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      1 #ifndef REGENC_H
      2 #define REGENC_H
      3 /**********************************************************************
      4   regenc.h -  Oniguruma (regular expression library)
      5 **********************************************************************/
      6 /*-
      7  * Copyright (c) 2002-2008  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #ifndef PACKAGE
     33 /* PACKAGE is defined in config.h */
     34 //#include "config.h"
     35 #endif
     36 
     37 #ifdef ONIG_ESCAPE_UCHAR_COLLISION
     38 #undef ONIG_ESCAPE_UCHAR_COLLISION
     39 #endif
     40 
     41 #include "oniguruma.h"
     42 
     43 typedef struct {
     44   OnigCodePoint from;
     45   OnigCodePoint to;
     46 } OnigPairCaseFoldCodes;
     47 
     48 
     49 #ifndef NULL
     50 #define NULL   ((void* )0)
     51 #endif
     52 
     53 #ifndef TRUE
     54 #define TRUE    1
     55 #endif
     56 
     57 #ifndef FALSE
     58 #define FALSE   0
     59 #endif
     60 
     61 #ifndef ARG_UNUSED
     62 #if defined(__GNUC__)
     63 #  define ARG_UNUSED  __attribute__ ((unused))
     64 #else
     65 #  define ARG_UNUSED
     66 #endif
     67 #endif
     68 
     69 #define ONIG_IS_NULL(p)                    (((void*)(p)) == (void*)0)
     70 #define ONIG_IS_NOT_NULL(p)                (((void*)(p)) != (void*)0)
     71 #define ONIG_CHECK_NULL_RETURN(p)          if (ONIG_IS_NULL(p)) return NULL
     72 #define ONIG_CHECK_NULL_RETURN_VAL(p,val)  if (ONIG_IS_NULL(p)) return (val)
     73 
     74 #define enclen(enc,p)      ONIGENC_MBC_ENC_LEN(enc,p)
     75 
     76 /* character types bit flag */
     77 #define BIT_CTYPE_NEWLINE  (1<< ONIGENC_CTYPE_NEWLINE)
     78 #define BIT_CTYPE_ALPHA    (1<< ONIGENC_CTYPE_ALPHA)
     79 #define BIT_CTYPE_BLANK    (1<< ONIGENC_CTYPE_BLANK)
     80 #define BIT_CTYPE_CNTRL    (1<< ONIGENC_CTYPE_CNTRL)
     81 #define BIT_CTYPE_DIGIT    (1<< ONIGENC_CTYPE_DIGIT)
     82 #define BIT_CTYPE_GRAPH    (1<< ONIGENC_CTYPE_GRAPH)
     83 #define BIT_CTYPE_LOWER    (1<< ONIGENC_CTYPE_LOWER)
     84 #define BIT_CTYPE_PRINT    (1<< ONIGENC_CTYPE_PRINT)
     85 #define BIT_CTYPE_PUNCT    (1<< ONIGENC_CTYPE_PUNCT)
     86 #define BIT_CTYPE_SPACE    (1<< ONIGENC_CTYPE_SPACE)
     87 #define BIT_CTYPE_UPPER    (1<< ONIGENC_CTYPE_UPPER)
     88 #define BIT_CTYPE_XDIGIT   (1<< ONIGENC_CTYPE_XDIGIT)
     89 #define BIT_CTYPE_WORD     (1<< ONIGENC_CTYPE_WORD)
     90 #define BIT_CTYPE_ALNUM    (1<< ONIGENC_CTYPE_ALNUM)
     91 #define BIT_CTYPE_ASCII    (1<< ONIGENC_CTYPE_ASCII)
     92 
     93 #define CTYPE_TO_BIT(ctype)  (1<<(ctype))
     94 #define CTYPE_IS_WORD_GRAPH_PRINT(ctype) \
     95   ((ctype) == ONIGENC_CTYPE_WORD || (ctype) == ONIGENC_CTYPE_GRAPH ||\
     96    (ctype) == ONIGENC_CTYPE_PRINT)
     97 
     98 
     99 typedef struct {
    100   UChar    *name;
    101   int       ctype;
    102   short int len;
    103 } PosixBracketEntryType;
    104 
    105 
    106 /* #define USE_CRNL_AS_LINE_TERMINATOR */
    107 #define USE_UNICODE_PROPERTIES
    108 /* #define USE_UNICODE_CASE_FOLD_TURKISH_AZERI */
    109 /* #define USE_UNICODE_ALL_LINE_TERMINATORS */  /* see Unicode.org UTF#18 */
    110 
    111 
    112 #define ONIG_ENCODING_INIT_DEFAULT           ONIG_ENCODING_ASCII
    113 
    114 /* for encoding system implementation (internal) */
    115 ONIG_EXTERN int onigenc_ascii_apply_all_case_fold P_((OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));
    116 ONIG_EXTERN int onigenc_ascii_get_case_fold_codes_by_str P_((OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));
    117 ONIG_EXTERN int onigenc_apply_all_case_fold_with_map P_((int map_size, const OnigPairCaseFoldCodes map[], int ess_tsett_flag, OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));
    118 ONIG_EXTERN int onigenc_get_case_fold_codes_by_str_with_map P_((int map_size, const OnigPairCaseFoldCodes map[], int ess_tsett_flag, OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));
    119 ONIG_EXTERN int onigenc_not_support_get_ctype_code_range P_((OnigCtype ctype, OnigCodePoint* sb_out, const OnigCodePoint* ranges[]));
    120 ONIG_EXTERN int onigenc_is_mbc_newline_0x0a P_((const UChar* p, const UChar* end));
    121 
    122 
    123 /* methods for single byte encoding */
    124 ONIG_EXTERN int onigenc_ascii_mbc_case_fold P_((OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower));
    125 ONIG_EXTERN int onigenc_single_byte_mbc_enc_len P_((const UChar* p));
    126 ONIG_EXTERN OnigCodePoint onigenc_single_byte_mbc_to_code P_((const UChar* p, const UChar* end));
    127 ONIG_EXTERN int onigenc_single_byte_code_to_mbclen P_((OnigCodePoint code));
    128 ONIG_EXTERN int onigenc_single_byte_code_to_mbc P_((OnigCodePoint code, UChar *buf));
    129 ONIG_EXTERN UChar* onigenc_single_byte_left_adjust_char_head P_((const UChar* start, const UChar* s));
    130 ONIG_EXTERN int onigenc_always_true_is_allowed_reverse_match P_((const UChar* s, const UChar* end));
    131 ONIG_EXTERN int onigenc_always_false_is_allowed_reverse_match P_((const UChar* s, const UChar* end));
    132 
    133 /* methods for multi byte encoding */
    134 ONIG_EXTERN OnigCodePoint onigenc_mbn_mbc_to_code P_((OnigEncoding enc, const UChar* p, const UChar* end));
    135 ONIG_EXTERN int onigenc_mbn_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower));
    136 ONIG_EXTERN int onigenc_mb2_code_to_mbclen P_((OnigCodePoint code));
    137 ONIG_EXTERN int onigenc_mb2_code_to_mbc P_((OnigEncoding enc, OnigCodePoint code, UChar *buf));
    138 ONIG_EXTERN int onigenc_minimum_property_name_to_ctype P_((OnigEncoding enc, UChar* p, UChar* end));
    139 ONIG_EXTERN int onigenc_unicode_property_name_to_ctype P_((OnigEncoding enc, UChar* p, UChar* end));
    140 ONIG_EXTERN int onigenc_mb2_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));
    141 ONIG_EXTERN int onigenc_mb4_code_to_mbclen P_((OnigCodePoint code));
    142 ONIG_EXTERN int onigenc_mb4_code_to_mbc P_((OnigEncoding enc, OnigCodePoint code, UChar *buf));
    143 ONIG_EXTERN int onigenc_mb4_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));
    144 
    145 
    146 /* in enc/unicode.c */
    147 ONIG_EXTERN int onigenc_unicode_is_code_ctype P_((OnigCodePoint code, unsigned int ctype));
    148 ONIG_EXTERN int onigenc_utf16_32_get_ctype_code_range P_((OnigCtype ctype, OnigCodePoint *sb_out, const OnigCodePoint* ranges[]));
    149 ONIG_EXTERN int onigenc_unicode_ctype_code_range P_((int ctype, const OnigCodePoint* ranges[]));
    150 ONIG_EXTERN int onigenc_unicode_get_case_fold_codes_by_str P_((OnigEncoding enc, OnigCaseFoldType flag, const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[]));
    151 ONIG_EXTERN int onigenc_unicode_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** pp, const UChar* end, UChar* fold));
    152 ONIG_EXTERN int onigenc_unicode_apply_all_case_fold P_((OnigCaseFoldType flag, OnigApplyAllCaseFoldFunc f, void* arg));
    153 
    154 
    155 #define UTF16_IS_SURROGATE_FIRST(c)    (((c) & 0xfc) == 0xd8)
    156 #define UTF16_IS_SURROGATE_SECOND(c)   (((c) & 0xfc) == 0xdc)
    157 
    158 #define ONIGENC_ISO_8859_1_TO_LOWER_CASE(c) \
    159   OnigEncISO_8859_1_ToLowerCaseTable[c]
    160 #define ONIGENC_ISO_8859_1_TO_UPPER_CASE(c) \
    161   OnigEncISO_8859_1_ToUpperCaseTable[c]
    162 
    163 ONIG_EXTERN const UChar OnigEncISO_8859_1_ToLowerCaseTable[];
    164 ONIG_EXTERN const UChar OnigEncISO_8859_1_ToUpperCaseTable[];
    165 
    166 ONIG_EXTERN int
    167 onigenc_with_ascii_strncmp P_((OnigEncoding enc, const UChar* p, const UChar* end, const UChar* sascii /* ascii */, int n));
    168 ONIG_EXTERN UChar*
    169 onigenc_step P_((OnigEncoding enc, const UChar* p, const UChar* end, int n));
    170 
    171 /* defined in regexec.c, but used in enc/xxx.c */
    172 extern int  onig_is_in_code_range P_((const UChar* p, OnigCodePoint code));
    173 
    174 ONIG_EXTERN OnigEncoding  OnigEncDefaultCharEncoding;
    175 ONIG_EXTERN const UChar  OnigEncAsciiToLowerCaseTable[];
    176 ONIG_EXTERN const UChar  OnigEncAsciiToUpperCaseTable[];
    177 ONIG_EXTERN const unsigned short OnigEncAsciiCtypeTable[];
    178 
    179 #define ONIGENC_IS_ASCII_CODE(code)  ((code) < 0x80)
    180 #define ONIGENC_ASCII_CODE_TO_LOWER_CASE(c) OnigEncAsciiToLowerCaseTable[c]
    181 #define ONIGENC_ASCII_CODE_TO_UPPER_CASE(c) OnigEncAsciiToUpperCaseTable[c]
    182 #define ONIGENC_IS_ASCII_CODE_CTYPE(code,ctype) \
    183   ((OnigEncAsciiCtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
    184 #define ONIGENC_IS_ASCII_CODE_CASE_AMBIG(code) \
    185  (ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_UPPER) ||\
    186   ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_LOWER))
    187 
    188 
    189 #endif /* REGENC_H */
    190