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path: root/src/regress/lib/libc/regex/debug.c
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Diffstat (limited to 'src/regress/lib/libc/regex/debug.c')
-rw-r--r--src/regress/lib/libc/regex/debug.c244
1 files changed, 244 insertions, 0 deletions
diff --git a/src/regress/lib/libc/regex/debug.c b/src/regress/lib/libc/regex/debug.c
new file mode 100644
index 0000000000..861f550611
--- /dev/null
+++ b/src/regress/lib/libc/regex/debug.c
@@ -0,0 +1,244 @@
1/* $NetBSD: debug.c,v 1.2 1995/04/20 22:39:42 cgd Exp $ */
2
3#include <stdio.h>
4#include <string.h>
5#include <ctype.h>
6#include <limits.h>
7#include <stdlib.h>
8#include <sys/types.h>
9#include <regex.h>
10
11#include "utils.h"
12#include "regex2.h"
13#include "debug.ih"
14
15/*
16 - regprint - print a regexp for debugging
17 == void regprint(regex_t *r, FILE *d);
18 */
19void
20regprint(r, d)
21regex_t *r;
22FILE *d;
23{
24 register struct re_guts *g = r->re_g;
25 register int i;
26 register int c;
27 register int last;
28 int nincat[NC];
29
30 fprintf(d, "%ld states, %d categories", (long)g->nstates,
31 g->ncategories);
32 fprintf(d, ", first %ld last %ld", (long)g->firststate,
33 (long)g->laststate);
34 if (g->iflags&USEBOL)
35 fprintf(d, ", USEBOL");
36 if (g->iflags&USEEOL)
37 fprintf(d, ", USEEOL");
38 if (g->iflags&BAD)
39 fprintf(d, ", BAD");
40 if (g->nsub > 0)
41 fprintf(d, ", nsub=%ld", (long)g->nsub);
42 if (g->must != NULL)
43 fprintf(d, ", must(%ld) `%*s'", (long)g->mlen, (int)g->mlen,
44 g->must);
45 if (g->backrefs)
46 fprintf(d, ", backrefs");
47 if (g->nplus > 0)
48 fprintf(d, ", nplus %ld", (long)g->nplus);
49 fprintf(d, "\n");
50 s_print(g, d);
51 for (i = 0; i < g->ncategories; i++) {
52 nincat[i] = 0;
53 for (c = CHAR_MIN; c <= CHAR_MAX; c++)
54 if (g->categories[c] == i)
55 nincat[i]++;
56 }
57 fprintf(d, "cc0#%d", nincat[0]);
58 for (i = 1; i < g->ncategories; i++)
59 if (nincat[i] == 1) {
60 for (c = CHAR_MIN; c <= CHAR_MAX; c++)
61 if (g->categories[c] == i)
62 break;
63 fprintf(d, ", %d=%s", i, regchar(c));
64 }
65 fprintf(d, "\n");
66 for (i = 1; i < g->ncategories; i++)
67 if (nincat[i] != 1) {
68 fprintf(d, "cc%d\t", i);
69 last = -1;
70 for (c = CHAR_MIN; c <= CHAR_MAX+1; c++) /* +1 does flush */
71 if (c <= CHAR_MAX && g->categories[c] == i) {
72 if (last < 0) {
73 fprintf(d, "%s", regchar(c));
74 last = c;
75 }
76 } else {
77 if (last >= 0) {
78 if (last != c-1)
79 fprintf(d, "-%s",
80 regchar(c-1));
81 last = -1;
82 }
83 }
84 fprintf(d, "\n");
85 }
86}
87
88/*
89 - s_print - print the strip for debugging
90 == static void s_print(register struct re_guts *g, FILE *d);
91 */
92static void
93s_print(g, d)
94register struct re_guts *g;
95FILE *d;
96{
97 register sop *s;
98 register cset *cs;
99 register int i;
100 register int done = 0;
101 register sop opnd;
102 register int col = 0;
103 register int last;
104 register sopno offset = 2;
105# define GAP() { if (offset % 5 == 0) { \
106 if (col > 40) { \
107 fprintf(d, "\n\t"); \
108 col = 0; \
109 } else { \
110 fprintf(d, " "); \
111 col++; \
112 } \
113 } else \
114 col++; \
115 offset++; \
116 }
117
118 if (OP(g->strip[0]) != OEND)
119 fprintf(d, "missing initial OEND!\n");
120 for (s = &g->strip[1]; !done; s++) {
121 opnd = OPND(*s);
122 switch (OP(*s)) {
123 case OEND:
124 fprintf(d, "\n");
125 done = 1;
126 break;
127 case OCHAR:
128 if (strchr("\\|()^$.[+*?{}!<> ", (char)opnd) != NULL)
129 fprintf(d, "\\%c", (char)opnd);
130 else
131 fprintf(d, "%s", regchar((char)opnd));
132 break;
133 case OBOL:
134 fprintf(d, "^");
135 break;
136 case OEOL:
137 fprintf(d, "$");
138 break;
139 case OBOW:
140 fprintf(d, "\\{");
141 break;
142 case OEOW:
143 fprintf(d, "\\}");
144 break;
145 case OANY:
146 fprintf(d, ".");
147 break;
148 case OANYOF:
149 fprintf(d, "[(%ld)", (long)opnd);
150 cs = &g->sets[opnd];
151 last = -1;
152 for (i = 0; i < g->csetsize+1; i++) /* +1 flushes */
153 if (CHIN(cs, i) && i < g->csetsize) {
154 if (last < 0) {
155 fprintf(d, "%s", regchar(i));
156 last = i;
157 }
158 } else {
159 if (last >= 0) {
160 if (last != i-1)
161 fprintf(d, "-%s",
162 regchar(i-1));
163 last = -1;
164 }
165 }
166 fprintf(d, "]");
167 break;
168 case OBACK_:
169 fprintf(d, "(\\<%ld>", (long)opnd);
170 break;
171 case O_BACK:
172 fprintf(d, "<%ld>\\)", (long)opnd);
173 break;
174 case OPLUS_:
175 fprintf(d, "(+");
176 if (OP(*(s+opnd)) != O_PLUS)
177 fprintf(d, "<%ld>", (long)opnd);
178 break;
179 case O_PLUS:
180 if (OP(*(s-opnd)) != OPLUS_)
181 fprintf(d, "<%ld>", (long)opnd);
182 fprintf(d, "+)");
183 break;
184 case OQUEST_:
185 fprintf(d, "(?");
186 if (OP(*(s+opnd)) != O_QUEST)
187 fprintf(d, "<%ld>", (long)opnd);
188 break;
189 case O_QUEST:
190 if (OP(*(s-opnd)) != OQUEST_)
191 fprintf(d, "<%ld>", (long)opnd);
192 fprintf(d, "?)");
193 break;
194 case OLPAREN:
195 fprintf(d, "((<%ld>", (long)opnd);
196 break;
197 case ORPAREN:
198 fprintf(d, "<%ld>))", (long)opnd);
199 break;
200 case OCH_:
201 fprintf(d, "<");
202 if (OP(*(s+opnd)) != OOR2)
203 fprintf(d, "<%ld>", (long)opnd);
204 break;
205 case OOR1:
206 if (OP(*(s-opnd)) != OOR1 && OP(*(s-opnd)) != OCH_)
207 fprintf(d, "<%ld>", (long)opnd);
208 fprintf(d, "|");
209 break;
210 case OOR2:
211 fprintf(d, "|");
212 if (OP(*(s+opnd)) != OOR2 && OP(*(s+opnd)) != O_CH)
213 fprintf(d, "<%ld>", (long)opnd);
214 break;
215 case O_CH:
216 if (OP(*(s-opnd)) != OOR1)
217 fprintf(d, "<%ld>", (long)opnd);
218 fprintf(d, ">");
219 break;
220 default:
221 fprintf(d, "!%d(%d)!", OP(*s), opnd);
222 break;
223 }
224 if (!done)
225 GAP();
226 }
227}
228
229/*
230 - regchar - make a character printable
231 == static char *regchar(int ch);
232 */
233static char * /* -> representation */
234regchar(ch)
235int ch;
236{
237 static char buf[10];
238
239 if (isprint(ch) || ch == ' ')
240 sprintf(buf, "%c", ch);
241 else
242 sprintf(buf, "\\%o", ch);
243 return(buf);
244}
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