Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-15 15:23:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

Copy BYacc's nice way to report the grammar.

Browse Source 
* src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
New.
Don't print the rules' location, it is confusing and useless.
(rule_print): Use grammar_rhs_print.
* src/print.c (print_grammar): Use grammar_rules_print.
This commit is contained in:
Akim Demaille
2002-06-15 18:23:12 +00:00
parent ee000ba4fc
commit 6b98e4b563
16 changed files with 328 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/closure.c
View File

@@ -59,8 +59,7 @@ print_closure (const char *title, item_number_t *array, size_t size)
item_number_t *rp;
fprintf (stderr, " %2d: .", array[i]);
for (rp = &ritem[array[i]]; *rp >= 0; ++rp)
fprintf (stderr, " %s",
quotearg_style (escape_quoting_style, symbols[*rp]->tag));
fprintf (stderr, " %s", symbol_tag_get (symbols[*rp]));
fprintf (stderr, " (rule %d)\n", -*rp - 1);
}
fputs ("\n\n", stderr);
@@ -75,13 +74,11 @@ print_firsts (void)
fprintf (stderr, "FIRSTS\n");
for (i = ntokens; i < nsyms; i++)
{
fprintf (stderr, "\t%s firsts\n",
quotearg_style (escape_quoting_style, symbols[i]->tag));
fprintf (stderr, "\t%s firsts\n", symbol_tag_get (symbols[i]));
for (j = 0; j < nvars; j++)
if (bitset_test (FIRSTS (i), j))
fprintf (stderr, "\t\t%s\n",
quotearg_style (escape_quoting_style,
symbols[j + ntokens]->tag));
symbol_tag_get (symbols[j + ntokens]));
}
fprintf (stderr, "\n\n");
}
@@ -95,17 +92,14 @@ print_fderives (void)
fprintf (stderr, "FDERIVES\n");
for (i = ntokens; i < nsyms; i++)
{
fprintf (stderr, "\t%s derives\n",
quotearg_style (escape_quoting_style, symbols[i]->tag));
fprintf (stderr, "\t%s derives\n", symbol_tag_get (symbols[i]));
for (j = 0; j < nrules + 1; j++)
if (bitset_test (FDERIVES (i), j))
{
item_number_t *rhsp;
fprintf (stderr, "\t\t%d:", j - 1);
for (rhsp = rules[j].rhs; *rhsp >= 0; ++rhsp)
fprintf (stderr, " %s",
quotearg_style (escape_quoting_style,
symbols[*rhsp]->tag));
fprintf (stderr, " %s", symbol_tag_get (symbols[*rhsp]));
fputc ('\n', stderr);
}
}