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1 /* This is JavaScriptCore's variant of the PCRE library. While this library |
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2 started out as a copy of PCRE, many of the features of PCRE have been |
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3 removed. This library now supports only the regular expression features |
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4 required by the JavaScript language specification, and has only the functions |
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5 needed by JavaScriptCore and the rest of WebKit. |
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6 |
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7 Originally written by Philip Hazel |
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8 Copyright (c) 1997-2006 University of Cambridge |
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9 Copyright (C) 2002, 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
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10 |
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11 ----------------------------------------------------------------------------- |
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12 Redistribution and use in source and binary forms, with or without |
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13 modification, are permitted provided that the following conditions are met: |
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14 |
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15 * Redistributions of source code must retain the above copyright notice, |
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16 this list of conditions and the following disclaimer. |
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17 |
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18 * Redistributions in binary form must reproduce the above copyright |
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19 notice, this list of conditions and the following disclaimer in the |
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20 documentation and/or other materials provided with the distribution. |
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21 |
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22 * Neither the name of the University of Cambridge nor the names of its |
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23 contributors may be used to endorse or promote products derived from |
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24 this software without specific prior written permission. |
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25 |
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26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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27 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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28 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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29 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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30 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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31 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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32 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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33 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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34 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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35 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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36 POSSIBILITY OF SUCH DAMAGE. |
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37 ----------------------------------------------------------------------------- |
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38 */ |
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39 |
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40 /* This module contains some fixed tables that are used by more than one of the |
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41 PCRE code modules. */ |
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42 |
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43 #include "config.h" |
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44 #include "pcre_internal.h" |
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45 |
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46 /************************************************* |
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47 * Tables for UTF-8 support * |
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48 *************************************************/ |
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49 |
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50 /* These are the breakpoints for different numbers of bytes in a UTF-8 |
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51 character. */ |
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52 |
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53 const int jsc_pcre_utf8_table1[6] = |
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54 { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff}; |
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55 |
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56 /* These are the indicator bits and the mask for the data bits to set in the |
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57 first byte of a character, indexed by the number of additional bytes. */ |
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58 |
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59 const int jsc_pcre_utf8_table2[6] = { 0, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc}; |
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60 const int jsc_pcre_utf8_table3[6] = { 0xff, 0x1f, 0x0f, 0x07, 0x03, 0x01}; |
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61 |
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62 /* Table of the number of extra characters, indexed by the first character |
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63 masked with 0x3f. The highest number for a valid UTF-8 character is in fact |
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64 0x3d. */ |
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65 |
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66 const unsigned char jsc_pcre_utf8_table4[0x40] = { |
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67 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
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68 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
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69 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
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70 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 }; |
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71 |
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72 #include "chartables.c" |