diff options
Diffstat (limited to 'src/regerror.c')
| -rw-r--r-- | src/regerror.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/src/regerror.c b/src/regerror.c new file mode 100644 index 0000000..16009bb --- /dev/null +++ b/src/regerror.c @@ -0,0 +1,389 @@ +/********************************************************************** + 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_FAIL_TO_INITIALIZE: + p = "fail to initialize"; 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 = "invalid meta-code syntax"; break; + case ONIGERR_CONTROL_CODE_SYNTAX: + p = "invalid 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_CODE_POINT_VALUE: + p = "invalid code point 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_LIBRARY_IS_NOT_INITIALIZED: + p = "library is not initialized"; break; + + default: + p = "undefined error code"; break; + } + + return (UChar* )p; +} + +static void sprint_byte(char* s, unsigned int v) +{ + xsnprintf(s, 3, "%02x", (v & 0377)); +} + +static void sprint_byte_with_x(char* s, unsigned int v) +{ + xsnprintf(s, 5, "\\x%02x", (v & 0377)); +} + +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 (code > 0xffff && len + 10 <= buf_size) { + sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 24)); + sprint_byte((char*)(&(buf[len+4])), (unsigned int)(code >> 16)); + sprint_byte((char*)(&(buf[len+6])), (unsigned int)(code >> 8)); + sprint_byte((char*)(&(buf[len+8])), (unsigned int)code); + len += 10; + } + else if (len + 6 <= buf_size) { + sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 8)); + sprint_byte((char*)(&(buf[len+4])), (unsigned int)code); + len += 6; + } + else { + break; + } + } + else { + buf[len++] = (UChar )code; + } + + p += enclen(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) { + xstrcat((char* )buf, ": /", bufsize); + s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf); + + p = pat; + while (p < pat_end) { + if (*p == '\\') { + *s++ = *p++; + len = enclen(enc, p); + while (len-- > 0) *s++ = *p++; + } + else if (*p == '/') { + *s++ = (unsigned char )'\\'; + *s++ = *p++; + } + else if (ONIGENC_IS_MBC_HEAD(enc, p)) { + len = enclen(enc, p); + if (ONIGENC_MBC_MINLEN(enc) == 1) { + while (len-- > 0) *s++ = *p++; + } + else { /* for UTF16 */ + int blen; + + while (len-- > 0) { + sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); + 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)) { + sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); + len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); + bp = bs; + while (len-- > 0) *s++ = *bp++; + } + else { + *s++ = *p++; + } + } + + *s++ = '/'; + *s = '\0'; + } +} |