Commit | Line | Data |
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a0d0e21e | 1 | /* perly.y |
a687059c | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, 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 LW |
19 | static void |
20 | dep() | |
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 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
79072805 LW |
156 | ; |
157 | ||
158 | else : /* NULL */ | |
159 | { $$ = Nullop; } | |
55497cff | 160 | | ELSE mblock |
79072805 | 161 | { $$ = scope($2); } |
55497cff | 162 | | ELSIF '(' mexpr ')' mblock else |
79072805 | 163 | { copline = $1; |
bbce6d69 | 164 | $$ = newSTATEOP(0, Nullch, |
165 | newCONDOP(0, $3, scope($5), $6)); | |
4633a7c4 | 166 | hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
167 | ; |
168 | ||
55497cff | 169 | cond : IF '(' remember mexpr ')' mblock else |
79072805 | 170 | { copline = $1; |
36477c24 | 171 | $$ = block_end($3, |
bbce6d69 | 172 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 173 | | UNLESS '(' remember miexpr ')' mblock else |
79072805 | 174 | { copline = $1; |
36477c24 | 175 | $$ = block_end($3, |
bbce6d69 | 176 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
177 | ; |
178 | ||
179 | cont : /* NULL */ | |
180 | { $$ = Nullop; } | |
181 | | CONTINUE block | |
182 | { $$ = scope($2); } | |
183 | ; | |
184 | ||
55497cff | 185 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
79072805 | 186 | { copline = $2; |
36477c24 | 187 | $$ = block_end($4, |
55497cff | 188 | newSTATEOP(0, $1, |
bbce6d69 | 189 | newWHILEOP(0, 1, (LOOP*)Nullop, |
190 | $5, $7, $8))); } | |
55497cff | 191 | | label UNTIL '(' remember miexpr ')' mblock cont |
79072805 | 192 | { copline = $2; |
36477c24 | 193 | $$ = block_end($4, |
55497cff | 194 | newSTATEOP(0, $1, |
bbce6d69 | 195 | newWHILEOP(0, 1, (LOOP*)Nullop, |
196 | $5, $7, $8))); } | |
bbce6d69 | 197 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 198 | { $$ = block_end($4, |
bbce6d69 | 199 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
200 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 201 | { $$ = block_end($5, |
bbce6d69 | 202 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
203 | $6, $8, $9)); } | |
204 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 205 | { $$ = block_end($4, |
55497cff | 206 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 207 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 208 | /* basically fake up an initialize-while lineseq */ |
55497cff | 209 | { copline = $2; |
36477c24 | 210 | $$ = block_end($4, |
bbce6d69 | 211 | append_elem(OP_LINESEQ, scalar($5), |
212 | newSTATEOP(0, $1, | |
213 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
214 | scalar($7), | |
215 | $11, scalar($9))))); } | |
79072805 LW |
216 | | label block cont /* a block is a loop that happens once */ |
217 | { $$ = newSTATEOP(0, | |
463ee0b2 LW |
218 | $1, newWHILEOP(0, 1, (LOOP*)Nullop, |
219 | Nullop, $2, $3)); } | |
8d063cd8 LW |
220 | ; |
221 | ||
222 | nexpr : /* NULL */ | |
79072805 | 223 | { $$ = Nullop; } |
8d063cd8 LW |
224 | | sideff |
225 | ; | |
226 | ||
227 | texpr : /* NULL means true */ | |
79072805 | 228 | { (void)scan_num("1"); $$ = yylval.opval; } |
8d063cd8 LW |
229 | | expr |
230 | ; | |
231 | ||
55497cff | 232 | iexpr : expr |
233 | { $$ = invert(scalar($1)); } | |
234 | ; | |
235 | ||
236 | mexpr : expr | |
bbce6d69 | 237 | { $$ = $1; intro_my(); } |
238 | ; | |
239 | ||
240 | mnexpr : nexpr | |
241 | { $$ = $1; intro_my(); } | |
55497cff | 242 | ; |
243 | ||
244 | mtexpr : texpr | |
bbce6d69 | 245 | { $$ = $1; intro_my(); } |
55497cff | 246 | ; |
247 | ||
248 | miexpr : iexpr | |
bbce6d69 | 249 | { $$ = $1; intro_my(); } |
55497cff | 250 | ; |
251 | ||
8d063cd8 LW |
252 | label : /* empty */ |
253 | { $$ = Nullch; } | |
32c2e4fb | 254 | | LABEL |
8d063cd8 LW |
255 | ; |
256 | ||
8d063cd8 LW |
257 | decl : format |
258 | { $$ = 0; } | |
259 | | subrout | |
260 | { $$ = 0; } | |
a687059c LW |
261 | | package |
262 | { $$ = 0; } | |
a0d0e21e | 263 | | use |
85e6fe83 | 264 | { $$ = 0; } |
8d063cd8 LW |
265 | ; |
266 | ||
44a8e56a | 267 | format : FORMAT startformsub formname block |
a0d0e21e | 268 | { newFORM($2, $3, $4); } |
44a8e56a | 269 | ; |
270 | ||
271 | formname: WORD { $$ = $1; } | |
272 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
273 | ; |
274 | ||
28757baa | 275 | subrout : SUB startsub subname proto subbody |
4633a7c4 | 276 | { newSUB($2, $3, $4, $5); } |
28757baa | 277 | ; |
278 | ||
fa83b5b6 | 279 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 280 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 281 | ; |
282 | ||
283 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 284 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 285 | ; |
286 | ||
44a8e56a | 287 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 288 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 289 | ; |
290 | ||
28757baa | 291 | subname : WORD { char *name = SvPVx(((SVOP*)$1)->op_sv, na); |
292 | if (strEQ(name, "BEGIN") || strEQ(name, "END")) | |
293 | CvUNIQUE_on(compcv); | |
294 | $$ = $1; } | |
a0d0e21e LW |
295 | ; |
296 | ||
4633a7c4 LW |
297 | proto : /* NULL */ |
298 | { $$ = Nullop; } | |
299 | | THING | |
300 | ; | |
28757baa | 301 | |
302 | subbody : block { $$ = $1; } | |
303 | | ';' { $$ = Nullop; expect = XSTATE; } | |
8d063cd8 LW |
304 | ; |
305 | ||
a687059c | 306 | package : PACKAGE WORD ';' |
79072805 | 307 | { package($2); } |
93a17b20 LW |
308 | | PACKAGE ';' |
309 | { package(Nullop); } | |
a687059c LW |
310 | ; |
311 | ||
28757baa | 312 | use : USE startsub |
313 | { CvUNIQUE_on(compcv); /* It's a BEGIN {} */ } | |
314 | WORD WORD listexpr ';' | |
315 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
316 | ; |
317 | ||
a0d0e21e LW |
318 | expr : expr ANDOP expr |
319 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
320 | | expr OROP expr | |
321 | { $$ = newLOGOP($2, 0, $1, $3); } | |
a0d0e21e LW |
322 | | argexpr |
323 | ; | |
324 | ||
325 | argexpr : argexpr ',' | |
326 | { $$ = $1; } | |
327 | | argexpr ',' term | |
79072805 | 328 | { $$ = append_elem(OP_LIST, $1, $3); } |
a0d0e21e | 329 | | term |
8d063cd8 LW |
330 | ; |
331 | ||
a0d0e21e | 332 | listop : LSTOP indirob argexpr |
79072805 | 333 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
334 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
335 | | FUNC '(' indirob expr ')' | |
79072805 | 336 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
337 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
338 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 339 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 340 | append_elem(OP_LIST, |
55497cff | 341 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 342 | newUNOP(OP_METHOD, 0, $3))); } |
79072805 | 343 | | METHOD indirob listexpr |
4633a7c4 | 344 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 345 | append_elem(OP_LIST, |
4633a7c4 | 346 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
347 | newUNOP(OP_METHOD, 0, $1))); } |
348 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 349 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 350 | append_elem(OP_LIST, |
4633a7c4 | 351 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 352 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
353 | | LSTOP listexpr |
354 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 355 | | FUNC '(' listexprcom ')' |
79072805 | 356 | { $$ = convert($1, 0, $3); } |
28757baa | 357 | | LSTOPSUB startanonsub block |
358 | { $3 = newANONSUB($2, 0, $3); } | |
359 | listexpr %prec LSTOP | |
4633a7c4 | 360 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 361 | append_elem(OP_LIST, |
362 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
363 | ; |
364 | ||
a0d0e21e LW |
365 | method : METHOD |
366 | | scalar | |
367 | ; | |
368 | ||
369 | term : term ASSIGNOP term | |
370 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
371 | | term POWOP term | |
79072805 | 372 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 373 | | term MULOP term |
79072805 LW |
374 | { if ($2 != OP_REPEAT) |
375 | scalar($1); | |
376 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 377 | | term ADDOP term |
79072805 | 378 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 379 | | term SHIFTOP term |
79072805 | 380 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 381 | | term RELOP term |
79072805 | 382 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 383 | | term EQOP term |
79072805 | 384 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 385 | | term BITANDOP term |
79072805 | 386 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 387 | | term BITOROP term |
79072805 | 388 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 389 | | term DOTDOT term |
79072805 | 390 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 391 | | term ANDAND term |
463ee0b2 | 392 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 393 | | term OROR term |
463ee0b2 | 394 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 395 | | term '?' term ':' term |
79072805 | 396 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 397 | | term MATCHOP term |
79072805 | 398 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 399 | |
a0d0e21e | 400 | | '-' term %prec UMINUS |
79072805 | 401 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
402 | | '+' term %prec UMINUS |
403 | { $$ = $2; } | |
8d063cd8 | 404 | | '!' term |
79072805 | 405 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 406 | | '~' term |
79072805 LW |
407 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
408 | | REFGEN term | |
a0d0e21e | 409 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
410 | | term POSTINC |
411 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 412 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
413 | | term POSTDEC |
414 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 415 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
416 | | PREINC term |
417 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 418 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
419 | | PREDEC term |
420 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 421 | mod(scalar($2), OP_PREDEC)); } |
55497cff | 422 | | local term %prec UNIOP |
93a17b20 | 423 | { $$ = localize($2,$1); } |
a0d0e21e | 424 | | '(' expr ')' |
79072805 | 425 | { $$ = sawparens($2); } |
8d063cd8 | 426 | | '(' ')' |
8990e307 | 427 | { $$ = sawparens(newNULLLIST()); } |
a0d0e21e | 428 | | '[' expr ']' %prec '(' |
79072805 LW |
429 | { $$ = newANONLIST($2); } |
430 | | '[' ']' %prec '(' | |
431 | { $$ = newANONLIST(Nullop); } | |
a0d0e21e | 432 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
433 | { $$ = newANONHASH($2); } |
434 | | HASHBRACK ';' '}' %prec '(' | |
435 | { $$ = newANONHASH(Nullop); } | |
28757baa | 436 | | ANONSUB startanonsub proto block %prec '(' |
4633a7c4 | 437 | { $$ = newANONSUB($2, $3, $4); } |
79072805 | 438 | | scalar %prec '(' |
8d063cd8 | 439 | { $$ = $1; } |
c07a80fd | 440 | | star '{' expr ';' '}' |
441 | { $$ = newBINOP(OP_GELEM, 0, newGVREF(0,$1), $3); } | |
79072805 | 442 | | star %prec '(' |
8d063cd8 | 443 | { $$ = $1; } |
79072805 LW |
444 | | scalar '[' expr ']' %prec '(' |
445 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
446 | | term ARROW '[' expr ']' %prec '(' | |
447 | { $$ = newBINOP(OP_AELEM, 0, | |
8990e307 | 448 | ref(newAVREF($1),OP_RV2AV), |
79072805 | 449 | scalar($4));} |
463ee0b2 | 450 | | term '[' expr ']' %prec '(' |
a0d0e21e | 451 | { assertref($1); $$ = newBINOP(OP_AELEM, 0, |
8990e307 | 452 | ref(newAVREF($1),OP_RV2AV), |
463ee0b2 | 453 | scalar($3));} |
79072805 | 454 | | hsh %prec '(' |
8d063cd8 | 455 | { $$ = $1; } |
79072805 | 456 | | ary %prec '(' |
8d063cd8 | 457 | { $$ = $1; } |
79072805 LW |
458 | | arylen %prec '(' |
459 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
460 | | scalar '{' expr ';' '}' %prec '(' | |
461 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
462 | expect = XOPERATOR; } | |
463 | | term ARROW '{' expr ';' '}' %prec '(' | |
464 | { $$ = newBINOP(OP_HELEM, 0, | |
8990e307 | 465 | ref(newHVREF($1),OP_RV2HV), |
79072805 LW |
466 | jmaybe($4)); |
467 | expect = XOPERATOR; } | |
463ee0b2 | 468 | | term '{' expr ';' '}' %prec '(' |
a0d0e21e | 469 | { assertref($1); $$ = newBINOP(OP_HELEM, 0, |
8990e307 | 470 | ref(newHVREF($1),OP_RV2HV), |
463ee0b2 LW |
471 | jmaybe($3)); |
472 | expect = XOPERATOR; } | |
a0d0e21e | 473 | | '(' expr ')' '[' expr ']' %prec '(' |
79072805 LW |
474 | { $$ = newSLICEOP(0, $5, $2); } |
475 | | '(' ')' '[' expr ']' %prec '(' | |
476 | { $$ = newSLICEOP(0, $4, Nullop); } | |
477 | | ary '[' expr ']' %prec '(' | |
478 | { $$ = prepend_elem(OP_ASLICE, | |
479 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
480 | newLISTOP(OP_ASLICE, 0, |
481 | list($3), | |
a0d0e21e | 482 | ref($1, OP_ASLICE))); } |
79072805 LW |
483 | | ary '{' expr ';' '}' %prec '(' |
484 | { $$ = prepend_elem(OP_HSLICE, | |
485 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
486 | newLISTOP(OP_HSLICE, 0, |
487 | list($3), | |
a0d0e21e | 488 | ref(oopsHV($1), OP_HSLICE))); |
79072805 LW |
489 | expect = XOPERATOR; } |
490 | | THING %prec '(' | |
491 | { $$ = $1; } | |
492 | | amper | |
c07a80fd | 493 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 494 | | amper '(' ')' |
a0d0e21e LW |
495 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
496 | | amper '(' expr ')' | |
497 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 498 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 499 | | NOAMP WORD listexpr |
a0d0e21e | 500 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 501 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 502 | | DO term %prec UNIOP |
463ee0b2 | 503 | { $$ = newUNOP(OP_DOFILE, 0, scalar($2)); } |
79072805 LW |
504 | | DO block %prec '(' |
505 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 506 | | DO WORD '(' ')' |
c07a80fd | 507 | { $$ = newUNOP(OP_ENTERSUB, |
508 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 509 | prepend_elem(OP_LIST, |
c07a80fd | 510 | scalar(newCVREF( |
511 | (OPpENTERSUB_AMPER<<8), | |
512 | scalar($2) | |
513 | )),Nullop)); dep();} | |
a0d0e21e | 514 | | DO WORD '(' expr ')' |
c07a80fd | 515 | { $$ = newUNOP(OP_ENTERSUB, |
516 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 517 | append_elem(OP_LIST, |
a0d0e21e | 518 | $4, |
c07a80fd | 519 | scalar(newCVREF( |
520 | (OPpENTERSUB_AMPER<<8), | |
521 | scalar($2) | |
522 | )))); dep();} | |
79072805 | 523 | | DO scalar '(' ')' |
a0d0e21e | 524 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 525 | prepend_elem(OP_LIST, |
c07a80fd | 526 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
527 | | DO scalar '(' expr ')' |
528 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 529 | prepend_elem(OP_LIST, |
a0d0e21e | 530 | $4, |
c07a80fd | 531 | scalar(newCVREF(0,scalar($2))))); dep();} |
8d063cd8 | 532 | | LOOPEX |
85e6fe83 LW |
533 | { $$ = newOP($1, OPf_SPECIAL); |
534 | hints |= HINT_BLOCK_SCOPE; } | |
a0d0e21e | 535 | | LOOPEX term |
8990e307 | 536 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 537 | | NOTOP argexpr |
538 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 539 | | UNIOP |
79072805 | 540 | { $$ = newOP($1, 0); } |
f0fcb552 | 541 | | UNIOP block |
79072805 | 542 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 543 | | UNIOP term |
79072805 | 544 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
545 | | UNIOPSUB term |
546 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
547 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 548 | | FUNC0 |
79072805 | 549 | { $$ = newOP($1, 0); } |
ae986130 | 550 | | FUNC0 '(' ')' |
79072805 | 551 | { $$ = newOP($1, 0); } |
4633a7c4 | 552 | | FUNC0SUB |
28757baa | 553 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 554 | scalar($1)); } |
03a14243 | 555 | | FUNC1 '(' ')' |
79072805 | 556 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 557 | | FUNC1 '(' expr ')' |
79072805 | 558 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 559 | | PMFUNC '(' term ')' |
79072805 | 560 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 561 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
562 | { $$ = pmruntime($1, $3, $5); } |
563 | | WORD | |
378cc40b | 564 | | listop |
8d063cd8 LW |
565 | ; |
566 | ||
79072805 | 567 | listexpr: /* NULL */ |
8990e307 | 568 | { $$ = Nullop; } |
a0d0e21e LW |
569 | | argexpr |
570 | { $$ = $1; } | |
571 | ; | |
572 | ||
573 | listexprcom: /* NULL */ | |
574 | { $$ = Nullop; } | |
79072805 LW |
575 | | expr |
576 | { $$ = $1; } | |
a0d0e21e LW |
577 | | expr ',' |
578 | { $$ = $1; } | |
79072805 LW |
579 | ; |
580 | ||
55497cff | 581 | local : LOCAL { $$ = 0; } |
582 | | MY { $$ = 1; } | |
583 | ; | |
584 | ||
585 | my_scalar: scalar | |
586 | { in_my = 0; $$ = my($1); } | |
587 | ; | |
588 | ||
79072805 | 589 | amper : '&' indirob |
c07a80fd | 590 | { $$ = newCVREF($1,$2); } |
a687059c LW |
591 | ; |
592 | ||
79072805 LW |
593 | scalar : '$' indirob |
594 | { $$ = newSVREF($2); } | |
a687059c LW |
595 | ; |
596 | ||
79072805 LW |
597 | ary : '@' indirob |
598 | { $$ = newAVREF($2); } | |
599 | ; | |
600 | ||
601 | hsh : '%' indirob | |
602 | { $$ = newHVREF($2); } | |
603 | ; | |
604 | ||
605 | arylen : DOLSHARP indirob | |
606 | { $$ = newAVREF($2); } | |
607 | ; | |
608 | ||
609 | star : '*' indirob | |
a0d0e21e | 610 | { $$ = newGVREF(0,$2); } |
79072805 LW |
611 | ; |
612 | ||
613 | indirob : WORD | |
614 | { $$ = scalar($1); } | |
615 | | scalar | |
463ee0b2 | 616 | { $$ = scalar($1); } |
79072805 | 617 | | block |
a0d0e21e | 618 | { $$ = scope($1); } |
79072805 | 619 | |
93a17b20 LW |
620 | | PRIVATEREF |
621 | { $$ = $1; } | |
8d063cd8 LW |
622 | ; |
623 | ||
624 | %% /* PROGRAM */ |