1 /* This is JavaScriptCore's variant of the PCRE library. While this library 2 started out as a copy of PCRE, many of the features of PCRE have been 3 removed. This library now supports only the regular expression features 4 required by the JavaScript language specification, and has only the functions 5 needed by JavaScriptCore and the rest of WebKit. 6 7 Originally written by Philip Hazel 8 Copyright (c) 1997-2006 University of Cambridge 9 Copyright (C) 2002, 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 10 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 /* This module contains some fixed tables that are used by more than one of the 41 PCRE code modules. */ 42 43 #include "config.h" 44 #include "pcre_internal.h" 45 46 /************************************************* 47 * Tables for UTF-8 support * 48 *************************************************/ 49 50 /* These are the breakpoints for different numbers of bytes in a UTF-8 51 character. */ 52 53 const int jsc_pcre_utf8_table1[6] = 54 { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff}; 55 56 /* These are the indicator bits and the mask for the data bits to set in the 57 first byte of a character, indexed by the number of additional bytes. */ 58 59 const int jsc_pcre_utf8_table2[6] = { 0, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc}; 60 const int jsc_pcre_utf8_table3[6] = { 0xff, 0x1f, 0x0f, 0x07, 0x03, 0x01}; 61 62 /* Table of the number of extra characters, indexed by the first character 63 masked with 0x3f. The highest number for a valid UTF-8 character is in fact 64 0x3d. */ 65 66 const unsigned char jsc_pcre_utf8_table4[0x40] = { 67 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 68 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 69 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 70 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 }; 71 72 #include "chartables.c" 73
