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1 | /* perly.y |
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2 | * |
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3 | * Copyright (c) 1991-1997, Larry Wall |
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4 | * |
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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. |
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7 | * |
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8 | */ |
9 | |
10 | /* |
11 | * 'I see,' laughed Strider. 'I look foul and feel fair. Is that it? |
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12 | * All that is gold does not glitter, not all those who wander are lost.' |
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13 | */ |
14 | |
15 | %{ |
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16 | #include "EXTERN.h" |
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17 | #define PERL_IN_PERLY_C |
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18 | #include "perl.h" |
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19 | |
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20 | #define dep() deprecate("\"do\" to call subroutines") |
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21 | |
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22 | /* stuff included here to make perly_c.diff apply better */ |
23 | |
24 | #define yydebug PL_yydebug |
25 | #define yynerrs PL_yynerrs |
26 | #define yyerrflag PL_yyerrflag |
27 | #define yychar PL_yychar |
28 | #define yyval PL_yyval |
29 | #define yylval PL_yylval |
30 | |
31 | struct ysv { |
32 | short* yyss; |
33 | YYSTYPE* yyvs; |
34 | int oldyydebug; |
35 | int oldyynerrs; |
36 | int oldyyerrflag; |
37 | int oldyychar; |
38 | YYSTYPE oldyyval; |
39 | YYSTYPE oldyylval; |
40 | }; |
41 | |
c76ac1ee |
42 | static void yydestruct(void *ptr); |
43 | |
44 | static void |
45 | yydestruct(void *ptr) |
46 | { |
47 | struct ysv* ysave = (struct ysv*)ptr; |
48 | if (ysave->yyss) Safefree(ysave->yyss); |
49 | if (ysave->yyvs) Safefree(ysave->yyvs); |
50 | yydebug = ysave->oldyydebug; |
51 | yynerrs = ysave->oldyynerrs; |
52 | yyerrflag = ysave->oldyyerrflag; |
53 | yychar = ysave->oldyychar; |
54 | yyval = ysave->oldyyval; |
55 | yylval = ysave->oldyylval; |
56 | Safefree(ysave); |
57 | } |
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58 | |
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59 | %} |
60 | |
61 | %start prog |
62 | |
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63 | %{ |
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64 | #if 0 /* get this from perly.h instead */ |
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65 | %} |
66 | |
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67 | %union { |
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68 | I32 ival; |
69 | char *pval; |
70 | OP *opval; |
71 | GV *gvval; |
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72 | } |
73 | |
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74 | %{ |
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75 | #endif /* 0 */ |
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76 | |
77 | #ifdef USE_PURE_BISON |
78 | #define YYLEX_PARAM (&yychar) |
79 | #endif |
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80 | |
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81 | %} |
82 | |
fad39ff1 |
83 | %token <ival> '{' |
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84 | |
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85 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
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86 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
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87 | %token <pval> LABEL |
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88 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
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89 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
90 | %token <ival> LOOPEX DOTDOT |
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91 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
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92 | %token <ival> RELOP EQOP MULOP ADDOP |
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93 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
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94 | %token <ival> LOCAL MY MYSUB |
95 | %token COLONATTR |
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96 | |
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97 | %type <ival> prog decl format startsub startanonsub startformsub |
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98 | %type <ival> remember mremember '&' |
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99 | %type <opval> block mblock lineseq line loop cond else |
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100 | %type <opval> expr term subscripted scalar ary hsh arylen star amper sideff |
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101 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
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102 | %type <opval> listexpr listexprcom indirob listop method |
103 | %type <opval> formname subname proto subbody cont my_scalar |
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104 | %type <opval> subattrlist myattrlist mysubrout myattrterm myterm |
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105 | %type <pval> label |
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106 | |
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107 | %nonassoc PREC_LOW |
108 | %nonassoc LOOPEX |
109 | |
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110 | %left <ival> OROP |
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111 | %left ANDOP |
c07a80fd |
112 | %right NOTOP |
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113 | %nonassoc LSTOP LSTOPSUB |
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114 | %left ',' |
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115 | %right <ival> ASSIGNOP |
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116 | %right '?' ':' |
117 | %nonassoc DOTDOT |
118 | %left OROR |
119 | %left ANDAND |
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120 | %left <ival> BITOROP |
121 | %left <ival> BITANDOP |
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122 | %nonassoc EQOP |
123 | %nonassoc RELOP |
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124 | %nonassoc UNIOP UNIOPSUB |
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125 | %left <ival> SHIFTOP |
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126 | %left ADDOP |
127 | %left MULOP |
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128 | %left <ival> MATCHOP |
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129 | %right '!' '~' UMINUS REFGEN |
130 | %right <ival> POWOP |
131 | %nonassoc PREINC PREDEC POSTINC POSTDEC |
8990e307 |
132 | %left ARROW |
fad39ff1 |
133 | %nonassoc <ival> ')' |
8d063cd8 |
134 | %left '(' |
fad39ff1 |
135 | %left '[' '{' |
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136 | |
137 | %% /* RULES */ |
138 | |
ae986130 |
139 | prog : /* NULL */ |
140 | { |
141 | #if defined(YYDEBUG) && defined(DEBUGGING) |
3280af22 |
142 | yydebug = (PL_debug & 1); |
ae986130 |
143 | #endif |
3280af22 |
144 | PL_expect = XSTATE; |
ae986130 |
145 | } |
146 | /*CONTINUED*/ lineseq |
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147 | { newPROG($2); } |
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148 | ; |
149 | |
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150 | block : '{' remember lineseq '}' |
3280af22 |
151 | { if (PL_copline > (line_t)$1) |
152 | PL_copline = $1; |
36477c24 |
153 | $$ = block_end($2, $3); } |
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154 | ; |
155 | |
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156 | remember: /* NULL */ /* start a full lexical scope */ |
157 | { $$ = block_start(TRUE); } |
158 | ; |
159 | |
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160 | mblock : '{' mremember lineseq '}' |
3280af22 |
161 | { if (PL_copline > (line_t)$1) |
162 | PL_copline = $1; |
36477c24 |
163 | $$ = block_end($2, $3); } |
55497cff |
164 | ; |
165 | |
166 | mremember: /* NULL */ /* start a partial lexical scope */ |
167 | { $$ = block_start(FALSE); } |
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168 | ; |
169 | |
170 | lineseq : /* NULL */ |
79072805 |
171 | { $$ = Nullop; } |
172 | | lineseq decl |
173 | { $$ = $1; } |
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174 | | lineseq line |
463ee0b2 |
175 | { $$ = append_list(OP_LINESEQ, |
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176 | (LISTOP*)$1, (LISTOP*)$2); |
3280af22 |
177 | PL_pad_reset_pending = TRUE; |
178 | if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; } |
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179 | ; |
180 | |
79072805 |
181 | line : label cond |
182 | { $$ = newSTATEOP(0, $1, $2); } |
8d063cd8 |
183 | | loop /* loops add their own labels */ |
184 | | label ';' |
185 | { if ($1 != Nullch) { |
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186 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 |
187 | } |
188 | else { |
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189 | $$ = Nullop; |
3280af22 |
190 | PL_copline = NOLINE; |
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191 | } |
3280af22 |
192 | PL_expect = XSTATE; } |
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193 | | label sideff ';' |
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194 | { $$ = newSTATEOP(0, $1, $2); |
3280af22 |
195 | PL_expect = XSTATE; } |
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196 | ; |
197 | |
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198 | sideff : error |
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199 | { $$ = Nullop; } |
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200 | | expr |
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201 | { $$ = $1; } |
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202 | | expr IF expr |
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203 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
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204 | | expr UNLESS expr |
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205 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
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206 | | expr WHILE expr |
8990e307 |
207 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
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208 | | expr UNTIL iexpr |
209 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} |
ecca16b0 |
210 | | expr FOR expr |
211 | { $$ = newFOROP(0, Nullch, $2, |
212 | Nullop, $3, $1, Nullop); } |
79072805 |
213 | ; |
214 | |
215 | else : /* NULL */ |
216 | { $$ = Nullop; } |
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217 | | ELSE mblock |
38a230cb |
218 | { ($2)->op_flags |= OPf_PARENS; $$ = scope($2); } |
55497cff |
219 | | ELSIF '(' mexpr ')' mblock else |
3280af22 |
220 | { PL_copline = $1; |
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221 | $$ = newCONDOP(0, $3, scope($5), $6); |
3280af22 |
222 | PL_hints |= HINT_BLOCK_SCOPE; } |
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223 | ; |
224 | |
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225 | cond : IF '(' remember mexpr ')' mblock else |
3280af22 |
226 | { PL_copline = $1; |
36477c24 |
227 | $$ = block_end($3, |
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228 | newCONDOP(0, $4, scope($6), $7)); } |
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229 | | UNLESS '(' remember miexpr ')' mblock else |
3280af22 |
230 | { PL_copline = $1; |
36477c24 |
231 | $$ = block_end($3, |
bbce6d69 |
232 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 |
233 | ; |
234 | |
235 | cont : /* NULL */ |
236 | { $$ = Nullop; } |
237 | | CONTINUE block |
238 | { $$ = scope($2); } |
239 | ; |
240 | |
55497cff |
241 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
3280af22 |
242 | { PL_copline = $2; |
36477c24 |
243 | $$ = block_end($4, |
55497cff |
244 | newSTATEOP(0, $1, |
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245 | newWHILEOP(0, 1, (LOOP*)Nullop, |
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246 | $2, $5, $7, $8))); } |
55497cff |
247 | | label UNTIL '(' remember miexpr ')' mblock cont |
3280af22 |
248 | { PL_copline = $2; |
36477c24 |
249 | $$ = block_end($4, |
55497cff |
250 | newSTATEOP(0, $1, |
bbce6d69 |
251 | newWHILEOP(0, 1, (LOOP*)Nullop, |
fb73857a |
252 | $2, $5, $7, $8))); } |
bbce6d69 |
253 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 |
254 | { $$ = block_end($4, |
bbce6d69 |
255 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
256 | | label FOR scalar '(' remember mexpr ')' mblock cont |
36477c24 |
257 | { $$ = block_end($5, |
bbce6d69 |
258 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
259 | $6, $8, $9)); } |
260 | | label FOR '(' remember mexpr ')' mblock cont |
36477c24 |
261 | { $$ = block_end($4, |
55497cff |
262 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 |
263 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 |
264 | /* basically fake up an initialize-while lineseq */ |
fb73857a |
265 | { OP *forop = append_elem(OP_LINESEQ, |
266 | scalar($5), |
267 | newWHILEOP(0, 1, (LOOP*)Nullop, |
268 | $2, scalar($7), |
269 | $11, scalar($9))); |
3280af22 |
270 | PL_copline = $2; |
fb73857a |
271 | $$ = block_end($4, newSTATEOP(0, $1, forop)); } |
79072805 |
272 | | label block cont /* a block is a loop that happens once */ |
fb73857a |
273 | { $$ = newSTATEOP(0, $1, |
274 | newWHILEOP(0, 1, (LOOP*)Nullop, |
275 | NOLINE, Nullop, $2, $3)); } |
8d063cd8 |
276 | ; |
277 | |
278 | nexpr : /* NULL */ |
79072805 |
279 | { $$ = Nullop; } |
8d063cd8 |
280 | | sideff |
281 | ; |
282 | |
283 | texpr : /* NULL means true */ |
79072805 |
284 | { (void)scan_num("1"); $$ = yylval.opval; } |
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285 | | expr |
286 | ; |
287 | |
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288 | iexpr : expr |
289 | { $$ = invert(scalar($1)); } |
290 | ; |
291 | |
292 | mexpr : expr |
bbce6d69 |
293 | { $$ = $1; intro_my(); } |
294 | ; |
295 | |
296 | mnexpr : nexpr |
297 | { $$ = $1; intro_my(); } |
55497cff |
298 | ; |
299 | |
300 | mtexpr : texpr |
bbce6d69 |
301 | { $$ = $1; intro_my(); } |
55497cff |
302 | ; |
303 | |
304 | miexpr : iexpr |
bbce6d69 |
305 | { $$ = $1; intro_my(); } |
55497cff |
306 | ; |
307 | |
8d063cd8 |
308 | label : /* empty */ |
309 | { $$ = Nullch; } |
32c2e4fb |
310 | | LABEL |
8d063cd8 |
311 | ; |
312 | |
8d063cd8 |
313 | decl : format |
314 | { $$ = 0; } |
315 | | subrout |
316 | { $$ = 0; } |
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317 | | mysubrout |
318 | { $$ = 0; } |
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319 | | package |
320 | { $$ = 0; } |
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321 | | use |
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322 | { $$ = 0; } |
8d063cd8 |
323 | ; |
324 | |
44a8e56a |
325 | format : FORMAT startformsub formname block |
a0d0e21e |
326 | { newFORM($2, $3, $4); } |
44a8e56a |
327 | ; |
328 | |
329 | formname: WORD { $$ = $1; } |
330 | | /* NULL */ { $$ = Nullop; } |
8d063cd8 |
331 | ; |
332 | |
09bef843 |
333 | mysubrout: MYSUB startsub subname proto subattrlist subbody |
334 | { newMYSUB($2, $3, $4, $5, $6); } |
335 | ; |
336 | |
337 | subrout : SUB startsub subname proto subattrlist subbody |
338 | { newATTRSUB($2, $3, $4, $5, $6); } |
28757baa |
339 | ; |
340 | |
fa83b5b6 |
341 | startsub: /* NULL */ /* start a regular subroutine scope */ |
774d564b |
342 | { $$ = start_subparse(FALSE, 0); } |
28757baa |
343 | ; |
344 | |
345 | startanonsub: /* NULL */ /* start an anonymous subroutine scope */ |
774d564b |
346 | { $$ = start_subparse(FALSE, CVf_ANON); } |
28757baa |
347 | ; |
348 | |
44a8e56a |
349 | startformsub: /* NULL */ /* start a format subroutine scope */ |
774d564b |
350 | { $$ = start_subparse(TRUE, 0); } |
44a8e56a |
351 | ; |
352 | |
2d8e6c8d |
353 | subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a); |
e858de61 |
354 | if (strEQ(name, "BEGIN") || strEQ(name, "END") |
7d07dbc2 |
355 | || strEQ(name, "INIT")) |
1aff0e91 |
356 | CvSPECIAL_on(PL_compcv); |
28757baa |
357 | $$ = $1; } |
a0d0e21e |
358 | ; |
359 | |
4633a7c4 |
360 | proto : /* NULL */ |
361 | { $$ = Nullop; } |
362 | | THING |
363 | ; |
28757baa |
364 | |
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365 | subattrlist: /* NULL */ |
366 | { $$ = Nullop; } |
367 | | COLONATTR THING |
368 | { $$ = $2; } |
369 | | COLONATTR |
370 | { $$ = Nullop; } |
371 | ; |
372 | |
373 | myattrlist: COLONATTR THING |
374 | { $$ = $2; } |
375 | | COLONATTR |
376 | { $$ = Nullop; } |
377 | ; |
378 | |
28757baa |
379 | subbody : block { $$ = $1; } |
3280af22 |
380 | | ';' { $$ = Nullop; PL_expect = XSTATE; } |
8d063cd8 |
381 | ; |
382 | |
a687059c |
383 | package : PACKAGE WORD ';' |
79072805 |
384 | { package($2); } |
93a17b20 |
385 | | PACKAGE ';' |
386 | { package(Nullop); } |
a687059c |
387 | ; |
388 | |
28757baa |
389 | use : USE startsub |
1aff0e91 |
390 | { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ } |
28757baa |
391 | WORD WORD listexpr ';' |
392 | { utilize($1, $2, $4, $5, $6); } |
85e6fe83 |
393 | ; |
394 | |
a0d0e21e |
395 | expr : expr ANDOP expr |
396 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
397 | | expr OROP expr |
398 | { $$ = newLOGOP($2, 0, $1, $3); } |
fad39ff1 |
399 | | argexpr %prec PREC_LOW |
a0d0e21e |
400 | ; |
401 | |
402 | argexpr : argexpr ',' |
403 | { $$ = $1; } |
404 | | argexpr ',' term |
79072805 |
405 | { $$ = append_elem(OP_LIST, $1, $3); } |
fad39ff1 |
406 | | term %prec PREC_LOW |
8d063cd8 |
407 | ; |
408 | |
a0d0e21e |
409 | listop : LSTOP indirob argexpr |
79072805 |
410 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e |
411 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
412 | | FUNC '(' indirob expr ')' |
79072805 |
413 | { $$ = convert($1, OPf_STACKED, |
a0d0e21e |
414 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
415 | | term ARROW method '(' listexprcom ')' |
4633a7c4 |
416 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
417 | append_elem(OP_LIST, |
55497cff |
418 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e |
419 | newUNOP(OP_METHOD, 0, $3))); } |
b1524f17 |
420 | | term ARROW method |
421 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
422 | append_elem(OP_LIST, scalar($1), |
423 | newUNOP(OP_METHOD, 0, $3))); } |
79072805 |
424 | | METHOD indirob listexpr |
4633a7c4 |
425 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
426 | append_elem(OP_LIST, |
4633a7c4 |
427 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e |
428 | newUNOP(OP_METHOD, 0, $1))); } |
429 | | FUNCMETH indirob '(' listexprcom ')' |
4633a7c4 |
430 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
431 | append_elem(OP_LIST, |
4633a7c4 |
432 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e |
433 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 |
434 | | LSTOP listexpr |
435 | { $$ = convert($1, 0, $2); } |
a0d0e21e |
436 | | FUNC '(' listexprcom ')' |
79072805 |
437 | { $$ = convert($1, 0, $3); } |
28757baa |
438 | | LSTOPSUB startanonsub block |
09bef843 |
439 | { $3 = newANONATTRSUB($2, 0, Nullop, $3); } |
28757baa |
440 | listexpr %prec LSTOP |
4633a7c4 |
441 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
28757baa |
442 | append_elem(OP_LIST, |
443 | prepend_elem(OP_LIST, $3, $5), $1)); } |
a687059c |
444 | ; |
445 | |
a0d0e21e |
446 | method : METHOD |
447 | | scalar |
448 | ; |
449 | |
fad39ff1 |
450 | subscripted: star '{' expr ';' '}' |
451 | { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); } |
452 | | scalar '[' expr ']' |
453 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } |
454 | | term ARROW '[' expr ']' |
455 | { $$ = newBINOP(OP_AELEM, 0, |
456 | ref(newAVREF($1),OP_RV2AV), |
457 | scalar($4));} |
458 | | subscripted '[' expr ']' |
459 | { $$ = newBINOP(OP_AELEM, 0, |
460 | ref(newAVREF($1),OP_RV2AV), |
461 | scalar($3));} |
462 | | scalar '{' expr ';' '}' |
463 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
464 | PL_expect = XOPERATOR; } |
465 | | term ARROW '{' expr ';' '}' |
466 | { $$ = newBINOP(OP_HELEM, 0, |
467 | ref(newHVREF($1),OP_RV2HV), |
468 | jmaybe($4)); |
469 | PL_expect = XOPERATOR; } |
470 | | subscripted '{' expr ';' '}' |
471 | { $$ = newBINOP(OP_HELEM, 0, |
472 | ref(newHVREF($1),OP_RV2HV), |
473 | jmaybe($3)); |
474 | PL_expect = XOPERATOR; } |
475 | | term ARROW '(' ')' |
476 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
477 | newCVREF(0, scalar($1))); } |
478 | | term ARROW '(' expr ')' |
479 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
480 | append_elem(OP_LIST, $4, |
481 | newCVREF(0, scalar($1)))); } |
482 | |
483 | | subscripted '(' expr ')' |
484 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
485 | append_elem(OP_LIST, $3, |
486 | newCVREF(0, scalar($1)))); } |
487 | | subscripted '(' ')' |
488 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
489 | newCVREF(0, scalar($1))); } |
490 | |
491 | |
492 | |
a0d0e21e |
493 | term : term ASSIGNOP term |
494 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
495 | | term POWOP term |
79072805 |
496 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
497 | | term MULOP term |
79072805 |
498 | { if ($2 != OP_REPEAT) |
499 | scalar($1); |
500 | $$ = newBINOP($2, 0, $1, scalar($3)); } |
a0d0e21e |
501 | | term ADDOP term |
79072805 |
502 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
503 | | term SHIFTOP term |
79072805 |
504 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
505 | | term RELOP term |
79072805 |
506 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
507 | | term EQOP term |
79072805 |
508 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
509 | | term BITANDOP term |
79072805 |
510 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
511 | | term BITOROP term |
79072805 |
512 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
513 | | term DOTDOT term |
79072805 |
514 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e |
515 | | term ANDAND term |
463ee0b2 |
516 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e |
517 | | term OROR term |
463ee0b2 |
518 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e |
519 | | term '?' term ':' term |
79072805 |
520 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e |
521 | | term MATCHOP term |
79072805 |
522 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 |
523 | |
a0d0e21e |
524 | | '-' term %prec UMINUS |
79072805 |
525 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c |
526 | | '+' term %prec UMINUS |
527 | { $$ = $2; } |
8d063cd8 |
528 | | '!' term |
79072805 |
529 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 |
530 | | '~' term |
79072805 |
531 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
532 | | REFGEN term |
a0d0e21e |
533 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 |
534 | | term POSTINC |
535 | { $$ = newUNOP(OP_POSTINC, 0, |
463ee0b2 |
536 | mod(scalar($1), OP_POSTINC)); } |
79072805 |
537 | | term POSTDEC |
538 | { $$ = newUNOP(OP_POSTDEC, 0, |
463ee0b2 |
539 | mod(scalar($1), OP_POSTDEC)); } |
79072805 |
540 | | PREINC term |
541 | { $$ = newUNOP(OP_PREINC, 0, |
463ee0b2 |
542 | mod(scalar($2), OP_PREINC)); } |
79072805 |
543 | | PREDEC term |
544 | { $$ = newUNOP(OP_PREDEC, 0, |
463ee0b2 |
545 | mod(scalar($2), OP_PREDEC)); } |
09bef843 |
546 | | myattrterm %prec UNIOP |
547 | { $$ = $1; } |
548 | | LOCAL term %prec UNIOP |
93a17b20 |
549 | { $$ = localize($2,$1); } |
a0d0e21e |
550 | | '(' expr ')' |
79072805 |
551 | { $$ = sawparens($2); } |
8d063cd8 |
552 | | '(' ')' |
8990e307 |
553 | { $$ = sawparens(newNULLLIST()); } |
fad39ff1 |
554 | | '[' expr ']' |
79072805 |
555 | { $$ = newANONLIST($2); } |
fad39ff1 |
556 | | '[' ']' |
79072805 |
557 | { $$ = newANONLIST(Nullop); } |
a0d0e21e |
558 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 |
559 | { $$ = newANONHASH($2); } |
560 | | HASHBRACK ';' '}' %prec '(' |
561 | { $$ = newANONHASH(Nullop); } |
09bef843 |
562 | | ANONSUB startanonsub proto subattrlist block %prec '(' |
563 | { $$ = newANONATTRSUB($2, $3, $4, $5); } |
79072805 |
564 | | scalar %prec '(' |
8d063cd8 |
565 | { $$ = $1; } |
79072805 |
566 | | star %prec '(' |
8d063cd8 |
567 | { $$ = $1; } |
79072805 |
568 | | hsh %prec '(' |
8d063cd8 |
569 | { $$ = $1; } |
79072805 |
570 | | ary %prec '(' |
8d063cd8 |
571 | { $$ = $1; } |
79072805 |
572 | | arylen %prec '(' |
573 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
fad39ff1 |
574 | | subscripted |
575 | { $$ = $1; } |
576 | | '(' expr ')' '[' expr ']' |
79072805 |
577 | { $$ = newSLICEOP(0, $5, $2); } |
fad39ff1 |
578 | | '(' ')' '[' expr ']' |
79072805 |
579 | { $$ = newSLICEOP(0, $4, Nullop); } |
fad39ff1 |
580 | | ary '[' expr ']' |
79072805 |
581 | { $$ = prepend_elem(OP_ASLICE, |
582 | newOP(OP_PUSHMARK, 0), |
79072805 |
583 | newLISTOP(OP_ASLICE, 0, |
584 | list($3), |
a0d0e21e |
585 | ref($1, OP_ASLICE))); } |
fad39ff1 |
586 | | ary '{' expr ';' '}' |
79072805 |
587 | { $$ = prepend_elem(OP_HSLICE, |
588 | newOP(OP_PUSHMARK, 0), |
79072805 |
589 | newLISTOP(OP_HSLICE, 0, |
590 | list($3), |
a0d0e21e |
591 | ref(oopsHV($1), OP_HSLICE))); |
3280af22 |
592 | PL_expect = XOPERATOR; } |
79072805 |
593 | | THING %prec '(' |
594 | { $$ = $1; } |
595 | | amper |
c07a80fd |
596 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 |
597 | | amper '(' ')' |
a0d0e21e |
598 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
599 | | amper '(' expr ')' |
600 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 |
601 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 |
602 | | NOAMP WORD listexpr |
a0d0e21e |
603 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 |
604 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e |
605 | | DO term %prec UNIOP |
78ca652e |
606 | { $$ = dofile($2); } |
79072805 |
607 | | DO block %prec '(' |
608 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } |
8d063cd8 |
609 | | DO WORD '(' ')' |
c07a80fd |
610 | { $$ = newUNOP(OP_ENTERSUB, |
611 | OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
612 | prepend_elem(OP_LIST, |
c07a80fd |
613 | scalar(newCVREF( |
614 | (OPpENTERSUB_AMPER<<8), |
615 | scalar($2) |
616 | )),Nullop)); dep();} |
a0d0e21e |
617 | | DO WORD '(' expr ')' |
c07a80fd |
618 | { $$ = newUNOP(OP_ENTERSUB, |
619 | OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
620 | append_elem(OP_LIST, |
a0d0e21e |
621 | $4, |
c07a80fd |
622 | scalar(newCVREF( |
623 | (OPpENTERSUB_AMPER<<8), |
624 | scalar($2) |
625 | )))); dep();} |
79072805 |
626 | | DO scalar '(' ')' |
a0d0e21e |
627 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
628 | prepend_elem(OP_LIST, |
c07a80fd |
629 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e |
630 | | DO scalar '(' expr ')' |
631 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
632 | prepend_elem(OP_LIST, |
a0d0e21e |
633 | $4, |
c07a80fd |
634 | scalar(newCVREF(0,scalar($2))))); dep();} |
8d063cd8 |
635 | | LOOPEX |
85e6fe83 |
636 | { $$ = newOP($1, OPf_SPECIAL); |
3280af22 |
637 | PL_hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e |
638 | | LOOPEX term |
8990e307 |
639 | { $$ = newLOOPEX($1,$2); } |
c07a80fd |
640 | | NOTOP argexpr |
641 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 |
642 | | UNIOP |
79072805 |
643 | { $$ = newOP($1, 0); } |
f0fcb552 |
644 | | UNIOP block |
79072805 |
645 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e |
646 | | UNIOP term |
79072805 |
647 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 |
648 | | UNIOPSUB term |
649 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
650 | append_elem(OP_LIST, $2, scalar($1))); } |
8d063cd8 |
651 | | FUNC0 |
79072805 |
652 | { $$ = newOP($1, 0); } |
ae986130 |
653 | | FUNC0 '(' ')' |
79072805 |
654 | { $$ = newOP($1, 0); } |
4633a7c4 |
655 | | FUNC0SUB |
28757baa |
656 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 |
657 | scalar($1)); } |
03a14243 |
658 | | FUNC1 '(' ')' |
79072805 |
659 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 |
660 | | FUNC1 '(' expr ')' |
79072805 |
661 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e |
662 | | PMFUNC '(' term ')' |
79072805 |
663 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e |
664 | | PMFUNC '(' term ',' term ')' |
79072805 |
665 | { $$ = pmruntime($1, $3, $5); } |
666 | | WORD |
378cc40b |
667 | | listop |
8d063cd8 |
668 | ; |
669 | |
09bef843 |
670 | myattrterm: MY myterm myattrlist |
671 | { $$ = my_attrs($2,$3); } |
672 | | MY myterm |
673 | { $$ = localize($2,$1); } |
674 | ; |
675 | |
676 | myterm : '(' expr ')' |
677 | { $$ = sawparens($2); } |
678 | | '(' ')' |
679 | { $$ = sawparens(newNULLLIST()); } |
680 | | scalar %prec '(' |
681 | { $$ = $1; } |
682 | | hsh %prec '(' |
683 | { $$ = $1; } |
684 | | ary %prec '(' |
685 | { $$ = $1; } |
686 | ; |
687 | |
fad39ff1 |
688 | listexpr: /* NULL */ %prec PREC_LOW |
8990e307 |
689 | { $$ = Nullop; } |
fad39ff1 |
690 | | argexpr %prec PREC_LOW |
a0d0e21e |
691 | { $$ = $1; } |
692 | ; |
693 | |
694 | listexprcom: /* NULL */ |
695 | { $$ = Nullop; } |
79072805 |
696 | | expr |
697 | { $$ = $1; } |
a0d0e21e |
698 | | expr ',' |
699 | { $$ = $1; } |
79072805 |
700 | ; |
701 | |
55497cff |
702 | my_scalar: scalar |
3280af22 |
703 | { PL_in_my = 0; $$ = my($1); } |
55497cff |
704 | ; |
705 | |
79072805 |
706 | amper : '&' indirob |
c07a80fd |
707 | { $$ = newCVREF($1,$2); } |
a687059c |
708 | ; |
709 | |
79072805 |
710 | scalar : '$' indirob |
711 | { $$ = newSVREF($2); } |
a687059c |
712 | ; |
713 | |
79072805 |
714 | ary : '@' indirob |
715 | { $$ = newAVREF($2); } |
716 | ; |
717 | |
718 | hsh : '%' indirob |
719 | { $$ = newHVREF($2); } |
720 | ; |
721 | |
722 | arylen : DOLSHARP indirob |
723 | { $$ = newAVREF($2); } |
724 | ; |
725 | |
726 | star : '*' indirob |
a0d0e21e |
727 | { $$ = newGVREF(0,$2); } |
79072805 |
728 | ; |
729 | |
730 | indirob : WORD |
731 | { $$ = scalar($1); } |
fad39ff1 |
732 | | scalar %prec PREC_LOW |
463ee0b2 |
733 | { $$ = scalar($1); } |
79072805 |
734 | | block |
a0d0e21e |
735 | { $$ = scope($1); } |
79072805 |
736 | |
93a17b20 |
737 | | PRIVATEREF |
738 | { $$ = $1; } |
8d063cd8 |
739 | ; |
740 | |
741 | %% /* PROGRAM */ |
09bef843 |
742 | |
743 | /* more stuff added to make perly_c.diff easier to apply */ |
744 | |
745 | #ifdef yyparse |
746 | #undef yyparse |
747 | #endif |
748 | #define yyparse() Perl_yyparse(pTHX) |
749 | |