/* perly.c
*
- * Copyright (c) 2004 Larry Wall
+ * Copyright (c) 2004, 2005, 2006 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.
YYFPRINTF Args; \
} while (0)
-# define YYDSYMPRINT(Args) \
-do { \
- if (yydebug) \
- yysymprint Args; \
-} while (0)
-
# define YYDSYMPRINTF(Title, Token, Value) \
do { \
if (yydebug) { \
YYFPRINTF (Perl_debug_log, "%s ", Title); \
- yysymprint (aTHX_ Perl_debug_log, Token, Value); \
+ yysymprint (Perl_debug_log, Token, Value); \
YYFPRINTF (Perl_debug_log, "\n"); \
} \
} while (0)
`--------------------------------*/
static void
-yysymprint (pTHX_ PerlIO *yyoutput, int yytype, YYSTYPE *yyvaluep)
+yysymprint(PerlIO * const yyoutput, int yytype, const YYSTYPE * const yyvaluep)
{
- /* Pacify ``unused variable'' warnings. */
- (void) yyvaluep;
-
if (yytype < YYNTOKENS) {
YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
# ifdef YYPRINT
else
YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
- switch (yytype) {
- default:
- break;
- }
YYFPRINTF (yyoutput, ")");
}
* meanings as the local vars in yyparse() of the same name */
static void
-yy_stack_print (pTHX_ short *yyss, short *yyssp, YYSTYPE *yyvs, const char**yyns)
+yy_stack_print (pTHX_ const short *yyss, const short *yyssp, const YYSTYPE *yyvs, const char**yyns)
{
int i;
int start = 1;
yy_reduce_print (pTHX_ int yyrule)
{
int yyi;
- unsigned int yylineno = yyrline[yyrule];
+ const unsigned int yylineno = yyrline[yyrule];
YYFPRINTF (Perl_debug_log, "Reducing stack by rule %d (line %u), ",
yyrule - 1, yylineno);
/* Print the symbols being reduced, and their result. */
#else /* !DEBUGGING */
# define YYDPRINTF(Args)
-# define YYDSYMPRINT(Args)
# define YYDSYMPRINTF(Title, Token, Value)
# define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYERROR_VERBOSE */
-
-/*-----------------------------------------------.
-| Release the memory associated to this symbol. |
-`-----------------------------------------------*/
-
-static void
-yydestruct (int yytype, YYSTYPE *yyvaluep)
-{
- /* Pacify ``unused variable'' warnings. */
- (void) yyvaluep;
-
- switch (yytype) {
- default:
- break;
- }
-}
-
-
-
-
/*----------.
| yyparse. |
`----------*/
int
Perl_yyparse (pTHX)
{
+ dVAR;
int yychar; /* The lookahead symbol. */
YYSTYPE yylval; /* The semantic value of the lookahead symbol. */
int yynerrs; /* Number of syntax errors so far. */
int yytoken = 0;
/* two stacks and their tools:
- `yyss': related to states,
- `yyvs': related to semantic values,
+ yyss: related to states,
+ yyvs: related to semantic values,
Refer to the stacks thru separate pointers, to allow yyoverflow
to reallocate them elsewhere. */
rule. */
int yylen;
+#ifdef PERL_MAD
+ if (PL_madskills)
+ return madparse();
+#endif
+
YYDPRINTF ((Perl_debug_log, "Starting parse\n"));
ENTER; /* force stack free before we return */
PL_yycharp = &yychar; /* so PL_yyerror() can access it */
PL_yylvalp = &yylval; /* so various functions in toke.c can access it */
- yyss_sv = NEWSV(73, YYINITDEPTH * sizeof(short));
- yyvs_sv = NEWSV(73, YYINITDEPTH * sizeof(YYSTYPE));
+ yyss_sv = newSV(YYINITDEPTH * sizeof(short));
+ yyvs_sv = newSV(YYINITDEPTH * sizeof(YYSTYPE));
SAVEFREESV(yyss_sv);
SAVEFREESV(yyvs_sv);
yyss = (short *) SvPVX(yyss_sv);
yyssp = yyss;
yyvsp = yyvs;
#ifdef DEBUGGING
- yyns_sv = NEWSV(73, YYINITDEPTH * sizeof(char *));
+ yyns_sv = newSV(YYINITDEPTH * sizeof(char *));
SAVEFREESV(yyns_sv);
+ /* XXX This seems strange to cast char * to char ** */
yyns = (const char **) SvPVX(yyns_sv);
yynsp = yyns;
#endif
if (yyss + yystacksize - 1 <= yyssp) {
/* Get the current used size of the three stacks, in elements. */
- YYSIZE_T yysize = yyssp - yyss + 1;
+ const YYSIZE_T yysize = yyssp - yyss + 1;
/* Extend the stack our own way. */
if (YYMAXDEPTH <= yystacksize)
yyvs = (YYSTYPE *) SvPVX(yyvs_sv);
#ifdef DEBUGGING
SvGROW(yyns_sv, yystacksize * sizeof(char *));
+ /* XXX This seems strange to cast char * to char ** */
yyns = (const char **) SvPVX(yyns_sv);
if (! yyns)
goto yyoverflowlab;
/* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
if (yychar == YYEMPTY) {
YYDPRINTF ((Perl_debug_log, "Reading a token: "));
+#ifdef PERL_MAD
+ yychar = PL_madskills ? madlex() : yylex();
+#else
yychar = yylex();
+#endif
# ifdef EBCDIC
if (yychar >= 0 && yychar < 255) {
yychar = NATIVE_TO_ASCII(yychar);
yylen = yyr2[yyn];
/* If YYLEN is nonzero, implement the default value of the action:
- `$$ = $1'.
+ "$$ = $1".
Otherwise, the following line sets YYVAL to garbage.
This behavior is undocumented and Bison
*++yynsp = (const char *)(yytname [yyr1[yyn]]);
#endif
- /* Now `shift' the result of the reduction. Determine what state
+ /* Now shift the result of the reduction. Determine what state
that goes to, based on the state we popped back to and the rule
number reduced by. */
if (YYPACT_NINF < yyn && yyn < YYLAST) {
YYSIZE_T yysize = 0;
- int yytype = YYTRANSLATE (yychar);
+ const int yytype = YYTRANSLATE (yychar);
char *yymsg;
int yyx, yycount;
yysize += yystrlen (yytname[yyx]) + 15, yycount++;
yysize += yystrlen ("syntax error, unexpected ") + 1;
yysize += yystrlen (yytname[yytype]);
- New(yymsg, yysize, char *);
+ Newx(yymsg, yysize, char *);
if (yymsg != 0) {
- char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
+ const char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
yyp = yystpcpy (yyp, yytname[yytype]);
if (yycount < 5) {
/* Pop the rest of the stack. */
while (yyss < yyssp) {
YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp);
- yydestruct (yystos[*yyssp], yyvsp);
YYPOPSTACK;
}
YYABORT;
}
YYDSYMPRINTF ("Error: discarding", yytoken, &yylval);
- yydestruct (yytoken, &yylval);
yychar = YYEMPTY;
}
YYABORT;
YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp);
- yydestruct (yystos[yystate], yyvsp);
yyvsp--;
#ifdef DEBUGGING
yynsp--;
return yyresult;
}
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff