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* src/print.c, src/print_graph.c (escape): New.

Browse Source 
Use it to quote the TAGS outputs.
* src/print_graph.c (print_state): Now errors are in red, and
reductions in green.
Prefer high to wide: output the state number on a line of its own.
This commit is contained in:
Akim Demaille
2001-12-27 18:11:20 +00:00
parent 80dac38c5e
commit 8adfa272f7
3 changed files with 66 additions and 32 deletions
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27
src/print_graph.c
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@@ -19,6 +19,7 @@
Boston, MA 02111-1307, USA. */
#include "system.h"
#include "quotearg.h"
#include "files.h"
#include "gram.h"
#include "LR0.h"
@@ -36,6 +37,13 @@
static graph_t graph;
static FILE *fgraph = NULL;
static inline const char *
escape (const char *s)
{
return quotearg_n_style (1, escape_quoting_style, s);
}
/* This part will construct the label of nodes. */
static void
print_core (state_t *state, struct obstack *node_obstack)
@@ -49,7 +57,7 @@ print_core (state_t *state, struct obstack *node_obstack)
sitems = itemset;
snitems = nitemset;
obstack_fgrow1 (node_obstack, "%2d: ", state->number);
obstack_fgrow1 (node_obstack, "state %2d\n", state->number);
for (i = 0; i < snitems; i++)
{
short *sp;
@@ -64,17 +72,17 @@ print_core (state_t *state, struct obstack *node_obstack)
rule = -(*sp);
if (i)
obstack_sgrow (node_obstack, "\n ");
obstack_1grow (node_obstack, '\n');
obstack_fgrow1 (node_obstack, " %s -> ",
tags[rule_table[rule].lhs]);
escape (tags[rule_table[rule].lhs]));
for (sp = ritem + rule_table[rule].rhs; sp < sp1; sp++)
obstack_fgrow1 (node_obstack, "%s ", tags[*sp]);
obstack_fgrow1 (node_obstack, "%s ", escape (tags[*sp]));
obstack_1grow (node_obstack, '.');
for (/* Nothing */; *sp > 0; ++sp)
obstack_fgrow1 (node_obstack, " %s", tags[*sp]);
obstack_fgrow1 (node_obstack, " %s", escape (tags[*sp]));
}
}
@@ -113,9 +121,12 @@ print_actions (state_t *state, const char *node_name)
edge.sourcename = node_name;
sprintf (buff, "%d", state1);
edge.targetname = buff;
/* Shifts are blue, gotos are red. */
edge.color = SHIFT_IS_SHIFT(shiftp, i) ? blue : red;
edge.label = tags[symbol];
/* Shifts are blue, gotos are green, and error is red. */
if (SHIFT_IS_ERROR (shiftp, i))
edge.color = red;
else
edge.color = SHIFT_IS_SHIFT(shiftp, i) ? blue : green;
edge.label = escape (tags[symbol]);
output_edge (&edge, fgraph);
close_edge (fgraph);
}