diff options
Diffstat (limited to 'plugins/Pcre16/src/pcre16_ord2utf16.c')
-rw-r--r-- | plugins/Pcre16/src/pcre16_ord2utf16.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/plugins/Pcre16/src/pcre16_ord2utf16.c b/plugins/Pcre16/src/pcre16_ord2utf16.c new file mode 100644 index 0000000000..8e2ce5ea6c --- /dev/null +++ b/plugins/Pcre16/src/pcre16_ord2utf16.c @@ -0,0 +1,90 @@ +/************************************************* +* 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 file contains a private PCRE function that converts an ordinal +character value into a UTF16 string. */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +/* Generate code with 16 bit character support. */ +#define COMPILE_PCRE16 + +#include "pcre_internal.h" + +/************************************************* +* Convert character value to UTF-16 * +*************************************************/ + +/* This function takes an integer value in the range 0 - 0x10ffff +and encodes it as a UTF-16 character in 1 to 2 pcre_uchars. + +Arguments: + cvalue the character value + buffer pointer to buffer for result - at least 2 pcre_uchars long + +Returns: number of characters placed in the buffer +*/ + +unsigned int +PRIV(ord2utf)(pcre_uint32 cvalue, pcre_uchar *buffer) +{ +#ifdef SUPPORT_UTF + +if (cvalue <= 0xffff) + { + *buffer = (pcre_uchar)cvalue; + return 1; + } + +cvalue -= 0x10000; +*buffer++ = 0xd800 | (cvalue >> 10); +*buffer = 0xdc00 | (cvalue & 0x3ff); +return 2; + +#else /* SUPPORT_UTF */ +(void)(cvalue); /* Keep compiler happy; this function won't ever be */ +(void)(buffer); /* called when SUPPORT_UTF is not defined. */ +return 0; +#endif /* SUPPORT_UTF */ +} + +/* End of pcre16_ord2utf16.c */ |