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1 | /* perly.y |
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2 | * |
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3 | * Copyright (c) 1991-1994, 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? |
12 | * All that is gold does not glitter, not all those that wander are lost.' |
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13 | */ |
14 | |
15 | %{ |
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16 | #include "EXTERN.h" |
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17 | #include "perl.h" |
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18 | |
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19 | static void |
20 | dep() |
21 | { |
22 | deprecate("\"do\" to call subroutines"); |
23 | } |
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24 | |
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25 | %} |
26 | |
27 | %start prog |
28 | |
29 | %union { |
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30 | I32 ival; |
31 | char *pval; |
32 | OP *opval; |
33 | GV *gvval; |
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34 | } |
35 | |
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36 | %token <ival> '{' ')' |
37 | |
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38 | %token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF |
4633a7c4 |
39 | %token <opval> FUNC0SUB UNIOPSUB LSTOPSUB |
79072805 |
40 | %token <pval> LABEL |
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41 | %token <ival> FORMAT SUB ANONSUB PACKAGE USE |
79072805 |
42 | %token <ival> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR |
43 | %token <ival> LOOPEX DOTDOT |
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44 | %token <ival> FUNC0 FUNC1 FUNC UNIOP LSTOP |
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45 | %token <ival> RELOP EQOP MULOP ADDOP |
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46 | %token <ival> DOLSHARP DO HASHBRACK NOAMP |
47 | %token LOCAL MY |
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48 | |
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49 | %type <ival> prog decl local format startsub remember mremember '&' |
bbce6d69 |
50 | %type <opval> block mblock lineseq line loop cond else |
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51 | %type <opval> expr term scalar ary hsh arylen star amper sideff |
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52 | %type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr |
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53 | %type <opval> listexpr listexprcom indirob |
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54 | %type <opval> listop method proto cont my_scalar |
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55 | %type <pval> label |
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56 | |
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57 | %left <ival> OROP |
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58 | %left ANDOP |
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59 | %right NOTOP |
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60 | %nonassoc LSTOP LSTOPSUB |
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61 | %left ',' |
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62 | %right <ival> ASSIGNOP |
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63 | %right '?' ':' |
64 | %nonassoc DOTDOT |
65 | %left OROR |
66 | %left ANDAND |
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67 | %left <ival> BITOROP |
68 | %left <ival> BITANDOP |
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69 | %nonassoc EQOP |
70 | %nonassoc RELOP |
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71 | %nonassoc UNIOP UNIOPSUB |
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72 | %left <ival> SHIFTOP |
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73 | %left ADDOP |
74 | %left MULOP |
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75 | %left <ival> MATCHOP |
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76 | %right '!' '~' UMINUS REFGEN |
77 | %right <ival> POWOP |
78 | %nonassoc PREINC PREDEC POSTINC POSTDEC |
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79 | %left ARROW |
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80 | %left '(' |
81 | |
82 | %% /* RULES */ |
83 | |
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84 | prog : /* NULL */ |
85 | { |
86 | #if defined(YYDEBUG) && defined(DEBUGGING) |
87 | yydebug = (debug & 1); |
88 | #endif |
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89 | expect = XSTATE; |
ae986130 |
90 | } |
91 | /*CONTINUED*/ lineseq |
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92 | { newPROG($2); } |
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93 | ; |
94 | |
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95 | block : '{' remember lineseq '}' |
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96 | { if (copline > (line_t)$1) |
97 | copline = $1; |
98 | $$ = block_end($2, $3); } |
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99 | ; |
100 | |
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101 | remember: /* NULL */ /* start a full lexical scope */ |
102 | { $$ = block_start(TRUE); } |
103 | ; |
104 | |
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105 | mblock : '{' mremember lineseq '}' |
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106 | { if (copline > (line_t)$1) |
107 | copline = $1; |
108 | $$ = block_end($2, $3); } |
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109 | ; |
110 | |
111 | mremember: /* NULL */ /* start a partial lexical scope */ |
112 | { $$ = block_start(FALSE); } |
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113 | ; |
114 | |
115 | lineseq : /* NULL */ |
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116 | { $$ = Nullop; } |
117 | | lineseq decl |
118 | { $$ = $1; } |
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119 | | lineseq line |
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120 | { $$ = append_list(OP_LINESEQ, |
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121 | (LISTOP*)$1, (LISTOP*)$2); |
122 | pad_reset_pending = TRUE; |
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123 | if ($1 && $2) hints |= HINT_BLOCK_SCOPE; } |
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124 | ; |
125 | |
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126 | line : label cond |
127 | { $$ = newSTATEOP(0, $1, $2); } |
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128 | | loop /* loops add their own labels */ |
129 | | label ';' |
130 | { if ($1 != Nullch) { |
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131 | $$ = newSTATEOP(0, $1, newOP(OP_NULL, 0)); |
450a55e4 |
132 | } |
133 | else { |
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134 | $$ = Nullop; |
135 | copline = NOLINE; |
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136 | } |
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137 | expect = XSTATE; } |
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138 | | label sideff ';' |
79072805 |
139 | { $$ = newSTATEOP(0, $1, $2); |
8990e307 |
140 | expect = XSTATE; } |
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141 | ; |
142 | |
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143 | sideff : error |
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144 | { $$ = Nullop; } |
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145 | | expr |
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146 | { $$ = $1; } |
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147 | | expr IF expr |
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148 | { $$ = newLOGOP(OP_AND, 0, $3, $1); } |
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149 | | expr UNLESS expr |
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150 | { $$ = newLOGOP(OP_OR, 0, $3, $1); } |
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151 | | expr WHILE expr |
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152 | { $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); } |
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153 | | expr UNTIL iexpr |
154 | { $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);} |
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155 | ; |
156 | |
157 | else : /* NULL */ |
158 | { $$ = Nullop; } |
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159 | | ELSE mblock |
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160 | { $$ = scope($2); } |
55497cff |
161 | | ELSIF '(' mexpr ')' mblock else |
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162 | { copline = $1; |
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163 | $$ = newSTATEOP(0, Nullch, |
164 | newCONDOP(0, $3, scope($5), $6)); |
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165 | hints |= HINT_BLOCK_SCOPE; } |
79072805 |
166 | ; |
167 | |
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168 | cond : IF '(' remember mexpr ')' mblock else |
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169 | { copline = $1; |
36477c24 |
170 | $$ = block_end($3, |
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171 | newCONDOP(0, $4, scope($6), $7)); } |
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172 | | UNLESS '(' remember miexpr ')' mblock else |
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173 | { copline = $1; |
36477c24 |
174 | $$ = block_end($3, |
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175 | newCONDOP(0, $4, scope($6), $7)); } |
79072805 |
176 | ; |
177 | |
178 | cont : /* NULL */ |
179 | { $$ = Nullop; } |
180 | | CONTINUE block |
181 | { $$ = scope($2); } |
182 | ; |
183 | |
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184 | loop : label WHILE '(' remember mtexpr ')' mblock cont |
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185 | { copline = $2; |
36477c24 |
186 | $$ = block_end($4, |
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187 | newSTATEOP(0, $1, |
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188 | newWHILEOP(0, 1, (LOOP*)Nullop, |
189 | $5, $7, $8))); } |
55497cff |
190 | | label UNTIL '(' remember miexpr ')' mblock cont |
79072805 |
191 | { copline = $2; |
36477c24 |
192 | $$ = block_end($4, |
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193 | newSTATEOP(0, $1, |
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194 | newWHILEOP(0, 1, (LOOP*)Nullop, |
195 | $5, $7, $8))); } |
bbce6d69 |
196 | | label FOR MY remember my_scalar '(' mexpr ')' mblock cont |
36477c24 |
197 | { $$ = block_end($4, |
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198 | newFOROP(0, $1, $2, $5, $7, $9, $10)); } |
199 | | label FOR scalar '(' remember mexpr ')' mblock cont |
36477c24 |
200 | { $$ = block_end($5, |
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201 | newFOROP(0, $1, $2, mod($3, OP_ENTERLOOP), |
202 | $6, $8, $9)); } |
203 | | label FOR '(' remember mexpr ')' mblock cont |
36477c24 |
204 | { $$ = block_end($4, |
55497cff |
205 | newFOROP(0, $1, $2, Nullop, $5, $7, $8)); } |
bbce6d69 |
206 | | label FOR '(' remember mnexpr ';' mtexpr ';' mnexpr ')' mblock |
8d063cd8 |
207 | /* basically fake up an initialize-while lineseq */ |
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208 | { copline = $2; |
36477c24 |
209 | $$ = block_end($4, |
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210 | append_elem(OP_LINESEQ, scalar($5), |
211 | newSTATEOP(0, $1, |
212 | newWHILEOP(0, 1, (LOOP*)Nullop, |
213 | scalar($7), |
214 | $11, scalar($9))))); } |
79072805 |
215 | | label block cont /* a block is a loop that happens once */ |
216 | { $$ = newSTATEOP(0, |
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217 | $1, newWHILEOP(0, 1, (LOOP*)Nullop, |
218 | Nullop, $2, $3)); } |
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219 | ; |
220 | |
221 | nexpr : /* NULL */ |
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222 | { $$ = Nullop; } |
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223 | | sideff |
224 | ; |
225 | |
226 | texpr : /* NULL means true */ |
79072805 |
227 | { (void)scan_num("1"); $$ = yylval.opval; } |
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228 | | expr |
229 | ; |
230 | |
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231 | iexpr : expr |
232 | { $$ = invert(scalar($1)); } |
233 | ; |
234 | |
235 | mexpr : expr |
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236 | { $$ = $1; intro_my(); } |
237 | ; |
238 | |
239 | mnexpr : nexpr |
240 | { $$ = $1; intro_my(); } |
55497cff |
241 | ; |
242 | |
243 | mtexpr : texpr |
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244 | { $$ = $1; intro_my(); } |
55497cff |
245 | ; |
246 | |
247 | miexpr : iexpr |
bbce6d69 |
248 | { $$ = $1; intro_my(); } |
55497cff |
249 | ; |
250 | |
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251 | label : /* empty */ |
252 | { $$ = Nullch; } |
32c2e4fb |
253 | | LABEL |
8d063cd8 |
254 | ; |
255 | |
8d063cd8 |
256 | decl : format |
257 | { $$ = 0; } |
258 | | subrout |
259 | { $$ = 0; } |
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260 | | package |
261 | { $$ = 0; } |
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262 | | use |
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263 | { $$ = 0; } |
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264 | ; |
265 | |
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266 | format : FORMAT startsub WORD block |
267 | { newFORM($2, $3, $4); } |
268 | | FORMAT startsub block |
269 | { newFORM($2, Nullop, $3); } |
8d063cd8 |
270 | ; |
271 | |
4633a7c4 |
272 | subrout : SUB startsub WORD proto block |
273 | { newSUB($2, $3, $4, $5); } |
274 | | SUB startsub WORD proto ';' |
275 | { newSUB($2, $3, $4, Nullop); expect = XSTATE; } |
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276 | ; |
277 | |
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278 | proto : /* NULL */ |
279 | { $$ = Nullop; } |
280 | | THING |
281 | ; |
282 | |
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283 | startsub: /* NULL */ /* start a subroutine scope */ |
284 | { $$ = start_subparse(); } |
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285 | ; |
286 | |
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287 | package : PACKAGE WORD ';' |
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288 | { package($2); } |
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289 | | PACKAGE ';' |
290 | { package(Nullop); } |
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291 | ; |
292 | |
62ac1c99 |
293 | use : USE startsub WORD WORD listexpr ';' |
294 | { utilize($1, $2, $3, $4, $5); } |
85e6fe83 |
295 | ; |
296 | |
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297 | expr : expr ANDOP expr |
298 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
299 | | expr OROP expr |
300 | { $$ = newLOGOP($2, 0, $1, $3); } |
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301 | | argexpr |
302 | ; |
303 | |
304 | argexpr : argexpr ',' |
305 | { $$ = $1; } |
306 | | argexpr ',' term |
79072805 |
307 | { $$ = append_elem(OP_LIST, $1, $3); } |
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308 | | term |
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309 | ; |
310 | |
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311 | listop : LSTOP indirob argexpr |
79072805 |
312 | { $$ = convert($1, OPf_STACKED, |
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313 | prepend_elem(OP_LIST, newGVREF($1,$2), $3) ); } |
314 | | FUNC '(' indirob expr ')' |
79072805 |
315 | { $$ = convert($1, OPf_STACKED, |
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316 | prepend_elem(OP_LIST, newGVREF($1,$3), $4) ); } |
317 | | term ARROW method '(' listexprcom ')' |
4633a7c4 |
318 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
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319 | append_elem(OP_LIST, |
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320 | prepend_elem(OP_LIST, scalar($1), $5), |
a0d0e21e |
321 | newUNOP(OP_METHOD, 0, $3))); } |
79072805 |
322 | | METHOD indirob listexpr |
4633a7c4 |
323 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
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324 | append_elem(OP_LIST, |
4633a7c4 |
325 | prepend_elem(OP_LIST, $2, $3), |
a0d0e21e |
326 | newUNOP(OP_METHOD, 0, $1))); } |
327 | | FUNCMETH indirob '(' listexprcom ')' |
4633a7c4 |
328 | { $$ = convert(OP_ENTERSUB, OPf_STACKED, |
a0d0e21e |
329 | append_elem(OP_LIST, |
4633a7c4 |
330 | prepend_elem(OP_LIST, $2, $4), |
a0d0e21e |
331 | newUNOP(OP_METHOD, 0, $1))); } |
79072805 |
332 | | LSTOP listexpr |
333 | { $$ = convert($1, 0, $2); } |
a0d0e21e |
334 | | FUNC '(' listexprcom ')' |
79072805 |
335 | { $$ = convert($1, 0, $3); } |
4633a7c4 |
336 | | LSTOPSUB startsub block listexpr %prec LSTOP |
337 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
338 | append_elem(OP_LIST, |
339 | prepend_elem(OP_LIST, newANONSUB($2, 0, $3), $4), |
340 | $1)); } |
a687059c |
341 | ; |
342 | |
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343 | method : METHOD |
344 | | scalar |
345 | ; |
346 | |
347 | term : term ASSIGNOP term |
348 | { $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); } |
349 | | term POWOP term |
79072805 |
350 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
351 | | term MULOP term |
79072805 |
352 | { if ($2 != OP_REPEAT) |
353 | scalar($1); |
354 | $$ = newBINOP($2, 0, $1, scalar($3)); } |
a0d0e21e |
355 | | term ADDOP term |
79072805 |
356 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
357 | | term SHIFTOP term |
79072805 |
358 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
359 | | term RELOP term |
79072805 |
360 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
361 | | term EQOP term |
79072805 |
362 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
363 | | term BITANDOP term |
79072805 |
364 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
365 | | term BITOROP term |
79072805 |
366 | { $$ = newBINOP($2, 0, scalar($1), scalar($3)); } |
a0d0e21e |
367 | | term DOTDOT term |
79072805 |
368 | { $$ = newRANGE($2, scalar($1), scalar($3));} |
a0d0e21e |
369 | | term ANDAND term |
463ee0b2 |
370 | { $$ = newLOGOP(OP_AND, 0, $1, $3); } |
a0d0e21e |
371 | | term OROR term |
463ee0b2 |
372 | { $$ = newLOGOP(OP_OR, 0, $1, $3); } |
a0d0e21e |
373 | | term '?' term ':' term |
79072805 |
374 | { $$ = newCONDOP(0, $1, $3, $5); } |
a0d0e21e |
375 | | term MATCHOP term |
79072805 |
376 | { $$ = bind_match($2, $1, $3); } |
8d063cd8 |
377 | |
a0d0e21e |
378 | | '-' term %prec UMINUS |
79072805 |
379 | { $$ = newUNOP(OP_NEGATE, 0, scalar($2)); } |
a687059c |
380 | | '+' term %prec UMINUS |
381 | { $$ = $2; } |
8d063cd8 |
382 | | '!' term |
79072805 |
383 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 |
384 | | '~' term |
79072805 |
385 | { $$ = newUNOP(OP_COMPLEMENT, 0, scalar($2));} |
386 | | REFGEN term |
a0d0e21e |
387 | { $$ = newUNOP(OP_REFGEN, 0, mod($2,OP_REFGEN)); } |
79072805 |
388 | | term POSTINC |
389 | { $$ = newUNOP(OP_POSTINC, 0, |
463ee0b2 |
390 | mod(scalar($1), OP_POSTINC)); } |
79072805 |
391 | | term POSTDEC |
392 | { $$ = newUNOP(OP_POSTDEC, 0, |
463ee0b2 |
393 | mod(scalar($1), OP_POSTDEC)); } |
79072805 |
394 | | PREINC term |
395 | { $$ = newUNOP(OP_PREINC, 0, |
463ee0b2 |
396 | mod(scalar($2), OP_PREINC)); } |
79072805 |
397 | | PREDEC term |
398 | { $$ = newUNOP(OP_PREDEC, 0, |
463ee0b2 |
399 | mod(scalar($2), OP_PREDEC)); } |
55497cff |
400 | | local term %prec UNIOP |
93a17b20 |
401 | { $$ = localize($2,$1); } |
a0d0e21e |
402 | | '(' expr ')' |
79072805 |
403 | { $$ = sawparens($2); } |
8d063cd8 |
404 | | '(' ')' |
8990e307 |
405 | { $$ = sawparens(newNULLLIST()); } |
a0d0e21e |
406 | | '[' expr ']' %prec '(' |
79072805 |
407 | { $$ = newANONLIST($2); } |
408 | | '[' ']' %prec '(' |
409 | { $$ = newANONLIST(Nullop); } |
a0d0e21e |
410 | | HASHBRACK expr ';' '}' %prec '(' |
79072805 |
411 | { $$ = newANONHASH($2); } |
412 | | HASHBRACK ';' '}' %prec '(' |
413 | { $$ = newANONHASH(Nullop); } |
4633a7c4 |
414 | | ANONSUB startsub proto block %prec '(' |
415 | { $$ = newANONSUB($2, $3, $4); } |
79072805 |
416 | | scalar %prec '(' |
8d063cd8 |
417 | { $$ = $1; } |
c07a80fd |
418 | | star '{' expr ';' '}' |
419 | { $$ = newBINOP(OP_GELEM, 0, newGVREF(0,$1), $3); } |
79072805 |
420 | | star %prec '(' |
8d063cd8 |
421 | { $$ = $1; } |
79072805 |
422 | | scalar '[' expr ']' %prec '(' |
423 | { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); } |
424 | | term ARROW '[' expr ']' %prec '(' |
425 | { $$ = newBINOP(OP_AELEM, 0, |
8990e307 |
426 | ref(newAVREF($1),OP_RV2AV), |
79072805 |
427 | scalar($4));} |
463ee0b2 |
428 | | term '[' expr ']' %prec '(' |
a0d0e21e |
429 | { assertref($1); $$ = newBINOP(OP_AELEM, 0, |
8990e307 |
430 | ref(newAVREF($1),OP_RV2AV), |
463ee0b2 |
431 | scalar($3));} |
79072805 |
432 | | hsh %prec '(' |
8d063cd8 |
433 | { $$ = $1; } |
79072805 |
434 | | ary %prec '(' |
8d063cd8 |
435 | { $$ = $1; } |
79072805 |
436 | | arylen %prec '(' |
437 | { $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));} |
438 | | scalar '{' expr ';' '}' %prec '(' |
439 | { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3)); |
440 | expect = XOPERATOR; } |
441 | | term ARROW '{' expr ';' '}' %prec '(' |
442 | { $$ = newBINOP(OP_HELEM, 0, |
8990e307 |
443 | ref(newHVREF($1),OP_RV2HV), |
79072805 |
444 | jmaybe($4)); |
445 | expect = XOPERATOR; } |
463ee0b2 |
446 | | term '{' expr ';' '}' %prec '(' |
a0d0e21e |
447 | { assertref($1); $$ = newBINOP(OP_HELEM, 0, |
8990e307 |
448 | ref(newHVREF($1),OP_RV2HV), |
463ee0b2 |
449 | jmaybe($3)); |
450 | expect = XOPERATOR; } |
a0d0e21e |
451 | | '(' expr ')' '[' expr ']' %prec '(' |
79072805 |
452 | { $$ = newSLICEOP(0, $5, $2); } |
453 | | '(' ')' '[' expr ']' %prec '(' |
454 | { $$ = newSLICEOP(0, $4, Nullop); } |
455 | | ary '[' expr ']' %prec '(' |
456 | { $$ = prepend_elem(OP_ASLICE, |
457 | newOP(OP_PUSHMARK, 0), |
79072805 |
458 | newLISTOP(OP_ASLICE, 0, |
459 | list($3), |
a0d0e21e |
460 | ref($1, OP_ASLICE))); } |
79072805 |
461 | | ary '{' expr ';' '}' %prec '(' |
462 | { $$ = prepend_elem(OP_HSLICE, |
463 | newOP(OP_PUSHMARK, 0), |
79072805 |
464 | newLISTOP(OP_HSLICE, 0, |
465 | list($3), |
a0d0e21e |
466 | ref(oopsHV($1), OP_HSLICE))); |
79072805 |
467 | expect = XOPERATOR; } |
468 | | THING %prec '(' |
469 | { $$ = $1; } |
470 | | amper |
c07a80fd |
471 | { $$ = newUNOP(OP_ENTERSUB, 0, scalar($1)); } |
79072805 |
472 | | amper '(' ')' |
a0d0e21e |
473 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, scalar($1)); } |
474 | | amper '(' expr ')' |
475 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
4633a7c4 |
476 | append_elem(OP_LIST, $3, scalar($1))); } |
93a17b20 |
477 | | NOAMP WORD listexpr |
a0d0e21e |
478 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
a5f75d66 |
479 | append_elem(OP_LIST, $3, scalar($2))); } |
a0d0e21e |
480 | | DO term %prec UNIOP |
463ee0b2 |
481 | { $$ = newUNOP(OP_DOFILE, 0, scalar($2)); } |
79072805 |
482 | | DO block %prec '(' |
483 | { $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); } |
8d063cd8 |
484 | | DO WORD '(' ')' |
c07a80fd |
485 | { $$ = newUNOP(OP_ENTERSUB, |
486 | OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
487 | prepend_elem(OP_LIST, |
c07a80fd |
488 | scalar(newCVREF( |
489 | (OPpENTERSUB_AMPER<<8), |
490 | scalar($2) |
491 | )),Nullop)); dep();} |
a0d0e21e |
492 | | DO WORD '(' expr ')' |
c07a80fd |
493 | { $$ = newUNOP(OP_ENTERSUB, |
494 | OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
495 | append_elem(OP_LIST, |
a0d0e21e |
496 | $4, |
c07a80fd |
497 | scalar(newCVREF( |
498 | (OPpENTERSUB_AMPER<<8), |
499 | scalar($2) |
500 | )))); dep();} |
79072805 |
501 | | DO scalar '(' ')' |
a0d0e21e |
502 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
503 | prepend_elem(OP_LIST, |
c07a80fd |
504 | scalar(newCVREF(0,scalar($2))), Nullop)); dep();} |
a0d0e21e |
505 | | DO scalar '(' expr ')' |
506 | { $$ = newUNOP(OP_ENTERSUB, OPf_SPECIAL|OPf_STACKED, |
4633a7c4 |
507 | prepend_elem(OP_LIST, |
a0d0e21e |
508 | $4, |
c07a80fd |
509 | scalar(newCVREF(0,scalar($2))))); dep();} |
8d063cd8 |
510 | | LOOPEX |
85e6fe83 |
511 | { $$ = newOP($1, OPf_SPECIAL); |
512 | hints |= HINT_BLOCK_SCOPE; } |
a0d0e21e |
513 | | LOOPEX term |
8990e307 |
514 | { $$ = newLOOPEX($1,$2); } |
c07a80fd |
515 | | NOTOP argexpr |
516 | { $$ = newUNOP(OP_NOT, 0, scalar($2)); } |
8d063cd8 |
517 | | UNIOP |
79072805 |
518 | { $$ = newOP($1, 0); } |
f0fcb552 |
519 | | UNIOP block |
79072805 |
520 | { $$ = newUNOP($1, 0, $2); } |
a0d0e21e |
521 | | UNIOP term |
79072805 |
522 | { $$ = newUNOP($1, 0, $2); } |
4633a7c4 |
523 | | UNIOPSUB term |
524 | { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED, |
525 | append_elem(OP_LIST, $2, scalar($1))); } |
8d063cd8 |
526 | | FUNC0 |
79072805 |
527 | { $$ = newOP($1, 0); } |
ae986130 |
528 | | FUNC0 '(' ')' |
79072805 |
529 | { $$ = newOP($1, 0); } |
4633a7c4 |
530 | | FUNC0SUB |
531 | { $$ = newUNOP(OP_ENTERSUB, 0, |
532 | scalar($1)); } |
03a14243 |
533 | | FUNC1 '(' ')' |
79072805 |
534 | { $$ = newOP($1, OPf_SPECIAL); } |
8d063cd8 |
535 | | FUNC1 '(' expr ')' |
79072805 |
536 | { $$ = newUNOP($1, 0, $3); } |
a0d0e21e |
537 | | PMFUNC '(' term ')' |
79072805 |
538 | { $$ = pmruntime($1, $3, Nullop); } |
a0d0e21e |
539 | | PMFUNC '(' term ',' term ')' |
79072805 |
540 | { $$ = pmruntime($1, $3, $5); } |
541 | | WORD |
378cc40b |
542 | | listop |
8d063cd8 |
543 | ; |
544 | |
79072805 |
545 | listexpr: /* NULL */ |
8990e307 |
546 | { $$ = Nullop; } |
a0d0e21e |
547 | | argexpr |
548 | { $$ = $1; } |
549 | ; |
550 | |
551 | listexprcom: /* NULL */ |
552 | { $$ = Nullop; } |
79072805 |
553 | | expr |
554 | { $$ = $1; } |
a0d0e21e |
555 | | expr ',' |
556 | { $$ = $1; } |
79072805 |
557 | ; |
558 | |
55497cff |
559 | local : LOCAL { $$ = 0; } |
560 | | MY { $$ = 1; } |
561 | ; |
562 | |
563 | my_scalar: scalar |
564 | { in_my = 0; $$ = my($1); } |
565 | ; |
566 | |
79072805 |
567 | amper : '&' indirob |
c07a80fd |
568 | { $$ = newCVREF($1,$2); } |
a687059c |
569 | ; |
570 | |
79072805 |
571 | scalar : '$' indirob |
572 | { $$ = newSVREF($2); } |
a687059c |
573 | ; |
574 | |
79072805 |
575 | ary : '@' indirob |
576 | { $$ = newAVREF($2); } |
577 | ; |
578 | |
579 | hsh : '%' indirob |
580 | { $$ = newHVREF($2); } |
581 | ; |
582 | |
583 | arylen : DOLSHARP indirob |
584 | { $$ = newAVREF($2); } |
585 | ; |
586 | |
587 | star : '*' indirob |
a0d0e21e |
588 | { $$ = newGVREF(0,$2); } |
79072805 |
589 | ; |
590 | |
591 | indirob : WORD |
592 | { $$ = scalar($1); } |
593 | | scalar |
463ee0b2 |
594 | { $$ = scalar($1); } |
79072805 |
595 | | block |
a0d0e21e |
596 | { $$ = scope($1); } |
79072805 |
597 | |
93a17b20 |
598 | | PRIVATEREF |
599 | { $$ = $1; } |
8d063cd8 |
600 | ; |
601 | |
602 | %% /* PROGRAM */ |