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/************************************************* |
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* Perl-Compatible Regular Expressions * |
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*************************************************/ |
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/* PCRE is a library of functions to support regular expressions whose syntax |
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and semantics are as close as possible to those of the Perl 5 language. |
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Written by Philip Hazel |
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Copyright (c) 1997-2012 University of Cambridge |
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----------------------------------------------------------------------------- |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the University of Cambridge nor the names of its |
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contributors may be used to endorse or promote products derived from |
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this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. |
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----------------------------------------------------------------------------- |
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*/ |
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/* This file contains a private PCRE function that converts an ordinal |
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character value into a UTF8 string. */ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#define COMPILE_PCRE8 |
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#include "pcre_internal.h" |
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/************************************************* |
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* Convert character value to UTF-8 * |
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*************************************************/ |
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/* This function takes an integer value in the range 0 - 0x10ffff |
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and encodes it as a UTF-8 character in 1 to 4 pcre_uchars. |
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Arguments: |
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cvalue the character value |
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buffer pointer to buffer for result - at least 6 pcre_uchars long |
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Returns: number of characters placed in the buffer |
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*/ |
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unsigned |
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int |
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0
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PRIV(ord2utf)(pcre_uint32 cvalue, pcre_uchar *buffer) |
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{ |
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#ifdef SUPPORT_UTF |
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72
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register int i, j; |
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74
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for (i = 0; i < PRIV(utf8_table1_size); i++) |
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if ((int)cvalue <= PRIV(utf8_table1)[i]) break; |
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buffer += i; |
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for (j = i; j > 0; j--) |
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{ |
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*buffer-- = 0x80 | (cvalue & 0x3f); |
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cvalue >>= 6; |
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} |
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*buffer = PRIV(utf8_table2)[i] | cvalue; |
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return i + 1; |
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85
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#else |
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87
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(void)(cvalue); /* Keep compiler happy; this function won't ever be */ |
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(void)(buffer); /* called when SUPPORT_UTF is not defined. */ |
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0
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return 0; |
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91
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#endif |
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} |
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94
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/* End of pcre_ord2utf8.c */ |