/* Output the generated parsing program for bison,
- Copyright (C) 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
+ Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
*/
#include "system.h"
+#include "obstack.h"
+#include "quotearg.h"
#include "getargs.h"
-#include "alloc.h"
+#include "xalloc.h"
#include "files.h"
#include "gram.h"
-#include "state.h"
+#include "LR0.h"
#include "complain.h"
#include "output.h"
#include "lalr.h"
#include "reader.h"
+#include "conflicts.h"
extern void berror PARAMS((const char *));
-extern char **tags;
-extern short *user_toknums;
-extern int final_state;
-extern errs **err_table;
static int nvectors;
static inline void
-output_short_table (FILE *out,
- const char *table_name,
- short *short_table,
- short first_value,
- short begin, short end)
+output_short_or_char_table (struct obstack *oout,
+ const char *comment,
+ const char *type,
+ const char *table_name,
+ short *short_table,
+ short first_value,
+ short begin, short end)
{
int i, j;
- fprintf (out, "static const short %s[] = {%6d", table_name, first_value);
+ if (comment)
+ obstack_fgrow1 (oout, "/* %s. */\n", comment);
+
+ obstack_fgrow3 (oout, "static const %s %s[] =\n{\n %6d",
+ type, table_name, first_value);
- j = 10;
+ j = 1;
for (i = begin; i < end; i++)
{
- putc (',', out);
+ obstack_1grow (oout, ',');
if (j >= 10)
{
- putc ('\n', out);
+ obstack_sgrow (oout, "\n ");
j = 1;
}
else
j++;
}
- fprintf (out, "%6d", short_table[i]);
+ obstack_fgrow1 (oout, "%6d", short_table[i]);
}
- fprintf (out, "\n};\n");
+ obstack_sgrow (oout, "\n};\n");
+}
+
+
+static inline void
+output_short_table (struct obstack *oout,
+ const char *comment,
+ const char *table_name,
+ short *short_table,
+ short first_value,
+ short begin, short end)
+{
+ output_short_or_char_table (oout, comment, "short", table_name, short_table,
+ first_value, begin, end);
}
| certain files. |
`--------------------------------------------------------------*/
+/* Don't put the `%s' insides quotes, since it quotearg puts them. */
+
#define GUARDSTR \
"\n\
-#include \"%s\"\n\
+#include %s\n\
extern int yyerror;\n\
extern int yycost;\n\
extern char * yymsg;\n\
#define ACTSTR \
"\n\
-#include \"%s\"\n\
+#include %s\n\
extern YYSTYPE yyval;\n\
extern int yychar;\n\
\n\
void
output_headers (void)
{
+ char *attrsfile_quoted = 0;
+
if (semantic_parser)
- fprintf (fguard, GUARDSTR, attrsfile);
+ {
+ /* FIXME: This is *buggy*. ATTRSFILE is not computed yet, since
+ we are waiting for the full input file to have been read to
+ be sure of the output file name. So basically, here, a SEGV
+ is guaranteed. OTOH, currently semantic parsers are not
+ supported. */
+ attrsfile_quoted = quotearg_style (c_quoting_style, attrsfile);
+ obstack_fgrow1 (&guard_obstack, GUARDSTR, attrsfile_quoted);
+ }
- if (noparserflag)
+ if (no_parser_flag)
return;
- fprintf (faction, (semantic_parser ? ACTSTR : ACTSTR_SIMPLE), attrsfile);
-/* if (semantic_parser) JF moved this below
- fprintf(ftable, "#include \"%s\"\n", attrsfile);
- fprintf(ftable, "#include <stdio.h>\n\n");
-*/
+ if (semantic_parser)
+ obstack_fgrow1 (&action_obstack, ACTSTR, attrsfile_quoted);
+ else
+ obstack_sgrow (&action_obstack, ACTSTR_SIMPLE);
/* Rename certain symbols if -p was specified. */
if (spec_name_prefix)
{
- fprintf (ftable, "#define yyparse %sparse\n", spec_name_prefix);
- fprintf (ftable, "#define yylex %slex\n", spec_name_prefix);
- fprintf (ftable, "#define yyerror %serror\n", spec_name_prefix);
- fprintf (ftable, "#define yylval %slval\n", spec_name_prefix);
- fprintf (ftable, "#define yychar %schar\n", spec_name_prefix);
- fprintf (ftable, "#define yydebug %sdebug\n", spec_name_prefix);
- fprintf (ftable, "#define yynerrs %snerrs\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yyparse %sparse\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yylex %slex\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yyerror %serror\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yylval %slval\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yychar %schar\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yydebug %sdebug\n", spec_name_prefix);
+ obstack_fgrow1 (&table_obstack,
+ "#define yynerrs %snerrs\n", spec_name_prefix);
}
}
output_trailers (void)
{
if (semantic_parser)
- fprintf (fguard, "\n }\n}\n");
+ obstack_sgrow (&guard_obstack, "\n }\n}\n");
- fprintf (faction, "\n");
+ obstack_1grow (&action_obstack, '\n');
- if (noparserflag)
+ if (no_parser_flag)
return;
if (semantic_parser)
- fprintf (faction, " }\n");
- fprintf (faction, "}\n");
+ obstack_sgrow (&action_obstack, " }\n");
+
+ obstack_sgrow (&action_obstack, "}\n");
}
static void
output_token_translations (void)
{
- int i, j;
-/* short *sp; JF unused */
+ obstack_sgrow (&table_obstack, "\
+\n\
+/* YYRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */\n");
if (translations)
{
- fprintf (ftable,
- "\n#define YYTRANSLATE(x) ((unsigned)(x) <= %d ? yytranslate[x] : %d)\n",
+ obstack_fgrow2 (&table_obstack,
+ "#define YYTRANSLATE(x) ((unsigned)(x) <= %d ? yytranslate[x] : %d)\
+\n\
+\n",
max_user_token_number, nsyms);
- if (ntokens < 127) /* play it very safe; check maximum element value. */
- fprintf (ftable, "\nstatic const char yytranslate[] = { 0");
- else
- fprintf (ftable, "\nstatic const short yytranslate[] = { 0");
-
- j = 10;
- for (i = 1; i <= max_user_token_number; i++)
- {
- putc (',', ftable);
-
- if (j >= 10)
- {
- putc ('\n', ftable);
- j = 1;
- }
- else
- {
- j++;
- }
-
- fprintf (ftable, "%6d", token_translations[i]);
- }
-
- fprintf (ftable, "\n};\n");
+ output_short_or_char_table (&table_obstack,
+ "YYRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX",
+ ntokens < 127 ? "char" : "short",
+ "yytranslate", token_translations,
+ 0, 1, max_user_token_number + 1);
}
else
{
- fprintf (ftable, "\n#define YYTRANSLATE(x) (x)\n");
+ obstack_sgrow (&table_obstack,
+ "\n#define YYTRANSLATE(x) (x)\n");
}
}
static void
output_gram (void)
{
- int j;
- short *sp;
-
/* With the ordinary parser,
yyprhs and yyrhs are needed only for yydebug. */
- /* With the noparser option, all tables are generated */
- if (!semantic_parser && !noparserflag)
- fprintf (ftable, "\n#if YYDEBUG != 0\n");
+ /* With the no_parser option, all tables are generated */
+ if (!semantic_parser && !no_parser_flag)
+ obstack_sgrow (&table_obstack, "\n#if YYDEBUG != 0\n");
- output_short_table (ftable, "yyprhs", rrhs,
+ output_short_table (&table_obstack, NULL, "yyprhs", rrhs,
0, 1, nrules + 1);
- fprintf (ftable, "\nstatic const short yyrhs[] = {%6d", ritem[0]);
-
- j = 10;
- for (sp = ritem + 1; *sp; sp++)
- {
- putc (',', ftable);
+ {
+ size_t yyrhs_size = 1;
+ short *yyrhs, *sp;
+ int i;
- if (j >= 10)
- {
- putc ('\n', ftable);
- j = 1;
- }
- else
- {
- j++;
- }
+ for (sp = ritem + 1; *sp; sp++)
+ ++yyrhs_size;
+ yyrhs = XMALLOC (short, yyrhs_size);
- if (*sp > 0)
- fprintf (ftable, "%6d", *sp);
- else
- fprintf (ftable, " 0");
- }
+ for (sp = ritem + 1, i = 1; *sp; ++sp, ++i)
+ yyrhs[i] = *sp > 0 ? *sp : 0;
- fprintf (ftable, "\n};\n");
+ output_short_table (&table_obstack, NULL, "yyrhs", yyrhs,
+ ritem[0], 1, yyrhs_size);
+ XFREE (yyrhs);
+ }
- if (!semantic_parser && !noparserflag)
- fprintf (ftable, "\n#endif\n");
+ if (!semantic_parser && !no_parser_flag)
+ obstack_sgrow (&table_obstack, "\n#endif\n");
}
static void
output_stos (void)
{
- output_short_table (ftable, "yystos", accessing_symbol,
+ output_short_table (&table_obstack, NULL, "yystos", accessing_symbol,
0, 1, nstates);
}
{
int i;
int j;
+ short *short_tab = NULL;
- fputs ("\n\
-#if YYDEBUG != 0\n\
-/* YYRLINE[yyn]: source line where rule number YYN was defined. */\n",
- ftable);
+ obstack_sgrow (&table_obstack, "\n\
+#if YYDEBUG != 0\n");
- output_short_table (ftable, "yyrline", rline,
+ output_short_table (&table_obstack,
+ "YYRLINE[YYN] -- source line where rule number YYN was defined",
+ "yyrline", rline,
0, 1, nrules + 1);
- fputs ("#endif\n\n", ftable);
+ obstack_sgrow (&table_obstack, "#endif\n\n");
- if (toknumflag || noparserflag)
+ if (token_table_flag || no_parser_flag)
{
- fprintf (ftable, "#define YYNTOKENS %d\n", ntokens);
- fprintf (ftable, "#define YYNNTS %d\n", nvars);
- fprintf (ftable, "#define YYNRULES %d\n", nrules);
- fprintf (ftable, "#define YYNSTATES %d\n", nstates);
- fprintf (ftable, "#define YYMAXUTOK %d\n\n", max_user_token_number);
+ obstack_fgrow1 (&table_obstack, "#define YYNTOKENS %d\n", ntokens);
+ obstack_fgrow1 (&table_obstack, "#define YYNNTS %d\n", nvars);
+ obstack_fgrow1 (&table_obstack, "#define YYNRULES %d\n", nrules);
+ obstack_fgrow1 (&table_obstack, "#define YYNSTATES %d\n", nstates);
+ obstack_fgrow1 (&table_obstack, "#define YYMAXUTOK %d\n\n",
+ max_user_token_number);
}
- if (!toknumflag && !noparserflag)
- fprintf (ftable, "\n#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)\n\n");
-
/* Output the table of symbol names. */
-
- fprintf (ftable,
- "static const char * const yytname[] = { \"%s\"", tags[0]);
-
- j = strlen (tags[0]) + 44;
- for (i = 1; i < nsyms; i++)
+ if (!token_table_flag && !no_parser_flag)
+ obstack_sgrow (&table_obstack,
+ "\n#if YYDEBUG != 0 || defined YYERROR_VERBOSE\n\n");
+ obstack_sgrow (&table_obstack, "\
+/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */\n");
+ obstack_sgrow (&table_obstack,
+ "static const char *const yytname[] =\n{\n ");
+
+ j = 0;
+ for (i = 0; i < nsyms; i++)
/* this used to be i<=nsyms, but that output a final "" symbol
almost by accident */
{
+ /* Width of the next token, including the two quotes, the coma
+ and the space. */
+ int strsize = 4;
char *p;
- putc (',', ftable);
- j++;
- if (j > 75)
+ for (p = tags[i]; p && *p; p++)
+ if (*p == '"' || *p == '\\' || *p == '\n' || *p == '\t'
+ || *p == '\b')
+ strsize += 2;
+ else if (*p < 040 || *p >= 0177)
+ strsize += 4;
+ else
+ strsize++;
+
+ if (j + strsize > 75)
{
- putc ('\n', ftable);
- j = 0;
+ obstack_sgrow (&table_obstack, "\n ");
+ j = 2;
}
- putc ('\"', ftable);
- j++;
-
+ obstack_1grow (&table_obstack, '\"');
for (p = tags[i]; p && *p; p++)
{
if (*p == '"' || *p == '\\')
- {
- fprintf (ftable, "\\%c", *p);
- j += 2;
- }
+ obstack_fgrow1 (&table_obstack, "\\%c", *p);
else if (*p == '\n')
- {
- fprintf (ftable, "\\n");
- j += 2;
- }
+ obstack_sgrow (&table_obstack, "\\n");
else if (*p == '\t')
- {
- fprintf (ftable, "\\t");
- j += 2;
- }
+ obstack_sgrow (&table_obstack, "\\t");
else if (*p == '\b')
- {
- fprintf (ftable, "\\b");
- j += 2;
- }
+ obstack_sgrow (&table_obstack, "\\b");
else if (*p < 040 || *p >= 0177)
- {
- fprintf (ftable, "\\%03o", *p);
- j += 4;
- }
+ obstack_fgrow1 (&table_obstack, "\\%03o", *p);
else
- {
- putc (*p, ftable);
- j++;
- }
+ obstack_1grow (&table_obstack, *p);
}
- putc ('\"', ftable);
- j++;
+ obstack_sgrow (&table_obstack, "\", ");
+ j += strsize;
}
/* add a NULL entry to list of tokens */
- fprintf (ftable, ", NULL\n};\n");
+ obstack_sgrow (&table_obstack, "NULL\n};\n");
- if (!toknumflag && !noparserflag)
- fprintf (ftable, "#endif\n\n");
+ if (!token_table_flag && !no_parser_flag)
+ obstack_sgrow (&table_obstack, "#endif\n\n");
/* Output YYTOKNUM. */
- if (toknumflag)
+ if (token_table_flag)
{
- output_short_table (ftable, "yytoknum", user_toknums,
+ output_short_table (&table_obstack,
+ "YYTOKNUM[YYLEX] -- Index in YYTNAME corresponding to YYLEX",
+ "yytoknum", user_toknums,
0, 1, ntokens + 1);
}
/* Output YYR1. */
- fputs ("\
-/* YYR1[YYN]: Symbol number of symbol that rule YYN derives. */\n", ftable);
-
- output_short_table (ftable, "yyr1", rlhs,
+ output_short_table (&table_obstack,
+ "YYR1[YYN] -- Symbol number of symbol that rule YYN derives",
+ "yyr1", rlhs,
0, 1, nrules + 1);
- FREE (rlhs + 1);
+ XFREE (rlhs + 1);
- putc ('\n', ftable);
+ obstack_1grow (&table_obstack, '\n');
/* Output YYR2. */
- fputs ("\
-/* YYR2[YYN]: Number of symbols composing right hand side of rule YYN. */\n\
-static const short yyr2[] = { 0", ftable);
- j = 10;
+ short_tab = XMALLOC (short, nrules + 1);
for (i = 1; i < nrules; i++)
- {
- putc (',', ftable);
-
- if (j >= 10)
- {
- putc ('\n', ftable);
- j = 1;
- }
- else
- {
- j++;
- }
-
- fprintf (ftable, "%6d", rrhs[i + 1] - rrhs[i] - 1);
- }
+ short_tab[i] = rrhs[i + 1] - rrhs[i] - 1;
+ short_tab[nrules] = nitems - rrhs[nrules] - 1;
+ output_short_table (&table_obstack,
+ "YYR2[YYN] -- Number of symbols composing right hand side of rule YYN",
+ "yyr2", short_tab,
+ 0, 1, nrules + 1);
+ obstack_1grow (&table_obstack, '\n');
- putc (',', ftable);
- if (j >= 10)
- putc ('\n', ftable);
+ XFREE (short_tab);
- fprintf (ftable, "%6d\n};\n", nitems - rrhs[nrules] - 1);
- FREE (rrhs + 1);
+ XFREE (rrhs + 1);
}
static void
output_defines (void)
{
- fprintf (ftable, "\n\n#define\tYYFINAL\t\t%d\n", final_state);
- fprintf (ftable, "#define\tYYFLAG\t\t%d\n", MINSHORT);
- fprintf (ftable, "#define\tYYNTBASE\t%d\n", ntokens);
+ obstack_fgrow1 (&table_obstack, "\n\n#define\tYYFINAL\t\t%d\n", final_state);
+ obstack_fgrow1 (&table_obstack, "#define\tYYFLAG\t\t%d\n", MINSHORT);
+ obstack_fgrow1 (&table_obstack, "#define\tYYNTBASE\t%d\n", ntokens);
}
if (count == 0)
return;
- froms[state] = sp1 = sp = NEW2 (count, short);
- tos[state] = sp2 = NEW2 (count, short);
+ froms[state] = sp1 = sp = XCALLOC (short, count);
+ tos[state] = sp2 = XCALLOC (short, count);
for (i = 0; i < ntokens; i++)
{
token_actions (void)
{
int i;
- short *yydefact = NEW2 (nstates, short);
+ short *yydefact = XCALLOC (short, nstates);
- actrow = NEW2 (ntokens, short);
+ actrow = XCALLOC (short, ntokens);
for (i = 0; i < nstates; ++i)
{
yydefact[i] = action_row (i);
save_row (i);
}
- FREE (actrow);
+ XFREE (actrow);
- output_short_table (ftable, "yydefact", yydefact,
+ output_short_table (&table_obstack,
+ "YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE\n\
+ doesn't specify something else to do. Zero means the default is an\n\
+ error",
+ "yydefact", yydefact,
yydefact[0], 1, nstates);
- FREE (yydefact);
+ obstack_1grow (&table_obstack, '\n');
+ XFREE (yydefact);
}
{
shifts *sp, *sptmp; /* JF derefrenced freed ptr */
- FREE (shift_table);
+ XFREE (shift_table);
for (sp = first_shift; sp; sp = sptmp)
{
sptmp = sp->next;
- FREE (sp);
+ XFREE (sp);
}
}
{
reductions *rp, *rptmp; /* JF fixed freed ptr */
- FREE (reduction_table);
+ XFREE (reduction_table);
for (rp = first_reduction; rp; rp = rptmp)
{
rptmp = rp->next;
- FREE (rp);
+ XFREE (rp);
}
}
save_column (int symbol, int default_state)
{
int i;
- int m;
- int n;
short *sp;
short *sp1;
short *sp2;
int count;
int symno;
- m = goto_map[symbol];
- n = goto_map[symbol + 1];
+ short begin = goto_map[symbol];
+ short end = goto_map[symbol + 1];
count = 0;
- for (i = m; i < n; i++)
+ for (i = begin; i < end; i++)
{
if (to_state[i] != default_state)
count++;
symno = symbol - ntokens + nstates;
- froms[symno] = sp1 = sp = NEW2 (count, short);
- tos[symno] = sp2 = NEW2 (count, short);
+ froms[symno] = sp1 = sp = XCALLOC (short, count);
+ tos[symno] = sp2 = XCALLOC (short, count);
- for (i = m; i < n; i++)
+ for (i = begin; i < end; i++)
{
if (to_state[i] != default_state)
{
static void
goto_actions (void)
{
- int i, j, k;
-
- state_count = NEW2 (nstates, short);
+ int i;
- k = default_goto (ntokens);
- fprintf (ftable, "\nstatic const short yydefgoto[] = {%6d", k);
- save_column (ntokens, k);
+ short *yydefgoto = XMALLOC (short, nsyms - ntokens);
+ state_count = XCALLOC (short, nstates);
- j = 10;
- for (i = ntokens + 1; i < nsyms; i++)
+ for (i = ntokens; i < nsyms; ++i)
{
- putc (',', ftable);
-
- if (j >= 10)
- {
- putc ('\n', ftable);
- j = 1;
- }
- else
- {
- j++;
- }
-
- k = default_goto (i);
- fprintf (ftable, "%6d", k);
- save_column (i, k);
+ int default_state = default_goto (i);
+ save_column (i, default_state);
+ yydefgoto[i - ntokens] = default_state;
}
- fprintf (ftable, "\n};\n");
- FREE (state_count);
+ output_short_table (&table_obstack, NULL, "yydefgoto", yydefgoto,
+ yydefgoto[0], 1, nsyms - ntokens);
+
+ XFREE (state_count);
+ XFREE (yydefgoto);
}
int t;
int w;
- order = NEW2 (nvectors, short);
+ order = XCALLOC (short, nvectors);
nentries = 0;
for (i = 0; i < nvectors; i++)
i = order[vector];
t = tally[i];
- if (t == 0)
- berror ("pack_vector");
+ assert (t);
from = froms[i];
to = tos[i];
int place;
int state;
- base = NEW2 (nvectors, short);
- pos = NEW2 (nentries, short);
- table = NEW2 (MAXTABLE, short);
- check = NEW2 (MAXTABLE, short);
+ base = XCALLOC (short, nvectors);
+ pos = XCALLOC (short, nentries);
+ table = XCALLOC (short, MAXTABLE);
+ check = XCALLOC (short, MAXTABLE);
lowzero = 0;
high = 0;
for (i = 0; i < nvectors; i++)
{
if (froms[i])
- FREE (froms[i]);
+ XFREE (froms[i]);
if (tos[i])
- FREE (tos[i]);
+ XFREE (tos[i]);
}
- FREE (froms);
- FREE (tos);
- FREE (pos);
+ XFREE (froms);
+ XFREE (tos);
+ XFREE (pos);
}
/* the following functions output yytable, yycheck
static void
output_base (void)
{
- output_short_table (ftable, "yypact", base,
+ output_short_table (&table_obstack, NULL, "yypact", base,
base[0], 1, nstates);
- putc ('\n', ftable);
+ obstack_1grow (&table_obstack, '\n');
- output_short_table (ftable, "yypgoto", base,
+ output_short_table (&table_obstack, NULL, "yypgoto", base,
base[nstates], nstates + 1, nvectors);
- FREE (base);
+ XFREE (base);
}
static void
output_table (void)
{
- fprintf (ftable, "\n\n#define\tYYLAST\t\t%d\n\n\n", high);
- output_short_table (ftable, "yytable", table,
+ obstack_fgrow1 (&table_obstack, "\n\n#define\tYYLAST\t\t%d\n\n\n", high);
+ output_short_table (&table_obstack, NULL, "yytable", table,
table[0], 1, high + 1);
- FREE (table);
+ XFREE (table);
}
static void
output_check (void)
{
- output_short_table (ftable, "yycheck", check,
+ output_short_table (&table_obstack, NULL, "yycheck", check,
check[0], 1, high + 1);
- FREE (check);
+ XFREE (check);
}
/* compute and output yydefact, yydefgoto, yypact, yypgoto, yytable
{
nvectors = nstates + nvars;
- froms = NEW2 (nvectors, short *);
- tos = NEW2 (nvectors, short *);
- tally = NEW2 (nvectors, short);
- width = NEW2 (nvectors, short);
+ froms = XCALLOC (short *, nvectors);
+ tos = XCALLOC (short *, nvectors);
+ tally = XCALLOC (short, nvectors);
+ width = XCALLOC (short, nvectors);
token_actions ();
free_shifts ();
free_reductions ();
- FREE (lookaheads);
- FREE (LA);
- FREE (LAruleno);
- FREE (accessing_symbol);
+ XFREE (lookaheads);
+ XFREE (LA);
+ XFREE (LAruleno);
+ XFREE (accessing_symbol);
goto_actions ();
- FREE (goto_map + ntokens);
- FREE (from_state);
- FREE (to_state);
+ XFREE (goto_map + ntokens);
+ XFREE (from_state);
+ XFREE (to_state);
sort_actions ();
pack_table ();
- putc ('\n', ftable);
+ obstack_1grow (&table_obstack, '\n');
output_base ();
output_table ();
- putc ('\n', ftable);
+ obstack_1grow (&table_obstack, '\n');
output_check ();
}
-/* copy the parser code into the ftable file at the end. */
+/*------------------------------------------.
+| Copy the parser code into TABLE_OBSTACK. |
+`------------------------------------------*/
static void
output_parser (void)
{
int c;
-#ifdef DONTDEF
- FILE *fpars;
-#else
-#define fpars fparser
-#endif
+ FILE *fskel;
+ size_t line;
+ int actions_dumped = 0;
if (pure_parser)
- fprintf (ftable, "#define YYPURE 1\n\n");
-
-#ifdef DONTDEF /* JF no longer needed 'cuz open_extra_files changes the
- currently open parser from bison.simple to bison.hairy */
- if (semantic_parser)
- fpars = fparser;
- else
- fpars = fparser1;
-#endif
+ obstack_sgrow (&table_obstack, "#define YYPURE 1\n\n");
/* Loop over lines in the standard parser file. */
+ if (!skeleton)
+ {
+ if (semantic_parser)
+ skeleton = skeleton_find ("BISON_HAIRY", BISON_HAIRY);
+ else
+ skeleton = skeleton_find ("BISON_SIMPLE", BISON_SIMPLE);
+ }
+ fskel = xfopen (skeleton, "r");
+
+ /* Set LINE to 2, not 1: `#line LINENUM' -- Here LINENUM is a
+ decimal integer constant. This specifies that the line number of
+ the *following* line of input, in its original source file, was
+ LINENUM. */
+ line = 2;
while (1)
{
- int write_line = 1;
+ enum line_type_e
+ {
+ regular_line,
+ sync_line, /* #line. */
+ actions_line /* %% actions. */
+ };
+ enum line_type_e line_type = regular_line;
- c = getc (fpars);
+ c = getc (fskel);
- /* See if the line starts with `#line.
- If so, set write_line to 0. */
- if (nolinesflag)
- if (c == '#')
- {
- c = getc (fpars);
- if (c == 'l')
- {
- c = getc (fpars);
- if (c == 'i')
- {
- c = getc (fpars);
- if (c == 'n')
- {
- c = getc (fpars);
- if (c == 'e')
- write_line = 0;
+ /* Is this line special? */
+ if (c == '#')
+ {
+ /* See if it's a `#line' line. */
+ if ((c = getc (fskel)) == 'l')
+ if ((c = getc (fskel)) == 'i')
+ if ((c = getc (fskel)) == 'n')
+ if ((c = getc (fskel)) == 'e')
+ line_type = sync_line;
+ else
+ obstack_sgrow (&table_obstack, "#lin");
+ else
+ obstack_sgrow (&table_obstack, "#li");
+ else
+ obstack_sgrow (&table_obstack, "#l");
+ else
+ obstack_sgrow (&table_obstack, "#");
+ }
+ else if (c == '%')
+ {
+ /* See if it's a `%% actions' line. */
+ if ((c = getc (fskel)) == '%')
+ if ((c = getc (fskel)) == ' ')
+ if ((c = getc (fskel)) == 'a')
+ if ((c = getc (fskel)) == 'c')
+ if ((c = getc (fskel)) == 't')
+ if ((c = getc (fskel)) == 'i')
+ if ((c = getc (fskel)) == 'o')
+ if ((c = getc (fskel)) == 'n')
+ if ((c = getc (fskel)) == 's')
+ line_type = actions_line;
+ else
+ obstack_sgrow (&table_obstack, "%% action");
else
- fprintf (ftable, "#lin");
- }
+ obstack_sgrow (&table_obstack, "%% actio");
+ else
+ obstack_sgrow (&table_obstack, "%% acti");
else
- fprintf (ftable, "#li");
- }
+ obstack_sgrow (&table_obstack, "%% act");
+ else
+ obstack_sgrow (&table_obstack, "%% ac");
else
- fprintf (ftable, "#l");
- }
+ obstack_sgrow (&table_obstack, "%% a");
+ else
+ obstack_sgrow (&table_obstack, "%% ");
else
- fprintf (ftable, "#");
- }
+ obstack_sgrow (&table_obstack, "%%");
+ else
+ obstack_sgrow (&table_obstack, "%");
+ }
+
+ switch (line_type)
+ {
+ case sync_line:
+ if (!no_lines_flag)
+ obstack_fgrow2 (&table_obstack, "#line %d %s\n",
+ line, quotearg_style (c_quoting_style, skeleton));
- /* now write out the line... */
- for (; c != '\n' && c != EOF; c = getc (fpars))
- if (write_line)
+ /* Skip the end of line. */
+ for (; c != '\n' && c != EOF; c = getc (fskel))
+ /* nothing */;
+ break;
+
+ case actions_line:
{
- if (c == '$')
- {
- /* `$' in the parser file indicates where to put the actions.
- Copy them in at this point. */
- rewind (faction);
- for (c = getc (faction); c != EOF; c = getc (faction))
- putc (c, ftable);
- }
- else
- putc (c, ftable);
+ size_t size = obstack_object_size (&action_obstack);
+
+ actions_dumped++;
+ assert (actions_dumped == 1);
+ obstack_grow (&table_obstack,
+ obstack_finish (&action_obstack),
+ size);
}
+
+ /* Skip the end of line. */
+ for (; c != '\n' && c != EOF; c = getc (fskel))
+ /* nothing */;
+ break;
+
+ case regular_line:
+ for (; c != '\n' && c != EOF; c = getc (fskel))
+ obstack_1grow (&table_obstack, c);
+ }
+
if (c == EOF)
break;
- putc (c, ftable);
+ obstack_1grow (&table_obstack, c);
+ line++;
}
+ assert (actions_dumped == 1);
+ xfclose (fskel);
}
static void
{
int c;
- if (!nolinesflag)
- fprintf (ftable, "#line %d \"%s\"\n", lineno, infile);
+ if (!no_lines_flag)
+ obstack_fgrow2 (&table_obstack, "#line %d %s\n",
+ lineno, quotearg_style (c_quoting_style, infile));
- c = getc (finput);
- while (c != EOF)
- {
- putc (c, ftable);
- c = getc (finput);
- }
+ while ((c = getc (finput)) != EOF)
+ obstack_1grow (&table_obstack, c);
}
{
core *cp, *cptmp;
- FREE (state_table);
+ XFREE (state_table);
for (cp = first_state; cp; cp = cptmp)
{
cptmp = cp->next;
- FREE (cp);
+ XFREE (cp);
}
}
void
output (void)
{
- int c;
-
/* output_token_defines(ftable); / * JF put out token defines FIRST */
- if (!semantic_parser) /* JF Put out other stuff */
+
+ /* If using a simple parser the definition of YYSTYPE are put into
+ TABLE_OBSTACK. */
+ if (!semantic_parser)
{
- rewind (fattrs);
- while ((c = getc (fattrs)) != EOF)
- putc (c, ftable);
+ size_t size = obstack_object_size (&attrs_obstack);
+ obstack_grow (&table_obstack, obstack_finish (&attrs_obstack), size);
}
- reader_output_yylsp (ftable);
- if (debugflag)
- fputs ("\
+ reader_output_yylsp (&table_obstack);
+ if (debug_flag)
+ obstack_sgrow (&table_obstack, "\
#ifndef YYDEBUG\n\
-#define YYDEBUG 1\n\
+# define YYDEBUG 1\n\
#endif\n\
-\n",
- ftable);
+\n");
if (semantic_parser)
- fprintf (ftable, "#include \"%s\"\n", attrsfile);
+ obstack_fgrow1 (&table_obstack, "#include %s\n",
+ quotearg_style (c_quoting_style, attrsfile));
- if (!noparserflag)
- fprintf (ftable, "#include <stdio.h>\n\n");
+ if (!no_parser_flag)
+ obstack_sgrow (&table_obstack, "#include <stdio.h>\n\n");
/* Make "const" do nothing if not in ANSI C. */
- fputs ("\
+ obstack_sgrow (&table_obstack, "\
#ifndef __cplusplus\n\
# ifndef __STDC__\n\
# define const\n\
# endif\n\
#endif\n\
-\n",
- ftable);
+\n");
free_itemsets ();
output_defines ();
/* if (semantic_parser) */
/* This is now unconditional because debugging printouts can use it. */
output_gram ();
- FREE (ritem);
+ XFREE (ritem);
if (semantic_parser)
output_stos ();
output_rule_data ();
output_actions ();
- if (!noparserflag)
+ if (!no_parser_flag)
output_parser ();
output_program ();
}
projects / bison.git / blobdiff