Commit | Line | Data |
---|---|---|
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" |
8d063cd8 | 17 | #include "perl.h" |
378cc40b | 18 | |
a0d0e21e | 19 | static void |
8ac85365 | 20 | dep(void) |
a0d0e21e LW |
21 | { |
22 | deprecate("\"do\" to call subroutines"); | |
23 | } | |
f0fcb552 | 24 | |
8d063cd8 LW |
25 | %} |
26 | ||
27 | %start prog | |
28 | ||
9d116dd7 | 29 | %{ |
a1a0e61e TD |
30 | /* I sense a Big Blue pattern here... */ |
31 | #if !defined(OEMVS) && !defined(__OPEN_VM) && !defined(POSIX_BC) | |
9d116dd7 JH |
32 | %} |
33 | ||
8d063cd8 | 34 | %union { |
79072805 LW |
35 | I32 ival; |
36 | char *pval; | |
37 | OP *opval; | |
38 | GV *gvval; | |
8d063cd8 LW |
39 | } |
40 | ||
9d116dd7 | 41 | %{ |
a1a0e61e TD |
42 | #endif /* !OEMVS && !__OPEN_VM && !POSIX_BC */ |
43 | ||
44 | #ifdef USE_PURE_BISON | |
45 | #define YYLEX_PARAM (&yychar) | |
46 | #endif | |
9d116dd7 JH |
47 | %} |
48 | ||
f0fcb552 LW |
49 | %token <ival> '{' ')' |
50 | ||
a0d0e21e | 51 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 | 52 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
79072805 | 53 | %token <pval> LABEL |
a0d0e21e | 54 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
79072805 LW |
55 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
56 | %token <ival> LOOPEX DOTDOT | |
36477c24 | 57 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
79072805 | 58 | %token <ival> RELOP EQOP MULOP ADDOP |
55497cff | 59 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
60 | %token LOCAL MY | |
79072805 | 61 | |
44a8e56a | 62 | %type <ival> prog decl local format startsub startanonsub startformsub |
28757baa | 63 | %type <ival> remember mremember '&' |
bbce6d69 | 64 | %type <opval> block mblock lineseq line loop cond else |
a0d0e21e | 65 | %type <opval> expr term scalar ary hsh arylen star amper sideff |
bbce6d69 | 66 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
44a8e56a | 67 | %type <opval> listexpr listexprcom indirob listop method |
68 | %type <opval> formname subname proto subbody cont my_scalar | |
79072805 | 69 | %type <pval> label |
79072805 | 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 |
8d063cd8 LW |
94 | %left '(' |
95 | ||
96 | %% /* RULES */ | |
97 | ||
ae986130 LW |
98 | prog : /* NULL */ |
99 | { | |
100 | #if defined(YYDEBUG) && defined(DEBUGGING) | |
3280af22 | 101 | yydebug = (PL_debug & 1); |
ae986130 | 102 | #endif |
3280af22 | 103 | PL_expect = XSTATE; |
ae986130 LW |
104 | } |
105 | /*CONTINUED*/ lineseq | |
a0d0e21e | 106 | { newPROG($2); } |
8d063cd8 LW |
107 | ; |
108 | ||
a687059c | 109 | block : '{' remember lineseq '}' |
3280af22 NIS |
110 | { if (PL_copline > (line_t)$1) |
111 | PL_copline = $1; | |
36477c24 | 112 | $$ = block_end($2, $3); } |
a0d0e21e LW |
113 | ; |
114 | ||
55497cff | 115 | remember: /* NULL */ /* start a full lexical scope */ |
116 | { $$ = block_start(TRUE); } | |
117 | ; | |
118 | ||
bbce6d69 | 119 | mblock : '{' mremember lineseq '}' |
3280af22 NIS |
120 | { if (PL_copline > (line_t)$1) |
121 | PL_copline = $1; | |
36477c24 | 122 | $$ = block_end($2, $3); } |
55497cff | 123 | ; |
124 | ||
125 | mremember: /* NULL */ /* start a partial lexical scope */ | |
126 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
127 | ; |
128 | ||
129 | lineseq : /* NULL */ | |
79072805 LW |
130 | { $$ = Nullop; } |
131 | | lineseq decl | |
132 | { $$ = $1; } | |
8d063cd8 | 133 | | lineseq line |
463ee0b2 | 134 | { $$ = append_list(OP_LINESEQ, |
a0d0e21e | 135 | (LISTOP*)$1, (LISTOP*)$2); |
3280af22 NIS |
136 | PL_pad_reset_pending = TRUE; |
137 | if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; } | |
8d063cd8 LW |
138 | ; |
139 | ||
79072805 LW |
140 | line : label cond |
141 | { $$ = newSTATEOP(0, $1, $2); } | |
8d063cd8 LW |
142 | | loop /* loops add their own labels */ |
143 | | label ';' | |
144 | { if ($1 != Nullch) { | |
79072805 | 145 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 LW |
146 | } |
147 | else { | |
79072805 | 148 | $$ = Nullop; |
3280af22 | 149 | PL_copline = NOLINE; |
32c2e4fb | 150 | } |
3280af22 | 151 | PL_expect = XSTATE; } |
8d063cd8 | 152 | | label sideff ';' |
79072805 | 153 | { $$ = newSTATEOP(0, $1, $2); |
3280af22 | 154 | PL_expect = XSTATE; } |
8d063cd8 LW |
155 | ; |
156 | ||
a687059c | 157 | sideff : error |
79072805 | 158 | { $$ = Nullop; } |
a687059c | 159 | | expr |
79072805 | 160 | { $$ = $1; } |
a687059c | 161 | | expr IF expr |
79072805 | 162 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 163 | | expr UNLESS expr |
79072805 | 164 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 165 | | expr WHILE expr |
8990e307 | 166 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 167 | | expr UNTIL iexpr |
168 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
ecca16b0 CS |
169 | | expr FOR expr |
170 | { $$ = newFOROP(0, Nullch, $2, | |
171 | Nullop, $3, $1, Nullop); } | |
79072805 LW |
172 | ; |
173 | ||
174 | else : /* NULL */ | |
175 | { $$ = Nullop; } | |
55497cff | 176 | | ELSE mblock |
79072805 | 177 | { $$ = scope($2); } |
55497cff | 178 | | ELSIF '(' mexpr ')' mblock else |
3280af22 | 179 | { PL_copline = $1; |
bbce6d69 | 180 | $$ = newSTATEOP(0, Nullch, |
181 | newCONDOP(0, $3, scope($5), $6)); | |
3280af22 | 182 | PL_hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
183 | ; |
184 | ||
55497cff | 185 | cond : IF '(' remember mexpr ')' mblock else |
3280af22 | 186 | { PL_copline = $1; |
36477c24 | 187 | $$ = block_end($3, |
bbce6d69 | 188 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 189 | | UNLESS '(' remember miexpr ')' mblock else |
3280af22 | 190 | { PL_copline = $1; |
36477c24 | 191 | $$ = block_end($3, |
bbce6d69 | 192 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
193 | ; |
194 | ||
195 | cont : /* NULL */ | |
196 | { $$ = Nullop; } | |
197 | | CONTINUE block | |
198 | { $$ = scope($2); } | |
199 | ; | |
200 | ||
55497cff | 201 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
3280af22 | 202 | { PL_copline = $2; |
36477c24 | 203 | $$ = block_end($4, |
55497cff | 204 | newSTATEOP(0, $1, |
bbce6d69 | 205 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 206 | $2, $5, $7, $8))); } |
55497cff | 207 | | label UNTIL '(' remember miexpr ')' mblock cont |
3280af22 | 208 | { PL_copline = $2; |
36477c24 | 209 | $$ = block_end($4, |
55497cff | 210 | newSTATEOP(0, $1, |
bbce6d69 | 211 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 212 | $2, $5, $7, $8))); } |
bbce6d69 | 213 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 214 | { $$ = block_end($4, |
bbce6d69 | 215 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
216 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 217 | { $$ = block_end($5, |
bbce6d69 | 218 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
219 | $6, $8, $9)); } | |
220 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 221 | { $$ = block_end($4, |
55497cff | 222 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 223 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 224 | /* basically fake up an initialize-while lineseq */ |
fb73857a | 225 | { OP *forop = append_elem(OP_LINESEQ, |
226 | scalar($5), | |
227 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
228 | $2, scalar($7), | |
229 | $11, scalar($9))); | |
3280af22 | 230 | PL_copline = $2; |
fb73857a | 231 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } |
79072805 | 232 | | label block cont /* a block is a loop that happens once */ |
fb73857a | 233 | { $$ = newSTATEOP(0, $1, |
234 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
235 | NOLINE, Nullop, $2, $3)); } | |
8d063cd8 LW |
236 | ; |
237 | ||
238 | nexpr : /* NULL */ | |
79072805 | 239 | { $$ = Nullop; } |
8d063cd8 LW |
240 | | sideff |
241 | ; | |
242 | ||
243 | texpr : /* NULL means true */ | |
79072805 | 244 | { (void)scan_num("1"); $$ = yylval.opval; } |
8d063cd8 LW |
245 | | expr |
246 | ; | |
247 | ||
55497cff | 248 | iexpr : expr |
249 | { $$ = invert(scalar($1)); } | |
250 | ; | |
251 | ||
252 | mexpr : expr | |
bbce6d69 | 253 | { $$ = $1; intro_my(); } |
254 | ; | |
255 | ||
256 | mnexpr : nexpr | |
257 | { $$ = $1; intro_my(); } | |
55497cff | 258 | ; |
259 | ||
260 | mtexpr : texpr | |
bbce6d69 | 261 | { $$ = $1; intro_my(); } |
55497cff | 262 | ; |
263 | ||
264 | miexpr : iexpr | |
bbce6d69 | 265 | { $$ = $1; intro_my(); } |
55497cff | 266 | ; |
267 | ||
8d063cd8 LW |
268 | label : /* empty */ |
269 | { $$ = Nullch; } | |
32c2e4fb | 270 | | LABEL |
8d063cd8 LW |
271 | ; |
272 | ||
8d063cd8 LW |
273 | decl : format |
274 | { $$ = 0; } | |
275 | | subrout | |
276 | { $$ = 0; } | |
a687059c LW |
277 | | package |
278 | { $$ = 0; } | |
a0d0e21e | 279 | | use |
85e6fe83 | 280 | { $$ = 0; } |
8d063cd8 LW |
281 | ; |
282 | ||
44a8e56a | 283 | format : FORMAT startformsub formname block |
a0d0e21e | 284 | { newFORM($2, $3, $4); } |
44a8e56a | 285 | ; |
286 | ||
287 | formname: WORD { $$ = $1; } | |
288 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
289 | ; |
290 | ||
28757baa | 291 | subrout : SUB startsub subname proto subbody |
4633a7c4 | 292 | { newSUB($2, $3, $4, $5); } |
28757baa | 293 | ; |
294 | ||
fa83b5b6 | 295 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 296 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 297 | ; |
298 | ||
299 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 300 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 301 | ; |
302 | ||
44a8e56a | 303 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 304 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 305 | ; |
306 | ||
2d8e6c8d | 307 | subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a); |
e858de61 | 308 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
7d07dbc2 | 309 | || strEQ(name, "INIT")) |
1aff0e91 | 310 | CvSPECIAL_on(PL_compcv); |
28757baa | 311 | $$ = $1; } |
a0d0e21e LW |
312 | ; |
313 | ||
4633a7c4 LW |
314 | proto : /* NULL */ |
315 | { $$ = Nullop; } | |
316 | | THING | |
317 | ; | |
28757baa | 318 | |
319 | subbody : block { $$ = $1; } | |
3280af22 | 320 | | ';' { $$ = Nullop; PL_expect = XSTATE; } |
8d063cd8 LW |
321 | ; |
322 | ||
a687059c | 323 | package : PACKAGE WORD ';' |
79072805 | 324 | { package($2); } |
93a17b20 LW |
325 | | PACKAGE ';' |
326 | { package(Nullop); } | |
a687059c LW |
327 | ; |
328 | ||
28757baa | 329 | use : USE startsub |
1aff0e91 | 330 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 331 | WORD WORD listexpr ';' |
332 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
333 | ; |
334 | ||
a0d0e21e LW |
335 | expr : expr ANDOP expr |
336 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
337 | | expr OROP expr | |
338 | { $$ = newLOGOP($2, 0, $1, $3); } | |
a0d0e21e LW |
339 | | argexpr |
340 | ; | |
341 | ||
342 | argexpr : argexpr ',' | |
343 | { $$ = $1; } | |
344 | | argexpr ',' term | |
79072805 | 345 | { $$ = append_elem(OP_LIST, $1, $3); } |
a0d0e21e | 346 | | term |
8d063cd8 LW |
347 | ; |
348 | ||
a0d0e21e | 349 | listop : LSTOP indirob argexpr |
79072805 | 350 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
351 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
352 | | FUNC '(' indirob expr ')' | |
79072805 | 353 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
354 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
355 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 356 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 357 | append_elem(OP_LIST, |
55497cff | 358 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 359 | newUNOP(OP_METHOD, 0, $3))); } |
b1524f17 SM |
360 | | term ARROW method |
361 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, | |
362 | append_elem(OP_LIST, scalar($1), | |
363 | newUNOP(OP_METHOD, 0, $3))); } | |
79072805 | 364 | | METHOD indirob listexpr |
4633a7c4 | 365 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 366 | append_elem(OP_LIST, |
4633a7c4 | 367 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
368 | newUNOP(OP_METHOD, 0, $1))); } |
369 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 370 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 371 | append_elem(OP_LIST, |
4633a7c4 | 372 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 373 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
374 | | LSTOP listexpr |
375 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 376 | | FUNC '(' listexprcom ')' |
79072805 | 377 | { $$ = convert($1, 0, $3); } |
28757baa | 378 | | LSTOPSUB startanonsub block |
379 | { $3 = newANONSUB($2, 0, $3); } | |
380 | listexpr %prec LSTOP | |
4633a7c4 | 381 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 382 | append_elem(OP_LIST, |
383 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
384 | ; |
385 | ||
a0d0e21e LW |
386 | method : METHOD |
387 | | scalar | |
388 | ; | |
389 | ||
390 | term : term ASSIGNOP term | |
391 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
392 | | term POWOP term | |
79072805 | 393 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 394 | | term MULOP term |
79072805 LW |
395 | { if ($2 != OP_REPEAT) |
396 | scalar($1); | |
397 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 398 | | term ADDOP term |
79072805 | 399 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 400 | | term SHIFTOP term |
79072805 | 401 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 402 | | term RELOP term |
79072805 | 403 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 404 | | term EQOP term |
79072805 | 405 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 406 | | term BITANDOP term |
79072805 | 407 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 408 | | term BITOROP term |
79072805 | 409 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 410 | | term DOTDOT term |
79072805 | 411 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 412 | | term ANDAND term |
463ee0b2 | 413 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 414 | | term OROR term |
463ee0b2 | 415 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 416 | | term '?' term ':' term |
79072805 | 417 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 418 | | term MATCHOP term |
79072805 | 419 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 420 | |
a0d0e21e | 421 | | '-' term %prec UMINUS |
79072805 | 422 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
423 | | '+' term %prec UMINUS |
424 | { $$ = $2; } | |
8d063cd8 | 425 | | '!' term |
79072805 | 426 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 427 | | '~' term |
79072805 LW |
428 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
429 | | REFGEN term | |
a0d0e21e | 430 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
431 | | term POSTINC |
432 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 433 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
434 | | term POSTDEC |
435 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 436 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
437 | | PREINC term |
438 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 439 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
440 | | PREDEC term |
441 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 442 | mod(scalar($2), OP_PREDEC)); } |
55497cff | 443 | | local term %prec UNIOP |
93a17b20 | 444 | { $$ = localize($2,$1); } |
a0d0e21e | 445 | | '(' expr ')' |
79072805 | 446 | { $$ = sawparens($2); } |
8d063cd8 | 447 | | '(' ')' |
8990e307 | 448 | { $$ = sawparens(newNULLLIST()); } |
a0d0e21e | 449 | | '[' expr ']' %prec '(' |
79072805 LW |
450 | { $$ = newANONLIST($2); } |
451 | | '[' ']' %prec '(' | |
452 | { $$ = newANONLIST(Nullop); } | |
a0d0e21e | 453 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
454 | { $$ = newANONHASH($2); } |
455 | | HASHBRACK ';' '}' %prec '(' | |
456 | { $$ = newANONHASH(Nullop); } | |
28757baa | 457 | | ANONSUB startanonsub proto block %prec '(' |
4633a7c4 | 458 | { $$ = newANONSUB($2, $3, $4); } |
79072805 | 459 | | scalar %prec '(' |
8d063cd8 | 460 | { $$ = $1; } |
c07a80fd | 461 | | star '{' expr ';' '}' |
640b9ef6 | 462 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
79072805 | 463 | | star %prec '(' |
8d063cd8 | 464 | { $$ = $1; } |
79072805 LW |
465 | | scalar '[' expr ']' %prec '(' |
466 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
467 | | term ARROW '[' expr ']' %prec '(' | |
468 | { $$ = newBINOP(OP_AELEM, 0, | |
8990e307 | 469 | ref(newAVREF($1),OP_RV2AV), |
79072805 | 470 | scalar($4));} |
463ee0b2 | 471 | | term '[' expr ']' %prec '(' |
a0d0e21e | 472 | { assertref($1); $$ = newBINOP(OP_AELEM, 0, |
8990e307 | 473 | ref(newAVREF($1),OP_RV2AV), |
463ee0b2 | 474 | scalar($3));} |
79072805 | 475 | | hsh %prec '(' |
8d063cd8 | 476 | { $$ = $1; } |
79072805 | 477 | | ary %prec '(' |
8d063cd8 | 478 | { $$ = $1; } |
79072805 LW |
479 | | arylen %prec '(' |
480 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
481 | | scalar '{' expr ';' '}' %prec '(' | |
482 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
3280af22 | 483 | PL_expect = XOPERATOR; } |
79072805 LW |
484 | | term ARROW '{' expr ';' '}' %prec '(' |
485 | { $$ = newBINOP(OP_HELEM, 0, | |
8990e307 | 486 | ref(newHVREF($1),OP_RV2HV), |
79072805 | 487 | jmaybe($4)); |
3280af22 | 488 | PL_expect = XOPERATOR; } |
463ee0b2 | 489 | | term '{' expr ';' '}' %prec '(' |
a0d0e21e | 490 | { assertref($1); $$ = newBINOP(OP_HELEM, 0, |
8990e307 | 491 | ref(newHVREF($1),OP_RV2HV), |
463ee0b2 | 492 | jmaybe($3)); |
3280af22 | 493 | PL_expect = XOPERATOR; } |
a0d0e21e | 494 | | '(' expr ')' '[' expr ']' %prec '(' |
79072805 LW |
495 | { $$ = newSLICEOP(0, $5, $2); } |
496 | | '(' ')' '[' expr ']' %prec '(' | |
497 | { $$ = newSLICEOP(0, $4, Nullop); } | |
498 | | ary '[' expr ']' %prec '(' | |
499 | { $$ = prepend_elem(OP_ASLICE, | |
500 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
501 | newLISTOP(OP_ASLICE, 0, |
502 | list($3), | |
a0d0e21e | 503 | ref($1, OP_ASLICE))); } |
79072805 LW |
504 | | ary '{' expr ';' '}' %prec '(' |
505 | { $$ = prepend_elem(OP_HSLICE, | |
506 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
507 | newLISTOP(OP_HSLICE, 0, |
508 | list($3), | |
a0d0e21e | 509 | ref(oopsHV($1), OP_HSLICE))); |
3280af22 | 510 | PL_expect = XOPERATOR; } |
79072805 LW |
511 | | THING %prec '(' |
512 | { $$ = $1; } | |
513 | | amper | |
c07a80fd | 514 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 515 | | amper '(' ')' |
a0d0e21e LW |
516 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
517 | | amper '(' expr ')' | |
518 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 519 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 520 | | NOAMP WORD listexpr |
a0d0e21e | 521 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 522 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 523 | | DO term %prec UNIOP |
78ca652e | 524 | { $$ = dofile($2); } |
79072805 LW |
525 | | DO block %prec '(' |
526 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 527 | | DO WORD '(' ')' |
c07a80fd | 528 | { $$ = newUNOP(OP_ENTERSUB, |
529 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 530 | prepend_elem(OP_LIST, |
c07a80fd | 531 | scalar(newCVREF( |
532 | (OPpENTERSUB_AMPER<<8), | |
533 | scalar($2) | |
534 | )),Nullop)); dep();} | |
a0d0e21e | 535 | | DO WORD '(' expr ')' |
c07a80fd | 536 | { $$ = newUNOP(OP_ENTERSUB, |
537 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 538 | append_elem(OP_LIST, |
a0d0e21e | 539 | $4, |
c07a80fd | 540 | scalar(newCVREF( |
541 | (OPpENTERSUB_AMPER<<8), | |
542 | scalar($2) | |
543 | )))); dep();} | |
79072805 | 544 | | DO scalar '(' ')' |
a0d0e21e | 545 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 546 | prepend_elem(OP_LIST, |
c07a80fd | 547 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
548 | | DO scalar '(' expr ')' |
549 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 550 | prepend_elem(OP_LIST, |
a0d0e21e | 551 | $4, |
c07a80fd | 552 | scalar(newCVREF(0,scalar($2))))); dep();} |
6da72b64 CS |
553 | | term ARROW '(' ')' %prec '(' |
554 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
555 | newCVREF(0, scalar($1))); } | |
556 | | term ARROW '(' expr ')' %prec '(' | |
557 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
558 | append_elem(OP_LIST, $4, | |
559 | newCVREF(0, scalar($1)))); } | |
8d063cd8 | 560 | | LOOPEX |
85e6fe83 | 561 | { $$ = newOP($1, OPf_SPECIAL); |
3280af22 | 562 | PL_hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e | 563 | | LOOPEX term |
8990e307 | 564 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 565 | | NOTOP argexpr |
566 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 567 | | UNIOP |
79072805 | 568 | { $$ = newOP($1, 0); } |
f0fcb552 | 569 | | UNIOP block |
79072805 | 570 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 571 | | UNIOP term |
79072805 | 572 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
573 | | UNIOPSUB term |
574 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
575 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 576 | | FUNC0 |
79072805 | 577 | { $$ = newOP($1, 0); } |
ae986130 | 578 | | FUNC0 '(' ')' |
79072805 | 579 | { $$ = newOP($1, 0); } |
4633a7c4 | 580 | | FUNC0SUB |
28757baa | 581 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 582 | scalar($1)); } |
03a14243 | 583 | | FUNC1 '(' ')' |
79072805 | 584 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 585 | | FUNC1 '(' expr ')' |
79072805 | 586 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 587 | | PMFUNC '(' term ')' |
79072805 | 588 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 589 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
590 | { $$ = pmruntime($1, $3, $5); } |
591 | | WORD | |
378cc40b | 592 | | listop |
8d063cd8 LW |
593 | ; |
594 | ||
79072805 | 595 | listexpr: /* NULL */ |
8990e307 | 596 | { $$ = Nullop; } |
a0d0e21e LW |
597 | | argexpr |
598 | { $$ = $1; } | |
599 | ; | |
600 | ||
601 | listexprcom: /* NULL */ | |
602 | { $$ = Nullop; } | |
79072805 LW |
603 | | expr |
604 | { $$ = $1; } | |
a0d0e21e LW |
605 | | expr ',' |
606 | { $$ = $1; } | |
79072805 LW |
607 | ; |
608 | ||
55497cff | 609 | local : LOCAL { $$ = 0; } |
610 | | MY { $$ = 1; } | |
611 | ; | |
612 | ||
613 | my_scalar: scalar | |
3280af22 | 614 | { PL_in_my = 0; $$ = my($1); } |
55497cff | 615 | ; |
616 | ||
79072805 | 617 | amper : '&' indirob |
c07a80fd | 618 | { $$ = newCVREF($1,$2); } |
a687059c LW |
619 | ; |
620 | ||
79072805 LW |
621 | scalar : '$' indirob |
622 | { $$ = newSVREF($2); } | |
a687059c LW |
623 | ; |
624 | ||
79072805 LW |
625 | ary : '@' indirob |
626 | { $$ = newAVREF($2); } | |
627 | ; | |
628 | ||
629 | hsh : '%' indirob | |
630 | { $$ = newHVREF($2); } | |
631 | ; | |
632 | ||
633 | arylen : DOLSHARP indirob | |
634 | { $$ = newAVREF($2); } | |
635 | ; | |
636 | ||
637 | star : '*' indirob | |
a0d0e21e | 638 | { $$ = newGVREF(0,$2); } |
79072805 LW |
639 | ; |
640 | ||
641 | indirob : WORD | |
642 | { $$ = scalar($1); } | |
643 | | scalar | |
463ee0b2 | 644 | { $$ = scalar($1); } |
79072805 | 645 | | block |
a0d0e21e | 646 | { $$ = scope($1); } |
79072805 | 647 | |
93a17b20 LW |
648 | | PRIVATEREF |
649 | { $$ = $1; } | |
8d063cd8 LW |
650 | ; |
651 | ||
652 | %% /* PROGRAM */ |