*/
#include "system.h"
-#include "obstack.h"
#include "quotearg.h"
#include "getargs.h"
-#include "xalloc.h"
#include "files.h"
#include "gram.h"
#include "LR0.h"
#include "conflicts.h"
#include "muscle_tab.h"
-extern void berror PARAMS((const char *));
static int nvectors;
static int nentries;
-static short **froms;
-static short **tos;
-static short *tally;
-static short *width;
-static short *actrow;
-static short *state_count;
-static short *order;
-static short *base;
-static short *pos;
-static short *table;
-static short *check;
+static short **froms = NULL;
+static short **tos = NULL;
+static short *tally = NULL;
+static short *width = NULL;
+static short *actrow = NULL;
+static short *state_count = NULL;
+static short *order = NULL;
+static short *base = NULL;
+static short *pos = NULL;
+static short *table = NULL;
+static short *check = NULL;
static int lowzero;
static int high;
struct obstack muscle_obstack;
-struct obstack output_obstack;
+static struct obstack format_obstack;
+
+int error_verbose = 0;
+
+/* Returns the number of lines of S. */
+static size_t
+get_lines_number (const char *s)
+{
+ size_t lines = 0;
+
+ size_t i;
+ for (i = 0; s[i]; ++i)
+ if (s[i] == '\n')
+ ++lines;
+
+ return lines;
+}
+
/* FIXME. */
static inline void
-output_table_data (struct obstack *oout,
- short *table_data,
- short first,
- short begin,
- short end)
+output_table_data (struct obstack *oout,
+ short *table_data,
+ short first,
+ int begin,
+ int end)
{
int i;
int j = 1;
-
+
obstack_fgrow1 (oout, "%6d", first);
for (i = begin; i < end; ++i)
{
static void
output_token_translations (void)
{
- output_table_data (&output_obstack, token_translations,
+ output_table_data (&format_obstack, token_translations,
0, 1, max_user_token_number + 1);
- muscle_insert ("translate", obstack_finish (&output_obstack));
+ muscle_insert ("translate", obstack_finish (&format_obstack));
+ XFREE (token_translations);
}
static void
output_gram (void)
{
- output_table_data (&output_obstack, rrhs,
- 0, 1, nrules + 1);
- muscle_insert ("prhs", obstack_finish (&output_obstack));
-
+ {
+ int i;
+ short *values = XCALLOC (short, nrules + 1);
+ for (i = 0; i < nrules + 1; ++i)
+ values[i] = rule_table[i].rhs;
+ output_table_data (&format_obstack, values,
+ 0, 1, nrules + 1);
+ XFREE (values);
+ }
+
+ muscle_insert ("prhs", obstack_finish (&format_obstack));
+
{
size_t yyrhs_size = 1;
short *yyrhs, *sp;
for (sp = ritem + 1, i = 1; *sp; ++sp, ++i)
yyrhs[i] = *sp > 0 ? *sp : 0;
- output_table_data (&output_obstack, yyrhs,
+ output_table_data (&format_obstack, yyrhs,
ritem[0], 1, yyrhs_size);
- muscle_insert ("rhs", obstack_finish (&output_obstack));
+ muscle_insert ("rhs", obstack_finish (&format_obstack));
XFREE (yyrhs);
}
#if 0
- if (!semantic_parser && !no_parser_flag)
+ if (!semantic_parser)
obstack_sgrow (&table_obstack, "\n#endif\n");
#endif
}
static void
output_stos (void)
{
- output_table_data (&output_obstack, accessing_symbol,
+ int i;
+ short *values = (short *) alloca (sizeof (short) * nstates);
+ for (i = 0; i < nstates; ++i)
+ values[i] = state_table[i]->accessing_symbol;
+ output_table_data (&format_obstack, values,
0, 1, nstates);
- muscle_insert ("stos", obstack_finish (&output_obstack));
+ muscle_insert ("stos", obstack_finish (&format_obstack));
}
int j;
short *short_tab = NULL;
- output_table_data (&output_obstack, rline,
- 0, 1, nrules + 1);
- muscle_insert ("rline", obstack_finish (&output_obstack));
+ {
+ short *values = XCALLOC (short, nrules + 1);
+ for (i = 0; i < nrules + 1; ++i)
+ values[i] = rule_table[i].line;
+ output_table_data (&format_obstack, values,
+ 0, 1, nrules + 1);
+ muscle_insert ("rline", obstack_finish (&format_obstack));
+ XFREE (values);
+ }
+
j = 0;
for (i = 0; i < nsyms; i++)
- /* this used to be i<=nsyms, but that output a final "" symbol
- almost by accident */
{
+ /* Be sure not to use twice the same quotearg slot. */
+ const char *cp =
+ quotearg_n_style (1, c_quoting_style,
+ quotearg_style (escape_quoting_style, tags[i]));
/* Width of the next token, including the two quotes, the coma
and the space. */
- int strsize = 4;
- char *p;
-
- 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++;
+ int strsize = strlen (cp) + 2;
if (j + strsize > 75)
{
- obstack_sgrow (&output_obstack, "\n ");
+ obstack_sgrow (&format_obstack, "\n ");
j = 2;
}
- obstack_1grow (&output_obstack, '\"');
- for (p = tags[i]; p && *p; p++)
- {
- if (*p == '"' || *p == '\\')
- obstack_fgrow1 (&output_obstack, "\\%c", *p);
- else if (*p == '\n')
- obstack_sgrow (&output_obstack, "\\n");
- else if (*p == '\t')
- obstack_sgrow (&output_obstack, "\\t");
- else if (*p == '\b')
- obstack_sgrow (&output_obstack, "\\b");
- else if (*p < 040 || *p >= 0177)
- obstack_fgrow1 (&output_obstack, "\\%03o", *p);
- else
- obstack_1grow (&output_obstack, *p);
- }
-
- obstack_sgrow (&output_obstack, "\", ");
+ obstack_sgrow (&format_obstack, cp);
+ obstack_sgrow (&format_obstack, ", ");
j += strsize;
}
/* add a NULL entry to list of tokens */
- obstack_sgrow (&output_obstack, "NULL");
+ obstack_sgrow (&format_obstack, "NULL");
/* Finish table and store. */
- obstack_1grow (&output_obstack, 0);
- muscle_insert ("tname", obstack_finish (&output_obstack));
+ obstack_1grow (&format_obstack, 0);
+ muscle_insert ("tname", obstack_finish (&format_obstack));
/* Output YYTOKNUM. */
- output_table_data (&output_obstack, user_toknums,
+ output_table_data (&format_obstack, user_toknums,
0, 1, ntokens + 1);
- muscle_insert ("toknum", obstack_finish (&output_obstack));
+ muscle_insert ("toknum", obstack_finish (&format_obstack));
/* Output YYR1. */
- output_table_data (&output_obstack, rlhs,
- 0, 1, nrules + 1);
- muscle_insert ("r1", obstack_finish (&output_obstack));
- XFREE (rlhs + 1);
+ {
+ short *values = XCALLOC (short, nrules + 1);
+ for (i = 0; i < nrules + 1; ++i)
+ values[i] = rule_table[i].lhs;
+ output_table_data (&format_obstack, values,
+ 0, 1, nrules + 1);
+ muscle_insert ("r1", obstack_finish (&format_obstack));
+ XFREE (values);
+ }
/* Output YYR2. */
short_tab = XMALLOC (short, nrules + 1);
for (i = 1; i < nrules; i++)
- short_tab[i] = rrhs[i + 1] - rrhs[i] - 1;
- short_tab[nrules] = nitems - rrhs[nrules] - 1;
- output_table_data (&output_obstack, short_tab,
+ short_tab[i] = rule_table[i + 1].rhs - rule_table[i].rhs - 1;
+ short_tab[nrules] = nitems - rule_table[nrules].rhs - 1;
+ output_table_data (&format_obstack, short_tab,
0, 1, nrules + 1);
- muscle_insert ("r2", obstack_finish (&output_obstack));
+ muscle_insert ("r2", obstack_finish (&format_obstack));
XFREE (short_tab);
-
- XFREE (rrhs + 1);
}
/*------------------------------------------------------------------.
`------------------------------------------------------------------*/
static int
-action_row (int state)
+action_row (state_t *state)
{
int i;
- int j;
- int k;
- int m = 0;
- int n = 0;
- int count;
- int default_rule;
- int nreds;
- int max;
- int rule;
- int shift_state;
- int symbol;
- unsigned mask;
- unsigned *wordp;
- reductions *redp;
- shifts *shiftp;
- errs *errp;
- int nodefault = 0; /* set nonzero to inhibit having any default reduction */
+ int default_rule = 0;
+ reductions *redp = state->reductions;
+ shifts *shiftp = state->shifts;
+ errs *errp = state->errs;
+ /* set nonzero to inhibit having any default reduction */
+ int nodefault = 0;
for (i = 0; i < ntokens; i++)
actrow[i] = 0;
- default_rule = 0;
- nreds = 0;
- redp = reduction_table[state];
-
- if (redp)
+ if (redp->nreds >= 1)
{
- nreds = redp->nreds;
-
- if (nreds >= 1)
- {
- /* loop over all the rules available here which require
- lookahead */
- m = lookaheads[state];
- n = lookaheads[state + 1];
-
- for (i = n - 1; i >= m; i--)
- {
- rule = -LAruleno[i];
- wordp = LA + i * tokensetsize;
- mask = 1;
-
- /* and find each token which the rule finds acceptable
- to come next */
- for (j = 0; j < ntokens; j++)
- {
- /* and record this rule as the rule to use if that
- token follows. */
- if (mask & *wordp)
- actrow[j] = rule;
-
- mask <<= 1;
- if (mask == 0)
- {
- mask = 1;
- wordp++;
- }
- }
- }
- }
+ int j;
+ /* loop over all the rules available here which require
+ lookahead */
+ for (i = state->nlookaheads - 1; i >= 0; --i)
+ /* and find each token which the rule finds acceptable
+ to come next */
+ for (j = 0; j < ntokens; j++)
+ /* and record this rule as the rule to use if that
+ token follows. */
+ if (BITISSET (LA (state->lookaheadsp + i), j))
+ actrow[j] = -LAruleno[state->lookaheadsp + i];
}
- shiftp = shift_table[state];
-
/* Now see which tokens are allowed for shifts in this state. For
them, record the shift as the thing to do. So shift is preferred
to reduce. */
-
- if (shiftp)
+ for (i = 0; i < shiftp->nshifts; i++)
{
- k = shiftp->nshifts;
-
- for (i = 0; i < k; i++)
- {
- shift_state = shiftp->shifts[i];
- if (!shift_state)
- continue;
+ int symbol;
+ int shift_state = shiftp->shifts[i];
+ if (!shift_state)
+ continue;
- symbol = accessing_symbol[shift_state];
+ symbol = state_table[shift_state]->accessing_symbol;
- if (ISVAR (symbol))
- break;
+ if (ISVAR (symbol))
+ break;
- actrow[symbol] = shift_state;
+ actrow[symbol] = shift_state;
- /* Do not use any default reduction if there is a shift for
- error */
- if (symbol == error_token_number)
- nodefault = 1;
- }
+ /* Do not use any default reduction if there is a shift for
+ error */
+ if (symbol == error_token_number)
+ nodefault = 1;
}
- errp = err_table[state];
-
/* See which tokens are an explicit error in this state (due to
%nonassoc). For them, record MINSHORT as the action. */
-
- if (errp)
+ for (i = 0; i < errp->nerrs; i++)
{
- k = errp->nerrs;
-
- for (i = 0; i < k; i++)
- {
- symbol = errp->errs[i];
- actrow[symbol] = MINSHORT;
- }
+ int symbol = errp->errs[i];
+ actrow[symbol] = MINSHORT;
}
/* Now find the most common reduction and make it the default action
for this state. */
- if (nreds >= 1 && !nodefault)
+ if (redp->nreds >= 1 && !nodefault)
{
- if (consistent[state])
+ if (state->consistent)
default_rule = redp->rules[0];
else
{
- max = 0;
- for (i = m; i < n; i++)
+ int max = 0;
+ for (i = 0; i < state->nlookaheads; i++)
{
- count = 0;
- rule = -LAruleno[i];
+ int count = 0;
+ int rule = -LAruleno[state->lookaheadsp + i];
+ int j;
for (j = 0; j < ntokens; j++)
- {
- if (actrow[j] == rule)
- count++;
- }
+ if (actrow[j] == rule)
+ count++;
if (count > max)
{
if (max > 0)
{
+ int j;
for (j = 0; j < ntokens; j++)
- {
- if (actrow[j] == default_rule)
- actrow[j] = 0;
- }
+ if (actrow[j] == default_rule)
+ actrow[j] = 0;
default_rule = -default_rule;
}
So replace any action which says "error" with "use default". */
if (default_rule == 0)
- for (j = 0; j < ntokens; j++)
- {
- if (actrow[j] == MINSHORT)
- actrow[j] = 0;
- }
+ for (i = 0; i < ntokens; i++)
+ if (actrow[i] == MINSHORT)
+ actrow[i] = 0;
return default_rule;
}
count = 0;
for (i = 0; i < ntokens; i++)
- {
- if (actrow[i] != 0)
- count++;
- }
+ if (actrow[i] != 0)
+ count++;
if (count == 0)
return;
tos[state] = sp2 = XCALLOC (short, count);
for (i = 0; i < ntokens; i++)
- {
- if (actrow[i] != 0)
- {
- *sp1++ = i;
- *sp2++ = actrow[i];
- }
- }
+ if (actrow[i] != 0)
+ {
+ *sp1++ = i;
+ *sp2++ = actrow[i];
+ }
tally[state] = count;
width[state] = sp1[-1] - sp[0] + 1;
actrow = XCALLOC (short, ntokens);
for (i = 0; i < nstates; ++i)
{
- yydefact[i] = action_row (i);
+ yydefact[i] = action_row (state_table[i]);
save_row (i);
}
- output_table_data (&output_obstack, yydefact,
+ output_table_data (&format_obstack, yydefact,
yydefact[0], 1, nstates);
- muscle_insert ("defact", obstack_finish (&output_obstack));
-
+ muscle_insert ("defact", obstack_finish (&format_obstack));
+
XFREE (actrow);
XFREE (yydefact);
}
+/*-----------------------------.
+| Output the actions to OOUT. |
+`-----------------------------*/
+
static void
-free_shifts (void)
+actions_output (FILE *out, size_t *line)
{
- shifts *sp, *sptmp; /* JF derefrenced freed ptr */
-
- XFREE (shift_table);
-
- for (sp = first_shift; sp; sp = sptmp)
- {
- sptmp = sp->next;
- XFREE (sp);
- }
+ int rule;
+ for (rule = 1; rule < nrules + 1; ++rule)
+ if (rule_table[rule].action)
+ {
+ fprintf (out, " case %d:\n", rule);
+
+ if (!no_lines_flag)
+ fprintf (out, muscle_find ("linef"),
+ rule_table[rule].action_line,
+ quotearg_style (c_quoting_style,
+ muscle_find ("filename")));
+ /* As a Bison extension, add the ending semicolon. Since some
+ Yacc don't do that, help people using bison as a Yacc
+ finding their missing semicolons. */
+ fprintf (out, "{ %s%s }\n break;\n\n",
+ rule_table[rule].action,
+ yacc_flag ? ";" : "");
+
+ /* We always output 4 '\n' per action. */
+ *line += 4;
+ /* Plus one if !no_lines_flag. */
+ if (!no_lines_flag)
+ ++*line;
+ /* Get the number of lines written by the user. */
+ *line += get_lines_number (rule_table[rule].action);
+ }
}
+/*----------------------------.
+| Output the guards to OOUT. |
+`----------------------------*/
+
static void
-free_reductions (void)
+guards_output (FILE *out, size_t *line)
{
- reductions *rp, *rptmp; /* JF fixed freed ptr */
-
- XFREE (reduction_table);
-
- for (rp = first_reduction; rp; rp = rptmp)
- {
- rptmp = rp->next;
- XFREE (rp);
- }
+ int rule;
+ for (rule = 1; rule < nrules + 1; ++rule)
+ if (rule_table[rule].action)
+ {
+ fprintf (out, " case %d:\n", rule);
+
+ if (!no_lines_flag)
+ fprintf (out, muscle_find ("linef"),
+ rule_table[rule].guard_line,
+ quotearg_style (c_quoting_style,
+ muscle_find ("filename")));
+ fprintf (out, "{ %s; }\n break;\n\n",
+ rule_table[rule].guard);
+
+ /* We always output 4 '\n' per action. */
+ *line += 4;
+ /* Plus one if !no_lines_flag. */
+ if (!no_lines_flag)
+ ++*line;
+ /* Get the number of lines written by the user. */
+ *line += get_lines_number (rule_table[rule].guard);
+ }
}
-
static void
save_column (int symbol, int default_state)
{
short *sp1;
short *sp2;
int count;
- int symno;
+ int symno = symbol - ntokens + nstates;
short begin = goto_map[symbol];
short end = goto_map[symbol + 1];
count = 0;
for (i = begin; i < end; i++)
- {
- if (to_state[i] != default_state)
- count++;
- }
+ if (to_state[i] != default_state)
+ count++;
if (count == 0)
return;
- symno = symbol - ntokens + nstates;
-
froms[symno] = sp1 = sp = XCALLOC (short, count);
tos[symno] = sp2 = XCALLOC (short, count);
for (i = begin; i < end; i++)
- {
- if (to_state[i] != default_state)
- {
- *sp1++ = from_state[i];
- *sp2++ = to_state[i];
- }
- }
+ if (to_state[i] != default_state)
+ {
+ *sp1++ = from_state[i];
+ *sp2++ = to_state[i];
+ }
tally[symno] = count;
width[symno] = sp1[-1] - sp[0] + 1;
default_goto (int symbol)
{
int i;
- int m;
- int n;
- int default_state;
- int max;
-
- m = goto_map[symbol];
- n = goto_map[symbol + 1];
+ int m = goto_map[symbol];
+ int n = goto_map[symbol + 1];
+ int default_state = -1;
+ int max = 0;
if (m == n)
return -1;
for (i = m; i < n; i++)
state_count[to_state[i]]++;
- max = 0;
- default_state = -1;
-
for (i = 0; i < nstates; i++)
- {
- if (state_count[i] > max)
- {
- max = state_count[i];
- default_state = i;
- }
- }
+ if (state_count[i] > max)
+ {
+ max = state_count[i];
+ default_state = i;
+ }
return default_state;
}
yydefgoto[i - ntokens] = default_state;
}
- output_table_data (&output_obstack, yydefgoto,
+ output_table_data (&format_obstack, yydefgoto,
yydefgoto[0], 1, nsyms - ntokens);
- muscle_insert ("defgoto", obstack_finish (&output_obstack));
+ muscle_insert ("defgoto", obstack_finish (&format_obstack));
XFREE (state_count);
XFREE (yydefgoto);
sort_actions (void)
{
int i;
- int j;
- int k;
- int t;
- int w;
order = XCALLOC (short, nvectors);
nentries = 0;
for (i = 0; i < nvectors; i++)
- {
- if (tally[i] > 0)
- {
- t = tally[i];
- w = width[i];
- j = nentries - 1;
+ if (tally[i] > 0)
+ {
+ int k;
+ int t = tally[i];
+ int w = width[i];
+ int j = nentries - 1;
- while (j >= 0 && (width[order[j]] < w))
- j--;
+ while (j >= 0 && (width[order[j]] < w))
+ j--;
- while (j >= 0 && (width[order[j]] == w) && (tally[order[j]] < t))
- j--;
+ while (j >= 0 && (width[order[j]] == w) && (tally[order[j]] < t))
+ j--;
- for (k = nentries - 1; k > j; k--)
- order[k + 1] = order[k];
+ for (k = nentries - 1; k > j; k--)
+ order[k + 1] = order[k];
- order[j + 1] = i;
- nentries++;
- }
- }
+ order[j + 1] = i;
+ nentries++;
+ }
}
static int
matching_state (int vector)
{
- int i;
- int j;
- int k;
+ int i = order[vector];
int t;
int w;
- int match;
int prev;
- i = order[vector];
if (i >= nstates)
return -1;
for (prev = vector - 1; prev >= 0; prev--)
{
- j = order[prev];
+ int j = order[prev];
+ int k;
+ int match = 1;
+
if (width[j] != w || tally[j] != t)
return -1;
- match = 1;
for (k = 0; match && k < t; k++)
- {
- if (tos[j][k] != tos[i][k] || froms[j][k] != froms[i][k])
- match = 0;
- }
+ if (tos[j][k] != tos[i][k] || froms[j][k] != froms[i][k])
+ match = 0;
if (match)
return j;
static int
pack_vector (int vector)
{
- int i;
+ int i = order[vector];
int j;
- int k;
- int t;
+ int t = tally[i];
int loc = 0;
- int ok;
- short *from;
- short *to;
-
- i = order[vector];
- t = tally[i];
+ short *from = froms[i];
+ short *to = tos[i];
assert (t);
- from = froms[i];
- to = tos[i];
-
for (j = lowzero - from[0]; j < MAXTABLE; j++)
{
- ok = 1;
+ int k;
+ int ok = 1;
for (k = 0; ok && k < t; k++)
{
}
for (k = 0; ok && k < vector; k++)
- {
- if (pos[k] == j)
- ok = 0;
- }
+ if (pos[k] == j)
+ ok = 0;
if (ok)
{
return j;
}
}
-
- berror ("pack_vector");
- return 0; /* JF keep lint happy */
+#define pack_vector_succeeded 0
+ assert (pack_vector_succeeded);
+ return 0;
}
for (i = 0; i < nvectors; i++)
{
- if (froms[i])
- XFREE (froms[i]);
- if (tos[i])
- XFREE (tos[i]);
+ XFREE (froms[i]);
+ XFREE (tos[i]);
}
XFREE (froms);
output_base (void)
{
/* Output pact. */
- output_table_data (&output_obstack, base,
+ output_table_data (&format_obstack, base,
base[0], 1, nstates);
- muscle_insert ("pact", obstack_finish (&output_obstack));
+ muscle_insert ("pact", obstack_finish (&format_obstack));
/* Output pgoto. */
- output_table_data (&output_obstack, base,
+ output_table_data (&format_obstack, base,
base[nstates], nstates + 1, nvectors);
- muscle_insert ("pgoto", obstack_finish (&output_obstack));
+ muscle_insert ("pgoto", obstack_finish (&format_obstack));
XFREE (base);
}
static void
output_table (void)
{
- output_table_data (&output_obstack, table,
+ output_table_data (&format_obstack, table,
table[0], 1, high + 1);
- muscle_insert ("table", obstack_finish (&output_obstack));
+ muscle_insert ("table", obstack_finish (&format_obstack));
XFREE (table);
}
static void
output_check (void)
{
- output_table_data (&output_obstack, check,
+ output_table_data (&format_obstack, check,
check[0], 1, high + 1);
- muscle_insert ("check", obstack_finish (&output_obstack));
+ muscle_insert ("check", obstack_finish (&format_obstack));
XFREE (check);
}
static void
output_actions (void)
{
+ int i;
nvectors = nstates + nvars;
froms = XCALLOC (short *, nvectors);
width = XCALLOC (short, nvectors);
token_actions ();
- free_shifts ();
- free_reductions ();
- XFREE (lookaheads);
XFREE (LA);
XFREE (LAruleno);
- XFREE (accessing_symbol);
goto_actions ();
XFREE (goto_map + ntokens);
output_table ();
output_check ();
+
+ for (i = 0; i < nstates; ++i)
+ {
+ free (state_table[i]->shifts);
+ XFREE (state_table[i]->reductions);
+ free (state_table[i]->errs);
+ free (state_table[i]);
+ }
+ XFREE (state_table);
}
-/*------------------------------------------.
-| Copy the parser code into TABLE_OBSTACK. |
-`------------------------------------------*/
+\f
+/*------------------------------------------------------------.
+| Copy the parser code from SKEL_FILENAME into OOUT obstack. |
+| and do the muscle substitution. |
+`------------------------------------------------------------*/
static void
-output_parser (void)
+output_parser (const char *skel_filename, FILE *out)
{
int c;
FILE *fskel;
- size_t line;
+ size_t output_line;
+ size_t skeleton_line;
- /* 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");
+ fskel = xfopen (skel_filename, "r");
/* New output code. */
- line = 1;
+ output_line = 1;
+ skeleton_line = 1;
c = getc (fskel);
while (c != EOF)
{
if (c != '%')
{
if (c == '\n')
- ++line;
- obstack_1grow (&table_obstack, c);
+ {
+ ++output_line;
+ ++skeleton_line;
+ }
+ putc (c, out);
c = getc (fskel);
}
else if ((c = getc (fskel)) == '%')
/* Read the muscle. */
const char *muscle_key = 0;
const char *muscle_value = 0;
- while (isalnum (c = getc (fskel)) || c == '_')
+
+ while (isalnum (c = getc (fskel)) || c == '-')
obstack_1grow (&muscle_obstack, c);
obstack_1grow (&muscle_obstack, 0);
/* Output the right value, or see if it's something special. */
muscle_key = obstack_finish (&muscle_obstack);
muscle_value = muscle_find (muscle_key);
- if (muscle_value)
- obstack_sgrow (&table_obstack, muscle_value);
+ if (!strcmp (muscle_key, "actions"))
+ actions_output (out, &output_line);
+ else if (!strcmp (muscle_key, "guards"))
+ guards_output (out, &output_line);
else if (!strcmp (muscle_key, "line"))
- obstack_fgrow1 (&table_obstack, "%d", line + 1);
- else if (!strcmp (muscle_key, "action"))
+ fprintf (out, "%d", output_line);
+ else if (!strcmp (muscle_key, "skeleton-line"))
+ fprintf (out, "%d", skeleton_line);
+ else if (muscle_value)
{
- size_t size = obstack_object_size (&action_obstack);
- obstack_grow (&table_obstack,
- obstack_finish (&action_obstack), size);
+ fputs (muscle_value, out);
+ output_line += get_lines_number (muscle_value);
}
else
{
- obstack_sgrow (&table_obstack, "%%");
- obstack_sgrow (&table_obstack, muscle_key);
+ fputs ("%%", out);
+ fputs (muscle_key, out);
}
}
else
- obstack_1grow (&table_obstack, '%');
+ putc ('%', out);
}
/* End. */
xfclose (fskel);
}
+/*----------------------------------------.
+| Prepare the master parser to be output |
+`----------------------------------------*/
+
static void
-free_itemsets (void)
+output_master_parser (void)
{
- core *cp, *cptmp;
-
- XFREE (state_table);
-
- for (cp = first_state; cp; cp = cptmp)
+ FILE *parser = xfopen (parser_file_name, "w");
+ if (!skeleton)
{
- cptmp = cp->next;
- XFREE (cp);
+ if (semantic_parser)
+ skeleton = skeleton_find ("BISON_HAIRY", BISON_HAIRY);
+ else
+ skeleton = skeleton_find ("BISON_SIMPLE", BISON_SIMPLE);
}
+ muscle_insert ("skeleton", skeleton);
+ muscle_insert ("parser-file-name", parser_file_name);
+
+ output_parser (skeleton, parser);
+ xfclose (parser);
}
+
/* FIXME. */
#define MUSCLE_INSERT_INT(Key, Value) \
MUSCLE_INSERT_INT ("debug", debug_flag);
MUSCLE_INSERT_INT ("final", final_state);
MUSCLE_INSERT_INT ("maxtok", max_user_token_number);
- MUSCLE_INSERT_INT ("ntbase", ntokens);
- MUSCLE_INSERT_INT ("verbose", 0);
+ MUSCLE_INSERT_INT ("error-verbose", error_verbose);
+ MUSCLE_INSERT_STRING ("prefix", spec_name_prefix);
MUSCLE_INSERT_INT ("nnts", nvars);
MUSCLE_INSERT_INT ("nrules", nrules);
MUSCLE_INSERT_INT ("nstates", nstates);
MUSCLE_INSERT_INT ("ntokens", ntokens);
- MUSCLE_INSERT_INT ("locations_flag", locations_flag);
+ MUSCLE_INSERT_INT ("locations-flag", locations_flag);
+}
+
+
+/*-------------------------.
+| Output the header file. |
+`-------------------------*/
+
+static void
+header_output (void)
+{
+ FILE *out = xfopen (spec_defines_file, "w");
+ char *macro_name = compute_header_macro ();
+
+ fprintf (out, "#ifndef %s\n", macro_name);
+ fprintf (out, "# define %s\n\n", macro_name);
+
+ fputs (muscle_find ("tokendef"), out);
+ fprintf (out, "\
+#ifndef YYSTYPE\n\
+typedef %s
+yystype;\n\
+# define YYSTYPE yystype\n\
+#endif\n",
+ muscle_find ("stype"));
+
+ if (!pure_parser)
+ fprintf (out, "\nextern YYSTYPE %slval;\n",
+ spec_name_prefix);
+ if (semantic_parser)
+ {
+ int i;
+
+ for (i = ntokens; i < nsyms; i++)
+ /* don't make these for dummy nonterminals made by gensym. */
+ if (*tags[i] != '@')
+ fprintf (out, "# define NT%s\t%d\n", tags[i], i);
+ }
- if (spec_name_prefix)
- MUSCLE_INSERT_STRING ("prefix", spec_name_prefix);
+ fprintf (out, "\n#endif /* not %s */\n", macro_name);
+ free (macro_name);
+ xfclose (out);
}
+
/*----------------------------------------------------------.
| Output the parsing tables and the parser code to ftable. |
`----------------------------------------------------------*/
void
output (void)
{
- obstack_init (&output_obstack);
-
- free_itemsets ();
+ obstack_init (&format_obstack);
output_token_translations ();
output_gram ();
if (semantic_parser)
output_stos ();
output_rule_data ();
+ XFREE (user_toknums);
output_actions ();
-
-#if 0
- if (!no_parser_flag) */
-#endif
+
prepare ();
/* Copy definitions in directive. */
+ obstack_1grow (&attrs_obstack, 0);
muscle_insert ("prologue", obstack_finish (&attrs_obstack));
- output_parser ();
- obstack_free (&muscle_obstack, 0);
- obstack_free (&output_obstack, 0);
+ /* Output the parser. */
+ output_master_parser ();
+ /* Output the header if needed. */
+ if (defines_flag)
+ header_output ();
+
+ free (rule_table + 1);
+ obstack_free (&muscle_obstack, NULL);
+ obstack_free (&format_obstack, NULL);
+ obstack_free (&action_obstack, NULL);
+ obstack_free (&attrs_obstack, NULL);
}
projects / bison.git / blobdiff