mirror of
git://git.gnupg.org/gnupg.git
synced 2024-09-07 12:56:21 +02:00
![NIIBE Yutaka](/assets/img/avatar_default.png)
* regexp/jimregexp.h, regexp/jimregexp.c: Fix from JimTcl. -- Apply the change in JimTcl: commit ac35b8a6ec417f75b5ec86ca64ea1614a8170a38 Author: Steve Bennett <steveb@workware.net.au> Date: Mon May 4 20:43:46 2020 +1000 regexp: Improved error message Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
#ifndef JIMREGEXP_H
|
|
#define JIMREGEXP_H
|
|
|
|
/** regexp(3)-compatible regular expression implementation for Jim.
|
|
*
|
|
* See jimregexp.c for details
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
|
|
typedef struct {
|
|
int rm_so;
|
|
int rm_eo;
|
|
} regmatch_t;
|
|
|
|
/*
|
|
* The "internal use only" fields in regexp.h are present to pass info from
|
|
* compile to execute that permits the execute phase to run lots faster on
|
|
* simple cases. They are:
|
|
*
|
|
* regstart char that must begin a match; '\0' if none obvious
|
|
* reganch is the match anchored (at beginning-of-line only)?
|
|
* regmust string (pointer into program) that match must include, or NULL
|
|
* regmlen length of regmust string
|
|
*
|
|
* Regstart and reganch permit very fast decisions on suitable starting points
|
|
* for a match, cutting down the work a lot. Regmust permits fast rejection
|
|
* of lines that cannot possibly match. The regmust tests are costly enough
|
|
* that regcomp() supplies a regmust only if the r.e. contains something
|
|
* potentially expensive (at present, the only such thing detected is * or +
|
|
* at the start of the r.e., which can involve a lot of backup). Regmlen is
|
|
* supplied because the test in regexec() needs it and regcomp() is computing
|
|
* it anyway.
|
|
*/
|
|
|
|
struct regexp {
|
|
/* -- public -- */
|
|
int re_nsub; /* number of parenthesized subexpressions */
|
|
|
|
/* -- private -- */
|
|
int cflags; /* Flags used when compiling */
|
|
int err; /* Any error which occurred during compile */
|
|
int regstart; /* Internal use only. */
|
|
int reganch; /* Internal use only. */
|
|
int regmust; /* Internal use only. */
|
|
int regmlen; /* Internal use only. */
|
|
int *program; /* Allocated */
|
|
|
|
/* working state - compile */
|
|
const char *regparse; /* Input-scan pointer. */
|
|
int p; /* Current output pos in program */
|
|
int proglen; /* Allocated program size */
|
|
|
|
/* working state - exec */
|
|
int eflags; /* Flags used when executing */
|
|
const char *start; /* Initial string pointer. */
|
|
const char *reginput; /* Current input pointer. */
|
|
const char *regbol; /* Beginning of input, for ^ check. */
|
|
|
|
/* Input to regexec() */
|
|
regmatch_t *pmatch; /* submatches will be stored here */
|
|
int nmatch; /* size of pmatch[] */
|
|
};
|
|
|
|
typedef struct regexp regex_t;
|
|
|
|
#define REG_EXTENDED 0
|
|
#define REG_NEWLINE 1
|
|
#define REG_ICASE 2
|
|
|
|
#define REG_NOTBOL 16
|
|
|
|
enum {
|
|
REG_NOERROR, /* Success. */
|
|
REG_NOMATCH, /* Didn't find a match (for regexec). */
|
|
REG_BADPAT, /* >= REG_BADPAT is an error */
|
|
REG_ERR_NULL_ARGUMENT,
|
|
REG_ERR_UNKNOWN,
|
|
REG_ERR_TOO_BIG,
|
|
REG_ERR_NOMEM,
|
|
REG_ERR_TOO_MANY_PAREN,
|
|
REG_ERR_UNMATCHED_PAREN,
|
|
REG_ERR_UNMATCHED_BRACES,
|
|
REG_ERR_BAD_COUNT,
|
|
REG_ERR_JUNK_ON_END,
|
|
REG_ERR_OPERAND_COULD_BE_EMPTY,
|
|
REG_ERR_NESTED_COUNT,
|
|
REG_ERR_INTERNAL,
|
|
REG_ERR_COUNT_FOLLOWS_NOTHING,
|
|
REG_ERR_INVALID_ESCAPE,
|
|
REG_ERR_CORRUPTED,
|
|
REG_ERR_NULL_CHAR,
|
|
REG_ERR_UNMATCHED_BRACKET,
|
|
REG_ERR_NUM
|
|
};
|
|
|
|
int regcomp(regex_t *preg, const char *regex, int cflags);
|
|
int regexec(regex_t *preg, const char *string, size_t nmatch, regmatch_t pmatch[], int eflags);
|
|
size_t regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size);
|
|
void regfree(regex_t *preg);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|