parser/html/nsHtml5NamedCharacters.cpp

   1 /*
   2  * Copyright (c) 2008-2010 Mozilla Foundation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20  * DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #define nsHtml5NamedCharacters_cpp_
  24 #include "prtypes.h"
  25 #include "jArray.h"
  26 #include "nscore.h"
  27 #include "nsDebug.h"
  28 #include "prlog.h"
  29 #include "nsMemory.h"
  30
  31 #include "nsHtml5NamedCharacters.h"
  32
  33 jArray<jArray<PRInt8,PRInt32>,PRInt32> nsHtml5NamedCharacters::NAMES;
  34
  35 const PRUnichar nsHtml5NamedCharacters::VALUES[][2] = {
  36 #define NAMED_CHARACTER_REFERENCE(N, CHARS, LEN, FLAG, VALUE) \
  37 { VALUE },
  38 #include "nsHtml5NamedCharactersInclude.h"
  39 #undef NAMED_CHARACTER_REFERENCE
  40 {0, 0} };
  41
  42 PRUnichar** nsHtml5NamedCharacters::WINDOWS_1252;
  43 static PRUnichar const WINDOWS_1252_DATA[] = {
  44   0x20AC,
  45   0x0081,
  46   0x201A,
  47   0x0192,
  48   0x201E,
  49   0x2026,
  50   0x2020,
  51   0x2021,
  52   0x02C6,
  53   0x2030,
  54   0x0160,
  55   0x2039,
  56   0x0152,
  57   0x008D,
  58   0x017D,
  59   0x008F,
  60   0x0090,
  61   0x2018,
  62   0x2019,
  63   0x201C,
  64   0x201D,
  65   0x2022,
  66   0x2013,
  67   0x2014,
  68   0x02DC,
  69   0x2122,
  70   0x0161,
  71   0x203A,
  72   0x0153,
  73   0x009D,
  74   0x017E,
  75   0x0178
  76 };
  77
  78 /**
  79  * To avoid having lots of pointers in the |charData| array, below,
  80  * which would cause us to have to do lots of relocations at library
  81  * load time, store all the string data for the names in one big array.
  82  * Then use tricks with enums to help us build an array that contains
  83  * the positions of each within the big arrays.
  84  */
  85
  86 static const PRInt8 ALL_NAMES[] = {
  87 #define NAMED_CHARACTER_REFERENCE(N, CHARS, LEN, FLAG, VALUE) \
  88 CHARS ,
  89 #include "nsHtml5NamedCharactersInclude.h"
  90 #undef NAMED_CHARACTER_REFERENCE
  91 };
  92
  93 enum NamePositions {
  94   DUMMY_INITIAL_NAME_POSITION = 0,
  95 /* enums don't take up space, so generate _START and _END */
  96 #define NAMED_CHARACTER_REFERENCE(N, CHARS, LEN, FLAG, VALUE) \
  97 NAME_##N##_DUMMY, /* automatically one higher than previous */ \
  98 NAME_##N##_START = NAME_##N##_DUMMY - 1, \
  99 NAME_##N##_END = NAME_##N##_START + LEN + FLAG,
 100 #include "nsHtml5NamedCharactersInclude.h"
 101 #undef NAMED_CHARACTER_REFERENCE
 102   DUMMY_FINAL_NAME_VALUE
 103 };
 104
 105 #define NAMED_CHARACTERS_COUNT 2138
 106
 107 /* check that the start positions will fit in 16 bits */
 108 PR_STATIC_ASSERT(NS_ARRAY_LENGTH(ALL_NAMES) < 0x10000);
 109
 110 struct NamedCharacterData {
 111   PRUint16 nameStart;
 112   PRUint16 nameLen;
 113 #ifdef DEBUG
 114   PRInt32 n;
 115 #endif
 116 };
 117
 118 static const NamedCharacterData charData[NAMED_CHARACTERS_COUNT] = {
 119 #ifdef DEBUG
 120   #define NAMED_CHARACTER_REFERENCE(N, CHARS, LEN, FLAG, VALUE) \
 121 { NAME_##N##_START, LEN, N },
 122 #else
 123   #define NAMED_CHARACTER_REFERENCE(N, CHARS, LEN, FLAG, VALUE) \
 124 { NAME_##N##_START, LEN, },
 125 #endif
 126 #include "nsHtml5NamedCharactersInclude.h"
 127 #undef NAMED_CHARACTER_REFERENCE
 128 };
 129
 130 void
 131 nsHtml5NamedCharacters::initializeStatics()
 132 {
 133   NAMES = jArray<jArray<PRInt8,PRInt32>,PRInt32>(NAMED_CHARACTERS_COUNT);
 134   PRInt8* allNames = const_cast<PRInt8*>(ALL_NAMES);
 135   for (PRInt32 i = 0; i < NAMED_CHARACTERS_COUNT; ++i) {
 136     const NamedCharacterData &data = charData[i];
 137     NS_ABORT_IF_FALSE(data.n == i,
 138                       "index error in nsHtml5NamedCharactersInclude.h");
 139     NAMES[i] = jArray<PRInt8,PRInt32>(allNames + data.nameStart, data.nameLen);
 140   }
 141
 142   WINDOWS_1252 = new PRUnichar*[32];
 143   for (PRInt32 i = 0; i < 32; ++i) {
 144     WINDOWS_1252[i] = (PRUnichar*)&(WINDOWS_1252_DATA[i]);
 145   }
 146 }
 147
 148 void
 149 nsHtml5NamedCharacters::releaseStatics()
 150 {
 151   NAMES.release();
 152   delete[] WINDOWS_1252;
 153 }