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authorIan Jackson <ijackson@chiark.greenend.org.uk>2016-07-13 21:24:43 +0100
committerIan Jackson <ijackson@chiark.greenend.org.uk>2016-07-13 21:24:43 +0100
commitcba4af1b7643b0da036ff78fd152f74a906c4e97 (patch)
tree84f90cc1a9542b2f374932b04ea0752eabbd3741 /pcre_config.c
Commit upstream pcre-8.39.tar.bz2
Diffstat (limited to 'pcre_config.c')
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+/*************************************************
+* Perl-Compatible Regular Expressions *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+ Written by Philip Hazel
+ Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the name of the University of Cambridge nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_config(). */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* Keep the original link size. */
+static int real_link_size = LINK_SIZE;
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+* Return info about what features are configured *
+*************************************************/
+
+/* This function has an extensible interface so that additional items can be
+added compatibly.
+
+Arguments:
+ what what information is required
+ where where to put the information
+
+Returns: 0 if data returned, negative on error
+*/
+
+#if defined COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_config(int what, void *where)
+#elif defined COMPILE_PCRE16
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_config(int what, void *where)
+#elif defined COMPILE_PCRE32
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre32_config(int what, void *where)
+#endif
+{
+switch (what)
+ {
+ case PCRE_CONFIG_UTF8:
+#if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
+ *((int *)where) = 0;
+ return PCRE_ERROR_BADOPTION;
+#else
+#if defined SUPPORT_UTF
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+#endif
+
+ case PCRE_CONFIG_UTF16:
+#if defined COMPILE_PCRE8 || defined COMPILE_PCRE32
+ *((int *)where) = 0;
+ return PCRE_ERROR_BADOPTION;
+#else
+#if defined SUPPORT_UTF
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+#endif
+
+ case PCRE_CONFIG_UTF32:
+#if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
+ *((int *)where) = 0;
+ return PCRE_ERROR_BADOPTION;
+#else
+#if defined SUPPORT_UTF
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+#endif
+
+ case PCRE_CONFIG_UNICODE_PROPERTIES:
+#ifdef SUPPORT_UCP
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+
+ case PCRE_CONFIG_JIT:
+#ifdef SUPPORT_JIT
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+
+ case PCRE_CONFIG_JITTARGET:
+#ifdef SUPPORT_JIT
+ *((const char **)where) = PRIV(jit_get_target)();
+#else
+ *((const char **)where) = NULL;
+#endif
+ break;
+
+ case PCRE_CONFIG_NEWLINE:
+ *((int *)where) = NEWLINE;
+ break;
+
+ case PCRE_CONFIG_BSR:
+#ifdef BSR_ANYCRLF
+ *((int *)where) = 1;
+#else
+ *((int *)where) = 0;
+#endif
+ break;
+
+ case PCRE_CONFIG_LINK_SIZE:
+ *((int *)where) = real_link_size;
+ break;
+
+ case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
+ *((int *)where) = POSIX_MALLOC_THRESHOLD;
+ break;
+
+ case PCRE_CONFIG_PARENS_LIMIT:
+ *((unsigned long int *)where) = PARENS_NEST_LIMIT;
+ break;
+
+ case PCRE_CONFIG_MATCH_LIMIT:
+ *((unsigned long int *)where) = MATCH_LIMIT;
+ break;
+
+ case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
+ *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
+ break;
+
+ case PCRE_CONFIG_STACKRECURSE:
+#ifdef NO_RECURSE
+ *((int *)where) = 0;
+#else
+ *((int *)where) = 1;
+#endif
+ break;
+
+ default: return PCRE_ERROR_BADOPTION;
+ }
+
+return 0;
+}
+
+/* End of pcre_config.c */