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/* $MidnightBSD$ */ |
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#include <sys/cdefs.h> |
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__FBSDID("$FreeBSD: stable/10/lib/libc/regex/grot/debug.c 292144 2015-12-13 03:51:49Z ngie $"); |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include <limits.h> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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#include <regex.h> |
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#include <wchar.h> |
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#include <wctype.h> |
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|
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#include "utils.h" |
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#include "regex2.h" |
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#include "debug.ih" |
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|
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/* |
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- regprint - print a regexp for debugging |
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== void regprint(regex_t *r, FILE *d); |
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*/ |
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void |
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regprint(r, d) |
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regex_t *r; |
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FILE *d; |
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{ |
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struct re_guts *g = r->re_g; |
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int i; |
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int c; |
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int last; |
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|
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fprintf(d, "%ld states", (long)g->nstates); |
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fprintf(d, ", first %ld last %ld", (long)g->firststate, |
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(long)g->laststate); |
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if (g->iflags&USEBOL) |
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fprintf(d, ", USEBOL"); |
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if (g->iflags&USEEOL) |
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fprintf(d, ", USEEOL"); |
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if (g->iflags&BAD) |
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fprintf(d, ", BAD"); |
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if (g->nsub > 0) |
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fprintf(d, ", nsub=%ld", (long)g->nsub); |
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if (g->must != NULL) |
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fprintf(d, ", must(%ld) `%*s'", (long)g->mlen, (int)g->mlen, |
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g->must); |
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if (g->backrefs) |
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fprintf(d, ", backrefs"); |
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if (g->nplus > 0) |
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fprintf(d, ", nplus %ld", (long)g->nplus); |
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fprintf(d, "\n"); |
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s_print(g, d); |
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} |
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|
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/* |
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- s_print - print the strip for debugging |
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== static void s_print(struct re_guts *g, FILE *d); |
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*/ |
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static void |
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s_print(g, d) |
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struct re_guts *g; |
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FILE *d; |
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{ |
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sop *s; |
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cset *cs; |
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int i; |
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int done = 0; |
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sop opnd; |
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int col = 0; |
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int last; |
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sopno offset = 2; |
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# define GAP() { if (offset % 5 == 0) { \ |
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if (col > 40) { \ |
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fprintf(d, "\n\t"); \ |
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col = 0; \ |
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} else { \ |
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fprintf(d, " "); \ |
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col++; \ |
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} \ |
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} else \ |
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col++; \ |
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offset++; \ |
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} |
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|
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if (OP(g->strip[0]) != OEND) |
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fprintf(d, "missing initial OEND!\n"); |
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for (s = &g->strip[1]; !done; s++) { |
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opnd = OPND(*s); |
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switch (OP(*s)) { |
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case OEND: |
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fprintf(d, "\n"); |
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done = 1; |
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break; |
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case OCHAR: |
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if (strchr("\\|()^$.[+*?{}!<> ", (char)opnd) != NULL) |
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fprintf(d, "\\%c", (char)opnd); |
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else |
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fprintf(d, "%s", regchar((char)opnd)); |
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break; |
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case OBOL: |
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fprintf(d, "^"); |
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break; |
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case OEOL: |
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fprintf(d, "$"); |
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break; |
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case OBOW: |
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fprintf(d, "\\{"); |
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break; |
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case OEOW: |
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fprintf(d, "\\}"); |
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break; |
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case OANY: |
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fprintf(d, "."); |
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break; |
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case OANYOF: |
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fprintf(d, "[(%ld)", (long)opnd); |
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#if 0 |
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cs = &g->sets[opnd]; |
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last = -1; |
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for (i = 0; i < g->csetsize+1; i++) /* +1 flushes */ |
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if (CHIN(cs, i) && i < g->csetsize) { |
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if (last < 0) { |
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fprintf(d, "%s", regchar(i)); |
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last = i; |
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} |
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} else { |
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if (last >= 0) { |
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if (last != i-1) |
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fprintf(d, "-%s", |
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regchar(i-1)); |
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last = -1; |
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} |
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} |
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#endif |
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fprintf(d, "]"); |
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break; |
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case OBACK_: |
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fprintf(d, "(\\<%ld>", (long)opnd); |
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break; |
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case O_BACK: |
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fprintf(d, "<%ld>\\)", (long)opnd); |
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break; |
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case OPLUS_: |
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fprintf(d, "(+"); |
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if (OP(*(s+opnd)) != O_PLUS) |
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fprintf(d, "<%ld>", (long)opnd); |
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break; |
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case O_PLUS: |
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if (OP(*(s-opnd)) != OPLUS_) |
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fprintf(d, "<%ld>", (long)opnd); |
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fprintf(d, "+)"); |
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break; |
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case OQUEST_: |
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fprintf(d, "(?"); |
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if (OP(*(s+opnd)) != O_QUEST) |
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fprintf(d, "<%ld>", (long)opnd); |
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break; |
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case O_QUEST: |
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if (OP(*(s-opnd)) != OQUEST_) |
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fprintf(d, "<%ld>", (long)opnd); |
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fprintf(d, "?)"); |
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break; |
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case OLPAREN: |
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fprintf(d, "((<%ld>", (long)opnd); |
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break; |
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case ORPAREN: |
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fprintf(d, "<%ld>))", (long)opnd); |
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break; |
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case OCH_: |
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fprintf(d, "<"); |
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if (OP(*(s+opnd)) != OOR2) |
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fprintf(d, "<%ld>", (long)opnd); |
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break; |
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case OOR1: |
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if (OP(*(s-opnd)) != OOR1 && OP(*(s-opnd)) != OCH_) |
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fprintf(d, "<%ld>", (long)opnd); |
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fprintf(d, "|"); |
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break; |
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case OOR2: |
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fprintf(d, "|"); |
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if (OP(*(s+opnd)) != OOR2 && OP(*(s+opnd)) != O_CH) |
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fprintf(d, "<%ld>", (long)opnd); |
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break; |
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case O_CH: |
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if (OP(*(s-opnd)) != OOR1) |
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fprintf(d, "<%ld>", (long)opnd); |
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fprintf(d, ">"); |
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break; |
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default: |
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fprintf(d, "!%ld(%ld)!", OP(*s), (long)opnd); |
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break; |
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} |
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if (!done) |
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GAP(); |
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} |
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} |
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|
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/* |
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- regchar - make a character printable |
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== static char *regchar(int ch); |
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*/ |
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static char * /* -> representation */ |
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regchar(ch) |
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int ch; |
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{ |
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static char buf[10]; |
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|
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if (isprint(ch) || ch == ' ') |
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sprintf(buf, "%c", ch); |
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else |
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sprintf(buf, "\\%o", ch); |
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return(buf); |
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} |
