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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <stdlib.h>
#include <sys/types.h>
#include <regex.h>
#include <wchar.h>
#include <wctype.h>
#include "utils.h"
#include "regex2.h"
#include "debug.ih"
/*
- regprint - print a regexp for debugging
== void regprint(regex_t *r, FILE *d);
*/
void
regprint(r, d)
regex_t *r;
FILE *d;
{
struct re_guts *g = r->re_g;
int i;
int c;
int last;
fprintf(d, "%ld states", (long)g->nstates);
fprintf(d, ", first %ld last %ld", (long)g->firststate,
(long)g->laststate);
if (g->iflags&USEBOL)
fprintf(d, ", USEBOL");
if (g->iflags&USEEOL)
fprintf(d, ", USEEOL");
if (g->iflags&BAD)
fprintf(d, ", BAD");
if (g->nsub > 0)
fprintf(d, ", nsub=%ld", (long)g->nsub);
if (g->must != NULL)
fprintf(d, ", must(%ld) `%*s'", (long)g->mlen, (int)g->mlen,
g->must);
if (g->backrefs)
fprintf(d, ", backrefs");
if (g->nplus > 0)
fprintf(d, ", nplus %ld", (long)g->nplus);
fprintf(d, "\n");
s_print(g, d);
}
/*
- s_print - print the strip for debugging
== static void s_print(struct re_guts *g, FILE *d);
*/
static void
s_print(g, d)
struct re_guts *g;
FILE *d;
{
sop *s;
cset *cs;
int i;
int done = 0;
sop opnd;
int col = 0;
int last;
sopno offset = 2;
# define GAP() { if (offset % 5 == 0) { \
if (col > 40) { \
fprintf(d, "\n\t"); \
col = 0; \
} else { \
fprintf(d, " "); \
col++; \
} \
} else \
col++; \
offset++; \
}
if (OP(g->strip[0]) != OEND)
fprintf(d, "missing initial OEND!\n");
for (s = &g->strip[1]; !done; s++) {
opnd = OPND(*s);
switch (OP(*s)) {
case OEND:
fprintf(d, "\n");
done = 1;
break;
case OCHAR:
if (strchr("\\|()^$.[+*?{}!<> ", (char)opnd) != NULL)
fprintf(d, "\\%c", (char)opnd);
else
fprintf(d, "%s", regchar((char)opnd));
break;
case OBOL:
fprintf(d, "^");
break;
case OEOL:
fprintf(d, "$");
break;
case OBOW:
fprintf(d, "\\{");
break;
case OEOW:
fprintf(d, "\\}");
break;
case OANY:
fprintf(d, ".");
break;
case OANYOF:
fprintf(d, "[(%ld)", (long)opnd);
#if 0
cs = &g->sets[opnd];
last = -1;
for (i = 0; i < g->csetsize+1; i++) /* +1 flushes */
if (CHIN(cs, i) && i < g->csetsize) {
if (last < 0) {
fprintf(d, "%s", regchar(i));
last = i;
}
} else {
if (last >= 0) {
if (last != i-1)
fprintf(d, "-%s",
regchar(i-1));
last = -1;
}
}
#endif
fprintf(d, "]");
break;
case OBACK_:
fprintf(d, "(\\<%ld>", (long)opnd);
break;
case O_BACK:
fprintf(d, "<%ld>\\)", (long)opnd);
break;
case OPLUS_:
fprintf(d, "(+");
if (OP(*(s+opnd)) != O_PLUS)
fprintf(d, "<%ld>", (long)opnd);
break;
case O_PLUS:
if (OP(*(s-opnd)) != OPLUS_)
fprintf(d, "<%ld>", (long)opnd);
fprintf(d, "+)");
break;
case OQUEST_:
fprintf(d, "(?");
if (OP(*(s+opnd)) != O_QUEST)
fprintf(d, "<%ld>", (long)opnd);
break;
case O_QUEST:
if (OP(*(s-opnd)) != OQUEST_)
fprintf(d, "<%ld>", (long)opnd);
fprintf(d, "?)");
break;
case OLPAREN:
fprintf(d, "((<%ld>", (long)opnd);
break;
case ORPAREN:
fprintf(d, "<%ld>))", (long)opnd);
break;
case OCH_:
fprintf(d, "<");
if (OP(*(s+opnd)) != OOR2)
fprintf(d, "<%ld>", (long)opnd);
break;
case OOR1:
if (OP(*(s-opnd)) != OOR1 && OP(*(s-opnd)) != OCH_)
fprintf(d, "<%ld>", (long)opnd);
fprintf(d, "|");
break;
case OOR2:
fprintf(d, "|");
if (OP(*(s+opnd)) != OOR2 && OP(*(s+opnd)) != O_CH)
fprintf(d, "<%ld>", (long)opnd);
break;
case O_CH:
if (OP(*(s-opnd)) != OOR1)
fprintf(d, "<%ld>", (long)opnd);
fprintf(d, ">");
break;
default:
fprintf(d, "!%d(%d)!", OP(*s), opnd);
break;
}
if (!done)
GAP();
}
}
/*
- regchar - make a character printable
== static char *regchar(int ch);
*/
static char * /* -> representation */
regchar(ch)
int ch;
{
static char buf[10];
if (isprint(ch) || ch == ' ')
sprintf(buf, "%c", ch);
else
sprintf(buf, "\\%o", ch);
return(buf);
}
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