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268 lines
7.4 KiB
C
268 lines
7.4 KiB
C
/**********************************************************************
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regerror.c - Oniguruma (regular expression library)
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Copyright (C) 2002-2003 K.Kosako (kosako@sofnec.co.jp)
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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 char*
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regex_error_code_to_format(int code)
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{
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char *p;
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if (code >= 0) return (char* )0;
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switch (code) {
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case REG_MISMATCH:
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p = "mismatch"; break;
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case REG_NO_SUPPORT_CONFIG:
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p = "no support in this configuration"; break;
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case REGERR_MEMORY:
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p = "fail to memory allocation"; break;
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case REGERR_MATCH_STACK_LIMIT_OVER:
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p = "match-stack limit over"; break;
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case REGERR_TYPE_BUG:
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p = "undefined type (bug)"; break;
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case REGERR_PARSER_BUG:
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p = "internal parser error (bug)"; break;
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case REGERR_STACK_BUG:
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p = "stack error (bug)"; break;
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case REGERR_UNDEFINED_BYTECODE:
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p = "undefined bytecode (bug)"; break;
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case REGERR_UNEXPECTED_BYTECODE:
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p = "unexpected bytecode (bug)"; break;
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case REGERR_DEFAULT_ENCODING_IS_NOT_SETTED:
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p = "default multibyte-encoding is not setted"; break;
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case REGERR_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 REGERR_END_PATTERN_AT_LEFT_BRACE:
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p = "end pattern at left brace"; break;
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case REGERR_END_PATTERN_AT_LEFT_BRACKET:
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p = "end pattern at left bracket"; break;
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case REGERR_EMPTY_CHAR_CLASS:
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p = "empty char-class"; break;
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case REGERR_PREMATURE_END_OF_CHAR_CLASS:
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p = "premature end of char-class"; break;
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case REGERR_END_PATTERN_AT_BACKSLASH:
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p = "end pattern at backslash"; break;
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case REGERR_END_PATTERN_AT_META:
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p = "end pattern at meta"; break;
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case REGERR_END_PATTERN_AT_CONTROL:
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p = "end pattern at control"; break;
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case REGERR_META_CODE_SYNTAX:
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p = "illegal meta-code syntax"; break;
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case REGERR_CONTROL_CODE_SYNTAX:
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p = "illegal control-code syntax"; break;
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case REGERR_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 REGERR_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 REGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS:
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p = "unmatched range specifier in char-class"; break;
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case REGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED:
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p = "target of repeat operator is not specified"; break;
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case REGERR_TARGET_OF_REPEAT_OPERATOR_INVALID:
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p = "target of repeat operator is invalid"; break;
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case REGERR_NESTED_REPEAT_OPERATOR:
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p = "nested repeat operator"; break;
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case REGERR_UNMATCHED_CLOSE_PARENTHESIS:
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p = "unmatched close parenthesis"; break;
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case REGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS:
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p = "end pattern with unmatched parenthesis"; break;
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case REGERR_END_PATTERN_IN_GROUP:
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p = "end pattern in group"; break;
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case REGERR_UNDEFINED_GROUP_OPTION:
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p = "undefined group option"; break;
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case REGERR_INVALID_POSIX_BRACKET_TYPE:
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p = "invalid POSIX bracket type"; break;
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case REGERR_INVALID_LOOK_BEHIND_PATTERN:
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p = "invalid pattern in look-behind"; break;
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case REGERR_INVALID_REPEAT_RANGE_PATTERN:
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p = "invalid repeat range {lower,upper}"; break;
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case REGERR_TOO_BIG_NUMBER:
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p = "too big number"; break;
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case REGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE:
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p = "too big number for repeat range"; break;
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case REGERR_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 REGERR_EMPTY_RANGE_IN_CHAR_CLASS:
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p = "empty range in char class"; break;
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case REGERR_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 REGERR_TOO_MANY_MULTI_BYTE_RANGES:
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p = "too many multibyte code ranges are specified"; break;
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case REGERR_TOO_SHORT_MULTI_BYTE_STRING:
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p = "too short multibyte code string"; break;
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case REGERR_TOO_BIG_BACKREF_NUMBER:
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p = "too big backref number"; break;
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case REGERR_INVALID_BACKREF:
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#ifdef USE_NAMED_SUBEXP
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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 REGERR_TOO_BIG_WIDE_CHAR_VALUE:
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p = "too big wide-char value"; break;
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case REGERR_TOO_LONG_WIDE_CHAR_VALUE:
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p = "too long wide-char value"; break;
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case REGERR_INVALID_WIDE_CHAR_VALUE:
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p = "invalid wide-char value"; break;
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case REGERR_INVALID_SUBEXP_NAME:
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p = "invalid subexp name"; break;
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case REGERR_UNDEFINED_NAME_REFERENCE:
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p = "undefined name <%n> reference"; break;
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case REGERR_UNDEFINED_GROUP_REFERENCE:
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p = "undefined group reference"; break;
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case REGERR_MULTIPLEX_DEFINITION_NAME_CALL:
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p = "multiplex definition name <%n> call"; break;
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case REGERR_NEVER_ENDING_RECURSION:
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p = "never ending recursion"; break;
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case REGERR_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 p;
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}
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/* for REG_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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regex_error_code_to_str(UChar* s, int code, ...)
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#else
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regex_error_code_to_str(UChar* s, code, va_alist)
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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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RegErrorInfo* einfo;
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int 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 REGERR_UNDEFINED_NAME_REFERENCE:
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case REGERR_MULTIPLEX_DEFINITION_NAME_CALL:
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einfo = va_arg(vargs, RegErrorInfo*);
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len = einfo->par_end - einfo->par;
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q = regex_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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if (len > MAX_ERROR_PAR_LEN) {
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xmemcpy(p, einfo->par, MAX_ERROR_PAR_LEN - 3);
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p += (MAX_ERROR_PAR_LEN - 3);
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xmemcpy(p, "...", 3);
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p += 3;
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}
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else {
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xmemcpy(p, einfo->par, len);
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p += len;
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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 = regex_error_code_to_format(code);
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len = strlen(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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regex_snprintf_with_pattern(char buf[], int bufsize, RegCharEncoding enc,
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char* pat, char* pat_end, char *fmt, ...)
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#else
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regex_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
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char buf[];
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int bufsize;
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RegCharEncoding enc;
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char* pat;
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char* pat_end;
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const char *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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char *p, *s;
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va_list args;
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va_init_list(args, fmt);
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n = vsnprintf(buf, bufsize, 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(buf, ": /");
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s = buf + strlen(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 = mblen(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++ = '\\';
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*s++ = *p++;
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}
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else if (ismb(enc, *p)) {
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len = mblen(enc, *p);
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while (len-- > 0) *s++ = *p++;
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}
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else if (!IS_PRINT(*p) && !IS_SPACE(*p)) {
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char b[5];
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sprintf(b, "\\%03o", *p & 0377);
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len = strlen(b);
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while (len-- > 0) *s++ = *p++;
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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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