| /********************************************************************** |
| 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 = "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_OVER_THREAD_PASS_LIMIT_COUNT: |
| p = "over thread pass limit count"; break; |
| |
| default: |
| p = "undefined error code"; break; |
| } |
| |
| return (UChar* )p; |
| } |
| |
| static void sprint_byte(char* s, unsigned int v) |
| { |
| sprintf(s, "%02x", (v & 0377)); |
| } |
| |
| static void sprint_byte_with_x(char* s, unsigned int v) |
| { |
| sprintf(s, "\\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) { |
| strcat((char* )buf, ": /"); |
| 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'; |
| } |
| } |