Ruby  1.9.3p392(2013-02-22revision39386)
regenc.h
Go to the documentation of this file.
1 #ifndef ONIGURUMA_REGENC_H
2 #define ONIGURUMA_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 #ifndef REGINT_H
32 #ifndef RUBY_EXTERN
33 #include "ruby/config.h"
34 #include "ruby/defines.h"
35 #endif
36 #ifdef ONIG_ESCAPE_UCHAR_COLLISION
37 #undef ONIG_ESCAPE_UCHAR_COLLISION
38 #endif
39 #endif
40 #include "ruby/oniguruma.h"
41 
42 #if defined __GNUC__ && __GNUC__ >= 4
43 #pragma GCC visibility push(default)
44 #endif
45 
46 typedef struct {
47  OnigCodePoint from;
48  OnigCodePoint to;
50 
51 
52 #ifndef NULL
53 #define NULL ((void* )0)
54 #endif
55 
56 #ifndef TRUE
57 #define TRUE 1
58 #endif
59 
60 #ifndef FALSE
61 #define FALSE 0
62 #endif
63 
64 #ifndef ARG_UNUSED
65 #if defined(__GNUC__)
66 # define ARG_UNUSED __attribute__ ((unused))
67 #else
68 # define ARG_UNUSED
69 #endif
70 #endif
71 
72 #define ONIG_IS_NULL(p) (((void*)(p)) == (void*)0)
73 #define ONIG_IS_NOT_NULL(p) (((void*)(p)) != (void*)0)
74 #define ONIG_CHECK_NULL_RETURN(p) if (ONIG_IS_NULL(p)) return NULL
75 #define ONIG_CHECK_NULL_RETURN_VAL(p,val) if (ONIG_IS_NULL(p)) return (val)
76 
77 #define enclen(enc,p,e) ((enc->max_enc_len == enc->min_enc_len) ? enc->min_enc_len : ONIGENC_MBC_ENC_LEN(enc,p,e))
78 
79 /* character types bit flag */
80 #define BIT_CTYPE_NEWLINE (1<< ONIGENC_CTYPE_NEWLINE)
81 #define BIT_CTYPE_ALPHA (1<< ONIGENC_CTYPE_ALPHA)
82 #define BIT_CTYPE_BLANK (1<< ONIGENC_CTYPE_BLANK)
83 #define BIT_CTYPE_CNTRL (1<< ONIGENC_CTYPE_CNTRL)
84 #define BIT_CTYPE_DIGIT (1<< ONIGENC_CTYPE_DIGIT)
85 #define BIT_CTYPE_GRAPH (1<< ONIGENC_CTYPE_GRAPH)
86 #define BIT_CTYPE_LOWER (1<< ONIGENC_CTYPE_LOWER)
87 #define BIT_CTYPE_PRINT (1<< ONIGENC_CTYPE_PRINT)
88 #define BIT_CTYPE_PUNCT (1<< ONIGENC_CTYPE_PUNCT)
89 #define BIT_CTYPE_SPACE (1<< ONIGENC_CTYPE_SPACE)
90 #define BIT_CTYPE_UPPER (1<< ONIGENC_CTYPE_UPPER)
91 #define BIT_CTYPE_XDIGIT (1<< ONIGENC_CTYPE_XDIGIT)
92 #define BIT_CTYPE_WORD (1<< ONIGENC_CTYPE_WORD)
93 #define BIT_CTYPE_ALNUM (1<< ONIGENC_CTYPE_ALNUM)
94 #define BIT_CTYPE_ASCII (1<< ONIGENC_CTYPE_ASCII)
95 
96 #define CTYPE_TO_BIT(ctype) (1<<(ctype))
97 #define CTYPE_IS_WORD_GRAPH_PRINT(ctype) \
98  ((ctype) == ONIGENC_CTYPE_WORD || (ctype) == ONIGENC_CTYPE_GRAPH ||\
99  (ctype) == ONIGENC_CTYPE_PRINT)
100 
101 
102 typedef struct {
103  const UChar *name;
104  int ctype;
105  short int len;
107 
108 #define PosixBracketEntryInit(name, ctype) {(const UChar *)name, ctype, (short int)(sizeof(name) - 1)}
109 
110 /* #define USE_CRNL_AS_LINE_TERMINATOR */
111 #define USE_UNICODE_PROPERTIES
112 /* #define USE_UNICODE_CASE_FOLD_TURKISH_AZERI */
113 /* #define USE_UNICODE_ALL_LINE_TERMINATORS */ /* see Unicode.org UTF#18 */
114 
115 
116 #define ONIG_ENCODING_INIT_DEFAULT ONIG_ENCODING_ASCII
117 
118 /* for encoding system implementation (internal) */
121 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));
122 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[]));
124 ONIG_EXTERN int onigenc_is_mbc_newline_0x0a P_((const UChar* p, const UChar* end, OnigEncoding enc));
125 
126 
127 /* methods for single byte encoding */
128 ONIG_EXTERN int onigenc_ascii_mbc_case_fold P_((OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower, OnigEncoding enc));
136 ONIG_EXTERN int onigenc_ascii_is_code_ctype P_((OnigCodePoint code, unsigned int ctype, OnigEncoding enc));
137 
138 /* methods for multi byte encoding */
140 ONIG_EXTERN int onigenc_mbn_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** p, const UChar* end, UChar* lower));
145 ONIG_EXTERN int onigenc_mb2_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));
148 ONIG_EXTERN int onigenc_mb4_is_code_ctype P_((OnigEncoding enc, OnigCodePoint code, unsigned int ctype));
149 
150 
151 /* in enc/unicode.c */
152 ONIG_EXTERN int onigenc_unicode_is_code_ctype P_((OnigCodePoint code, unsigned int ctype, OnigEncoding enc));
154 ONIG_EXTERN int onigenc_unicode_ctype_code_range P_((int ctype, const OnigCodePoint* ranges[]));
156 ONIG_EXTERN int onigenc_unicode_mbc_case_fold P_((OnigEncoding enc, OnigCaseFoldType flag, const UChar** pp, const UChar* end, UChar* fold));
158 
159 
160 #define UTF16_IS_SURROGATE_FIRST(c) (((c) & 0xfc) == 0xd8)
161 #define UTF16_IS_SURROGATE_SECOND(c) (((c) & 0xfc) == 0xdc)
162 
163 #define ONIGENC_ISO_8859_1_TO_LOWER_CASE(c) \
164  OnigEncISO_8859_1_ToLowerCaseTable[c]
165 #define ONIGENC_ISO_8859_1_TO_UPPER_CASE(c) \
166  OnigEncISO_8859_1_ToUpperCaseTable[c]
167 
170 
171 ONIG_EXTERN int
172 onigenc_with_ascii_strncmp P_((OnigEncoding enc, const UChar* p, const UChar* end, const UChar* sascii /* ascii */, int n));
174 onigenc_step P_((OnigEncoding enc, const UChar* p, const UChar* end, int n));
175 
176 /* defined in regexec.c, but used in enc/xxx.c */
177 extern int onig_is_in_code_range P_((const UChar* p, OnigCodePoint code));
178 
182 ONIG_EXTERN const unsigned short OnigEncAsciiCtypeTable[];
183 
184 #define ONIGENC_IS_ASCII_CODE(code) ((code) < 0x80)
185 #define ONIGENC_ASCII_CODE_TO_LOWER_CASE(c) OnigEncAsciiToLowerCaseTable[c]
186 #define ONIGENC_ASCII_CODE_TO_UPPER_CASE(c) OnigEncAsciiToUpperCaseTable[c]
187 #define ONIGENC_IS_ASCII_CODE_CTYPE(code,ctype) \
188  ((OnigEncAsciiCtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
189 #define ONIGENC_IS_ASCII_CODE_CASE_AMBIG(code) \
190  (ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_UPPER) ||\
191  ONIGENC_IS_ASCII_CODE_CTYPE(code, ONIGENC_CTYPE_LOWER))
192 
193 #ifdef ONIG_ENC_REGISTER
194 extern int ONIG_ENC_REGISTER(const char *, OnigEncodingType*);
195 #define OnigEncodingName(n) encoding_##n
196 #define OnigEncodingDeclare(n) static OnigEncodingType OnigEncodingName(n)
197 #define OnigEncodingDefine(f,n) \
198  OnigEncodingDeclare(n); \
199  void Init_##f(void) { \
200  ONIG_ENC_REGISTER(OnigEncodingName(n).name, \
201  &OnigEncodingName(n)); \
202  } \
203  OnigEncodingDeclare(n)
204 #else
205 #define OnigEncodingName(n) OnigEncoding##n
206 #define OnigEncodingDeclare(n) OnigEncodingType OnigEncodingName(n)
207 #define OnigEncodingDefine(f,n) OnigEncodingDeclare(n)
208 #endif
209 
210 /* macros for define replica encoding and encoding alias */
211 #define ENC_REPLICATE(name, orig)
212 #define ENC_ALIAS(name, orig)
213 #define ENC_DUMMY(name)
214 
215 #if defined __GNUC__ && __GNUC__ >= 4
216 #pragma GCC visibility pop
217 #endif
218 
219 #endif /* ONIGURUMA_REGENC_H */
220