799 lines
16 KiB
C
799 lines
16 KiB
C
/* $Id: regex.c,v 1.16 2002/01/21 17:57:28 ukai Exp $ */
|
|
/*
|
|
* regex: Regular expression pattern match library
|
|
*
|
|
* by A.ITO, December 1989
|
|
* Revised by A.ITO, January 2002
|
|
*/
|
|
|
|
#ifdef REGEX_DEBUG
|
|
#include <sys/types.h>
|
|
#include <malloc.h>
|
|
#endif /* REGEX_DEBUG */
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <gc.h>
|
|
#include "regex.h"
|
|
#include "config.h"
|
|
|
|
#ifndef NULL
|
|
#define NULL 0
|
|
#endif /* not NULL */
|
|
|
|
#if LANG == JA
|
|
#define JP_CHARSET
|
|
#endif
|
|
|
|
#define RE_ITER_LIMIT 65535
|
|
|
|
#define RE_MATCHMODE 0x07
|
|
#define RE_NORMAL 0x00
|
|
#define RE_ANY 0x01
|
|
#define RE_WHICH 0x02
|
|
#define RE_EXCEPT 0x03
|
|
#define RE_SUBREGEX 0x04
|
|
#define RE_BEGIN 0x05
|
|
#define RE_END 0x06
|
|
#define RE_ENDMARK 0x07
|
|
|
|
#define RE_OPT 0x08
|
|
#define RE_ANYTIME 0x10
|
|
#define RE_IGNCASE 0x40
|
|
|
|
#define RE_MODE(x) ((x)->mode&RE_MATCHMODE)
|
|
#define RE_SET_MODE(x,v) ((x)->mode = (((x)->mode&~RE_MATCHMODE)|((v)&RE_MATCHMODE)))
|
|
|
|
#ifdef REGEX_DEBUG
|
|
void debugre(regexchar *);
|
|
char *lc2c(longchar *, int);
|
|
int verbose;
|
|
#endif /* REGEX_DEBUG */
|
|
|
|
#ifndef IS_ALPHA
|
|
#define IS_ALPHA(x) (!((x)&0x80) && isalpha(x))
|
|
#define IS_KANJI1(x) ((x)&0x80)
|
|
#endif
|
|
|
|
#ifdef JP_CHARSET
|
|
#define RE_KANJI(p) (((unsigned char)*(p) << 8) | (unsigned char)*((p)+1))
|
|
#endif
|
|
|
|
#define RE_WHICH_RANGE 0xffff
|
|
|
|
static Regex DefaultRegex;
|
|
#define CompiledRegex DefaultRegex.re
|
|
#define Cstorage DefaultRegex.storage
|
|
|
|
static int regmatch(regexchar *, char *, char *, int, char **);
|
|
static int regmatch1(regexchar *, longchar);
|
|
static int matchWhich(longchar *, longchar);
|
|
|
|
/*
|
|
* regexCompile: compile regular expression
|
|
*/
|
|
char *
|
|
regexCompile(char *ex, int igncase)
|
|
{
|
|
char *msg;
|
|
newRegex(ex, igncase, &DefaultRegex, &msg);
|
|
return msg;
|
|
}
|
|
|
|
static Regex *
|
|
newRegex0(char **ex, int igncase, Regex *regex, char **msg, int level)
|
|
{
|
|
char *p;
|
|
longchar *r;
|
|
regexchar *re;
|
|
int m;
|
|
longchar *st_ptr;
|
|
|
|
if (regex == NULL)
|
|
regex = (Regex *)GC_malloc(sizeof(Regex));
|
|
regex->alt_regex = NULL;
|
|
re = regex->re;
|
|
st_ptr = regex->storage;
|
|
for (p = *ex; *p != '\0'; p++) {
|
|
re->mode = 0;
|
|
switch (*p) {
|
|
case '.':
|
|
re->p.pattern = NULL;
|
|
RE_SET_MODE(re, RE_ANY);
|
|
re++;
|
|
break;
|
|
case '$':
|
|
re->p.pattern = NULL;
|
|
RE_SET_MODE(re, RE_END);
|
|
re++;
|
|
break;
|
|
case '^':
|
|
re->p.pattern = NULL;
|
|
RE_SET_MODE(re, RE_BEGIN);
|
|
re++;
|
|
break;
|
|
case '+':
|
|
if (re == regex->re ||
|
|
(RE_MODE(re - 1) != RE_ANY && (re - 1)->p.pattern == NULL)) {
|
|
if (msg)
|
|
*msg = "Invalid regular expression";
|
|
return NULL;
|
|
}
|
|
*re = *(re - 1);
|
|
re->mode |= RE_ANYTIME;
|
|
re++;
|
|
break;
|
|
case '*':
|
|
if (re == regex->re ||
|
|
(RE_MODE(re - 1) != RE_ANY && (re - 1)->p.pattern == NULL)) {
|
|
if (msg)
|
|
*msg = "Invalid regular expression";
|
|
return NULL;
|
|
}
|
|
(re - 1)->mode |= RE_ANYTIME;
|
|
break;
|
|
case '?':
|
|
if (re == regex->re ||
|
|
(RE_MODE(re - 1) != RE_ANY && (re - 1)->p.pattern == NULL)) {
|
|
if (msg)
|
|
*msg = "Invalid regular expression";
|
|
return NULL;
|
|
}
|
|
(re - 1)->mode |= RE_OPT;
|
|
break;
|
|
case '[':
|
|
r = st_ptr;
|
|
if (*++p == '^') {
|
|
p++;
|
|
m = RE_EXCEPT;
|
|
}
|
|
else
|
|
m = RE_WHICH;
|
|
if (*p == '-' || *p == ']')
|
|
*(st_ptr++) = (unsigned char)*(p++);
|
|
while (*p != ']') {
|
|
if (*p == '\\') {
|
|
p++;
|
|
#ifdef JP_CHARSET
|
|
if (IS_KANJI1(*p)) {
|
|
*(st_ptr++) = RE_KANJI(p);
|
|
p += 2;
|
|
}
|
|
else
|
|
#endif
|
|
*(st_ptr++) = (unsigned char)*(p++);
|
|
}
|
|
else if (*p == '-' && *(p + 1) != ']') {
|
|
*(st_ptr++) = RE_WHICH_RANGE;
|
|
p++;
|
|
}
|
|
else if (*p == '\0') {
|
|
if (msg)
|
|
*msg = "Missing ]";
|
|
return NULL;
|
|
}
|
|
#ifdef JP_CHARSET
|
|
else if (IS_KANJI1(*p)) {
|
|
*(st_ptr++) = RE_KANJI(p);
|
|
p += 2;
|
|
}
|
|
#endif
|
|
else
|
|
*(st_ptr++) = (unsigned char)*(p++);
|
|
if (st_ptr >= ®ex->storage[STORAGE_MAX]) {
|
|
if (msg)
|
|
*msg = "Regular expression too long";
|
|
return NULL;
|
|
}
|
|
}
|
|
*(st_ptr++) = '\0';
|
|
re->p.pattern = r;
|
|
RE_SET_MODE(re, m);
|
|
re++;
|
|
break;
|
|
case '|':
|
|
RE_SET_MODE(re, RE_ENDMARK);
|
|
re++;
|
|
p++;
|
|
regex->alt_regex = newRegex0(&p, igncase, NULL, msg, level);
|
|
if (regex->alt_regex == NULL)
|
|
return NULL;
|
|
*ex = p;
|
|
return regex;
|
|
case '(':
|
|
RE_SET_MODE(re, RE_SUBREGEX);
|
|
p++;
|
|
re->p.sub = newRegex0(&p, igncase, NULL, msg, level + 1);
|
|
if (re->p.sub == NULL)
|
|
return NULL;
|
|
re++;
|
|
break;
|
|
case ')':
|
|
if (level == 0) {
|
|
if (msg)
|
|
*msg = "Too many ')'";
|
|
return NULL;
|
|
}
|
|
RE_SET_MODE(re, RE_ENDMARK);
|
|
re++;
|
|
*ex = p;
|
|
return regex;
|
|
case '\\':
|
|
p++;
|
|
default:
|
|
#ifdef JP_CHARSET
|
|
if (IS_KANJI1(*p)) {
|
|
*(st_ptr) = RE_KANJI(p);
|
|
p++;
|
|
}
|
|
else
|
|
#endif
|
|
*st_ptr = (unsigned char)*p;
|
|
re->p.pattern = st_ptr;
|
|
st_ptr++;
|
|
RE_SET_MODE(re, RE_NORMAL);
|
|
if (igncase)
|
|
re->mode |= RE_IGNCASE;
|
|
re++;
|
|
}
|
|
if (st_ptr >= ®ex->storage[STORAGE_MAX] ||
|
|
re >= ®ex->re[REGEX_MAX]) {
|
|
if (msg)
|
|
*msg = "Regular expression too long";
|
|
return NULL;
|
|
}
|
|
}
|
|
RE_SET_MODE(re, RE_ENDMARK);
|
|
if (msg)
|
|
*msg = NULL;
|
|
*ex = p;
|
|
return regex;
|
|
}
|
|
|
|
Regex *
|
|
newRegex(char *ex, int igncase, Regex *regex, char **msg)
|
|
{
|
|
return newRegex0(&ex, igncase, regex, msg, 0);
|
|
}
|
|
|
|
/*
|
|
* regexMatch: match regular expression
|
|
*/
|
|
int
|
|
regexMatch(char *str, int len, int firstp)
|
|
{
|
|
return RegexMatch(&DefaultRegex, str, len, firstp);
|
|
}
|
|
|
|
int
|
|
RegexMatch(Regex *re, char *str, int len, int firstp)
|
|
{
|
|
char *p, *ep;
|
|
char *lpos;
|
|
Regex *r;
|
|
|
|
if (str == NULL)
|
|
return 0;
|
|
if (len < 0)
|
|
len = strlen(str);
|
|
re->position = NULL;
|
|
ep = str + len;
|
|
for (p = str; p <= ep; p++) {
|
|
lpos = NULL;
|
|
re->lposition = NULL;
|
|
for (r = re; r != NULL; r = r->alt_regex) {
|
|
switch (regmatch(r->re, p, ep, firstp && (p == str), &lpos)) {
|
|
case 1: /* matched */
|
|
re->position = p;
|
|
if (re->lposition == NULL || re->lposition < lpos)
|
|
re->lposition = lpos;
|
|
break;
|
|
case -1: /* error */
|
|
re->position = NULL;
|
|
return -1;
|
|
}
|
|
}
|
|
if (re->lposition != NULL) {
|
|
/* matched */
|
|
return 1;
|
|
}
|
|
#ifdef JP_CHARSET
|
|
if (IS_KANJI1(*p))
|
|
p++;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* matchedPosition: last matched position
|
|
*/
|
|
void
|
|
MatchedPosition(Regex *re, char **first, char **last)
|
|
{
|
|
*first = re->position;
|
|
*last = re->lposition;
|
|
}
|
|
|
|
void
|
|
matchedPosition(char **first, char **last)
|
|
{
|
|
*first = DefaultRegex.position;
|
|
*last = DefaultRegex.lposition;
|
|
}
|
|
|
|
/*
|
|
* Intermal routines
|
|
*/
|
|
|
|
struct MatchingContext1 {
|
|
int label;
|
|
regexchar *re;
|
|
char *lastpos;
|
|
char *str;
|
|
int iter_limit;
|
|
int n_any;
|
|
int firstp;
|
|
char *end_p;
|
|
Regex *sub_regex;
|
|
struct MatchingContext1 *sub_ctx;
|
|
struct MatchingContext2 *ctx2;
|
|
};
|
|
|
|
struct MatchingContext2 {
|
|
int label;
|
|
Regex *regex;
|
|
char *lastpos;
|
|
struct MatchingContext1 *ctx;
|
|
struct MatchingContext2 *ctx2;
|
|
char *str;
|
|
int n_any;
|
|
int firstp;
|
|
};
|
|
|
|
|
|
#define YIELD(retval,context,lnum) (context)->label = lnum; return (retval); label##lnum:
|
|
|
|
static int regmatch_iter(struct MatchingContext1 *,
|
|
regexchar *, char *, char *, int);
|
|
|
|
static int
|
|
regmatch_sub_anytime(struct MatchingContext2 *c, Regex *regex,
|
|
regexchar * pat2,
|
|
char *str, char *end_p, int iter_limit, int firstp)
|
|
{
|
|
switch (c->label) {
|
|
case 1:
|
|
goto label1;
|
|
case 2:
|
|
goto label2;
|
|
case 3:
|
|
goto label3;
|
|
}
|
|
c->ctx = GC_malloc(sizeof(struct MatchingContext1));
|
|
c->ctx2 = GC_malloc(sizeof(struct MatchingContext2));
|
|
c->ctx->label = 0;
|
|
c->regex = regex;
|
|
c->n_any = 0;
|
|
c->str = str;
|
|
c->firstp = firstp;
|
|
for (;;) {
|
|
c->ctx->label = 0;
|
|
while (regmatch_iter(c->ctx, c->regex->re, c->str, end_p, c->firstp)) {
|
|
c->n_any = c->ctx->lastpos - c->str;
|
|
if (c->n_any <= 0)
|
|
continue;
|
|
c->firstp = 0;
|
|
if (RE_MODE(pat2) == RE_ENDMARK) {
|
|
c->lastpos = c->str + c->n_any;
|
|
YIELD(1, c, 1);
|
|
}
|
|
else if (regmatch(pat2, c->str + c->n_any, end_p,
|
|
c->firstp, &c->lastpos) == 1) {
|
|
YIELD(1, c, 2);
|
|
}
|
|
if (iter_limit == 1)
|
|
continue;
|
|
c->ctx2->label = 0;
|
|
while (regmatch_sub_anytime(c->ctx2, regex, pat2,
|
|
c->str + c->n_any, end_p,
|
|
iter_limit - 1, c->firstp)) {
|
|
|
|
c->lastpos = c->ctx2->lastpos;
|
|
YIELD(1, c, 3);
|
|
}
|
|
}
|
|
if (c->regex->alt_regex == NULL)
|
|
break;
|
|
c->regex = c->regex->alt_regex;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
regmatch_iter(struct MatchingContext1 *c,
|
|
regexchar * re, char *str, char *end_p, int firstp)
|
|
{
|
|
switch (c->label) {
|
|
case 1:
|
|
goto label1;
|
|
case 2:
|
|
goto label2;
|
|
case 3:
|
|
goto label3;
|
|
case 4:
|
|
goto label4;
|
|
case 5:
|
|
goto label5;
|
|
case 6:
|
|
goto label6;
|
|
case 7:
|
|
goto label7;
|
|
}
|
|
if (RE_MODE(re) == RE_ENDMARK)
|
|
return 0;
|
|
c->re = re;
|
|
c->firstp = firstp;
|
|
c->str = str;
|
|
c->end_p = end_p;
|
|
c->sub_ctx = NULL;
|
|
c->lastpos = NULL;
|
|
while (RE_MODE(c->re) != RE_ENDMARK) {
|
|
if (c->re->mode & (RE_ANYTIME | RE_OPT)) {
|
|
if (c->re->mode & RE_ANYTIME)
|
|
c->iter_limit = RE_ITER_LIMIT;
|
|
else
|
|
c->iter_limit = 1;
|
|
c->n_any = -1;
|
|
while (c->n_any < c->iter_limit) {
|
|
if (c->str + c->n_any >= c->end_p) {
|
|
return 0;
|
|
}
|
|
if (c->n_any >= 0) {
|
|
if (RE_MODE(c->re) == RE_SUBREGEX) {
|
|
c->ctx2 = GC_malloc(sizeof(struct MatchingContext2));
|
|
c->ctx2->label = 0;
|
|
while (regmatch_sub_anytime(c->ctx2,
|
|
c->re->p.sub,
|
|
c->re + 1,
|
|
c->str + c->n_any,
|
|
c->end_p,
|
|
c->iter_limit,
|
|
c->firstp)) {
|
|
c->n_any = c->ctx2->lastpos - c->str;
|
|
c->lastpos = c->ctx2->lastpos;
|
|
YIELD(1, c, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
#ifdef JP_CHARSET
|
|
else if (IS_KANJI1(c->str[c->n_any])) {
|
|
longchar k;
|
|
k = RE_KANJI(c->str + c->n_any);
|
|
if (regmatch1(c->re, k)) {
|
|
c->n_any += 2;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
c->firstp = 0;
|
|
}
|
|
#endif
|
|
else {
|
|
longchar k;
|
|
k = (unsigned char)c->str[c->n_any];
|
|
if (regmatch1(c->re, k)) {
|
|
c->n_any++;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
c->firstp = 0;
|
|
}
|
|
}
|
|
else
|
|
c->n_any++;
|
|
if (RE_MODE(c->re + 1) == RE_ENDMARK) {
|
|
c->lastpos = c->str + c->n_any;
|
|
YIELD(1, c, 2);
|
|
}
|
|
else if (regmatch(c->re + 1, c->str + c->n_any, c->end_p,
|
|
c->firstp, &c->lastpos) == 1) {
|
|
YIELD(1, c, 3);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
/* regexp other than pat*, pat+ and pat? */
|
|
switch (RE_MODE(c->re)) {
|
|
case RE_BEGIN:
|
|
if (!c->firstp)
|
|
return 0;
|
|
c->re++;
|
|
break;
|
|
case RE_END:
|
|
if (c->str >= c->end_p) {
|
|
c->lastpos = c->str;
|
|
c->re++;
|
|
YIELD(1, c, 4);
|
|
}
|
|
else {
|
|
c->lastpos = NULL;
|
|
return 0;
|
|
}
|
|
break;
|
|
case RE_SUBREGEX:
|
|
if (c->sub_ctx == NULL) {
|
|
c->sub_ctx = GC_malloc(sizeof(struct MatchingContext1));
|
|
}
|
|
c->sub_regex = c->re->p.sub;
|
|
for (;;) {
|
|
c->sub_ctx->label = 0;
|
|
while (regmatch_iter(c->sub_ctx, c->sub_regex->re,
|
|
c->str, c->end_p, c->firstp)) {
|
|
if (c->sub_ctx->lastpos != c->str)
|
|
c->firstp = 0;
|
|
if (RE_MODE(c->re + 1) == RE_ENDMARK) {
|
|
c->lastpos = c->sub_ctx->lastpos;
|
|
YIELD(1, c, 5);
|
|
}
|
|
else if (regmatch(c->re + 1, c->sub_ctx->lastpos, c->end_p,
|
|
c->firstp, &c->lastpos) == 1) {
|
|
YIELD(1, c, 6);
|
|
}
|
|
}
|
|
if (c->sub_regex->alt_regex == NULL)
|
|
break;
|
|
c->sub_regex = c->sub_regex->alt_regex;
|
|
}
|
|
return 0;
|
|
default:
|
|
#ifdef JP_CHARSET
|
|
if (IS_KANJI1(*c->str)) {
|
|
longchar k;
|
|
k = RE_KANJI(c->str);
|
|
c->str += 2;
|
|
if (!regmatch1(c->re, k))
|
|
return 0;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
longchar k;
|
|
k = (unsigned char)*(c->str++);
|
|
if (!regmatch1(c->re, k))
|
|
return 0;
|
|
}
|
|
c->re++;
|
|
c->firstp = 0;
|
|
}
|
|
if (c->str > c->end_p) {
|
|
return 0;
|
|
}
|
|
}
|
|
c->lastpos = c->str;
|
|
#ifdef REGEX_DEBUG
|
|
if (verbose)
|
|
printf("Succeed: %s %d\n", c->str, c->lastpos - c->str);
|
|
#endif
|
|
YIELD(1, c, 7);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
regmatch(regexchar * re, char *str, char *end_p, int firstp, char **lastpos)
|
|
{
|
|
struct MatchingContext1 contx;
|
|
|
|
*lastpos = NULL;
|
|
|
|
contx.label = 0;
|
|
while (regmatch_iter(&contx, re, str, end_p, firstp)) {
|
|
#ifdef REGEX_DEBUG
|
|
char *p;
|
|
if (verbose) {
|
|
printf("regmatch: matched <");
|
|
for (p = str; p < contx.lastpos; p++)
|
|
putchar(*p);
|
|
printf(">\n");
|
|
}
|
|
#endif
|
|
if (*lastpos == NULL || *lastpos < contx.lastpos)
|
|
*lastpos = contx.lastpos;
|
|
}
|
|
if (*lastpos == NULL)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int
|
|
regmatch1(regexchar * re, longchar c)
|
|
{
|
|
switch (RE_MODE(re)) {
|
|
case RE_ANY:
|
|
#ifdef REGEX_DEBUG
|
|
if (verbose)
|
|
printf("%c vs any. -> 1\n", c);
|
|
#endif /* REGEX_DEBUG */
|
|
return 1;
|
|
case RE_NORMAL:
|
|
#ifdef REGEX_DEBUG
|
|
if (verbose)
|
|
printf("RE=%c vs %c -> %d\n", *re->p.pattern, c,
|
|
*re->p.pattern == c);
|
|
#endif /* REGEX_DEBUG */
|
|
if (re->mode & RE_IGNCASE) {
|
|
if (*re->p.pattern < 127 && c < 127 &&
|
|
IS_ALPHA(*re->p.pattern) && IS_ALPHA(c))
|
|
return tolower(*re->p.pattern) == tolower(c);
|
|
else
|
|
return *re->p.pattern == c;
|
|
}
|
|
else
|
|
return (*re->p.pattern == c);
|
|
case RE_WHICH:
|
|
return matchWhich(re->p.pattern, c);
|
|
case RE_EXCEPT:
|
|
return !matchWhich(re->p.pattern, c);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
matchWhich(longchar * pattern, longchar c)
|
|
{
|
|
longchar *p = pattern;
|
|
int ans = 0;
|
|
|
|
#ifdef REGEX_DEBUG
|
|
if (verbose)
|
|
printf("RE pattern = %s char=%s", lc2c(pattern, 10000), lc2c(&c, 1));
|
|
#endif /* REGEX_DEBUG */
|
|
while (*p != '\0') {
|
|
if (*(p + 1) == RE_WHICH_RANGE && *(p + 2) != '\0') { /* Char class. */
|
|
if (*p <= c && c <= *(p + 2)) {
|
|
ans = 1;
|
|
break;
|
|
}
|
|
p += 3;
|
|
}
|
|
else {
|
|
if (*p == c) {
|
|
ans = 1;
|
|
break;
|
|
}
|
|
p++;
|
|
}
|
|
}
|
|
#ifdef REGEX_DEBUG
|
|
if (verbose)
|
|
printf(" -> %d\n", ans);
|
|
#endif /* REGEX_DEBUG */
|
|
return ans;
|
|
}
|
|
|
|
#ifdef REGEX_DEBUG
|
|
char *
|
|
lc2c(longchar * x, int len)
|
|
{
|
|
static char y[100];
|
|
int i = 0;
|
|
char *r;
|
|
|
|
while (x[i] && i < len) {
|
|
if (x[i] == RE_WHICH_RANGE)
|
|
y[i++] = '-';
|
|
else if (x[i] >= 128) {
|
|
y[i++] = ((x[i] >> 8) & 0xff);
|
|
y[i++] = (x[i] & 0xff);
|
|
}
|
|
else
|
|
y[i++] = x[i];
|
|
}
|
|
y[i] = '\0';
|
|
r = GC_malloc_atomic(i + 1);
|
|
strcpy(r, y);
|
|
return r;
|
|
}
|
|
|
|
void
|
|
debugre(regexchar * re)
|
|
{
|
|
for (; RE_MODE(re) != RE_ENDMARK; re++) {
|
|
switch (RE_MODE(re)) {
|
|
case RE_BEGIN:
|
|
printf("Begin ");
|
|
continue;
|
|
case RE_END:
|
|
printf("End ");
|
|
continue;
|
|
}
|
|
if (re->mode & RE_ANYTIME)
|
|
printf("Anytime-");
|
|
if (re->mode & RE_OPT)
|
|
printf("Opt-");
|
|
|
|
switch (RE_MODE(re)) {
|
|
case RE_ANY:
|
|
printf("Any ");
|
|
break;
|
|
case RE_NORMAL:
|
|
printf("Match-to'%c' ", *re->p.pattern);
|
|
break;
|
|
case RE_WHICH:
|
|
printf("One-of\"%s\" ", lc2c(re->p.pattern, 10000));
|
|
break;
|
|
case RE_EXCEPT:
|
|
printf("Other-than\"%s\" ", lc2c(re->p.pattern, 10000));
|
|
break;
|
|
case RE_SUBREGEX:
|
|
{
|
|
Regex *r = re->p.sub;
|
|
printf("(");
|
|
while (r) {
|
|
debugre(r->re);
|
|
if (r->alt_regex)
|
|
printf(" | ");
|
|
r = r->alt_regex;
|
|
}
|
|
printf(")");
|
|
break;
|
|
}
|
|
default:
|
|
printf("Unknown ");
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* REGEX_DEBUG */
|
|
|
|
#ifdef REGEXTEST
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
char buf[128], buf2[128];
|
|
char *msg;
|
|
Regex *re;
|
|
char *fpos, *epos;
|
|
FILE *f = stdin;
|
|
int i = 1;
|
|
|
|
#ifdef REGEX_DEBUG
|
|
for (i = 1; i < argc; i++) {
|
|
if (strcmp(argv[i], "-v") == 0)
|
|
verbose = 1;
|
|
else
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
if (argc > i)
|
|
f = fopen(argv[i], "r");
|
|
if (f == NULL) {
|
|
fprintf(stderr, "Can't open %s\n", argv[i]);
|
|
exit(1);
|
|
}
|
|
while (fscanf(f, "%s%s", buf, buf2) == 2) {
|
|
re = newRegex(buf, 0, NULL, &msg);
|
|
if (re == NULL) {
|
|
printf("Error on regexp /%s/: %s\n", buf, msg);
|
|
exit(1);
|
|
}
|
|
if (RegexMatch(re, buf2, -1, 1)) {
|
|
printf("/%s/\t\"%s\"\t\"", buf, buf2);
|
|
MatchedPosition(re, &fpos, &epos);
|
|
while (fpos < epos)
|
|
putchar(*(fpos++));
|
|
putchar('"');
|
|
}
|
|
else
|
|
printf("/%s/\t\"%s\"\tno_match", buf, buf2);
|
|
putchar('\n');
|
|
}
|
|
/* notreatched */
|
|
return 0;
|
|
}
|
|
#endif
|