/[pcre]/code/trunk/pcre_config.c
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Contents of /code/trunk/pcre_config.c

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Revision 1055 - (hide annotations) (download)
Tue Oct 16 15:53:30 2012 UTC (8 months ago) by chpe
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pcre32: Add 32-bit library

Create libpcre32 that operates on 32-bit characters (UTF-32).

This turned out to be surprisingly simple after the UTF-16 support
was introduced; mostly just extra ifdefs and adjusting and adding
some tests.
1 nigel 77 /*************************************************
2     * Perl-Compatible Regular Expressions *
3     *************************************************/
4    
5     /* PCRE is a library of functions to support regular expressions whose syntax
6     and semantics are as close as possible to those of the Perl 5 language.
7    
8     Written by Philip Hazel
9 ph10 836 Copyright (c) 1997-2012 University of Cambridge
10 nigel 77
11     -----------------------------------------------------------------------------
12     Redistribution and use in source and binary forms, with or without
13     modification, are permitted provided that the following conditions are met:
14    
15     * Redistributions of source code must retain the above copyright notice,
16     this list of conditions and the following disclaimer.
17    
18     * Redistributions in binary form must reproduce the above copyright
19     notice, this list of conditions and the following disclaimer in the
20     documentation and/or other materials provided with the distribution.
21    
22     * Neither the name of the University of Cambridge nor the names of its
23     contributors may be used to endorse or promote products derived from
24     this software without specific prior written permission.
25    
26     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36     POSSIBILITY OF SUCH DAMAGE.
37     -----------------------------------------------------------------------------
38     */
39    
40    
41     /* This module contains the external function pcre_config(). */
42    
43    
44 ph10 200 #ifdef HAVE_CONFIG_H
45 ph10 236 #include "config.h"
46 ph10 200 #endif
47 ph10 199
48 ph10 836 /* Keep the original link size. */
49     static int real_link_size = LINK_SIZE;
50    
51 nigel 77 #include "pcre_internal.h"
52    
53    
54     /*************************************************
55     * Return info about what features are configured *
56     *************************************************/
57    
58     /* This function has an extensible interface so that additional items can be
59     added compatibly.
60    
61     Arguments:
62     what what information is required
63     where where to put the information
64    
65     Returns: 0 if data returned, negative on error
66     */
67    
68 chpe 1055 #if defined COMPILE_PCRE8
69 ph10 359 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
70 nigel 77 pcre_config(int what, void *where)
71 chpe 1055 #elif defined COMPILE_PCRE16
72 ph10 836 PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
73     pcre16_config(int what, void *where)
74 chpe 1055 #elif defined COMPILE_PCRE32
75     PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
76     pcre32_config(int what, void *where)
77 ph10 836 #endif
78 nigel 77 {
79     switch (what)
80     {
81     case PCRE_CONFIG_UTF8:
82 chpe 1055 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
83 ph10 872 *((int *)where) = 0;
84 ph10 836 return PCRE_ERROR_BADOPTION;
85     #else
86     #if defined SUPPORT_UTF
87 nigel 77 *((int *)where) = 1;
88     #else
89     *((int *)where) = 0;
90     #endif
91     break;
92 ph10 836 #endif
93 nigel 77
94 ph10 836 case PCRE_CONFIG_UTF16:
95 chpe 1055 #if defined COMPILE_PCRE8 || defined COMPILE_PCRE32
96 ph10 872 *((int *)where) = 0;
97 ph10 836 return PCRE_ERROR_BADOPTION;
98     #else
99     #if defined SUPPORT_UTF
100     *((int *)where) = 1;
101     #else
102     *((int *)where) = 0;
103     #endif
104     break;
105     #endif
106    
107 chpe 1055 case PCRE_CONFIG_UTF32:
108     #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
109     *((int *)where) = 0;
110     return PCRE_ERROR_BADOPTION;
111     #else
112     #if defined SUPPORT_UTF
113     *((int *)where) = 1;
114     #else
115     *((int *)where) = 0;
116     #endif
117     break;
118     #endif
119    
120 nigel 77 case PCRE_CONFIG_UNICODE_PROPERTIES:
121     #ifdef SUPPORT_UCP
122     *((int *)where) = 1;
123     #else
124     *((int *)where) = 0;
125     #endif
126     break;
127    
128 ph10 667 case PCRE_CONFIG_JIT:
129     #ifdef SUPPORT_JIT
130     *((int *)where) = 1;
131     #else
132     *((int *)where) = 0;
133     #endif
134     break;
135    
136 zherczeg 884 case PCRE_CONFIG_JITTARGET:
137     #ifdef SUPPORT_JIT
138     *((const char **)where) = PRIV(jit_get_target)();
139     #else
140     *((const char **)where) = NULL;
141     #endif
142     break;
143    
144 nigel 77 case PCRE_CONFIG_NEWLINE:
145     *((int *)where) = NEWLINE;
146     break;
147    
148 ph10 231 case PCRE_CONFIG_BSR:
149     #ifdef BSR_ANYCRLF
150     *((int *)where) = 1;
151     #else
152     *((int *)where) = 0;
153     #endif
154     break;
155    
156 nigel 77 case PCRE_CONFIG_LINK_SIZE:
157 ph10 836 *((int *)where) = real_link_size;
158 nigel 77 break;
159    
160     case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
161     *((int *)where) = POSIX_MALLOC_THRESHOLD;
162     break;
163    
164     case PCRE_CONFIG_MATCH_LIMIT:
165 ph10 376 *((unsigned long int *)where) = MATCH_LIMIT;
166 nigel 77 break;
167    
168 nigel 87 case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
169 ph10 376 *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
170 nigel 87 break;
171    
172 nigel 77 case PCRE_CONFIG_STACKRECURSE:
173     #ifdef NO_RECURSE
174     *((int *)where) = 0;
175     #else
176     *((int *)where) = 1;
177     #endif
178     break;
179    
180     default: return PCRE_ERROR_BADOPTION;
181     }
182    
183     return 0;
184     }
185    
186     /* End of pcre_config.c */

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