072805 | 86 | %left <ival> SHIFTOP |
a687059c LW |
87 | %left ADDOP |
88 | %left MULOP | |
8990e307 | 89 | %left <ival> MATCHOP |
79072805 LW |
90 | %right '!' '~' UMINUS REFGEN |
91 | %right <ival> POWOP | |
92 | %nonassoc PREINC PREDEC POSTINC POSTDEC | |
8990e307 | 93 | %left ARROW |
fad39ff1 | 94 | %nonassoc <ival> ')' |
8d063cd8 | 95 | %left '(' |
fad39ff1 | 96 | %left '[' '{' |
8d063cd8 LW |
97 | |
98 | %% /* RULES */ | |
99 | ||
ae986130 LW |
100 | prog : /* NULL */ |
101 | { | |
102 | #if defined(YYDEBUG) && defined(DEBUGGING) | |
3280af22 | 103 | yydebug = (PL_debug & 1); |
ae986130 | 104 | #endif |
3280af22 | 105 | PL_expect = XSTATE; |
ae986130 LW |
106 | } |
107 | /*CONTINUED*/ lineseq | |
a0d0e21e | 108 | { newPROG($2); } |
8d063cd8 LW |
109 | ; |
110 | ||
a687059c | 111 | block : '{' remember lineseq '}' |
3280af22 NIS |
112 | { if (PL_copline > (line_t)$1) |
113 | PL_copline = $1; | |
36477c24 | 114 | $$ = block_end($2, $3); } |
a0d0e21e LW |
115 | ; |
116 | ||
55497cff | 117 | remember: /* NULL */ /* start a full lexical scope */ |
118 | { $$ = block_start(TRUE); } | |
119 | ; | |
120 | ||
bbce6d69 | 121 | mblock : '{' mremember lineseq '}' |
3280af22 NIS |
122 | { if (PL_copline > (line_t)$1) |
123 | PL_copline = $1; | |
36477c24 | 124 | $$ = block_end($2, $3); } |
55497cff | 125 | ; |
126 | ||
127 | mremember: /* NULL */ /* start a partial lexical scope */ | |
128 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
129 | ; |
130 | ||
131 | lineseq : /* NULL */ | |
79072805 LW |
132 | { $$ = Nullop; } |
133 | | lineseq decl | |
134 | { $$ = $1; } | |
8d063cd8 | 135 | | lineseq line |
463ee0b2 | 136 | { $$ = append_list(OP_LINESEQ, |
a0d0e21e | 137 | (LISTOP*)$1, (LISTOP*)$2); |
3280af22 NIS |
138 | PL_pad_reset_pending = TRUE; |
139 | if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; } | |
8d063cd8 LW |
140 | ; |
141 | ||
79072805 LW |
142 | line : label cond |
143 | { $$ = newSTATEOP(0, $1, $2); } | |
8d063cd8 LW |
144 | | loop /* loops add their own labels */ |
145 | | label ';' | |
146 | { if ($1 != Nullch) { | |
79072805 | 147 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 LW |
148 | } |
149 | else { | |
79072805 | 150 | $$ = Nullop; |
3280af22 | 151 | PL_copline = NOLINE; |
32c2e4fb | 152 | } |
3280af22 | 153 | PL_expect = XSTATE; } |
8d063cd8 | 154 | | label sideff ';' |
79072805 | 155 | { $$ = newSTATEOP(0, $1, $2); |
3280af22 | 156 | PL_expect = XSTATE; } |
8d063cd8 LW |
157 | ; |
158 | ||
a687059c | 159 | sideff : error |
79072805 | 160 | { $$ = Nullop; } |
a687059c | 161 | | expr |
79072805 | 162 | { $$ = $1; } |
a687059c | 163 | | expr IF expr |
79072805 | 164 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 165 | | expr UNLESS expr |
79072805 | 166 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 167 | | expr WHILE expr |
8990e307 | 168 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 169 | | expr UNTIL iexpr |
170 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
ecca16b0 CS |
171 | | expr FOR expr |
172 | { $$ = newFOROP(0, Nullch, $2, | |
173 | Nullop, $3, $1, Nullop); } | |
79072805 LW |
174 | ; |
175 | ||
176 | else : /* NULL */ | |
177 | { $$ = Nullop; } | |
55497cff | 178 | | ELSE mblock |
79072805 | 179 | { $$ = scope($2); } |
55497cff | 180 | | ELSIF '(' mexpr ')' mblock else |
3280af22 | 181 | { PL_copline = $1; |
2c15bef3 | 182 | $$ = newCONDOP(0, $3, scope($5), $6); |
3280af22 | 183 | PL_hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
184 | ; |
185 | ||
55497cff | 186 | cond : IF '(' remember mexpr ')' mblock else |
3280af22 | 187 | { PL_copline = $1; |
36477c24 | 188 | $$ = block_end($3, |
bbce6d69 | 189 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 190 | | UNLESS '(' remember miexpr ')' mblock else |
3280af22 | 191 | { PL_copline = $1; |
36477c24 | 192 | $$ = block_end($3, |
bbce6d69 | 193 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
194 | ; |
195 | ||
196 | cont : /* NULL */ | |
197 | { $$ = Nullop; } | |
198 | | CONTINUE block | |
199 | { $$ = scope($2); } | |
200 | ; | |
201 | ||
55497cff | 202 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
3280af22 | 203 | { PL_copline = $2; |
36477c24 | 204 | $$ = block_end($4, |
55497cff | 205 | newSTATEOP(0, $1, |
bbce6d69 | 206 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 207 | $2, $5, $7, $8))); } |
55497cff | 208 | | label UNTIL '(' remember miexpr ')' mblock cont |
3280af22 | 209 | { PL_copline = $2; |
36477c24 | 210 | $$ = block_end($4, |
55497cff | 211 | newSTATEOP(0, $1, |
bbce6d69 | 212 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 213 | $2, $5, $7, $8))); } |
bbce6d69 | 214 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 215 | { $$ = block_end($4, |
bbce6d69 | 216 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
217 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 218 | { $$ = block_end($5, |
bbce6d69 | 219 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
220 | $6, $8, $9)); } | |
221 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 222 | { $$ = block_end($4, |
55497cff | 223 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 224 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 225 | /* basically fake up an initialize-while lineseq */ |
fb73857a | 226 | { OP *forop = append_elem(OP_LINESEQ, |
227 | scalar($5), | |
228 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
229 | $2, scalar($7), | |
230 | $11, scalar($9))); | |
3280af22 | 231 | PL_copline = $2; |
fb73857a | 232 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } |
79072805 | 233 | | label block cont /* a block is a loop that happens once */ |
fb73857a | 234 | { $$ = newSTATEOP(0, $1, |
235 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
236 | NOLINE, Nullop, $2, $3)); } | |
8d063cd8 LW |
237 | ; |
238 | ||
239 | nexpr : /* NULL */ | |
79072805 | 240 | { $$ = Nullop; } |
8d063cd8 LW |
241 | | sideff |
242 | ; | |
243 | ||
244 | texpr : /* NULL means true */ | |
79072805 | 245 | { (void)scan_num("1"); $$ = yylval.opval; } |
8d063cd8 LW |
246 | | expr |
247 | ; | |
248 | ||
55497cff | 249 | iexpr : expr |
250 | { $$ = invert(scalar($1)); } | |
251 | ; | |
252 | ||
253 | mexpr : expr | |
bbce6d69 | 254 | { $$ = $1; intro_my(); } |
255 | ; | |
256 | ||
257 | mnexpr : nexpr | |
258 | { $$ = $1; intro_my(); } | |
55497cff | 259 | ; |
260 | ||
261 | mtexpr : texpr | |
bbce6d69 | 262 | { $$ = $1; intro_my(); } |
55497cff | 263 | ; |
264 | ||
265 | miexpr : iexpr | |
bbce6d69 | 266 | { $$ = $1; intro_my(); } |
55497cff | 267 | ; |
268 | ||
8d063cd8 LW |
269 | label : /* empty */ |
270 | { $$ = Nullch; } | |
32c2e4fb | 271 | | LABEL |
8d063cd8 LW |
272 | ; |
273 | ||
8d063cd8 LW |
274 | decl : format |
275 | { $$ = 0; } | |
276 | | subrout | |
277 | { $$ = 0; } | |
a687059c LW |
278 | | package |
279 | { $$ = 0; } | |
a0d0e21e | 280 | | use |
85e6fe83 | 281 | { $$ = 0; } |
8d063cd8 LW |
282 | ; |
283 | ||
44a8e56a | 284 | format : FORMAT startformsub formname block |
a0d0e21e | 285 | { newFORM($2, $3, $4); } |
44a8e56a | 286 | ; |
287 | ||
288 | formname: WORD { $$ = $1; } | |
289 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
290 | ; |
291 | ||
28757baa | 292 | subrout : SUB startsub subname proto subbody |
4633a7c4 | 293 | { newSUB($2, $3, $4, $5); } |
28757baa | 294 | ; |
295 | ||
fa83b5b6 | 296 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 297 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 298 | ; |
299 | ||
300 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 301 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 302 | ; |
303 | ||
44a8e56a | 304 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 305 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 306 | ; |
307 | ||
2d8e6c8d | 308 | subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a); |
e858de61 | 309 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
7d07dbc2 | 310 | || strEQ(name, "INIT")) |
1aff0e91 | 311 | CvSPECIAL_on(PL_compcv); |
28757baa | 312 | $$ = $1; } |
a0d0e21e LW |
313 | ; |
314 | ||
4633a7c4 LW |
315 | proto : /* NULL */ |
316 | { $$ = Nullop; } | |
317 | | THING | |
318 | ; | |
28757baa | 319 | |
320 | subbody : block { $$ = $1; } | |
3280af22 | 321 | | ';' { $$ = Nullop; PL_expect = XSTATE; } |
8d063cd8 LW |
322 | ; |
323 | ||
a687059c | 324 | package : PACKAGE WORD ';' |
79072805 | 325 | { package($2); } |
93a17b20 LW |
326 | | PACKAGE ';' |
327 | { package(Nullop); } | |
a687059c LW |
328 | ; |
329 | ||
28757baa | 330 | use : USE startsub |
1aff0e91 | 331 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 332 | WORD WORD listexpr ';' |
333 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
334 | ; |
335 | ||
a0d0e21e LW |
336 | expr : expr ANDOP expr |
337 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
338 | | expr OROP expr | |
339 | { $$ = newLOGOP($2, 0, $1, $3); } | |
fad39ff1 | 340 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
341 | ; |
342 | ||
343 | argexpr : argexpr ',' | |
344 | { $$ = $1; } | |
345 | | argexpr ',' term | |
79072805 | 346 | { $$ = append_elem(OP_LIST, $1, $3); } |
fad39ff1 | 347 | | term %prec PREC_LOW |
8d063cd8 LW |
348 | ; |
349 | ||
a0d0e21e | 350 | listop : LSTOP indirob argexpr |
79072805 | 351 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
352 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
353 | | FUNC '(' indirob expr ')' | |
79072805 | 354 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
355 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
356 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 357 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 358 | append_elem(OP_LIST, |
55497cff | 359 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 360 | newUNOP(OP_METHOD, 0, $3))); } |
b1524f17 SM |
361 | | term ARROW method |
362 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, | |
363 | append_elem(OP_LIST, scalar($1), | |
364 | newUNOP(OP_METHOD, 0, $3))); } | |
79072805 | 365 | | METHOD indirob listexpr |
4633a7c4 | 366 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 367 | append_elem(OP_LIST, |
4633a7c4 | 368 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
369 | newUNOP(OP_METHOD, 0, $1))); } |
370 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 371 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 372 | append_elem(OP_LIST, |
4633a7c4 | 373 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 374 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
375 | | LSTOP listexpr |
376 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 377 | | FUNC '(' listexprcom ')' |
79072805 | 378 | { $$ = convert($1, 0, $3); } |
28757baa | 379 | | LSTOPSUB startanonsub block |
380 | { $3 = newANONSUB($2, 0, $3); } | |
381 | listexpr %prec LSTOP | |
4633a7c4 | 382 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 383 | append_elem(OP_LIST, |
384 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
385 | ; |
386 | ||
a0d0e21e LW |
387 | method : METHOD |
388 | | scalar | |
389 | ; | |
390 | ||
fad39ff1 SM |
391 | subscripted: star '{' expr ';' '}' |
392 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } | |
393 | | scalar '[' expr ']' | |
394 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
395 | | term ARROW '[' expr ']' | |
396 | { $$ = newBINOP(OP_AELEM, 0, | |
397 | ref(newAVREF($1),OP_RV2AV), | |
398 | scalar($4));} | |
399 | | subscripted '[' expr ']' | |
400 | { $$ = newBINOP(OP_AELEM, 0, | |
401 | ref(newAVREF($1),OP_RV2AV), | |
402 | scalar($3));} | |
403 | | scalar '{' expr ';' '}' | |
404 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
405 | PL_expect = XOPERATOR; } | |
406 | | term ARROW '{' expr ';' '}' | |
407 | { $$ = newBINOP(OP_HELEM, 0, | |
408 | ref(newHVREF($1),OP_RV2HV), | |
409 | jmaybe($4)); | |
410 | PL_expect = XOPERATOR; } | |
411 | | subscripted '{' expr ';' '}' | |
412 | { $$ = newBINOP(OP_HELEM, 0, | |
413 | ref(newHVREF($1),OP_RV2HV), | |
414 | jmaybe($3)); | |
415 | PL_expect = XOPERATOR; } | |
416 | | term ARROW '(' ')' | |
417 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
418 | newCVREF(0, scalar($1))); } | |
419 | | term ARROW '(' expr ')' | |
420 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
421 | append_elem(OP_LIST, $4, | |
422 | newCVREF(0, scalar($1)))); } | |
423 | ||
424 | | subscripted '(' expr ')' | |
425 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
426 | append_elem(OP_LIST, $3, | |
427 | newCVREF(0, scalar($1)))); } | |
428 | | subscripted '(' ')' | |
429 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
430 | newCVREF(0, scalar($1))); } | |
431 | ||
432 | ||
433 | ||
a0d0e21e LW |
434 | term : term ASSIGNOP term |
435 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
436 | | term POWOP term | |
79072805 | 437 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 438 | | term MULOP term |
79072805 LW |
439 | { if ($2 != OP_REPEAT) |
440 | scalar($1); | |
441 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 442 | | term ADDOP term |
79072805 | 443 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 444 | | term SHIFTOP term |
79072805 | 445 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 446 | | term RELOP term |
79072805 | 447 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 448 | | term EQOP term |
79072805 | 449 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 450 | | term BITANDOP term |
79072805 | 451 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 452 | | term BITOROP term |
79072805 | 453 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 454 | | term DOTDOT term |
79072805 | 455 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 456 | | term ANDAND term |
463ee0b2 | 457 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 458 | | term OROR term |
463ee0b2 | 459 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 460 | | term '?' term ':' term |
79072805 | 461 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 462 | | term MATCHOP term |
79072805 | 463 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 464 | |
a0d0e21e | 465 | | '-' term %prec UMINUS |
79072805 | 466 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
467 | | '+' term %prec UMINUS |
468 | { $$ = $2; } | |
8d063cd8 | 469 | | '!' term |
79072805 | 470 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 471 | | '~' term |
79072805 LW |
472 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
473 | | REFGEN term | |
a0d0e21e | 474 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
475 | | term POSTINC |
476 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 477 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
478 | | term POSTDEC |
479 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 480 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
481 | | PREINC term |
482 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 483 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
484 | | PREDEC term |
485 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 486 | mod(scalar($2), OP_PREDEC)); } |
55497cff | 487 | | local term %prec UNIOP |
93a17b20 | 488 | { $$ = localize($2,$1); } |
a0d0e21e | 489 | | '(' expr ')' |
79072805 | 490 | { $$ = sawparens($2); } |
8d063cd8 | 491 | | '(' ')' |
8990e307 | 492 | { $$ = sawparens(newNULLLIST()); } |
fad39ff1 | 493 | | '[' expr ']' |
79072805 | 494 | { $$ = newANONLIST($2); } |
fad39ff1 | 495 | | '[' ']' |
79072805 | 496 | { $$ = newANONLIST(Nullop); } |
a0d0e21e | 497 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
498 | { $$ = newANONHASH($2); } |
499 | | HASHBRACK ';' '}' %prec '(' | |
500 | { $$ = newANONHASH(Nullop); } | |
28757baa | 501 | | ANONSUB startanonsub proto block %prec '(' |
4633a7c4 | 502 | { $$ = newANONSUB($2, $3, $4); } |
79072805 | 503 | | scalar %prec '(' |
8d063cd8 | 504 | { $$ = $1; } |
79072805 | 505 | | star %prec '(' |
8d063cd8 | 506 | { $$ = $1; } |
79072805 | 507 | | hsh %prec '(' |
8d063cd8 | 508 | { $$ = $1; } |
79072805 | 509 | | ary %prec '(' |
8d063cd8 | 510 | { $$ = $1; } |
79072805 LW |
511 | | arylen %prec '(' |
512 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
fad39ff1 SM |
513 | | subscripted |
514 | { $$ = $1; } | |
515 | | '(' expr ')' '[' expr ']' | |
79072805 | 516 | { $$ = newSLICEOP(0, $5, $2); } |
fad39ff1 | 517 | | '(' ')' '[' expr ']' |
79072805 | 518 | { $$ = newSLICEOP(0, $4, Nullop); } |
fad39ff1 | 519 | | ary '[' expr ']' |
79072805 LW |
520 | { $$ = prepend_elem(OP_ASLICE, |
521 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
522 | newLISTOP(OP_ASLICE, 0, |
523 | list($3), | |
a0d0e21e | 524 | ref($1, OP_ASLICE))); } |
fad39ff1 | 525 | | ary '{' expr ';' '}' |
79072805 LW |
526 | { $$ = prepend_elem(OP_HSLICE, |
527 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
528 | newLISTOP(OP_HSLICE, 0, |
529 | list($3), | |
a0d0e21e | 530 | ref(oopsHV($1), OP_HSLICE))); |
3280af22 | 531 | PL_expect = XOPERATOR; } |
79072805 LW |
532 | | THING %prec '(' |
533 | { $$ = $1; } | |
534 | | amper | |
c07a80fd | 535 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 536 | | amper '(' ')' |
a0d0e21e LW |
537 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
538 | | amper '(' expr ')' | |
539 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 540 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 541 | | NOAMP WORD listexpr |
a0d0e21e | 542 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 543 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 544 | | DO term %prec UNIOP |
78ca652e | 545 | { $$ = dofile($2); } |
79072805 LW |
546 | | DO block %prec '(' |
547 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 548 | | DO WORD '(' ')' |
c07a80fd | 549 | { $$ = newUNOP(OP_ENTERSUB, |
550 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 551 | prepend_elem(OP_LIST, |
c07a80fd | 552 | scalar(newCVREF( |
553 | (OPpENTERSUB_AMPER<<8), | |
554 | scalar($2) | |
555 | )),Nullop)); dep();} | |
a0d0e21e | 556 | | DO WORD '(' expr ')' |
c07a80fd | 557 | { $$ = newUNOP(OP_ENTERSUB, |
558 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 559 | append_elem(OP_LIST, |
a0d0e21e | 560 | $4, |
c07a80fd | 561 | scalar(newCVREF( |
562 | (OPpENTERSUB_AMPER<<8), | |
563 | scalar($2) | |
564 | )))); dep();} | |
79072805 | 565 | | DO scalar '(' ')' |
a0d0e21e | 566 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 567 | prepend_elem(OP_LIST, |
c07a80fd | 568 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
569 | | DO scalar '(' expr ')' |
570 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 571 | prepend_elem(OP_LIST, |
a0d0e21e | 572 | $4, |
c07a80fd | 573 | scalar(newCVREF(0,scalar($2))))); dep();} |
8d063cd8 | 574 | | LOOPEX |
85e6fe83 | 575 | { $$ = newOP($1, OPf_SPECIAL); |
3280af22 | 576 | PL_hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e | 577 | | LOOPEX term |
8990e307 | 578 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 579 | | NOTOP argexpr |
580 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 581 | | UNIOP |
79072805 | 582 | { $$ = newOP($1, 0); } |
f0fcb552 | 583 | | UNIOP block |
79072805 | 584 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 585 | | UNIOP term |
79072805 | 586 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
587 | | UNIOPSUB term |
588 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
589 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 590 | | FUNC0 |
79072805 | 591 | { $$ = newOP($1, 0); } |
ae986130 | 592 | | FUNC0 '(' ')' |
79072805 | 593 | { $$ = newOP($1, 0); } |
4633a7c4 | 594 | | FUNC0SUB |
28757baa | 595 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 596 | scalar($1)); } |
03a14243 | 597 | | FUNC1 '(' ')' |
79072805 | 598 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 599 | | FUNC1 '(' expr ')' |
79072805 | 600 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 601 | | PMFUNC '(' term ')' |
79072805 | 602 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 603 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
604 | { $$ = pmruntime($1, $3, $5); } |
605 | | WORD | |
378cc40b | 606 | | listop |
8d063cd8 LW |
607 | ; |
608 | ||
fad39ff1 | 609 | listexpr: /* NULL */ %prec PREC_LOW |
8990e307 | 610 | { $$ = Nullop; } |
fad39ff1 | 611 | | argexpr %prec PREC_LOW |
a0d0e21e LW |
612 | { $$ = $1; } |
613 | ; | |
614 | ||
615 | listexprcom: /* NULL */ | |
616 | { $$ = Nullop; } | |
79072805 LW |
617 | | expr |
618 | { $$ = $1; } | |
a0d0e21e LW |
619 | | expr ',' |
620 | { $$ = $1; } | |
79072805 LW |
621 | ; |
622 | ||
55497cff | 623 | local : LOCAL { $$ = 0; } |
624 | | MY { $$ = 1; } | |
625 | ; | |
626 | ||
627 | my_scalar: scalar | |
3280af22 | 628 | { PL_in_my = 0; $$ = my($1); } |
55497cff | 629 | ; |
630 | ||
79072805 | 631 | amper : '&' indirob |
c07a80fd | 632 | { $$ = newCVREF($1,$2); } |
a687059c LW |
633 | ; |
634 | ||
79072805 LW |
635 | scalar : '$' indirob |
636 | { $$ = newSVREF($2); } | |
a687059c LW |
637 | ; |
638 | ||
79072805 LW |
639 | ary : '@' indirob |
640 | { $$ = newAVREF($2); } | |
641 | ; | |
642 | ||
643 | hsh : '%' indirob | |
644 | { $$ = newHVREF($2); } | |
645 | ; | |
646 | ||
647 | arylen : DOLSHARP indirob | |
648 | { $$ = newAVREF($2); } | |
649 | ; | |
650 | ||
651 | star : '*' indirob | |
a0d0e21e | 652 | { $$ = newGVREF(0,$2); } |
79072805 LW |
653 | ; |
654 | ||
655 | indirob : WORD | |
656 | { $$ = scalar($1); } | |
fad39ff1 | 657 | | scalar %prec PREC_LOW |
463ee0b2 | 658 | { $$ = scalar($1); } |
79072805 | 659 | | block |
a0d0e21e | 660 | { $$ = scope($1); } |
79072805 | 661 | |
93a17b20 LW |
662 | | PRIVATEREF |
663 | { $$ = $1; } | |
8d063cd8 LW |
664 | ; |
665 | ||
666 | %% /* PROGRAM */ |