/* perly.y
*
* Copyright (c) 1991-2002, 2003, 2004, 2005, 2006 Larry Wall
+ * Copyright (c) 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
/*
* '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 <i_tkval> FORMAT SUB ANONSUB PACKAGE USE
%token <i_tkval> WHILE UNTIL IF UNLESS ELSE ELSIF CONTINUE FOR
%token <i_tkval> GIVEN WHEN DEFAULT
-%token <i_tkval> LOOPEX DOTDOT
+%token <i_tkval> LOOPEX DOTDOT YADAYADA
%token <i_tkval> FUNC0 FUNC1 FUNC UNIOP LSTOP
%token <i_tkval> RELOP EQOP MULOP ADDOP
%token <i_tkval> DOLSHARP DO HASHBRACK NOAMP
%left <i_tkval> ','
%right <i_tkval> ASSIGNOP
%right <i_tkval> '?' ':'
-%nonassoc DOTDOT
+%nonassoc DOTDOT YADAYADA
%left <i_tkval> OROR DORDOR
%left <i_tkval> ANDAND
%left <i_tkval> BITOROP
(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 */
}
| ELSIF '(' mexpr ')' mblock else
{ PL_parser->copline = (line_t)IVAL($1);
- $$ = newCONDOP(0, $3, scope($5), $6);
+ $$ = newCONDOP(0, newSTATEOP(OPf_SPECIAL,NULL,$3), scope($5), $6);
PL_hints |= HINT_BLOCK_SCOPE;
TOKEN_GETMAD($1,$$,'I');
TOKEN_GETMAD($2,$$,'(');
}
;
-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
}
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;
}
| WORD
| listop
+ | YADAYADA
+ {
+ $$ = newLISTOP(OP_DIE, 0, newOP(OP_PUSHMARK, 0),
+ newSVOP(OP_CONST, 0, newSVpvs("Unimplemented")));
+ TOKEN_GETMAD($1,$$,'X');
+ }
;
/* "my" declarations, with optional attributes */