[279] | 1 | /**********************************************************************
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[331] | 2 | regposerr.c - Onigmo (Oniguruma-mod) (regular expression library)
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[279] | 3 | **********************************************************************/
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| 4 | /*-
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| 5 | * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
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[331] | 6 | * Copyright (c) 2011-2016 K.Takata <kentkt AT csc DOT jp>
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[279] | 7 | * All rights reserved.
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| 8 | *
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| 9 | * Redistribution and use in source and binary forms, with or without
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| 10 | * modification, are permitted provided that the following conditions
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| 11 | * are met:
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| 12 | * 1. Redistributions of source code must retain the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer.
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in the
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| 16 | * documentation and/or other materials provided with the distribution.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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| 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 28 | * SUCH DAMAGE.
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| 29 | */
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| 30 |
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| 31 | #include "config.h"
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[331] | 32 | #include "onigmoposix.h"
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| 33 | #include <string.h>
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[279] | 34 |
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[331] | 35 | #if defined(__GNUC__)
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| 36 | # define ARG_UNUSED __attribute__ ((unused))
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[279] | 37 | #else
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[331] | 38 | # define ARG_UNUSED
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[279] | 39 | #endif
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| 40 |
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[331] | 41 | #if defined(_WIN32) && !defined(__GNUC__)
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| 42 | # define xsnprintf sprintf_s
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| 43 | # define xstrncpy(dest,src,size) strncpy_s(dest,size,src,_TRUNCATE)
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[279] | 44 | #else
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[331] | 45 | # define xsnprintf snprintf
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| 46 | # define xstrncpy strncpy
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[279] | 47 | #endif
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| 48 |
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| 49 | #define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
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| 50 |
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| 51 | static const char* ESTRING[] = {
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| 52 | NULL,
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| 53 | "failed to match", /* REG_NOMATCH */
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| 54 | "Invalid regular expression", /* REG_BADPAT */
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| 55 | "invalid collating element referenced", /* REG_ECOLLATE */
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| 56 | "invalid character class type referenced", /* REG_ECTYPE */
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| 57 | "bad backslash-escape sequence", /* REG_EESCAPE */
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| 58 | "invalid back reference number", /* REG_ESUBREG */
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| 59 | "imbalanced [ and ]", /* REG_EBRACK */
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| 60 | "imbalanced ( and )", /* REG_EPAREN */
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| 61 | "imbalanced { and }", /* REG_EBRACE */
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| 62 | "invalid repeat range {n,m}", /* REG_BADBR */
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| 63 | "invalid range", /* REG_ERANGE */
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| 64 | "Out of memory", /* REG_ESPACE */
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| 65 | "? * + not preceded by valid regular expression", /* REG_BADRPT */
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| 66 |
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| 67 | /* Extended errors */
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| 68 | "internal error", /* REG_EONIG_INTERNAL */
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| 69 | "invalid wide char value", /* REG_EONIG_BADWC */
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| 70 | "invalid argument", /* REG_EONIG_BADARG */
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| 71 | };
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| 72 |
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| 73 | #include <stdio.h>
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| 74 |
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| 75 |
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| 76 | extern size_t
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| 77 | regerror(int posix_ecode, const regex_t* reg ARG_UNUSED, char* buf,
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| 78 | size_t size)
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| 79 | {
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| 80 | const char* s;
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| 81 | char tbuf[35];
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| 82 | size_t len;
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| 83 |
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| 84 | if (posix_ecode > 0
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| 85 | && posix_ecode < numberof(ESTRING)) {
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| 86 | s = ESTRING[posix_ecode];
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| 87 | }
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| 88 | else if (posix_ecode == 0) {
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| 89 | s = "";
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| 90 | }
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| 91 | else {
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[331] | 92 | xsnprintf(tbuf, sizeof(tbuf), "undefined error code (%d)", posix_ecode);
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[279] | 93 | s = tbuf;
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| 94 | }
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| 95 |
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| 96 | len = strlen(s) + 1; /* use strlen() because s is ascii encoding. */
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| 97 |
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| 98 | if (buf != NULL && size > 0) {
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[331] | 99 | xstrncpy(buf, s, size - 1);
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[279] | 100 | buf[size - 1] = '\0';
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| 101 | }
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| 102 | return len;
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| 103 | }
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