%{
#include "EXTERN.h"
+#define PERL_IN_PERLY_C
#include "perl.h"
-static void
-dep()
-{
- deprecate("\"do\" to call subroutines");
-}
+#define dep() deprecate("\"do\" to call subroutines")
%}
%start prog
+%{
+/* I sense a Big Blue pattern here... */
+#if !defined(OEMVS) && !defined(__OPEN_VM) && !defined(POSIX_BC)
+%}
+
%union {
I32 ival;
char *pval;
GV *gvval;
}
-%token <ival> '{' ')'
+%{
+#endif /* !OEMVS && !__OPEN_VM && !POSIX_BC */
+
+#ifdef USE_PURE_BISON
+#define YYLEX_PARAM (&yychar)
+#endif
+%}
+
+%token <ival> '{'
%token <opval> WORD METHOD FUNCMETH THING PMFUNC PRIVATEREF
%token <opval> FUNC0SUB UNIOPSUB LSTOPSUB
%type <ival> prog decl local format startsub startanonsub startformsub
%type <ival> remember mremember '&'
%type <opval> block mblock lineseq line loop cond else
-%type <opval> expr term scalar ary hsh arylen star amper sideff
+%type <opval> expr term subscripted scalar ary hsh arylen star amper sideff
%type <opval> argexpr nexpr texpr iexpr mexpr mnexpr mtexpr miexpr
%type <opval> listexpr listexprcom indirob listop method
%type <opval> formname subname proto subbody cont my_scalar
%type <pval> label
+%nonassoc PREC_LOW
+%nonassoc LOOPEX
+
%left <ival> OROP
%left ANDOP
%right NOTOP
%right <ival> POWOP
%nonassoc PREINC PREDEC POSTINC POSTDEC
%left ARROW
+%nonassoc <ival> ')'
%left '('
+%left '[' '{'
%% /* RULES */
prog : /* NULL */
{
#if defined(YYDEBUG) && defined(DEBUGGING)
- yydebug = (debug & 1);
+ yydebug = (PL_debug & 1);
#endif
- expect = XSTATE;
+ PL_expect = XSTATE;
}
/*CONTINUED*/ lineseq
{ newPROG($2); }
;
block : '{' remember lineseq '}'
- { if (copline > (line_t)$1)
- copline = $1;
+ { if (PL_copline > (line_t)$1)
+ PL_copline = $1;
$$ = block_end($2, $3); }
;
;
mblock : '{' mremember lineseq '}'
- { if (copline > (line_t)$1)
- copline = $1;
+ { if (PL_copline > (line_t)$1)
+ PL_copline = $1;
$$ = block_end($2, $3); }
;
| lineseq line
{ $$ = append_list(OP_LINESEQ,
(LISTOP*)$1, (LISTOP*)$2);
- pad_reset_pending = TRUE;
- if ($1 && $2) hints |= HINT_BLOCK_SCOPE; }
+ PL_pad_reset_pending = TRUE;
+ if ($1 && $2) PL_hints |= HINT_BLOCK_SCOPE; }
;
line : label cond
}
else {
$$ = Nullop;
- copline = NOLINE;
+ PL_copline = NOLINE;
}
- expect = XSTATE; }
+ PL_expect = XSTATE; }
| label sideff ';'
{ $$ = newSTATEOP(0, $1, $2);
- expect = XSTATE; }
+ PL_expect = XSTATE; }
;
sideff : error
{ $$ = newLOOPOP(OPf_PARENS, 1, scalar($3), $1); }
| expr UNTIL iexpr
{ $$ = newLOOPOP(OPf_PARENS, 1, $3, $1);}
+ | expr FOR expr
+ { $$ = newFOROP(0, Nullch, $2,
+ Nullop, $3, $1, Nullop); }
;
else : /* NULL */
| ELSE mblock
{ $$ = scope($2); }
| ELSIF '(' mexpr ')' mblock else
- { copline = $1;
- $$ = newSTATEOP(0, Nullch,
- newCONDOP(0, $3, scope($5), $6));
- hints |= HINT_BLOCK_SCOPE; }
+ { PL_copline = $1;
+ $$ = newCONDOP(0, $3, scope($5), $6);
+ PL_hints |= HINT_BLOCK_SCOPE; }
;
cond : IF '(' remember mexpr ')' mblock else
- { copline = $1;
+ { PL_copline = $1;
$$ = block_end($3,
newCONDOP(0, $4, scope($6), $7)); }
| UNLESS '(' remember miexpr ')' mblock else
- { copline = $1;
+ { PL_copline = $1;
$$ = block_end($3,
newCONDOP(0, $4, scope($6), $7)); }
;
;
loop : label WHILE '(' remember mtexpr ')' mblock cont
- { copline = $2;
+ { PL_copline = $2;
$$ = block_end($4,
newSTATEOP(0, $1,
newWHILEOP(0, 1, (LOOP*)Nullop,
$2, $5, $7, $8))); }
| label UNTIL '(' remember miexpr ')' mblock cont
- { copline = $2;
+ { PL_copline = $2;
$$ = block_end($4,
newSTATEOP(0, $1,
newWHILEOP(0, 1, (LOOP*)Nullop,
newWHILEOP(0, 1, (LOOP*)Nullop,
$2, scalar($7),
$11, scalar($9)));
- copline = $2;
+ PL_copline = $2;
$$ = block_end($4, newSTATEOP(0, $1, forop)); }
| label block cont /* a block is a loop that happens once */
{ $$ = newSTATEOP(0, $1,
{ $$ = start_subparse(TRUE, 0); }
;
-subname : WORD { char *name = SvPV(((SVOP*)$1)->op_sv, na);
+subname : WORD { STRLEN n_a; char *name = SvPV(((SVOP*)$1)->op_sv,n_a);
if (strEQ(name, "BEGIN") || strEQ(name, "END")
|| strEQ(name, "INIT"))
- CvUNIQUE_on(compcv);
+ CvSPECIAL_on(PL_compcv);
$$ = $1; }
;
;
subbody : block { $$ = $1; }
- | ';' { $$ = Nullop; expect = XSTATE; }
+ | ';' { $$ = Nullop; PL_expect = XSTATE; }
;
package : PACKAGE WORD ';'
;
use : USE startsub
- { CvUNIQUE_on(compcv); /* It's a BEGIN {} */ }
+ { CvSPECIAL_on(PL_compcv); /* It's a BEGIN {} */ }
WORD WORD listexpr ';'
{ utilize($1, $2, $4, $5, $6); }
;
{ $$ = newLOGOP(OP_AND, 0, $1, $3); }
| expr OROP expr
{ $$ = newLOGOP($2, 0, $1, $3); }
- | argexpr
+ | argexpr %prec PREC_LOW
;
argexpr : argexpr ','
{ $$ = $1; }
| argexpr ',' term
{ $$ = append_elem(OP_LIST, $1, $3); }
- | term
+ | term %prec PREC_LOW
;
listop : LSTOP indirob argexpr
append_elem(OP_LIST,
prepend_elem(OP_LIST, scalar($1), $5),
newUNOP(OP_METHOD, 0, $3))); }
+ | term ARROW method
+ { $$ = convert(OP_ENTERSUB, OPf_STACKED,
+ append_elem(OP_LIST, scalar($1),
+ newUNOP(OP_METHOD, 0, $3))); }
| METHOD indirob listexpr
{ $$ = convert(OP_ENTERSUB, OPf_STACKED,
append_elem(OP_LIST,
| scalar
;
+subscripted: star '{' expr ';' '}'
+ { $$ = newBINOP(OP_GELEM, 0, $1, scalar($3)); }
+ | scalar '[' expr ']'
+ { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); }
+ | term ARROW '[' expr ']'
+ { $$ = newBINOP(OP_AELEM, 0,
+ ref(newAVREF($1),OP_RV2AV),
+ scalar($4));}
+ | subscripted '[' expr ']'
+ { $$ = newBINOP(OP_AELEM, 0,
+ ref(newAVREF($1),OP_RV2AV),
+ scalar($3));}
+ | scalar '{' expr ';' '}'
+ { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3));
+ PL_expect = XOPERATOR; }
+ | term ARROW '{' expr ';' '}'
+ { $$ = newBINOP(OP_HELEM, 0,
+ ref(newHVREF($1),OP_RV2HV),
+ jmaybe($4));
+ PL_expect = XOPERATOR; }
+ | subscripted '{' expr ';' '}'
+ { $$ = newBINOP(OP_HELEM, 0,
+ ref(newHVREF($1),OP_RV2HV),
+ jmaybe($3));
+ PL_expect = XOPERATOR; }
+ | term ARROW '(' ')'
+ { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
+ newCVREF(0, scalar($1))); }
+ | term ARROW '(' expr ')'
+ { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
+ append_elem(OP_LIST, $4,
+ newCVREF(0, scalar($1)))); }
+
+ | subscripted '(' expr ')'
+ { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
+ append_elem(OP_LIST, $3,
+ newCVREF(0, scalar($1)))); }
+ | subscripted '(' ')'
+ { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
+ newCVREF(0, scalar($1))); }
+
+
+
term : term ASSIGNOP term
{ $$ = newASSIGNOP(OPf_STACKED, $1, $2, $3); }
| term POWOP term
{ $$ = sawparens($2); }
| '(' ')'
{ $$ = sawparens(newNULLLIST()); }
- | '[' expr ']' %prec '('
+ | '[' expr ']'
{ $$ = newANONLIST($2); }
- | '[' ']' %prec '('
+ | '[' ']'
{ $$ = newANONLIST(Nullop); }
| HASHBRACK expr ';' '}' %prec '('
{ $$ = newANONHASH($2); }
{ $$ = newANONSUB($2, $3, $4); }
| scalar %prec '('
{ $$ = $1; }
- | star '{' expr ';' '}'
- { $$ = newBINOP(OP_GELEM, 0, newGVREF(0,$1), $3); }
| star %prec '('
{ $$ = $1; }
- | scalar '[' expr ']' %prec '('
- { $$ = newBINOP(OP_AELEM, 0, oopsAV($1), scalar($3)); }
- | term ARROW '[' expr ']' %prec '('
- { $$ = newBINOP(OP_AELEM, 0,
- ref(newAVREF($1),OP_RV2AV),
- scalar($4));}
- | term '[' expr ']' %prec '('
- { assertref($1); $$ = newBINOP(OP_AELEM, 0,
- ref(newAVREF($1),OP_RV2AV),
- scalar($3));}
| hsh %prec '('
{ $$ = $1; }
| ary %prec '('
{ $$ = $1; }
| arylen %prec '('
{ $$ = newUNOP(OP_AV2ARYLEN, 0, ref($1, OP_AV2ARYLEN));}
- | scalar '{' expr ';' '}' %prec '('
- { $$ = newBINOP(OP_HELEM, 0, oopsHV($1), jmaybe($3));
- expect = XOPERATOR; }
- | term ARROW '{' expr ';' '}' %prec '('
- { $$ = newBINOP(OP_HELEM, 0,
- ref(newHVREF($1),OP_RV2HV),
- jmaybe($4));
- expect = XOPERATOR; }
- | term '{' expr ';' '}' %prec '('
- { assertref($1); $$ = newBINOP(OP_HELEM, 0,
- ref(newHVREF($1),OP_RV2HV),
- jmaybe($3));
- expect = XOPERATOR; }
- | '(' expr ')' '[' expr ']' %prec '('
+ | subscripted
+ { $$ = $1; }
+ | '(' expr ')' '[' expr ']'
{ $$ = newSLICEOP(0, $5, $2); }
- | '(' ')' '[' expr ']' %prec '('
+ | '(' ')' '[' expr ']'
{ $$ = newSLICEOP(0, $4, Nullop); }
- | ary '[' expr ']' %prec '('
+ | ary '[' expr ']'
{ $$ = prepend_elem(OP_ASLICE,
newOP(OP_PUSHMARK, 0),
newLISTOP(OP_ASLICE, 0,
list($3),
ref($1, OP_ASLICE))); }
- | ary '{' expr ';' '}' %prec '('
+ | ary '{' expr ';' '}'
{ $$ = prepend_elem(OP_HSLICE,
newOP(OP_PUSHMARK, 0),
newLISTOP(OP_HSLICE, 0,
list($3),
ref(oopsHV($1), OP_HSLICE)));
- expect = XOPERATOR; }
+ PL_expect = XOPERATOR; }
| THING %prec '('
{ $$ = $1; }
| amper
{ $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
append_elem(OP_LIST, $3, scalar($2))); }
| DO term %prec UNIOP
- { $$ = newUNOP(OP_DOFILE, 0, scalar($2)); }
+ { $$ = dofile($2); }
| DO block %prec '('
{ $$ = newUNOP(OP_NULL, OPf_SPECIAL, scope($2)); }
| DO WORD '(' ')'
prepend_elem(OP_LIST,
$4,
scalar(newCVREF(0,scalar($2))))); dep();}
- | term ARROW '(' ')' %prec '('
- { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
- newCVREF(0, scalar($1))); }
- | term ARROW '(' expr ')' %prec '('
- { $$ = newUNOP(OP_ENTERSUB, OPf_STACKED,
- append_elem(OP_LIST, $4,
- newCVREF(0, scalar($1)))); }
| LOOPEX
{ $$ = newOP($1, OPf_SPECIAL);
- hints |= HINT_BLOCK_SCOPE; }
+ PL_hints |= HINT_BLOCK_SCOPE; }
| LOOPEX term
{ $$ = newLOOPEX($1,$2); }
| NOTOP argexpr
| listop
;
-listexpr: /* NULL */
+listexpr: /* NULL */ %prec PREC_LOW
{ $$ = Nullop; }
- | argexpr
+ | argexpr %prec PREC_LOW
{ $$ = $1; }
;
;
my_scalar: scalar
- { in_my = 0; $$ = my($1); }
+ { PL_in_my = 0; $$ = my($1); }
;
amper : '&' indirob
indirob : WORD
{ $$ = scalar($1); }
- | scalar
+ | scalar %prec PREC_LOW
{ $$ = scalar($1); }
| block
{ $$ = scope($1); }
projects / p5sagit/p5-mst-13.2.git / blobdiff