/* Allocate input grammar variables for Bison.
- Copyright (C) 1984, 1986, 1989, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1984, 1986, 1989, 2001, 2002, 2003, 2005, 2006
+ 2007 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
- Bison is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bison is distributed in the hope that it will be useful,
+ This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+#include <config.h>
#include "system.h"
#include <quotearg.h>
#include "reader.h"
#include "reduce.h"
#include "symtab.h"
+#include "print-xml.h"
/* Comments for these variables are in gram.h. */
int max_user_token_number = 256;
-int glr_parser = 0;
-int pure_parser = 0;
-
-
/*--------------------------------------------------------------.
| Return true IFF the rule has a `number' smaller than NRULES. |
`--------------------------------------------------------------*/
bool
rule_useless_p (rule *r)
{
- return r->number >= nrules;
+ return !rule_useful_p (r);
}
bool
rule_never_reduced_p (rule *r)
{
- return !r->useful && r->number < nrules;
+ return !r->useful && rule_useful_p (r);
}
}
}
+void
+rule_lhs_print_xml (rule *r, FILE *out, int level)
+{
+ xml_printf (out, level, "<lhs>%s</lhs>", r->lhs->tag);
+}
+
/*--------------------------------------.
| Return the number of symbols in RHS. |
}
}
+static void
+rule_rhs_print_xml (rule *r, FILE *out, int level)
+{
+ if (*r->rhs >= 0)
+ {
+ item_number *rp;
+ xml_puts (out, level, "<rhs>");
+ for (rp = r->rhs; *rp >= 0; rp++)
+ xml_printf (out, level + 1, "<symbol class=\"%s\">%s</symbol>",
+ symbol_class_get_string (symbols[*rp]),
+ xml_escape (symbols[*rp]->tag));
+ xml_puts (out, level, "</rhs>");
+ }
+ else
+ {
+ xml_puts (out, level, "<rhs>");
+ xml_puts (out, level + 1, "<empty/>");
+ xml_puts (out, level, "</rhs>");
+ }
+}
/*-------------------------.
| Print this rule on OUT. |
grammar_rules_partial_print (FILE *out, const char *title,
rule_filter filter)
{
- int r;
+ rule_number r;
bool first = true;
symbol *previous_lhs = NULL;
}
+/*----------------------------------------------------------.
+| Print the grammar's rules that match FILTER on OUT (XML). |
+`-----------------------------------------------------------*/
+
+void
+grammar_rules_partial_print_xml (FILE *out, int level, bool rtag,
+ rule_filter filter)
+{
+ rule_number r;
+ bool first = true;
+
+ for (r = 0; r < nrules + nuseless_productions; r++)
+ {
+ if (filter && !filter (&rules[r]))
+ continue;
+ if (rtag && first)
+ xml_puts (out, level + 1, "<rules>");
+ first = false;
+
+ xml_printf (out, level + 2, "<rule number=\"%d\">",
+ rules[r].number);
+ rule_lhs_print_xml (&rules[r], out, level + 3);
+ rule_rhs_print_xml (&rules[r], out, level + 3);
+ xml_puts (out, level + 2, "</rule>");
+ }
+ if (rtag)
+ {
+ if (!first)
+ xml_puts (out, level + 1, "</rules>");
+ else
+ xml_puts (out, level + 1, "<rules/>");
+ }
+}
+
/*------------------------------------------.
| Print the grammar's useful rules on OUT. |
`------------------------------------------*/
grammar_rules_partial_print (out, _("Grammar"), rule_useful_p);
}
+void
+grammar_rules_print_xml (FILE *out, int level)
+{
+ grammar_rules_partial_print_xml (out, level, true, rule_useful_p);
+}
+
/*-------------------.
| Dump the grammar. |
for (i = 0; i < nrules + nuseless_productions; i++)
{
rule *rule_i = &rules[i];
- item_number *r = NULL;
+ item_number *rp = NULL;
unsigned int rhs_itemno = rule_i->rhs - ritem;
- unsigned int rhs_count = 0;
+ unsigned int rhs_count = 0;
/* Find the last RHS index in ritems. */
- for (r = rule_i->rhs; *r >= 0; ++r)
+ for (rp = rule_i->rhs; *rp >= 0; ++rp)
++rhs_count;
fprintf (out, "%3d (%2d, %2d, %2d, %2u-%2u) %2d ->",
i,
rhs_itemno + rhs_count - 1,
rule_i->lhs->number);
/* Dumped the RHS. */
- for (r = rule_i->rhs; *r >= 0; r++)
- fprintf (out, " %3d", *r);
- fprintf (out, " [%d]\n", item_number_as_rule_number (*r));
+ for (rp = rule_i->rhs; *rp >= 0; rp++)
+ fprintf (out, " %3d", *rp);
+ fprintf (out, " [%d]\n", item_number_as_rule_number (*rp));
}
}
fprintf (out, "\n\n");
if (!rules[r].useful)
{
location_print (stderr, rules[r].location);
- fprintf (stderr, ": %s: %s: ",
- _("warning"), message);
+ fprintf (stderr, ": %s: %s: ", _("warning"), message);
rule_print (&rules[r], stderr);
}
}
void
grammar_free (void)
{
- XFREE (ritem);
+ if (ritem)
+ free (ritem - 1);
free (rules);
- XFREE (token_translations);
+ free (token_translations);
/* Free the symbol table data structure. */
symbols_free ();
free_merger_functions ();
projects / bison.git / blobdiff