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