/*
* 'I see,' laughed Strider. 'I look foul and feel fair. Is that it?
- * All that is gold does not glitter, not all those who wander are lost.'
+ * All that is gold does not glitter, not all those who wander are lost.'
*
+ * [p.171 of _The Lord of the Rings_, I/x: "Strider"]
+ */
+
+/*
* This file holds the grammar for the Perl language. If edited, you need
* to run regen_perly.pl, which re-creates the files perly.h, perly.tab
* and perly.act which are derived from this.
%token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF
%token <opval> FUNC0SUB UNIOPSUB LSTOPSUB
+%token <opval> PLUGEXPR PLUGSTMT
%token <p_tkval> LABEL
%token <i_tkval> FORMAT SUB ANONSUB PACKAGE USE
%token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR
%type <opval> decl format subrout mysubrout package use peg
-%type <opval> block mblock lineseq line loop cond else
+%type <opval> block package_block mblock lineseq line loop cond else
%type <opval> expr term subscripted scalar ary hsh arylen star amper sideff
%type <opval> argexpr nexpr texpr iexpr mexpr mnexpr miexpr
%type <opval> listexpr listexprcom indirob listop method
;
mydefsv: /* NULL */ /* lexicalize $_ */
- { $$ = (I32) allocmy("$_"); }
+ { $$ = (I32) Perl_allocmy(aTHX_ STR_WITH_LEN("$_"), 0); }
;
progstart:
}
})
}
+ | package_block
+ { $$ = newSTATEOP(0, NULL,
+ newWHILEOP(0, 1, (LOOP*)(OP*)NULL,
+ NOLINE, (OP*)NULL, $1,
+ (OP*)NULL, 0)); }
+ | label PLUGSTMT
+ { $$ = newSTATEOP(0, PVAL($1), $2); }
;
/* An expression which may have a side-effect */
(OP*)NULL, $3, $1, (OP*)NULL);
TOKEN_GETMAD($2,((LISTOP*)$$)->op_first->op_sibling,'w');
}
+ | expr WHEN expr
+ { $$ = newWHENOP($3, scope($1)); }
;
/* else and elsif blocks */
/* Loops: while, until, for, and a bare block */
loop : label WHILE '(' remember texpr ')' mintro mblock cont
{ OP *innerop;
- PL_parser->copline = (line_t)$2;
+ PL_parser->copline = (line_t)IVAL($2);
$$ = block_end($4,
newSTATEOP(0, PVAL($1),
innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL,
| label UNTIL '(' remember iexpr ')' mintro mblock cont
{ OP *innerop;
- PL_parser->copline = (line_t)$2;
+ PL_parser->copline = (line_t)IVAL($2);
$$ = block_end($4,
newSTATEOP(0, PVAL($1),
innerop = newWHILEOP(0, 1, (LOOP*)(OP*)NULL,
/* Switch blocks */
switch : label GIVEN '(' remember mydefsv mexpr ')' mblock
- { PL_parser->copline = (line_t) $2;
+ { PL_parser->copline = (line_t) IVAL($2);
$$ = block_end($4,
newSTATEOP(0, PVAL($1),
newGIVENOP($6, scope($8),
;
format : FORMAT startformsub formname block
- { SvREFCNT_inc_simple_void(PL_compcv);
+ {
+ CV *fmtcv = PL_compcv;
+ SvREFCNT_inc_simple_void(PL_compcv);
#ifdef MAD
$$ = newFORM($2, $3, $4);
prepend_madprops($1->tk_mad, $$, 'F');
newFORM($2, $3, $4);
$$ = (OP*)NULL;
#endif
+ if (CvOUTSIDE(fmtcv) && !CvUNIQUE(CvOUTSIDE(fmtcv))) {
+ SvREFCNT_inc_simple_void(fmtcv);
+ pad_add_anon((SV*)fmtcv, OP_NULL);
+ }
}
;
}
;
-package : PACKAGE WORD ';'
+package : PACKAGE WORD WORD ';'
{
#ifdef MAD
- $$ = package($2);
+ $$ = package($3);
token_getmad($1,$$,'o');
- token_getmad($3,$$,';');
+ if ($2)
+ package_version($2);
+ token_getmad($4,$$,';');
#else
- package($2);
+ package($3);
+ if ($2)
+ package_version($2);
$$ = (OP*)NULL;
#endif
}
;
+package_block: PACKAGE WORD WORD '{' remember
+ {
+ int save_3_latefree = $3->op_latefree;
+ $3->op_latefree = 1;
+ package($3);
+ $3->op_latefree = save_3_latefree;
+ if ($2) {
+ int save_2_latefree = $2->op_latefree;
+ $2->op_latefree = 1;
+ package_version($2);
+ $2->op_latefree = save_2_latefree;
+ }
+ }
+ lineseq '}'
+ { if (PL_parser->copline > (line_t)IVAL($4))
+ PL_parser->copline = (line_t)IVAL($4);
+ $$ = block_end($5, $7);
+ TOKEN_GETMAD($4,$$,'{');
+ TOKEN_GETMAD($8,$$,'}');
+ op_free($3);
+ if ($2)
+ op_free($2);
+ }
+ ;
+
use : USE startsub
{ CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ }
WORD WORD listexpr ';'
token_getmad($7,$$,';');
if (PL_parser->rsfp_filters &&
AvFILLp(PL_parser->rsfp_filters) >= 0)
- append_madprops(newMADPROP('!', MAD_PV, "", 0), $$, 0);
+ append_madprops(newMADPROP('!', MAD_NULL, NULL, 0), $$, 0);
#else
utilize(IVAL($1), $2, $4, $5, $6);
$$ = (OP*)NULL;
{
$$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0),
newSVOP(OP_CONST, 0, newSVpvs("Unimplemented")));
+ TOKEN_GETMAD($1,$$,'X');
}
+ | PLUGEXPR
;
/* "my" declarations, with optional attributes */