unsigned int nritems = 0;
rule_t *rules = NULL;
-int nrules = 0;
+rule_number_t nrules = 0;
symbol_t **symbols = NULL;
int nsyms = 0;
int max_user_token_number = 256;
+int glr_parser = 0;
int pure_parser = 0;
+/*----------------------------------------------------------------.
+| Print this RULE's number and lhs on OUT. If a PREVIOUS_LHS was |
+| already displayed (by a previous call for another rule), avoid |
+| useless repetitions. |
+`----------------------------------------------------------------*/
+
+void
+rule_lhs_print (rule_t *rule, symbol_t *previous_lhs, FILE *out)
+{
+ fprintf (out, " %3d ", rule->number - 1);
+ if (previous_lhs != rule->lhs)
+ {
+ fprintf (out, "%s:", rule->lhs->tag);
+ }
+ else
+ {
+ int n;
+ for (n = strlen (previous_lhs->tag); n > 0; --n)
+ fputc (' ', out);
+ fputc ('|', out);
+ }
+}
+
+
/*--------------------------------------.
| Return the number of symbols in RHS. |
`--------------------------------------*/
{
item_number_t *r;
for (r = rule->rhs; *r >= 0; r++)
- fprintf (out, " %s", symbol_tag_get (symbols[*r]));
+ fprintf (out, " %s", symbols[*r]->tag);
fputc ('\n', out);
}
else
void
rule_print (rule_t *rule, FILE *out)
{
- fprintf (out, "%s:", symbol_tag_get (rule->lhs));
+ fprintf (out, "%s:", rule->lhs->tag);
rule_rhs_print (rule, out);
}
fputs ("RITEM\n", out);
for (i = 0; i < nritems; ++i)
if (ritem[i] >= 0)
- fprintf (out, " %s", symbol_tag_get (symbols[ritem[i]]));
+ fprintf (out, " %s", symbols[ritem[i]]->tag);
else
fprintf (out, " (rule %d)\n", -ritem[i] - 1);
fputs ("\n\n", out);
ritem_longest_rhs (void)
{
int max = 0;
- int i;
+ rule_number_t r;
- for (i = 1; i < nrules + 1; ++i)
+ for (r = 1; r < nrules + 1; ++r)
{
- int length = rule_rhs_length (&rules[i]);
+ int length = rule_rhs_length (&rules[r]);
if (length > max)
max = length;
}
}
-/*-----------------------------------.
-| Print the grammar's rules on OUT. |
-`-----------------------------------*/
-
-static inline void
-blanks_print (unsigned n, FILE *out)
-{
- for (/* Nothing*/; n > 0; --n)
- fputc (' ', out);
-}
+/*----------------------------------------------------------------.
+| Print the grammar's rules numbers from BEGIN (inclusive) to END |
+| (exclusive) on OUT under TITLE. |
+`----------------------------------------------------------------*/
void
-grammar_rules_print (FILE *out)
+grammar_rules_partial_print (FILE *out, const char *title,
+ rule_number_t begin, rule_number_t end)
{
int r;
- symbol_t *last_lhs = NULL;
+ symbol_t *previous_lhs = NULL;
/* rule # : LHS -> RHS */
- fprintf (out, "%s\n\n", _("Grammar"));
- for (r = 1; r < nrules + 1; r++)
+ fprintf (out, "%s\n\n", title);
+ for (r = begin; r < end; r++)
{
- if (last_lhs && last_lhs != rules[r].lhs)
+ if (previous_lhs && previous_lhs != rules[r].lhs)
fputc ('\n', out);
-
- fprintf (out, " %3d ", r - 1);
- if (last_lhs != rules[r].lhs)
- {
- last_lhs = rules[r].lhs;
- fprintf (out, "%s:", symbol_tag_get (last_lhs));
- }
- else
- {
- blanks_print (strlen (symbol_tag_get (last_lhs)), out);
- fputc ('|', out);
- }
+ rule_lhs_print (&rules[r], previous_lhs, out);
rule_rhs_print (&rules[r], out);
+ previous_lhs = rules[r].lhs;
}
fputs ("\n\n", out);
}
+
+/*------------------------------------------.
+| Print the grammar's useful rules on OUT. |
+`------------------------------------------*/
+
+void
+grammar_rules_print (FILE *out)
+{
+ grammar_rules_partial_print (out, _("Grammar"), 1, nrules + 1);
+}
+
+
/*-------------------.
| Dump the grammar. |
`-------------------*/
void
grammar_dump (FILE *out, const char *title)
{
- int i;
- item_number_t *r;
-
fprintf (out, "%s\n\n", title);
fprintf (out,
"ntokens = %d, nvars = %d, nsyms = %d, nrules = %d, nritems = %d\n\n",
ntokens, nvars, nsyms, nrules, nritems);
+
+
fprintf (out, "Variables\n---------\n\n");
- fprintf (out, "Value Sprec Sassoc Tag\n");
- for (i = ntokens; i < nsyms; i++)
- fprintf (out, "%5d %5d %5d %s\n",
- i,
- symbols[i]->prec, symbols[i]->assoc,
- symbol_tag_get (symbols[i]));
- fprintf (out, "\n\n");
+ {
+ symbol_number_t i;
+ fprintf (out, "Value Sprec Sassoc Tag\n");
+
+ for (i = ntokens; i < nsyms; i++)
+ fprintf (out, "%5d %5d %5d %s\n",
+ i,
+ symbols[i]->prec, symbols[i]->assoc,
+ symbols[i]->tag);
+ fprintf (out, "\n\n");
+ }
+
fprintf (out, "Rules\n-----\n\n");
- fprintf (out, "Num (Prec, Assoc, Useful, Ritem Range) Lhs -> Rhs (Ritem range) [Num]\n");
- for (i = 1; i < nrules + nuseless_productions + 1; i++)
- {
- int rhs_count = 0;
- /* Find the last RHS index in ritems. */
- for (r = rules[i].rhs; *r >= 0; ++r)
- ++rhs_count;
- fprintf (out, "%3d (%2d, %2d, %2d, %2d-%2d) %2d ->",
- i - 1,
- rules[i].prec ? rules[i].prec->prec : 0,
- rules[i].prec ? rules[i].prec->assoc : 0,
- rules[i].useful,
- rules[i].rhs - ritem,
- rules[i].rhs - ritem + rhs_count - 1,
- rules[i].lhs->number);
- /* Dumped the RHS. */
- for (r = rules[i].rhs; *r >= 0; r++)
- fprintf (out, " %3d", *r);
- fprintf (out, " [%d]\n", -(*r) - 1);
- }
+ {
+ rule_number_t i;
+ fprintf (out, "Num (Prec, Assoc, Useful, Ritem Range) Lhs -> Rhs (Ritem range) [Num]\n");
+ for (i = 1; i < nrules + nuseless_productions + 1; i++)
+ {
+ rule_t *rule = &rules[i];
+ item_number_t *r = NULL;
+ int rhs_count = 0;
+ /* Find the last RHS index in ritems. */
+ for (r = rule->rhs; *r >= 0; ++r)
+ ++rhs_count;
+ fprintf (out, "%3d (%2d, %2d, %2d, %2d-%2d) %2d ->",
+ i - 1,
+ rule->prec ? rule->prec->prec : 0,
+ rule->prec ? rule->prec->assoc : 0,
+ rule->useful,
+ rule->rhs - ritem,
+ rule->rhs - ritem + rhs_count - 1,
+ rule->lhs->number);
+ /* Dumped the RHS. */
+ for (r = rule->rhs; *r >= 0; r++)
+ fprintf (out, " %3d", *r);
+ fprintf (out, " [%d]\n", -(*r) - 1);
+ }
+ }
fprintf (out, "\n\n");
+
fprintf (out, "Rules interpreted\n-----------------\n\n");
- for (i = 1; i < nrules + nuseless_productions + 1; i++)
- {
- fprintf (out, "%-5d ", i);
- rule_print (&rules[i], out);
- }
+ {
+ rule_number_t r;
+ for (r = 1; r < nrules + nuseless_productions + 1; r++)
+ {
+ fprintf (out, "%-5d ", r);
+ rule_print (&rules[r], out);
+ }
+ }
fprintf (out, "\n\n");
}
XFREE (token_translations);
/* Free the symbol table data structure. */
symbols_free ();
+ free_merger_functions ();
}
projects / bison.git / blobdiff