This commit was generated by cvs2svn to compensate for changes in r2634,
which included commits to RCS files with non-trunk default branches. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2635 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Ryan Norton
@@ -1,126 +1,109 @@
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#include <sys/types.h>
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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 <regex.h>
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#include "utils.h"
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#include "regerror.ih"
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/*
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= #define REG_OKAY 0
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= #define REG_NOMATCH 1
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= #define REG_BADPAT 2
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= #define REG_ECOLLATE 3
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= #define REG_ECTYPE 4
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= #define REG_EESCAPE 5
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= #define REG_ESUBREG 6
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= #define REG_EBRACK 7
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= #define REG_EPAREN 8
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= #define REG_EBRACE 9
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= #define REG_BADBR 10
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= #define REG_ERANGE 11
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= #define REG_ESPACE 12
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= #define REG_BADRPT 13
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= #define REG_EMPTY 14
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= #define REG_ASSERT 15
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= #define REG_INVARG 16
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= #define REG_ATOI 255 // convert name to number (!)
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= #define REG_ITOA 0400 // convert number to name (!)
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* regerror - error-code expansion
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*
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* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
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*
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* Development of this software was funded, in part, by Cray Research Inc.,
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* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
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* Corporation, none of whom are responsible for the results. The author
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* thanks all of them.
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*
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* Redistribution and use in source and binary forms -- with or without
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* modification -- are permitted for any purpose, provided that
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* redistributions in source form retain this entire copyright notice and
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* indicate the origin and nature of any modifications.
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*
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* I'd appreciate being given credit for this package in the documentation
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* of software which uses it, but that is not a requirement.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "regguts.h"
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/* unknown-error explanation */
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static char unk[] = "*** unknown regex error code 0x%x ***";
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/* struct to map among codes, code names, and explanations */
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static struct rerr {
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int code;
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char *name;
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char *explain;
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} rerrs[] = {
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REG_OKAY, "REG_OKAY", "no errors detected",
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REG_NOMATCH, "REG_NOMATCH", "regexec() failed to match",
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REG_BADPAT, "REG_BADPAT", "invalid regular expression",
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REG_ECOLLATE, "REG_ECOLLATE", "invalid collating element",
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REG_ECTYPE, "REG_ECTYPE", "invalid character class",
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REG_EESCAPE, "REG_EESCAPE", "trailing backslash (\\)",
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REG_ESUBREG, "REG_ESUBREG", "invalid backreference number",
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REG_EBRACK, "REG_EBRACK", "brackets ([ ]) not balanced",
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REG_EPAREN, "REG_EPAREN", "parentheses not balanced",
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REG_EBRACE, "REG_EBRACE", "braces not balanced",
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REG_BADBR, "REG_BADBR", "invalid repetition count(s)",
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REG_ERANGE, "REG_ERANGE", "invalid character range",
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REG_ESPACE, "REG_ESPACE", "out of memory",
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REG_BADRPT, "REG_BADRPT", "repetition-operator operand invalid",
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REG_EMPTY, "REG_EMPTY", "empty (sub)expression",
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REG_ASSERT, "REG_ASSERT", "\"can't happen\" -- you found a bug",
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REG_INVARG, "REG_INVARG", "invalid argument to regex routine",
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-1, "", "*** unknown regexp error code ***",
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/* the actual table is built from regex.h */
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# include "regerrs.h"
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{ -1, "", "oops" }, /* explanation special-cased in code */
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};
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/*
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- regerror - the interface to error numbers
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= extern size_t regerror(int, const regex_t *, char *, size_t);
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*/
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/* ARGSUSED */
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size_t
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size_t /* actual space needed (including NUL) */
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regerror(errcode, preg, errbuf, errbuf_size)
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int errcode;
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const regex_t *preg;
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char *errbuf;
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size_t errbuf_size;
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int errcode; /* error code, or REG_ATOI or REG_ITOA */
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CONST regex_t *preg; /* associated regex_t (unused at present) */
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char *errbuf; /* result buffer (unless errbuf_size==0) */
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size_t errbuf_size; /* available space in errbuf, can be 0 */
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{
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register struct rerr *r;
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register size_t len;
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register int target = errcode &~ REG_ITOA;
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register char *s;
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char convbuf[50];
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struct rerr *r;
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char *msg;
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char convbuf[sizeof(unk)+50]; /* 50 = plenty for int */
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size_t len;
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int icode;
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if (errcode == REG_ATOI)
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s = regatoi(preg, convbuf);
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else {
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switch (errcode) {
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case REG_ATOI: /* convert name to number */
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for (r = rerrs; r->code >= 0; r++)
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if (r->code == target)
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if (strcmp(r->name, errbuf) == 0)
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break;
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if (errcode®_ITOA) {
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if (r->code >= 0)
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(void) strcpy(convbuf, r->name);
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else
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sprintf(convbuf, "REG_0x%x", target);
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assert(strlen(convbuf) < sizeof(convbuf));
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s = convbuf;
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} else
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s = r->explain;
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sprintf(convbuf, "%d", r->code); /* -1 for unknown */
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msg = convbuf;
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break;
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case REG_ITOA: /* convert number to name */
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icode = atoi(errbuf); /* not our problem if this fails */
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for (r = rerrs; r->code >= 0; r++)
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if (r->code == icode)
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break;
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if (r->code >= 0)
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msg = r->name;
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else { /* unknown; tell him the number */
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sprintf(convbuf, "REG_%u", (unsigned)icode);
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msg = convbuf;
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}
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break;
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default: /* a real, normal error code */
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for (r = rerrs; r->code >= 0; r++)
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if (r->code == errcode)
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break;
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if (r->code >= 0)
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msg = r->explain;
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else { /* unknown; say so */
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sprintf(convbuf, unk, errcode);
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msg = convbuf;
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}
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break;
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}
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len = strlen(s) + 1;
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len = strlen(msg) + 1; /* space needed, including NUL */
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if (errbuf_size > 0) {
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if (errbuf_size > len)
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(void) strcpy(errbuf, s);
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else {
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(void) strncpy(errbuf, s, errbuf_size-1);
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strcpy(errbuf, msg);
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else { /* truncate to fit */
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strncpy(errbuf, msg, errbuf_size-1);
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errbuf[errbuf_size-1] = '\0';
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}
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}
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return(len);
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}
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/*
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- regatoi - internal routine to implement REG_ATOI
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== static char *regatoi(const regex_t *preg, char *localbuf);
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*/
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static char *
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regatoi(preg, localbuf)
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const regex_t *preg;
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char *localbuf;
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{
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register struct rerr *r;
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for (r = rerrs; r->code >= 0; r++)
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if (strcmp(r->name, preg->re_endp) == 0)
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break;
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if (r->code < 0)
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return("0");
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sprintf(localbuf, "%d", r->code);
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return(localbuf);
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return len;
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}
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