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 | ||
f0fcb552 LW |
46 | %token <ival> '{' ')' |
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 |
a0d0e21e | 62 | %type <opval> expr term 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 | |
a0d0e21e | 68 | %left <ival> OROP |
463ee0b2 | 69 | %left ANDOP |
c07a80fd | 70 | %right NOTOP |
36477c24 | 71 | %nonassoc LSTOP LSTOPSUB |
8d063cd8 | 72 | %left ',' |
a0d0e21e | 73 | %right <ival> ASSIGNOP |
8d063cd8 LW |
74 | %right '?' ':' |
75 | %nonassoc DOTDOT | |
76 | %left OROR | |
77 | %left ANDAND | |
79072805 LW |
78 | %left <ival> BITOROP |
79 | %left <ival> BITANDOP | |
a687059c LW |
80 | %nonassoc EQOP |
81 | %nonassoc RELOP | |
36477c24 | 82 | %nonassoc UNIOP UNIOPSUB |
79072805 | 83 | %left <ival> SHIFTOP |
a687059c LW |
84 | %left ADDOP |
85 | %left MULOP | |
8990e307 | 86 | %left <ival> MATCHOP |
79072805 LW |
87 | %right '!' '~' UMINUS REFGEN |
88 | %right <ival> POWOP | |
89 | %nonassoc PREINC PREDEC POSTINC POSTDEC | |
8990e307 | 90 | %left ARROW |
8d063cd8 LW |
91 | %left '(' |
92 | ||
93 | %% /* RULES */ | |
94 | ||
ae986130 LW |
95 | prog : /* NULL */ |
96 | { | |
97 | #if defined(YYDEBUG) && defined(DEBUGGING) | |
3280af22 | 98 | yydebug = (PL_debug & 1); |
ae986130 | 99 | #endif |
3280af22 | 100 | PL_expect = XSTATE; |
ae986130 LW |
101 | } |
102 | /*CONTINUED*/ lineseq | |
a0d0e21e | 103 | { newPROG($2); } |
8d063cd8 LW |
104 | ; |
105 | ||
a687059c | 106 | block : '{' remember lineseq '}' |
3280af22 NIS |
107 | { if (PL_copline > (line_t)$1) |
108 | PL_copline = $1; | |
36477c24 | 109 | $$ = block_end($2, $3); } |
a0d0e21e LW |
110 | ; |
111 | ||
55497cff | 112 | remember: /* NULL */ /* start a full lexical scope */ |
113 | { $$ = block_start(TRUE); } | |
114 | ; | |
115 | ||
bbce6d69 | 116 | mblock : '{' mremember lineseq '}' |
3280af22 NIS |
117 | { if (PL_copline > (line_t)$1) |
118 | PL_copline = $1; | |
36477c24 | 119 | $$ = block_end($2, $3); } |
55497cff | 120 | ; |
121 | ||
122 | mremember: /* NULL */ /* start a partial lexical scope */ | |
123 | { $$ = block_start(FALSE); } | |
8d063cd8 LW |
124 | ; |
125 | ||
126 | lineseq : /* NULL */ | |
79072805 LW |
127 | { $$ = Nullop; } |
128 | | lineseq decl | |
129 | { $$ = $1; } | |
8d063cd8 | 130 | | lineseq line |
463ee0b2 | 131 | { $$ = append_list(OP_LINESEQ, |
a0d0e21e | 132 | (LISTOP*)$1, (LISTOP*)$2); |
3280af22 NIS |
133 | PL_pad_reset_pending = TRUE; |
134 | if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; } | |
8d063cd8 LW |
135 | ; |
136 | ||
79072805 LW |
137 | line : label cond |
138 | { $$ = newSTATEOP(0, $1, $2); } | |
8d063cd8 LW |
139 | | loop /* loops add their own labels */ |
140 | | label ';' | |
141 | { if ($1 != Nullch) { | |
79072805 | 142 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 LW |
143 | } |
144 | else { | |
79072805 | 145 | $$ = Nullop; |
3280af22 | 146 | PL_copline = NOLINE; |
32c2e4fb | 147 | } |
3280af22 | 148 | PL_expect = XSTATE; } |
8d063cd8 | 149 | | label sideff ';' |
79072805 | 150 | { $$ = newSTATEOP(0, $1, $2); |
3280af22 | 151 | PL_expect = XSTATE; } |
8d063cd8 LW |
152 | ; |
153 | ||
a687059c | 154 | sideff : error |
79072805 | 155 | { $$ = Nullop; } |
a687059c | 156 | | expr |
79072805 | 157 | { $$ = $1; } |
a687059c | 158 | | expr IF expr |
79072805 | 159 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
a687059c | 160 | | expr UNLESS expr |
79072805 | 161 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
a687059c | 162 | | expr WHILE expr |
8990e307 | 163 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
55497cff | 164 | | expr UNTIL iexpr |
165 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} | |
ecca16b0 CS |
166 | | expr FOR expr |
167 | { $$ = newFOROP(0, Nullch, $2, | |
168 | Nullop, $3, $1, Nullop); } | |
79072805 LW |
169 | ; |
170 | ||
171 | else : /* NULL */ | |
172 | { $$ = Nullop; } | |
55497cff | 173 | | ELSE mblock |
79072805 | 174 | { $$ = scope($2); } |
55497cff | 175 | | ELSIF '(' mexpr ')' mblock else |
3280af22 | 176 | { PL_copline = $1; |
2c15bef3 | 177 | $$ = newCONDOP(0, $3, scope($5), $6); |
3280af22 | 178 | PL_hints |= HINT_BLOCK_SCOPE; } |
79072805 LW |
179 | ; |
180 | ||
55497cff | 181 | cond : IF '(' remember mexpr ')' mblock else |
3280af22 | 182 | { PL_copline = $1; |
36477c24 | 183 | $$ = block_end($3, |
bbce6d69 | 184 | newCONDOP(0, $4, scope($6), $7)); } |
55497cff | 185 | | UNLESS '(' remember miexpr ')' mblock else |
3280af22 | 186 | { PL_copline = $1; |
36477c24 | 187 | $$ = block_end($3, |
bbce6d69 | 188 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 LW |
189 | ; |
190 | ||
191 | cont : /* NULL */ | |
192 | { $$ = Nullop; } | |
193 | | CONTINUE block | |
194 | { $$ = scope($2); } | |
195 | ; | |
196 | ||
55497cff | 197 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
3280af22 | 198 | { PL_copline = $2; |
36477c24 | 199 | $$ = block_end($4, |
55497cff | 200 | newSTATEOP(0, $1, |
bbce6d69 | 201 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 202 | $2, $5, $7, $8))); } |
55497cff | 203 | | label UNTIL '(' remember miexpr ')' mblock cont |
3280af22 | 204 | { PL_copline = $2; |
36477c24 | 205 | $$ = block_end($4, |
55497cff | 206 | newSTATEOP(0, $1, |
bbce6d69 | 207 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a | 208 | $2, $5, $7, $8))); } |
bbce6d69 | 209 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 | 210 | { $$ = block_end($4, |
bbce6d69 | 211 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
212 | | label FOR scalar '(' remember mexpr ')' mblock cont | |
36477c24 | 213 | { $$ = block_end($5, |
bbce6d69 | 214 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
215 | $6, $8, $9)); } | |
216 | | label FOR '(' remember mexpr ')' mblock cont | |
36477c24 | 217 | { $$ = block_end($4, |
55497cff | 218 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 | 219 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 | 220 | /* basically fake up an initialize-while lineseq */ |
fb73857a | 221 | { OP *forop = append_elem(OP_LINESEQ, |
222 | scalar($5), | |
223 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
224 | $2, scalar($7), | |
225 | $11, scalar($9))); | |
3280af22 | 226 | PL_copline = $2; |
fb73857a | 227 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } |
79072805 | 228 | | label block cont /* a block is a loop that happens once */ |
fb73857a | 229 | { $$ = newSTATEOP(0, $1, |
230 | newWHILEOP(0, 1, (LOOP*)Nullop, | |
231 | NOLINE, Nullop, $2, $3)); } | |
8d063cd8 LW |
232 | ; |
233 | ||
234 | nexpr : /* NULL */ | |
79072805 | 235 | { $$ = Nullop; } |
8d063cd8 LW |
236 | | sideff |
237 | ; | |
238 | ||
239 | texpr : /* NULL means true */ | |
79072805 | 240 | { (void)scan_num("1"); $$ = yylval.opval; } |
8d063cd8 LW |
241 | | expr |
242 | ; | |
243 | ||
55497cff | 244 | iexpr : expr |
245 | { $$ = invert(scalar($1)); } | |
246 | ; | |
247 | ||
248 | mexpr : expr | |
bbce6d69 | 249 | { $$ = $1; intro_my(); } |
250 | ; | |
251 | ||
252 | mnexpr : nexpr | |
253 | { $$ = $1; intro_my(); } | |
55497cff | 254 | ; |
255 | ||
256 | mtexpr : texpr | |
bbce6d69 | 257 | { $$ = $1; intro_my(); } |
55497cff | 258 | ; |
259 | ||
260 | miexpr : iexpr | |
bbce6d69 | 261 | { $$ = $1; intro_my(); } |
55497cff | 262 | ; |
263 | ||
8d063cd8 LW |
264 | label : /* empty */ |
265 | { $$ = Nullch; } | |
32c2e4fb | 266 | | LABEL |
8d063cd8 LW |
267 | ; |
268 | ||
8d063cd8 LW |
269 | decl : format |
270 | { $$ = 0; } | |
271 | | subrout | |
272 | { $$ = 0; } | |
a687059c LW |
273 | | package |
274 | { $$ = 0; } | |
a0d0e21e | 275 | | use |
85e6fe83 | 276 | { $$ = 0; } |
8d063cd8 LW |
277 | ; |
278 | ||
44a8e56a | 279 | format : FORMAT startformsub formname block |
a0d0e21e | 280 | { newFORM($2, $3, $4); } |
44a8e56a | 281 | ; |
282 | ||
283 | formname: WORD { $$ = $1; } | |
284 | | /* NULL */ { $$ = Nullop; } | |
8d063cd8 LW |
285 | ; |
286 | ||
28757baa | 287 | subrout : SUB startsub subname proto subbody |
4633a7c4 | 288 | { newSUB($2, $3, $4, $5); } |
28757baa | 289 | ; |
290 | ||
fa83b5b6 | 291 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b | 292 | { $$ = start_subparse(FALSE, 0); } |
28757baa | 293 | ; |
294 | ||
295 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ | |
774d564b | 296 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa | 297 | ; |
298 | ||
44a8e56a | 299 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b | 300 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a | 301 | ; |
302 | ||
2d8e6c8d | 303 | subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a); |
e858de61 | 304 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
7d07dbc2 | 305 | || strEQ(name, "INIT")) |
1aff0e91 | 306 | CvSPECIAL_on(PL_compcv); |
28757baa | 307 | $$ = $1; } |
a0d0e21e LW |
308 | ; |
309 | ||
4633a7c4 LW |
310 | proto : /* NULL */ |
311 | { $$ = Nullop; } | |
312 | | THING | |
313 | ; | |
28757baa | 314 | |
315 | subbody : block { $$ = $1; } | |
3280af22 | 316 | | ';' { $$ = Nullop; PL_expect = XSTATE; } |
8d063cd8 LW |
317 | ; |
318 | ||
a687059c | 319 | package : PACKAGE WORD ';' |
79072805 | 320 | { package($2); } |
93a17b20 LW |
321 | | PACKAGE ';' |
322 | { package(Nullop); } | |
a687059c LW |
323 | ; |
324 | ||
28757baa | 325 | use : USE startsub |
1aff0e91 | 326 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa | 327 | WORD WORD listexpr ';' |
328 | { utilize($1, $2, $4, $5, $6); } | |
85e6fe83 LW |
329 | ; |
330 | ||
a0d0e21e LW |
331 | expr : expr ANDOP expr |
332 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } | |
333 | | expr OROP expr | |
334 | { $$ = newLOGOP($2, 0, $1, $3); } | |
a0d0e21e LW |
335 | | argexpr |
336 | ; | |
337 | ||
338 | argexpr : argexpr ',' | |
339 | { $$ = $1; } | |
340 | | argexpr ',' term | |
79072805 | 341 | { $$ = append_elem(OP_LIST, $1, $3); } |
a0d0e21e | 342 | | term |
8d063cd8 LW |
343 | ; |
344 | ||
a0d0e21e | 345 | listop : LSTOP indirob argexpr |
79072805 | 346 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
347 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
348 | | FUNC '(' indirob expr ')' | |
79072805 | 349 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e LW |
350 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
351 | | term ARROW method '(' listexprcom ')' | |
4633a7c4 | 352 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 353 | append_elem(OP_LIST, |
55497cff | 354 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e | 355 | newUNOP(OP_METHOD, 0, $3))); } |
b1524f17 SM |
356 | | term ARROW method |
357 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, | |
358 | append_elem(OP_LIST, scalar($1), | |
359 | newUNOP(OP_METHOD, 0, $3))); } | |
79072805 | 360 | | METHOD indirob listexpr |
4633a7c4 | 361 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 362 | append_elem(OP_LIST, |
4633a7c4 | 363 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e LW |
364 | newUNOP(OP_METHOD, 0, $1))); } |
365 | | FUNCMETH indirob '(' listexprcom ')' | |
4633a7c4 | 366 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e | 367 | append_elem(OP_LIST, |
4633a7c4 | 368 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e | 369 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 LW |
370 | | LSTOP listexpr |
371 | { $$ = convert($1, 0, $2); } | |
a0d0e21e | 372 | | FUNC '(' listexprcom ')' |
79072805 | 373 | { $$ = convert($1, 0, $3); } |
28757baa | 374 | | LSTOPSUB startanonsub block |
375 | { $3 = newANONSUB($2, 0, $3); } | |
376 | listexpr %prec LSTOP | |
4633a7c4 | 377 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa | 378 | append_elem(OP_LIST, |
379 | prepend_elem(OP_LIST, $3, $5), $1)); } | |
a687059c LW |
380 | ; |
381 | ||
a0d0e21e LW |
382 | method : METHOD |
383 | | scalar | |
384 | ; | |
385 | ||
386 | term : term ASSIGNOP term | |
387 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } | |
388 | | term POWOP term | |
79072805 | 389 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 390 | | term MULOP term |
79072805 LW |
391 | { if ($2 != OP_REPEAT) |
392 | scalar($1); | |
393 | $$ = newBINOP($2, 0, $1, scalar($3)); } | |
a0d0e21e | 394 | | term ADDOP term |
79072805 | 395 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 396 | | term SHIFTOP term |
79072805 | 397 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 398 | | term RELOP term |
79072805 | 399 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 400 | | term EQOP term |
79072805 | 401 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 402 | | term BITANDOP term |
79072805 | 403 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 404 | | term BITOROP term |
79072805 | 405 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e | 406 | | term DOTDOT term |
79072805 | 407 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e | 408 | | term ANDAND term |
463ee0b2 | 409 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e | 410 | | term OROR term |
463ee0b2 | 411 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e | 412 | | term '?' term ':' term |
79072805 | 413 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e | 414 | | term MATCHOP term |
79072805 | 415 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 | 416 | |
a0d0e21e | 417 | | '-' term %prec UMINUS |
79072805 | 418 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c LW |
419 | | '+' term %prec UMINUS |
420 | { $$ = $2; } | |
8d063cd8 | 421 | | '!' term |
79072805 | 422 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 | 423 | | '~' term |
79072805 LW |
424 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
425 | | REFGEN term | |
a0d0e21e | 426 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 LW |
427 | | term POSTINC |
428 | { $$ = newUNOP(OP_POSTINC, 0, | |
463ee0b2 | 429 | mod(scalar($1), OP_POSTINC)); } |
79072805 LW |
430 | | term POSTDEC |
431 | { $$ = newUNOP(OP_POSTDEC, 0, | |
463ee0b2 | 432 | mod(scalar($1), OP_POSTDEC)); } |
79072805 LW |
433 | | PREINC term |
434 | { $$ = newUNOP(OP_PREINC, 0, | |
463ee0b2 | 435 | mod(scalar($2), OP_PREINC)); } |
79072805 LW |
436 | | PREDEC term |
437 | { $$ = newUNOP(OP_PREDEC, 0, | |
463ee0b2 | 438 | mod(scalar($2), OP_PREDEC)); } |
55497cff | 439 | | local term %prec UNIOP |
93a17b20 | 440 | { $$ = localize($2,$1); } |
a0d0e21e | 441 | | '(' expr ')' |
79072805 | 442 | { $$ = sawparens($2); } |
8d063cd8 | 443 | | '(' ')' |
8990e307 | 444 | { $$ = sawparens(newNULLLIST()); } |
a0d0e21e | 445 | | '[' expr ']' %prec '(' |
79072805 LW |
446 | { $$ = newANONLIST($2); } |
447 | | '[' ']' %prec '(' | |
448 | { $$ = newANONLIST(Nullop); } | |
a0d0e21e | 449 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 LW |
450 | { $$ = newANONHASH($2); } |
451 | | HASHBRACK ';' '}' %prec '(' | |
452 | { $$ = newANONHASH(Nullop); } | |
28757baa | 453 | | ANONSUB startanonsub proto block %prec '(' |
4633a7c4 | 454 | { $$ = newANONSUB($2, $3, $4); } |
79072805 | 455 | | scalar %prec '(' |
8d063cd8 | 456 | { $$ = $1; } |
c07a80fd | 457 | | star '{' expr ';' '}' |
640b9ef6 | 458 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
79072805 | 459 | | star %prec '(' |
8d063cd8 | 460 | { $$ = $1; } |
79072805 LW |
461 | | scalar '[' expr ']' %prec '(' |
462 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } | |
463 | | term ARROW '[' expr ']' %prec '(' | |
464 | { $$ = newBINOP(OP_AELEM, 0, | |
8990e307 | 465 | ref(newAVREF($1),OP_RV2AV), |
79072805 | 466 | scalar($4));} |
463ee0b2 | 467 | | term '[' expr ']' %prec '(' |
a0d0e21e | 468 | { assertref($1); $$ = newBINOP(OP_AELEM, 0, |
8990e307 | 469 | ref(newAVREF($1),OP_RV2AV), |
463ee0b2 | 470 | scalar($3));} |
79072805 | 471 | | hsh %prec '(' |
8d063cd8 | 472 | { $$ = $1; } |
79072805 | 473 | | ary %prec '(' |
8d063cd8 | 474 | { $$ = $1; } |
79072805 LW |
475 | | arylen %prec '(' |
476 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} | |
477 | | scalar '{' expr ';' '}' %prec '(' | |
478 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); | |
3280af22 | 479 | PL_expect = XOPERATOR; } |
79072805 LW |
480 | | term ARROW '{' expr ';' '}' %prec '(' |
481 | { $$ = newBINOP(OP_HELEM, 0, | |
8990e307 | 482 | ref(newHVREF($1),OP_RV2HV), |
79072805 | 483 | jmaybe($4)); |
3280af22 | 484 | PL_expect = XOPERATOR; } |
463ee0b2 | 485 | | term '{' expr ';' '}' %prec '(' |
a0d0e21e | 486 | { assertref($1); $$ = newBINOP(OP_HELEM, 0, |
8990e307 | 487 | ref(newHVREF($1),OP_RV2HV), |
463ee0b2 | 488 | jmaybe($3)); |
3280af22 | 489 | PL_expect = XOPERATOR; } |
a0d0e21e | 490 | | '(' expr ')' '[' expr ']' %prec '(' |
79072805 LW |
491 | { $$ = newSLICEOP(0, $5, $2); } |
492 | | '(' ')' '[' expr ']' %prec '(' | |
493 | { $$ = newSLICEOP(0, $4, Nullop); } | |
494 | | ary '[' expr ']' %prec '(' | |
495 | { $$ = prepend_elem(OP_ASLICE, | |
496 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
497 | newLISTOP(OP_ASLICE, 0, |
498 | list($3), | |
a0d0e21e | 499 | ref($1, OP_ASLICE))); } |
79072805 LW |
500 | | ary '{' expr ';' '}' %prec '(' |
501 | { $$ = prepend_elem(OP_HSLICE, | |
502 | newOP(OP_PUSHMARK, 0), | |
79072805 LW |
503 | newLISTOP(OP_HSLICE, 0, |
504 | list($3), | |
a0d0e21e | 505 | ref(oopsHV($1), OP_HSLICE))); |
3280af22 | 506 | PL_expect = XOPERATOR; } |
79072805 LW |
507 | | THING %prec '(' |
508 | { $$ = $1; } | |
509 | | amper | |
c07a80fd | 510 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 | 511 | | amper '(' ')' |
a0d0e21e LW |
512 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
513 | | amper '(' expr ')' | |
514 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
4633a7c4 | 515 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 | 516 | | NOAMP WORD listexpr |
a0d0e21e | 517 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 | 518 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e | 519 | | DO term %prec UNIOP |
78ca652e | 520 | { $$ = dofile($2); } |
79072805 LW |
521 | | DO block %prec '(' |
522 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } | |
8d063cd8 | 523 | | DO WORD '(' ')' |
c07a80fd | 524 | { $$ = newUNOP(OP_ENTERSUB, |
525 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 526 | prepend_elem(OP_LIST, |
c07a80fd | 527 | scalar(newCVREF( |
528 | (OPpENTERSUB_AMPER<<8), | |
529 | scalar($2) | |
530 | )),Nullop)); dep();} | |
a0d0e21e | 531 | | DO WORD '(' expr ')' |
c07a80fd | 532 | { $$ = newUNOP(OP_ENTERSUB, |
533 | OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 534 | append_elem(OP_LIST, |
a0d0e21e | 535 | $4, |
c07a80fd | 536 | scalar(newCVREF( |
537 | (OPpENTERSUB_AMPER<<8), | |
538 | scalar($2) | |
539 | )))); dep();} | |
79072805 | 540 | | DO scalar '(' ')' |
a0d0e21e | 541 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 | 542 | prepend_elem(OP_LIST, |
c07a80fd | 543 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e LW |
544 | | DO scalar '(' expr ')' |
545 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, | |
4633a7c4 | 546 | prepend_elem(OP_LIST, |
a0d0e21e | 547 | $4, |
c07a80fd | 548 | scalar(newCVREF(0,scalar($2))))); dep();} |
6da72b64 CS |
549 | | term ARROW '(' ')' %prec '(' |
550 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
551 | newCVREF(0, scalar($1))); } | |
552 | | term ARROW '(' expr ')' %prec '(' | |
553 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
554 | append_elem(OP_LIST, $4, | |
555 | newCVREF(0, scalar($1)))); } | |
8d063cd8 | 556 | | LOOPEX |
85e6fe83 | 557 | { $$ = newOP($1, OPf_SPECIAL); |
3280af22 | 558 | PL_hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e | 559 | | LOOPEX term |
8990e307 | 560 | { $$ = newLOOPEX($1,$2); } |
c07a80fd | 561 | | NOTOP argexpr |
562 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } | |
8d063cd8 | 563 | | UNIOP |
79072805 | 564 | { $$ = newOP($1, 0); } |
f0fcb552 | 565 | | UNIOP block |
79072805 | 566 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e | 567 | | UNIOP term |
79072805 | 568 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 LW |
569 | | UNIOPSUB term |
570 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, | |
571 | append_elem(OP_LIST, $2, scalar($1))); } | |
8d063cd8 | 572 | | FUNC0 |
79072805 | 573 | { $$ = newOP($1, 0); } |
ae986130 | 574 | | FUNC0 '(' ')' |
79072805 | 575 | { $$ = newOP($1, 0); } |
4633a7c4 | 576 | | FUNC0SUB |
28757baa | 577 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 | 578 | scalar($1)); } |
03a14243 | 579 | | FUNC1 '(' ')' |
79072805 | 580 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 | 581 | | FUNC1 '(' expr ')' |
79072805 | 582 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e | 583 | | PMFUNC '(' term ')' |
79072805 | 584 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e | 585 | | PMFUNC '(' term ',' term ')' |
79072805 LW |
586 | { $$ = pmruntime($1, $3, $5); } |
587 | | WORD | |
378cc40b | 588 | | listop |
8d063cd8 LW |
589 | ; |
590 | ||
79072805 | 591 | listexpr: /* NULL */ |
8990e307 | 592 | { $$ = Nullop; } |
a0d0e21e LW |
593 | | argexpr |
594 | { $$ = $1; } | |
595 | ; | |
596 | ||
597 | listexprcom: /* NULL */ | |
598 | { $$ = Nullop; } | |
79072805 LW |
599 | | expr |
600 | { $$ = $1; } | |
a0d0e21e LW |
601 | | expr ',' |
602 | { $$ = $1; } | |
79072805 LW |
603 | ; |
604 | ||
55497cff | 605 | local : LOCAL { $$ = 0; } |
606 | | MY { $$ = 1; } | |
607 | ; | |
608 | ||
609 | my_scalar: scalar | |
3280af22 | 610 | { PL_in_my = 0; $$ = my($1); } |
55497cff | 611 | ; |
612 | ||
79072805 | 613 | amper : '&' indirob |
c07a80fd | 614 | { $$ = newCVREF($1,$2); } |
a687059c LW |
615 | ; |
616 | ||
79072805 LW |
617 | scalar : '$' indirob |
618 | { $$ = newSVREF($2); } | |
a687059c LW |
619 | ; |
620 | ||
79072805 LW |
621 | ary : '@' indirob |
622 | { $$ = newAVREF($2); } | |
623 | ; | |
624 | ||
625 | hsh : '%' indirob | |
626 | { $$ = newHVREF($2); } | |
627 | ; | |
628 | ||
629 | arylen : DOLSHARP indirob | |
630 | { $$ = newAVREF($2); } | |
631 | ; | |
632 | ||
633 | star : '*' indirob | |
a0d0e21e | 634 | { $$ = newGVREF(0,$2); } |
79072805 LW |
635 | ; |
636 | ||
637 | indirob : WORD | |
638 | { $$ = scalar($1); } | |
639 | | scalar | |
463ee0b2 | 640 | { $$ = scalar($1); } |
79072805 | 641 | | block |
a0d0e21e | 642 | { $$ = scope($1); } |
79072805 | 643 | |
93a17b20 LW |
644 | | PRIVATEREF |
645 | { $$ = $1; } | |
8d063cd8 LW |
646 | ; |
647 | ||
648 | %% /* PROGRAM */ |