regerror.c File Reference

#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <stdlib.h>
#include "rz_regex.h"
#include "utils.h"

Go to the source code of this file.

Classes
struct	rerr

Functions
static char *	regatoi (const RzRegex *, char *, int)
RZ_API size_t	rz_regex_error (int errcode, const RzRegex *preg, char *errbuf, size_t errbuf_size)

Variables
static struct rerr	rerrs []

Function Documentation

regatoi()

static char * regatoi ( const RzRegex *  preg, char *  localbuf, int  localbufsize  )

static

Definition at line 118 of file regerror.c.

                                                               {
    struct rerr *r;
 
    for (r = rerrs; r->code != 0; r++) {
        if (strcmp(r->name, preg->re_endp) == 0) {
            break;
        }
    }
    if (r->code == 0) {
        return ("0");
    }
 
    (void)snprintf(localbuf, localbufsize, "%d", r->code);
    return (localbuf);
}

References r, rz_regex_t::re_endp, rerrs, and snprintf.

Referenced by rz_regex_error().

rz_regex_error()

RZ_API size_t rz_regex_error	(	int	errcode,
		const RzRegex *	preg,
		char *	errbuf,
		size_t	errbuf_size
	)

Definition at line 78 of file regerror.c.

                                                                                                 {
    struct rerr *r;
    size_t len;
    int target = errcode & ~RZ_REGEX_ITOA;
    char *s;
    char convbuf[50];
 
    if (errcode == RZ_REGEX_ATOI) {
        s = regatoi(preg, convbuf, sizeof convbuf);
    } else {
        for (r = rerrs; r->code != 0; r++) {
            if (r->code == target) {
                break;
            }
        }
 
        if (errcode & RZ_REGEX_ITOA) {
            if (r->code != 0) {
                STRLCPY(convbuf, r->name, sizeof(convbuf) - 1);
            } else {
                snprintf(convbuf, sizeof convbuf, "RZ_REGEX_0x%x", target);
            }
            s = convbuf;
        } else {
            s = r->explain;
        }
    }
 
    len = strlen(s) + 1;
    if (errbuf_size > 0) {
        STRLCPY(errbuf, s, errbuf_size - 1);
    }
 
    return len;
}

References len, r, regatoi(), rerrs, RZ_REGEX_ATOI, RZ_REGEX_ITOA, s, snprintf, and STRLCPY.

Referenced by check_fmt(), and magiccheck().

Variable Documentation

rerrs

struct rerr rerrs[]

static

Initial value:

= {
    { RZ_REGEX_NOMATCH, "RZ_REGEX_NOMATCH", "regexec() failed to match" },
    { RZ_REGEX_BADPAT, "RZ_REGEX_BADPAT", "invalid regular expression" },
    { RZ_REGEX_ECOLLATE, "RZ_REGEX_ECOLLATE", "invalid collating element" },
    { RZ_REGEX_ECTYPE, "RZ_REGEX_ECTYPE", "invalid character class" },
    { RZ_REGEX_EESCAPE, "RZ_REGEX_EESCAPE", "trailing backslash (\\)" },
    { RZ_REGEX_ESUBREG, "RZ_REGEX_ESUBREG", "invalid backreference number" },
    { RZ_REGEX_EBRACK, "RZ_REGEX_EBRACK", "brackets ([ ]) not balanced" },
    { RZ_REGEX_EPAREN, "RZ_REGEX_EPAREN", "parentheses not balanced" },
    { RZ_REGEX_EBRACE, "RZ_REGEX_EBRACE", "braces not balanced" },
    { RZ_REGEX_BADBR, "RZ_REGEX_BADBR", "invalid repetition count(s)" },
    { RZ_REGEX_ERANGE, "RZ_REGEX_ERANGE", "invalid character range" },
    { RZ_REGEX_ESPACE, "RZ_REGEX_ESPACE", "out of memory" },
    { RZ_REGEX_BADRPT, "RZ_REGEX_BADRPT", "repetition-operator operand invalid" },
    { RZ_REGEX_EMPTY, "RZ_REGEX_EMPTY", "empty (sub)expression" },
    { RZ_REGEX_ASSERT, "RZ_REGEX_ASSERT", "\"can't happen\" -- you found a bug" },
    { RZ_REGEX_INVARG, "RZ_REGEX_INVARG", "invalid argument to regex routine" },
    { 0, "", "*** unknown regexp error code ***" }
}

Referenced by regatoi(), and rz_regex_error().