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" |
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 | ||
29 | %union { | |
79072805 LW |
30 | I32 ival; |
31 | char *pval; | |
32 | OP *opval; | |
33 | GV *gvval; | |
8d063cd8 LW |
34 | } |
35 | ||
f0fcb552 LW |
36 | %token <ival> '{' ')' |
37 | ||
a0d0e21e | 38 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 | 39 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
79072805 | 40 | %token <pval> LABEL |
a0d0e21e | 41 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
79072805 LW |
42 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
43 | %token <ival> LOOPEX DOTDOT | |
36477c24 | 44 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
79072805 | 45 | %token <ival> RELOP EQOP MULOP ADDOP |
55497cff | 46 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
47 | %token LOCAL MY | |
79072805 | 48 | |
44a8e56a | 49 | %type <ival> prog decl local format startsub startanonsub startformsub |
28757baa | 50 | %type <ival> remember mremember '&' |
bbce6d69 | 51 | %type <opval> block mblock lineseq line loop cond else |
a0d0e21e | 52 | %type <opval> expr term scalar ary hsh arylen star amper sideff |
bbce6d69 | 53 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
44a8e56a | 54 | %type <opval> listexpr listexprcom indirob listop method |
55 | %type <opval> formname subname proto subbody cont my_scalar | |
79072805 | 56 | %type <pval> label |
79072805 | 57 | |
a0d0e21e | 58 | %left <ival> OROP |
463ee0b2 | 59 | %left ANDOP |
c07a80fd | 60 | %right NOTOP |
36477c24 | 61 | %nonassoc LSTOP LSTOPSUB |
8d063cd8 | 62 | %left ',' |
a0d0e21e | 63 | %right <ival> ASSIGNOP |
8d063cd8 LW |
64 | %right '?' ':' |
65 | %nonassoc DOTDOT | |
66 | %left OROR | |
67 | %left ANDAND | |
79072805 LW |
68 | %left <ival> BITOROP |
69 | %left <ival> BITANDOP | |
a687059c LW |
70 | %nonassoc EQOP |
71 | %nonassoc RELOP | |
36477c24 | 72 | %nonassoc UNIOP UNIOPSUB |
79072805 | 73 | %left <ival> SHIFTOP |
a687059c LW |
74 | %left ADDOP |
75 | %left MULOP | |
8990e307 | 76 | %left <ival> MATCHOP |
79072805 LW |
77 | %right '!' '~' UMINUS REFGEN |
78 | %right <ival> POWOP | |
79 | %nonassoc PREINC PREDEC POSTINC POSTDEC | |
8990e307 | 80 | %left ARROW |
8d063cd8 LW |
81 | %left '(' |
82 | ||
83 | %% /* RULES */ | |
84 | ||
ae986130 LW |
85 | prog : /* NULL */ |
86 | { | |
87 | #if defined(YYDEBUG) && defined(DEBUGGING) | |
88 | yydebug = (debug & 1); | |
89 | #endif | |
8990e307 | 90 | expect = XSTATE; |
ae986130 LW |
91 | } |
92 | /*CONTINUED*/ lineseq | |
a0d0e21e | 93 | { newPROG($2); } |
8d063cd8 LW |
94 | ; |
95 | ||
a687059c | 96 | block : '{' remember lineseq '}' |
36477c24 | 97 | { if (copline > (line_t)$1) |
98 | copline = $1; | |
99 | $$ = block_end($2, $3); } | |
a0d0e21e LW |
100 | ; |
101 | ||
55497cff | 102 | remember: /* NULL */ /* start a full lexical scope */ |
103 | { $$ = block_start(TRUE); } | |
104 | ; | |
105 | ||
bbce6d69 | 106 | mblock : '{' mremember lineseq '}' |
36477c24 | 107 | { if (copline > (line_t)$1) |
108 | copline = $1; | |
109 | $$ = block_end($2, $3); } | |
55497cff | 110 | ; |
111 | ||
112 | mremember: /* NULL */ /* start a partial lexical scope */ | |
113 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
114 | ; |
115 | ||
116 | lineseq : /* NULL */ | |
79072805 LW |
117 | { $$ = Nullop; } |
118 | | lineseq decl | |
119 | { $$ = $1; } | |
8d063cd8 | 120 | | lineseq line |
463ee0b2 | 121 | { $$ = append_list(OP_LINESEQ, |
a0d0e21e LW |
122 | (LISTOP*)$1, (LISTOP*)$2); |
123 | pad_reset_pending = TRUE; | |
85e6fe83 | 124 | if ($1 && $2) hints |= HINT_BLOCK_SCOPE; } |
8d063cd8 LW |
125 | ; |
126 | ||
79072805 LW |
127 | line : label cond |
128 | { $$ = newSTATEOP(0, $1, $2); } | |
8d063cd8 LW |
129 | | loop /* loops add their own labels */ |
130 | | label ';' | |
131 | { if ($1 != Nullch) { | |
79072805 | 132 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 LW |
133 | } |
134 | else { | |
79072805 LW |
135 | $$ = Nullop; |
136 | copline = NOLINE; | |
32c2e4fb | 137 | } |
8990e307 | 138 | expect = XSTATE; } |
8d063cd8 | 139 | | label sideff ';' |
79072805 | 140 | { $$ = newSTATEOP(0, $1, $2); |
8990e307 | 141 | expect = XSTATE; } |
8d063cd8 LW |
142 | ; |
143 | ||
a687059c | 144 | sideff : error |
79072805 | 145 | { $$ = Nullop; } |
a687059c | 146 | | expr |
79072805 | 147 | { $$ = $1; } |
a687059c | 148 | | expr IF expr |
79072805 | 149 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 150 | | expr UNLESS expr |
79072805 | 151 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 152 | | expr WHILE expr |
8990e307 | 153 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 154 | | expr UNTIL iexpr |
155 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
ecca16b0 CS |
156 | | expr FOR expr |
157 | { $$ = newFOROP(0, Nullch, $2, | |
158 | Nullop, $3, $1, Nullop); } | |
79072805 LW |
159 | ; |
160 | ||
161 | else : /* NULL */ | |
162 | { $$ = Nullop; } | |
55497cff | 163 | | ELSE mblock |
79072805 | 164 | { $$ = scope($2); } |
55497cff | 165 | | ELSIF '(' mexpr ')' mblock else |
79072805 | 166 | { copline = $1; |
bbce6d69 | 167 | $$ = newSTATEOP(0, Nullch, |
168 | newCONDOP(0, $3, scope($5), $6)); | |
4633a7c4 | 169 | hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
170 | ; |
171 | ||
55497cff | 172 | cond : IF '(' remember mexpr ')' mblock else |
79072805 | 173 | { copline = $1; |
36477c24 | 174 | $$ = block_end($3, |
bbce6d69 | 175 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 176 | | UNLESS '(' remember miexpr ')' mblock else |
79072805 | 177 | { copline = $1; |
36477c24 | 178 | $$ = block_end($3, |
bbce6d69 | 179 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
180 | ; |
181 | ||
182 | cont : /* NULL */ | |
183 | { $$ = Nullop; } | |
184 | | CONTINUE block | |
185 | { $$ = scope($2); } | |
186 | ; | |
187 | ||
55497cff | 188 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
79072805 | 189 | { copline = $2; |
36477c24 | 190 | $$ = block_end($4, |
55497cff | 191 | newSTATEOP(0, $1, |
bbce6d69 | 192 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 193 | $2, $5, $7, $8))); } |
55497cff | 194 | | label UNTIL '(' remember miexpr ')' mblock cont |
79072805 | 195 | { copline = $2; |
36477c24 | 196 | $$ = block_end($4, |
55497cff | 197 | newSTATEOP(0, $1, |
bbce6d69 | 198 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 199 | $2, $5, $7, $8))); } |
bbce6d69 | 200 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 201 | { $$ = block_end($4, |
bbce6d69 | 202 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
203 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 204 | { $$ = block_end($5, |
bbce6d69 | 205 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
206 | $6, $8, $9)); } | |
207 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 208 | { $$ = block_end($4, |
55497cff | 209 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 210 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 211 | /* basically fake up an initialize-while lineseq */ |
fb73857a | 212 | { OP *forop = append_elem(OP_LINESEQ, |
213 | scalar($5), | |
214 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
215 | $2, scalar($7), | |
216 | $11, scalar($9))); | |
217 | copline = $2; | |
218 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } | |
79072805 | 219 | | label block cont /* a block is a loop that happens once */ |
fb73857a | 220 | { $$ = newSTATEOP(0, $1, |
221 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
222 | NOLINE, Nullop, $2, $3)); } | |
8d063cd8 LW |
223 | ; |
224 | ||
225 | nexpr : /* NULL */ | |
79072805 | 226 | { $$ = Nullop; } |
8d063cd8 LW |
227 | | sideff |
228 | ; | |
229 | ||
230 | texpr : /* NULL means true */ | |
79072805 | 231 | { (void)scan_num("1"); $$ = yylval.opval; } |
8d063cd8 LW |
232 | | expr |
233 | ; | |
234 | ||
55497cff | 235 | iexpr : expr |
236 | { $$ = invert(scalar($1)); } | |
237 | ; | |
238 | ||
239 | mexpr : expr | |
bbce6d69 | 240 | { $$ = $1; intro_my(); } |
241 | ; | |
242 | ||
243 | mnexpr : nexpr | |
244 | { $$ = $1; intro_my(); } | |
55497cff | 245 | ; |
246 | ||
247 | mtexpr : texpr | |
bbce6d69 | 248 | { $$ = $1; intro_my(); } |
55497cff | 249 | ; |
250 | ||
251 | miexpr : iexpr | |
bbce6d69 | 252 | { $$ = $1; intro_my(); } |
55497cff | 253 | ; |
254 | ||
8d063cd8 LW |
255 | label : /* empty */ |
256 | { $$ = Nullch; } | |
32c2e4fb | 257 | | LABEL |
8d063cd8 LW |
258 | ; |
259 | ||
8d063cd8 LW |
260 | decl : format |
261 | { $$ = 0; } | |
262 | | subrout | |
263 | { $$ = 0; } | |
a687059c LW |
264 | | package |
265 | { $$ = 0; } | |
a0d0e21e | 266 | | use |
85e6fe83 | 267 | { $$ = 0; } |
8d063cd8 LW |
268 | ; |
269 | ||
44a8e56a | 270 | format : FORMAT startformsub formname block |
a0d0e21e | 271 | { newFORM($2, $3, $4); } |
44a8e56a | 272 | ; |
273 | ||
274 | formname: WORD { $$ = $1; } | |
275 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
276 | ; |
277 | ||
28757baa | 278 | subrout : SUB startsub subname proto subbody |
4633a7c4 | 279 | { newSUB($2, $3, $4, $5); } |
28757baa | 280 | ; |
281 | ||
fa83b5b6 | 282 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 283 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 284 | ; |
285 | ||
286 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 287 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 288 | ; |
289 | ||
44a8e56a | 290 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 291 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 292 | ; |
293 | ||
e858de61 MB |
294 | subname : WORD { char *name = SvPV(((SVOP*)$1)->op_sv, na); |
295 | if (strEQ(name, "BEGIN") || strEQ(name, "END") | |
7d07dbc2 | 296 | || strEQ(name, "INIT")) |
977336f5 | 297 | CvUNIQUE_on(compcv); |
28757baa | 298 | $$ = $1; } |
a0d0e21e LW |
299 | ; |
300 | ||
4633a7c4 LW |
301 | proto : /* NULL */ |
302 | { $$ = Nullop; } | |
303 | | THING | |
304 | ; | |
28757baa | 305 | |
306 | subbody : block { $$ = $1; } | |
307 | | ';' { $$ = Nullop; expect = XSTATE; } | |
8d063cd8 LW |
308 | ; |
309 | ||
a687059c | 310 | package : PACKAGE WORD ';' |
79072805 | 311 | { package($2); } |
93a17b20 LW |
312 | | PACKAGE ';' |
313 | { package(Nullop); } | |
a687059c LW |
314 | ; |
315 | ||
28757baa | 316 | use : USE startsub |
317 | { CvUNIQUE_on(compcv); /* It's a BEGIN {} */ } | |
318 | WORD WORD listexpr ';' | |
319 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
320 | ; |
321 | ||
a0d0e21e LW |
322 | expr : expr ANDOP expr |
323 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
324 | | expr OROP expr | |
325 | { $$ = newLOGOP($2, 0, $1, $3); } | |
a0d0e21e LW |
326 | | argexpr |
327 | ; | |
328 | ||
329 | argexpr : argexpr ',' | |
330 | { $$ = $1; } | |
331 | | argexpr ',' term | |
79072805 | 332 | { $$ = append_elem(OP_LIST, $1, $3); } |
a0d0e21e | 333 | | term |
8d063cd8 LW |
334 | ; |
335 | ||
a0d0e21e | 336 | listop : LSTOP indirob argexpr |
79072805 | 337 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
338 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
339 | | FUNC '(' indirob expr ')' | |
79072805 | 340 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
341 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
342 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 343 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 344 | append_elem(OP_LIST, |
55497cff | 345 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 346 | newUNOP(OP_METHOD, 0, $3))); } |
79072805 | 347 | | METHOD indirob listexpr |
4633a7c4 | 348 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 349 | append_elem(OP_LIST, |
4633a7c4 | 350 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
351 | newUNOP(OP_METHOD, 0, $1))); } |
352 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 353 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 354 | append_elem(OP_LIST, |
4633a7c4 | 355 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 356 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
357 | | LSTOP listexpr |
358 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 359 | | FUNC '(' listexprcom ')' |
79072805 | 360 | { $$ = convert($1, 0, $3); } |
28757baa | 361 | | LSTOPSUB startanonsub block |
362 | { $3 = newANONSUB($2, 0, $3); } | |
363 | listexpr %prec LSTOP | |
4633a7c4 | 364 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 365 | append_elem(OP_LIST, |
366 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
367 | ; |
368 | ||
a0d0e21e LW |
369 | method : METHOD |
370 | | scalar | |
371 | ; | |
372 | ||
373 | term : term ASSIGNOP term | |
374 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
375 | | term POWOP term | |
79072805 | 376 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 377 | | term MULOP term |
79072805 LW |
378 | { if ($2 != OP_REPEAT) |
379 | scalar($1); | |
380 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 381 | | term ADDOP term |
79072805 | 382 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 383 | | term SHIFTOP term |
79072805 | 384 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 385 | | term RELOP term |
79072805 | 386 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 387 | | term EQOP term |
79072805 | 388 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 389 | | term BITANDOP term |
79072805 | 390 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 391 | | term BITOROP term |
79072805 | 392 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 393 | | term DOTDOT term |
79072805 | 394 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 395 | | term ANDAND term |
463ee0b2 | 396 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 397 | | term OROR term |
463ee0b2 | 398 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 399 | | term '?' term ':' term |
79072805 | 400 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 401 | | term MATCHOP term |
79072805 | 402 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 403 | |
a0d0e21e | 404 | | '-' term %prec UMINUS |
79072805 | 405 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
406 | | '+' term %prec UMINUS |
407 | { $$ = $2; } | |
8d063cd8 | 408 | | '!' term |
79072805 | 409 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 410 | | '~' term |
79072805 LW |
411 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
412 | | REFGEN term | |
a0d0e21e | 413 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
414 | | term POSTINC |
415 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 416 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
417 | | term POSTDEC |
418 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 419 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
420 | | PREINC term |
421 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 422 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
423 | | PREDEC term |
424 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 425 | mod(scalar($2), OP_PREDEC)); } |
55497cff | 426 | | local term %prec UNIOP |
93a17b20 | 427 | { $$ = localize($2,$1); } |
a0d0e21e | 428 | | '(' expr ')' |
79072805 | 429 | { $$ = sawparens($2); } |
8d063cd8 | 430 | | '(' ')' |
8990e307 | 431 | { $$ = sawparens(newNULLLIST()); } |
a0d0e21e | 432 | | '[' expr ']' %prec '(' |
79072805 LW |
433 | { $$ = newANONLIST($2); } |
434 | | '[' ']' %prec '(' | |
435 | { $$ = newANONLIST(Nullop); } | |
a0d0e21e | 436 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
437 | { $$ = newANONHASH($2); } |
438 | | HASHBRACK ';' '}' %prec '(' | |
439 | { $$ = newANONHASH(Nullop); } | |
28757baa | 440 | | ANONSUB startanonsub proto block %prec '(' |
4633a7c4 | 441 | { $$ = newANONSUB($2, $3, $4); } |
79072805 | 442 | | scalar %prec '(' |
8d063cd8 | 443 | { $$ = $1; } |
c07a80fd | 444 | | star '{' expr ';' '}' |
640b9ef6 | 445 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
79072805 | 446 | | star %prec '(' |
8d063cd8 | 447 | { $$ = $1; } |
79072805 LW |
448 | | scalar '[' expr ']' %prec '(' |
449 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
450 | | term ARROW '[' expr ']' %prec '(' | |
451 | { $$ = newBINOP(OP_AELEM, 0, | |
8990e307 | 452 | ref(newAVREF($1),OP_RV2AV), |
79072805 | 453 | scalar($4));} |
463ee0b2 | 454 | | term '[' expr ']' %prec '(' |
a0d0e21e | 455 | { assertref($1); $$ = newBINOP(OP_AELEM, 0, |
8990e307 | 456 | ref(newAVREF($1),OP_RV2AV), |
463ee0b2 | 457 | scalar($3));} |
79072805 | 458 | | hsh %prec '(' |
8d063cd8 | 459 | { $$ = $1; } |
79072805 | 460 | | ary %prec '(' |
8d063cd8 | 461 | { $$ = $1; } |
79072805 LW |
462 | | arylen %prec '(' |
463 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
464 | | scalar '{' expr ';' '}' %prec '(' | |
465 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
466 | expect = XOPERATOR; } | |
467 | | term ARROW '{' expr ';' '}' %prec '(' | |
468 | { $$ = newBINOP(OP_HELEM, 0, | |
8990e307 | 469 | ref(newHVREF($1),OP_RV2HV), |
79072805 LW |
470 | jmaybe($4)); |
471 | expect = XOPERATOR; } | |
463ee0b2 | 472 | | term '{' expr ';' '}' %prec '(' |
a0d0e21e | 473 | { assertref($1); $$ = newBINOP(OP_HELEM, 0, |
8990e307 | 474 | ref(newHVREF($1),OP_RV2HV), |
463ee0b2 LW |
475 | jmaybe($3)); |
476 | expect = XOPERATOR; } | |
a0d0e21e | 477 | | '(' expr ')' '[' expr ']' %prec '(' |
79072805 LW |
478 | { $$ = newSLICEOP(0, $5, $2); } |
479 | | '(' ')' '[' expr ']' %prec '(' | |
480 | { $$ = newSLICEOP(0, $4, Nullop); } | |
481 | | ary '[' expr ']' %prec '(' | |
482 | { $$ = prepend_elem(OP_ASLICE, | |
483 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
484 | newLISTOP(OP_ASLICE, 0, |
485 | list($3), | |
a0d0e21e | 486 | ref($1, OP_ASLICE))); } |
79072805 LW |
487 | | ary '{' expr ';' '}' %prec '(' |
488 | { $$ = prepend_elem(OP_HSLICE, | |
489 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
490 | newLISTOP(OP_HSLICE, 0, |
491 | list($3), | |
a0d0e21e | 492 | ref(oopsHV($1), OP_HSLICE))); |
79072805 LW |
493 | expect = XOPERATOR; } |
494 | | THING %prec '(' | |
495 | { $$ = $1; } | |
496 | | amper | |
c07a80fd | 497 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 498 | | amper '(' ')' |
a0d0e21e LW |
499 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
500 | | amper '(' expr ')' | |
501 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 502 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 503 | | NOAMP WORD listexpr |
a0d0e21e | 504 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 505 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 506 | | DO term %prec UNIOP |
463ee0b2 | 507 | { $$ = newUNOP(OP_DOFILE, 0, scalar($2)); } |
79072805 LW |
508 | | DO block %prec '(' |
509 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 510 | | DO WORD '(' ')' |
c07a80fd | 511 | { $$ = newUNOP(OP_ENTERSUB, |
512 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 513 | prepend_elem(OP_LIST, |
c07a80fd | 514 | scalar(newCVREF( |
515 | (OPpENTERSUB_AMPER<<8), | |
516 | scalar($2) | |
517 | )),Nullop)); dep();} | |
a0d0e21e | 518 | | DO WORD '(' expr ')' |
c07a80fd | 519 | { $$ = newUNOP(OP_ENTERSUB, |
520 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 521 | append_elem(OP_LIST, |
a0d0e21e | 522 | $4, |
c07a80fd | 523 | scalar(newCVREF( |
524 | (OPpENTERSUB_AMPER<<8), | |
525 | scalar($2) | |
526 | )))); dep();} | |
79072805 | 527 | | DO scalar '(' ')' |
a0d0e21e | 528 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 529 | prepend_elem(OP_LIST, |
c07a80fd | 530 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
531 | | DO scalar '(' expr ')' |
532 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 533 | prepend_elem(OP_LIST, |
a0d0e21e | 534 | $4, |
c07a80fd | 535 | scalar(newCVREF(0,scalar($2))))); dep();} |
6da72b64 CS |
536 | | term ARROW '(' ')' %prec '(' |
537 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
538 | newCVREF(0, scalar($1))); } | |
539 | | term ARROW '(' expr ')' %prec '(' | |
540 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
541 | append_elem(OP_LIST, $4, | |
542 | newCVREF(0, scalar($1)))); } | |
8d063cd8 | 543 | | LOOPEX |
85e6fe83 LW |
544 | { $$ = newOP($1, OPf_SPECIAL); |
545 | hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 546 | | LOOPEX term |
8990e307 | 547 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 548 | | NOTOP argexpr |
549 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 550 | | UNIOP |
79072805 | 551 | { $$ = newOP($1, 0); } |
f0fcb552 | 552 | | UNIOP block |
79072805 | 553 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 554 | | UNIOP term |
79072805 | 555 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
556 | | UNIOPSUB term |
557 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
558 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 559 | | FUNC0 |
79072805 | 560 | { $$ = newOP($1, 0); } |
ae986130 | 561 | | FUNC0 '(' ')' |
79072805 | 562 | { $$ = newOP($1, 0); } |
4633a7c4 | 563 | | FUNC0SUB |
28757baa | 564 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 565 | scalar($1)); } |
03a14243 | 566 | | FUNC1 '(' ')' |
79072805 | 567 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 568 | | FUNC1 '(' expr ')' |
79072805 | 569 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 570 | | PMFUNC '(' term ')' |
79072805 | 571 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 572 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
573 | { $$ = pmruntime($1, $3, $5); } |
574 | | WORD | |
378cc40b | 575 | | listop |
8d063cd8 LW |
576 | ; |
577 | ||
79072805 | 578 | listexpr: /* NULL */ |
8990e307 | 579 | { $$ = Nullop; } |
a0d0e21e LW |
580 | | argexpr |
581 | { $$ = $1; } | |
582 | ; | |
583 | ||
584 | listexprcom: /* NULL */ | |
585 | { $$ = Nullop; } | |
79072805 LW |
586 | | expr |
587 | { $$ = $1; } | |
a0d0e21e LW |
588 | | expr ',' |
589 | { $$ = $1; } | |
79072805 LW |
590 | ; |
591 | ||
55497cff | 592 | local : LOCAL { $$ = 0; } |
593 | | MY { $$ = 1; } | |
594 | ; | |
595 | ||
596 | my_scalar: scalar | |
597 | { in_my = 0; $$ = my($1); } | |
598 | ; | |
599 | ||
79072805 | 600 | amper : '&' indirob |
c07a80fd | 601 | { $$ = newCVREF($1,$2); } |
a687059c LW |
602 | ; |
603 | ||
79072805 LW |
604 | scalar : '$' indirob |
605 | { $$ = newSVREF($2); } | |
a687059c LW |
606 | ; |
607 | ||
79072805 LW |
608 | ary : '@' indirob |
609 | { $$ = newAVREF($2); } | |
610 | ; | |
611 | ||
612 | hsh : '%' indirob | |
613 | { $$ = newHVREF($2); } | |
614 | ; | |
615 | ||
616 | arylen : DOLSHARP indirob | |
617 | { $$ = newAVREF($2); } | |
618 | ; | |
619 | ||
620 | star : '*' indirob | |
a0d0e21e | 621 | { $$ = newGVREF(0,$2); } |
79072805 LW |
622 | ; |
623 | ||
624 | indirob : WORD | |
625 | { $$ = scalar($1); } | |
626 | | scalar | |
463ee0b2 | 627 | { $$ = scalar($1); } |
79072805 | 628 | | block |
a0d0e21e | 629 | { $$ = scope($1); } |
79072805 | 630 | |
93a17b20 LW |
631 | | PRIVATEREF |
632 | { $$ = $1; } | |
8d063cd8 LW |
633 | ; |
634 | ||
635 | %% /* PROGRAM */ |