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6ee2e54239
* regsyntax.c, unicode.c: new files along with Oniguruma 5.x. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12376 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
371 lines
11 KiB
C
371 lines
11 KiB
C
/**********************************************************************
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regerror.c - Oniguruma (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2002-2006 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
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* All rights reserved.
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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 provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "regint.h"
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#include <stdio.h> /* for vsnprintf() */
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#ifdef HAVE_STDARG_PROTOTYPES
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#include <stdarg.h>
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#define va_init_list(a,b) va_start(a,b)
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#else
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#include <varargs.h>
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#define va_init_list(a,b) va_start(a)
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#endif
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extern UChar*
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onig_error_code_to_format(int code)
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{
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char *p;
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if (code >= 0) return (UChar* )0;
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switch (code) {
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case ONIG_MISMATCH:
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p = "mismatch"; break;
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case ONIG_NO_SUPPORT_CONFIG:
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p = "no support in this configuration"; break;
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case ONIGERR_MEMORY:
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p = "fail to memory allocation"; break;
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case ONIGERR_MATCH_STACK_LIMIT_OVER:
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p = "match-stack limit over"; break;
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case ONIGERR_TYPE_BUG:
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p = "undefined type (bug)"; break;
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case ONIGERR_PARSER_BUG:
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p = "internal parser error (bug)"; break;
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case ONIGERR_STACK_BUG:
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p = "stack error (bug)"; break;
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case ONIGERR_UNDEFINED_BYTECODE:
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p = "undefined bytecode (bug)"; break;
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case ONIGERR_UNEXPECTED_BYTECODE:
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p = "unexpected bytecode (bug)"; break;
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case ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED:
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p = "default multibyte-encoding is not setted"; break;
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case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR:
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p = "can't convert to wide-char on specified multibyte-encoding"; break;
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case ONIGERR_INVALID_ARGUMENT:
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p = "invalid argument"; break;
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case ONIGERR_END_PATTERN_AT_LEFT_BRACE:
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p = "end pattern at left brace"; break;
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case ONIGERR_END_PATTERN_AT_LEFT_BRACKET:
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p = "end pattern at left bracket"; break;
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case ONIGERR_EMPTY_CHAR_CLASS:
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p = "empty char-class"; break;
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case ONIGERR_PREMATURE_END_OF_CHAR_CLASS:
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p = "premature end of char-class"; break;
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case ONIGERR_END_PATTERN_AT_ESCAPE:
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p = "end pattern at escape"; break;
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case ONIGERR_END_PATTERN_AT_META:
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p = "end pattern at meta"; break;
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case ONIGERR_END_PATTERN_AT_CONTROL:
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p = "end pattern at control"; break;
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case ONIGERR_META_CODE_SYNTAX:
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p = "illegal meta-code syntax"; break;
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case ONIGERR_CONTROL_CODE_SYNTAX:
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p = "illegal control-code syntax"; break;
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case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE:
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p = "char-class value at end of range"; break;
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case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE:
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p = "char-class value at start of range"; break;
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case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS:
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p = "unmatched range specifier in char-class"; break;
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case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED:
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p = "target of repeat operator is not specified"; break;
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case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID:
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p = "target of repeat operator is invalid"; break;
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case ONIGERR_NESTED_REPEAT_OPERATOR:
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p = "nested repeat operator"; break;
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case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS:
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p = "unmatched close parenthesis"; break;
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case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS:
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p = "end pattern with unmatched parenthesis"; break;
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case ONIGERR_END_PATTERN_IN_GROUP:
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p = "end pattern in group"; break;
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case ONIGERR_UNDEFINED_GROUP_OPTION:
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p = "undefined group option"; break;
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case ONIGERR_INVALID_POSIX_BRACKET_TYPE:
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p = "invalid POSIX bracket type"; break;
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case ONIGERR_INVALID_LOOK_BEHIND_PATTERN:
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p = "invalid pattern in look-behind"; break;
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case ONIGERR_INVALID_REPEAT_RANGE_PATTERN:
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p = "invalid repeat range {lower,upper}"; break;
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case ONIGERR_TOO_BIG_NUMBER:
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p = "too big number"; break;
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case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE:
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p = "too big number for repeat range"; break;
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case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE:
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p = "upper is smaller than lower in repeat range"; break;
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case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS:
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p = "empty range in char class"; break;
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case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE:
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p = "mismatch multibyte code length in char-class range"; break;
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case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES:
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p = "too many multibyte code ranges are specified"; break;
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case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING:
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p = "too short multibyte code string"; break;
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case ONIGERR_TOO_BIG_BACKREF_NUMBER:
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p = "too big backref number"; break;
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case ONIGERR_INVALID_BACKREF:
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#ifdef USE_NAMED_GROUP
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p = "invalid backref number/name"; break;
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#else
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p = "invalid backref number"; break;
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#endif
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case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED:
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p = "numbered backref/call is not allowed. (use name)"; break;
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case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE:
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p = "too big wide-char value"; break;
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case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE:
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p = "too long wide-char value"; break;
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case ONIGERR_INVALID_WIDE_CHAR_VALUE:
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p = "invalid wide-char value"; break;
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case ONIGERR_EMPTY_GROUP_NAME:
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p = "group name is empty"; break;
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case ONIGERR_INVALID_GROUP_NAME:
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p = "invalid group name <%n>"; break;
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case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
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#ifdef USE_NAMED_GROUP
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p = "invalid char in group name <%n>"; break;
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#else
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p = "invalid char in group number <%n>"; break;
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#endif
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case ONIGERR_UNDEFINED_NAME_REFERENCE:
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p = "undefined name <%n> reference"; break;
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case ONIGERR_UNDEFINED_GROUP_REFERENCE:
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p = "undefined group <%n> reference"; break;
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case ONIGERR_MULTIPLEX_DEFINED_NAME:
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p = "multiplex defined name <%n>"; break;
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case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
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p = "multiplex definition name <%n> call"; break;
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case ONIGERR_NEVER_ENDING_RECURSION:
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p = "never ending recursion"; break;
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case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY:
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p = "group number is too big for capture history"; break;
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case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
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p = "invalid character property name {%n}"; break;
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case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION:
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p = "not supported encoding combination"; break;
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case ONIGERR_INVALID_COMBINATION_OF_OPTIONS:
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p = "invalid combination of options"; break;
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case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT:
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p = "over thread pass limit count"; break;
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default:
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p = "undefined error code"; break;
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}
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return (UChar* )p;
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}
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static int to_ascii(OnigEncoding enc, UChar *s, UChar *end,
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UChar buf[], int buf_size, int *is_over)
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{
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int len;
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UChar *p;
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OnigCodePoint code;
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if (ONIGENC_MBC_MINLEN(enc) > 1) {
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p = s;
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len = 0;
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while (p < end) {
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code = ONIGENC_MBC_TO_CODE(enc, p, end);
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if (code >= 0x80) {
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if (len + 5 <= buf_size) {
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sprintf((char* )(&(buf[len])), "\\%03o",
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(unsigned int )(code & 0377));
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len += 5;
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}
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else {
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break;
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}
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}
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else {
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buf[len++] = (UChar )code;
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}
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p += enc_len(enc, p);
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if (len >= buf_size) break;
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}
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*is_over = ((p < end) ? 1 : 0);
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}
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else {
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len = MIN((end - s), buf_size);
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xmemcpy(buf, s, (size_t )len);
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*is_over = ((buf_size < (end - s)) ? 1 : 0);
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}
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return len;
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}
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/* for ONIG_MAX_ERROR_MESSAGE_LEN */
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#define MAX_ERROR_PAR_LEN 30
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extern int
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#ifdef HAVE_STDARG_PROTOTYPES
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onig_error_code_to_str(UChar* s, int code, ...)
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#else
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onig_error_code_to_str(s, code, va_alist)
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UChar* s;
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int code;
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va_dcl
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#endif
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{
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UChar *p, *q;
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OnigErrorInfo* einfo;
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int len, is_over;
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UChar parbuf[MAX_ERROR_PAR_LEN];
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va_list vargs;
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va_init_list(vargs, code);
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switch (code) {
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case ONIGERR_UNDEFINED_NAME_REFERENCE:
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case ONIGERR_UNDEFINED_GROUP_REFERENCE:
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case ONIGERR_MULTIPLEX_DEFINED_NAME:
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case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
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case ONIGERR_INVALID_GROUP_NAME:
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case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
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case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
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einfo = va_arg(vargs, OnigErrorInfo*);
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len = to_ascii(einfo->enc, einfo->par, einfo->par_end,
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parbuf, MAX_ERROR_PAR_LEN - 3, &is_over);
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q = onig_error_code_to_format(code);
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p = s;
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while (*q != '\0') {
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if (*q == '%') {
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q++;
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if (*q == 'n') { /* '%n': name */
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xmemcpy(p, parbuf, len);
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p += len;
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if (is_over != 0) {
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xmemcpy(p, "...", 3);
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p += 3;
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}
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q++;
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}
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else
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goto normal_char;
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}
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else {
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normal_char:
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*p++ = *q++;
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}
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}
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*p = '\0';
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len = p - s;
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break;
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default:
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q = onig_error_code_to_format(code);
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len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
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xmemcpy(s, q, len);
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s[len] = '\0';
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break;
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}
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va_end(vargs);
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return len;
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}
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void
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#ifdef HAVE_STDARG_PROTOTYPES
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onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc,
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UChar* pat, UChar* pat_end, const UChar *fmt, ...)
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#else
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onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
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UChar buf[];
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int bufsize;
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OnigEncoding enc;
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UChar* pat;
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UChar* pat_end;
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const UChar *fmt;
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va_dcl
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#endif
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{
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int n, need, len;
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UChar *p, *s, *bp;
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UChar bs[6];
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va_list args;
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va_init_list(args, fmt);
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n = vsnprintf((char* )buf, bufsize, (const char* )fmt, args);
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va_end(args);
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need = (pat_end - pat) * 4 + 4;
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if (n + need < bufsize) {
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strcat((char* )buf, ": /");
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s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf);
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p = pat;
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while (p < pat_end) {
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if (*p == '\\') {
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*s++ = *p++;
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len = enc_len(enc, p);
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while (len-- > 0) *s++ = *p++;
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}
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else if (*p == '/') {
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*s++ = (unsigned char )'\\';
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*s++ = *p++;
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}
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else if (ONIGENC_IS_MBC_HEAD(enc, p)) {
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len = enc_len(enc, p);
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if (ONIGENC_MBC_MINLEN(enc) == 1) {
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while (len-- > 0) *s++ = *p++;
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}
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else { /* for UTF16 */
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int blen;
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while (len-- > 0) {
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sprintf((char* )bs, "\\%03o", *p++ & 0377);
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blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
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bp = bs;
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while (blen-- > 0) *s++ = *bp++;
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}
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}
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}
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else if (!ONIGENC_IS_CODE_PRINT(enc, *p) &&
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!ONIGENC_IS_CODE_SPACE(enc, *p)) {
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sprintf((char* )bs, "\\%03o", *p++ & 0377);
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len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
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bp = bs;
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while (len-- > 0) *s++ = *bp++;
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}
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else {
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*s++ = *p++;
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}
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}
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*s++ = '/';
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*s = '\0';
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}
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}
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