зеркало из https://github.com/github/ruby.git
372 строки
11 KiB
C
372 строки
11 KiB
C
/**********************************************************************
|
|
regerror.c - Oniguruma (regular expression library)
|
|
**********************************************************************/
|
|
/*-
|
|
* Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "regint.h"
|
|
#include <stdio.h> /* for vsnprintf() */
|
|
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
#include <stdarg.h>
|
|
#define va_init_list(a,b) va_start(a,b)
|
|
#else
|
|
#include <varargs.h>
|
|
#define va_init_list(a,b) va_start(a)
|
|
#endif
|
|
|
|
extern UChar*
|
|
onig_error_code_to_format(int code)
|
|
{
|
|
char *p;
|
|
|
|
if (code >= 0) return (UChar* )0;
|
|
|
|
switch (code) {
|
|
case ONIG_MISMATCH:
|
|
p = "mismatch"; break;
|
|
case ONIG_NO_SUPPORT_CONFIG:
|
|
p = "no support in this configuration"; break;
|
|
case ONIGERR_MEMORY:
|
|
p = "fail to memory allocation"; break;
|
|
case ONIGERR_MATCH_STACK_LIMIT_OVER:
|
|
p = "match-stack limit over"; break;
|
|
case ONIGERR_TYPE_BUG:
|
|
p = "undefined type (bug)"; break;
|
|
case ONIGERR_PARSER_BUG:
|
|
p = "internal parser error (bug)"; break;
|
|
case ONIGERR_STACK_BUG:
|
|
p = "stack error (bug)"; break;
|
|
case ONIGERR_UNDEFINED_BYTECODE:
|
|
p = "undefined bytecode (bug)"; break;
|
|
case ONIGERR_UNEXPECTED_BYTECODE:
|
|
p = "unexpected bytecode (bug)"; break;
|
|
case ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED:
|
|
p = "default multibyte-encoding is not setted"; break;
|
|
case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR:
|
|
p = "can't convert to wide-char on specified multibyte-encoding"; break;
|
|
case ONIGERR_INVALID_ARGUMENT:
|
|
p = "invalid argument"; break;
|
|
case ONIGERR_END_PATTERN_AT_LEFT_BRACE:
|
|
p = "end pattern at left brace"; break;
|
|
case ONIGERR_END_PATTERN_AT_LEFT_BRACKET:
|
|
p = "end pattern at left bracket"; break;
|
|
case ONIGERR_EMPTY_CHAR_CLASS:
|
|
p = "empty char-class"; break;
|
|
case ONIGERR_PREMATURE_END_OF_CHAR_CLASS:
|
|
p = "premature end of char-class"; break;
|
|
case ONIGERR_END_PATTERN_AT_ESCAPE:
|
|
p = "end pattern at escape"; break;
|
|
case ONIGERR_END_PATTERN_AT_META:
|
|
p = "end pattern at meta"; break;
|
|
case ONIGERR_END_PATTERN_AT_CONTROL:
|
|
p = "end pattern at control"; break;
|
|
case ONIGERR_META_CODE_SYNTAX:
|
|
p = "illegal meta-code syntax"; break;
|
|
case ONIGERR_CONTROL_CODE_SYNTAX:
|
|
p = "illegal control-code syntax"; break;
|
|
case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE:
|
|
p = "char-class value at end of range"; break;
|
|
case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE:
|
|
p = "char-class value at start of range"; break;
|
|
case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS:
|
|
p = "unmatched range specifier in char-class"; break;
|
|
case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED:
|
|
p = "target of repeat operator is not specified"; break;
|
|
case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID:
|
|
p = "target of repeat operator is invalid"; break;
|
|
case ONIGERR_NESTED_REPEAT_OPERATOR:
|
|
p = "nested repeat operator"; break;
|
|
case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS:
|
|
p = "unmatched close parenthesis"; break;
|
|
case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS:
|
|
p = "end pattern with unmatched parenthesis"; break;
|
|
case ONIGERR_END_PATTERN_IN_GROUP:
|
|
p = "end pattern in group"; break;
|
|
case ONIGERR_UNDEFINED_GROUP_OPTION:
|
|
p = "undefined group option"; break;
|
|
case ONIGERR_INVALID_POSIX_BRACKET_TYPE:
|
|
p = "invalid POSIX bracket type"; break;
|
|
case ONIGERR_INVALID_LOOK_BEHIND_PATTERN:
|
|
p = "invalid pattern in look-behind"; break;
|
|
case ONIGERR_INVALID_REPEAT_RANGE_PATTERN:
|
|
p = "invalid repeat range {lower,upper}"; break;
|
|
case ONIGERR_TOO_BIG_NUMBER:
|
|
p = "too big number"; break;
|
|
case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE:
|
|
p = "too big number for repeat range"; break;
|
|
case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE:
|
|
p = "upper is smaller than lower in repeat range"; break;
|
|
case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS:
|
|
p = "empty range in char class"; break;
|
|
case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE:
|
|
p = "mismatch multibyte code length in char-class range"; break;
|
|
case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES:
|
|
p = "too many multibyte code ranges are specified"; break;
|
|
case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING:
|
|
p = "too short multibyte code string"; break;
|
|
case ONIGERR_TOO_BIG_BACKREF_NUMBER:
|
|
p = "too big backref number"; break;
|
|
case ONIGERR_INVALID_BACKREF:
|
|
#ifdef USE_NAMED_GROUP
|
|
p = "invalid backref number/name"; break;
|
|
#else
|
|
p = "invalid backref number"; break;
|
|
#endif
|
|
case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED:
|
|
p = "numbered backref/call is not allowed. (use name)"; break;
|
|
case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE:
|
|
p = "too big wide-char value"; break;
|
|
case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE:
|
|
p = "too long wide-char value"; break;
|
|
case ONIGERR_INVALID_WIDE_CHAR_VALUE:
|
|
p = "invalid wide-char value"; break;
|
|
case ONIGERR_EMPTY_GROUP_NAME:
|
|
p = "group name is empty"; break;
|
|
case ONIGERR_INVALID_GROUP_NAME:
|
|
p = "invalid group name <%n>"; break;
|
|
case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
|
|
#ifdef USE_NAMED_GROUP
|
|
p = "invalid char in group name <%n>"; break;
|
|
#else
|
|
p = "invalid char in group number <%n>"; break;
|
|
#endif
|
|
case ONIGERR_UNDEFINED_NAME_REFERENCE:
|
|
p = "undefined name <%n> reference"; break;
|
|
case ONIGERR_UNDEFINED_GROUP_REFERENCE:
|
|
p = "undefined group <%n> reference"; break;
|
|
case ONIGERR_MULTIPLEX_DEFINED_NAME:
|
|
p = "multiplex defined name <%n>"; break;
|
|
case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
|
|
p = "multiplex definition name <%n> call"; break;
|
|
case ONIGERR_NEVER_ENDING_RECURSION:
|
|
p = "never ending recursion"; break;
|
|
case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY:
|
|
p = "group number is too big for capture history"; break;
|
|
case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
|
|
p = "invalid character property name {%n}"; break;
|
|
case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION:
|
|
p = "not supported encoding combination"; break;
|
|
case ONIGERR_INVALID_COMBINATION_OF_OPTIONS:
|
|
p = "invalid combination of options"; break;
|
|
case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT:
|
|
p = "over thread pass limit count"; break;
|
|
|
|
default:
|
|
p = "undefined error code"; break;
|
|
}
|
|
|
|
return (UChar* )p;
|
|
}
|
|
|
|
|
|
static int to_ascii(OnigEncoding enc, UChar *s, UChar *end,
|
|
UChar buf[], int buf_size, int *is_over)
|
|
{
|
|
int len;
|
|
UChar *p;
|
|
OnigCodePoint code;
|
|
|
|
if (ONIGENC_MBC_MINLEN(enc) > 1) {
|
|
p = s;
|
|
len = 0;
|
|
while (p < end) {
|
|
code = ONIGENC_MBC_TO_CODE(enc, p, end);
|
|
if (code >= 0x80) {
|
|
if (len + 5 <= buf_size) {
|
|
sprintf((char* )(&(buf[len])), "\\%03o",
|
|
(unsigned int )(code & 0377));
|
|
len += 5;
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
buf[len++] = (UChar )code;
|
|
}
|
|
|
|
p += enc_len(enc, p);
|
|
if (len >= buf_size) break;
|
|
}
|
|
|
|
*is_over = ((p < end) ? 1 : 0);
|
|
}
|
|
else {
|
|
len = MIN((end - s), buf_size);
|
|
xmemcpy(buf, s, (size_t )len);
|
|
*is_over = ((buf_size < (end - s)) ? 1 : 0);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
/* for ONIG_MAX_ERROR_MESSAGE_LEN */
|
|
#define MAX_ERROR_PAR_LEN 30
|
|
|
|
extern int
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
onig_error_code_to_str(UChar* s, int code, ...)
|
|
#else
|
|
onig_error_code_to_str(s, code, va_alist)
|
|
UChar* s;
|
|
int code;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
UChar *p, *q;
|
|
OnigErrorInfo* einfo;
|
|
int len, is_over;
|
|
UChar parbuf[MAX_ERROR_PAR_LEN];
|
|
va_list vargs;
|
|
|
|
va_init_list(vargs, code);
|
|
|
|
switch (code) {
|
|
case ONIGERR_UNDEFINED_NAME_REFERENCE:
|
|
case ONIGERR_UNDEFINED_GROUP_REFERENCE:
|
|
case ONIGERR_MULTIPLEX_DEFINED_NAME:
|
|
case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
|
|
case ONIGERR_INVALID_GROUP_NAME:
|
|
case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
|
|
case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
|
|
einfo = va_arg(vargs, OnigErrorInfo*);
|
|
len = to_ascii(einfo->enc, einfo->par, einfo->par_end,
|
|
parbuf, MAX_ERROR_PAR_LEN - 3, &is_over);
|
|
q = onig_error_code_to_format(code);
|
|
p = s;
|
|
while (*q != '\0') {
|
|
if (*q == '%') {
|
|
q++;
|
|
if (*q == 'n') { /* '%n': name */
|
|
xmemcpy(p, parbuf, len);
|
|
p += len;
|
|
if (is_over != 0) {
|
|
xmemcpy(p, "...", 3);
|
|
p += 3;
|
|
}
|
|
q++;
|
|
}
|
|
else
|
|
goto normal_char;
|
|
}
|
|
else {
|
|
normal_char:
|
|
*p++ = *q++;
|
|
}
|
|
}
|
|
*p = '\0';
|
|
len = p - s;
|
|
break;
|
|
|
|
default:
|
|
q = onig_error_code_to_format(code);
|
|
len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
|
|
xmemcpy(s, q, len);
|
|
s[len] = '\0';
|
|
break;
|
|
}
|
|
|
|
va_end(vargs);
|
|
return len;
|
|
}
|
|
|
|
|
|
void
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc,
|
|
UChar* pat, UChar* pat_end, const UChar *fmt, ...)
|
|
#else
|
|
onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
|
|
UChar buf[];
|
|
int bufsize;
|
|
OnigEncoding enc;
|
|
UChar* pat;
|
|
UChar* pat_end;
|
|
const UChar *fmt;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
int n, need, len;
|
|
UChar *p, *s, *bp;
|
|
UChar bs[6];
|
|
va_list args;
|
|
|
|
va_init_list(args, fmt);
|
|
n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args);
|
|
va_end(args);
|
|
|
|
need = (pat_end - pat) * 4 + 4;
|
|
|
|
if (n + need < bufsize) {
|
|
strcat((char* )buf, ": /");
|
|
s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf);
|
|
|
|
p = pat;
|
|
while (p < pat_end) {
|
|
if (*p == '\\') {
|
|
*s++ = *p++;
|
|
len = enc_len(enc, p);
|
|
while (len-- > 0) *s++ = *p++;
|
|
}
|
|
else if (*p == '/') {
|
|
*s++ = (unsigned char )'\\';
|
|
*s++ = *p++;
|
|
}
|
|
else if (ONIGENC_IS_MBC_HEAD(enc, p)) {
|
|
len = enc_len(enc, p);
|
|
if (ONIGENC_MBC_MINLEN(enc) == 1) {
|
|
while (len-- > 0) *s++ = *p++;
|
|
}
|
|
else { /* for UTF16 */
|
|
int blen;
|
|
|
|
while (len-- > 0) {
|
|
sprintf((char* )bs, "\\%03o", *p++ & 0377);
|
|
blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
|
|
bp = bs;
|
|
while (blen-- > 0) *s++ = *bp++;
|
|
}
|
|
}
|
|
}
|
|
else if (!ONIGENC_IS_CODE_PRINT(enc, *p) &&
|
|
!ONIGENC_IS_CODE_SPACE(enc, *p)) {
|
|
sprintf((char* )bs, "\\%03o", *p++ & 0377);
|
|
len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
|
|
bp = bs;
|
|
while (len-- > 0) *s++ = *bp++;
|
|
}
|
|
else {
|
|
*s++ = *p++;
|
|
}
|
|
}
|
|
|
|
*s++ = '/';
|
|
*s = '\0';
|
|
}
|
|
}
|