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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtCore module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include <qregexp.h> |
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43 #include <qstring.h> |
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44 |
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45 #include "qxmlutils_p.h" |
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46 |
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47 QT_BEGIN_NAMESPACE |
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48 |
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49 /* TODO: |
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50 * - isNameChar() doesn't have to be public, it's only needed in |
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51 * qdom.cpp -- refactor fixedXmlName() to use isNCName() |
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52 * - A lot of functions can be inlined. |
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53 */ |
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54 |
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55 class QXmlCharRange |
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56 { |
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57 public: |
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58 ushort min; |
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59 ushort max; |
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60 }; |
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61 typedef const QXmlCharRange *RangeIter; |
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62 |
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63 /*! |
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64 Performs a binary search between \a begin and \a end inclusive, to check whether \a |
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65 c is contained. Remember that the QXmlCharRange instances must be in numeric order. |
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66 */ |
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67 bool QXmlUtils::rangeContains(RangeIter begin, RangeIter end, const QChar c) |
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68 { |
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69 const ushort cp(c.unicode()); |
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70 |
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71 // check the first two ranges "manually" as characters in that |
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72 // range are checked very often and we avoid the binary search below. |
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73 |
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74 if (cp <= begin->max) |
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75 return cp >= begin->min; |
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76 |
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77 ++begin; |
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78 |
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79 if (begin == end) |
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80 return false; |
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81 |
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82 if (cp <= begin->max) |
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83 return cp >= begin->min; |
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84 |
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85 while (begin != end) { |
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86 int delta = (end - begin) / 2; |
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87 RangeIter mid = begin + delta; |
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88 |
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89 if (mid->min > cp) |
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90 end = mid; |
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91 else if (mid->max < cp) |
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92 begin = mid; |
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93 else |
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94 return true; |
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95 |
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96 if (delta == 0) |
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97 break; |
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98 } |
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99 |
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100 return false; |
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101 } |
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102 |
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103 // [85] BaseChar ::= ... |
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104 |
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105 static const QXmlCharRange g_base_begin[] = |
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106 { |
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107 {0x0041, 0x005A}, {0x0061, 0x007A}, {0x00C0, 0x00D6}, {0x00D8, 0x00F6}, {0x00F8, 0x00FF}, |
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108 {0x0100, 0x0131}, {0x0134, 0x013E}, {0x0141, 0x0148}, {0x014A, 0x017E}, {0x0180, 0x01C3}, |
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109 {0x01CD, 0x01F0}, {0x01F4, 0x01F5}, {0x01FA, 0x0217}, {0x0250, 0x02A8}, {0x02BB, 0x02C1}, |
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110 {0x0386, 0x0386}, {0x0388, 0x038A}, {0x038C, 0x038C}, {0x038E, 0x03A1}, {0x03A3, 0x03CE}, |
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111 {0x03D0, 0x03D6}, {0x03DA, 0x03DA}, {0x03DC, 0x03DC}, {0x03DE, 0x03DE}, {0x03E0, 0x03E0}, |
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112 {0x03E2, 0x03F3}, {0x0401, 0x040C}, {0x040E, 0x044F}, {0x0451, 0x045C}, {0x045E, 0x0481}, |
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113 {0x0490, 0x04C4}, {0x04C7, 0x04C8}, {0x04CB, 0x04CC}, {0x04D0, 0x04EB}, {0x04EE, 0x04F5}, |
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114 {0x04F8, 0x04F9}, {0x0531, 0x0556}, {0x0559, 0x0559}, {0x0561, 0x0586}, {0x05D0, 0x05EA}, |
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115 {0x05F0, 0x05F2}, {0x0621, 0x063A}, {0x0641, 0x064A}, {0x0671, 0x06B7}, {0x06BA, 0x06BE}, |
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116 {0x06C0, 0x06CE}, {0x06D0, 0x06D3}, {0x06D5, 0x06D5}, {0x06E5, 0x06E6}, {0x0905, 0x0939}, |
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117 {0x093D, 0x093D}, {0x0958, 0x0961}, {0x0985, 0x098C}, {0x098F, 0x0990}, {0x0993, 0x09A8}, |
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118 {0x09AA, 0x09B0}, {0x09B2, 0x09B2}, {0x09B6, 0x09B9}, {0x09DC, 0x09DD}, {0x09DF, 0x09E1}, |
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119 {0x09F0, 0x09F1}, {0x0A05, 0x0A0A}, {0x0A0F, 0x0A10}, {0x0A13, 0x0A28}, {0x0A2A, 0x0A30}, |
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120 {0x0A32, 0x0A33}, {0x0A35, 0x0A36}, {0x0A38, 0x0A39}, {0x0A59, 0x0A5C}, {0x0A5E, 0x0A5E}, |
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121 {0x0A72, 0x0A74}, {0x0A85, 0x0A8B}, {0x0A8D, 0x0A8D}, {0x0A8F, 0x0A91}, {0x0A93, 0x0AA8}, |
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122 {0x0AAA, 0x0AB0}, {0x0AB2, 0x0AB3}, {0x0AB5, 0x0AB9}, {0x0ABD, 0x0ABD}, {0x0AE0, 0x0AE0}, |
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123 {0x0B05, 0x0B0C}, {0x0B0F, 0x0B10}, {0x0B13, 0x0B28}, {0x0B2A, 0x0B30}, {0x0B32, 0x0B33}, |
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124 {0x0B36, 0x0B39}, {0x0B3D, 0x0B3D}, {0x0B5C, 0x0B5D}, {0x0B5F, 0x0B61}, {0x0B85, 0x0B8A}, |
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125 {0x0B8E, 0x0B90}, {0x0B92, 0x0B95}, {0x0B99, 0x0B9A}, {0x0B9C, 0x0B9C}, {0x0B9E, 0x0B9F}, |
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126 {0x0BA3, 0x0BA4}, {0x0BA8, 0x0BAA}, {0x0BAE, 0x0BB5}, {0x0BB7, 0x0BB9}, {0x0C05, 0x0C0C}, |
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127 {0x0C0E, 0x0C10}, {0x0C12, 0x0C28}, {0x0C2A, 0x0C33}, {0x0C35, 0x0C39}, {0x0C60, 0x0C61}, |
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128 {0x0C85, 0x0C8C}, {0x0C8E, 0x0C90}, {0x0C92, 0x0CA8}, {0x0CAA, 0x0CB3}, {0x0CB5, 0x0CB9}, |
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129 {0x0CDE, 0x0CDE}, {0x0CE0, 0x0CE1}, {0x0D05, 0x0D0C}, {0x0D0E, 0x0D10}, {0x0D12, 0x0D28}, |
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130 {0x0D2A, 0x0D39}, {0x0D60, 0x0D61}, {0x0E01, 0x0E2E}, {0x0E30, 0x0E30}, {0x0E32, 0x0E33}, |
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131 {0x0E40, 0x0E45}, {0x0E81, 0x0E82}, {0x0E84, 0x0E84}, {0x0E87, 0x0E88}, {0x0E8A, 0x0E8A}, |
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132 {0x0E8D, 0x0E8D}, {0x0E94, 0x0E97}, {0x0E99, 0x0E9F}, {0x0EA1, 0x0EA3}, {0x0EA5, 0x0EA5}, |
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133 {0x0EA7, 0x0EA7}, {0x0EAA, 0x0EAB}, {0x0EAD, 0x0EAE}, {0x0EB0, 0x0EB0}, {0x0EB2, 0x0EB3}, |
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134 {0x0EBD, 0x0EBD}, {0x0EC0, 0x0EC4}, {0x0F40, 0x0F47}, {0x0F49, 0x0F69}, {0x10A0, 0x10C5}, |
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135 {0x10D0, 0x10F6}, {0x1100, 0x1100}, {0x1102, 0x1103}, {0x1105, 0x1107}, {0x1109, 0x1109}, |
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136 {0x110B, 0x110C}, {0x110E, 0x1112}, {0x113C, 0x113C}, {0x113E, 0x113E}, {0x1140, 0x1140}, |
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137 {0x114C, 0x114C}, {0x114E, 0x114E}, {0x1150, 0x1150}, {0x1154, 0x1155}, {0x1159, 0x1159}, |
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138 {0x115F, 0x1161}, {0x1163, 0x1163}, {0x1165, 0x1165}, {0x1167, 0x1167}, {0x1169, 0x1169}, |
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139 {0x116D, 0x116E}, {0x1172, 0x1173}, {0x1175, 0x1175}, {0x119E, 0x119E}, {0x11A8, 0x11A8}, |
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140 {0x11AB, 0x11AB}, {0x11AE, 0x11AF}, {0x11B7, 0x11B8}, {0x11BA, 0x11BA}, {0x11BC, 0x11C2}, |
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141 {0x11EB, 0x11EB}, {0x11F0, 0x11F0}, {0x11F9, 0x11F9}, {0x1E00, 0x1E9B}, {0x1EA0, 0x1EF9}, |
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142 {0x1F00, 0x1F15}, {0x1F18, 0x1F1D}, {0x1F20, 0x1F45}, {0x1F48, 0x1F4D}, {0x1F50, 0x1F57}, |
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143 {0x1F59, 0x1F59}, {0x1F5B, 0x1F5B}, {0x1F5D, 0x1F5D}, {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4}, |
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144 {0x1FB6, 0x1FBC}, {0x1FBE, 0x1FBE}, {0x1FC2, 0x1FC4}, {0x1FC6, 0x1FCC}, {0x1FD0, 0x1FD3}, |
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145 {0x1FD6, 0x1FDB}, {0x1FE0, 0x1FEC}, {0x1FF2, 0x1FF4}, {0x1FF6, 0x1FFC}, {0x2126, 0x2126}, |
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146 {0x212A, 0x212B}, {0x212E, 0x212E}, {0x2180, 0x2182}, {0x3041, 0x3094}, {0x30A1, 0x30FA}, |
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147 {0x3105, 0x312C}, {0xAC00, 0xD7A3} |
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148 }; |
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149 static const RangeIter g_base_end = g_base_begin + sizeof(g_base_begin) / sizeof(QXmlCharRange); |
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150 |
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151 static const QXmlCharRange g_ideographic_begin[] = |
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152 { |
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153 {0x3007, 0x3007}, {0x3021, 0x3029}, {0x4E00, 0x9FA5} |
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154 }; |
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155 static const RangeIter g_ideographic_end = g_ideographic_begin + sizeof(g_ideographic_begin) / sizeof(QXmlCharRange); |
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156 |
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157 bool QXmlUtils::isIdeographic(const QChar c) |
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158 { |
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159 return rangeContains(g_ideographic_begin, g_ideographic_end, c); |
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160 } |
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161 |
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162 static const QXmlCharRange g_combining_begin[] = |
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163 { |
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164 {0x0300, 0x0345}, {0x0360, 0x0361}, {0x0483, 0x0486}, {0x0591, 0x05A1}, {0x05A3, 0x05B9}, |
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165 {0x05BB, 0x05BD}, {0x05BF, 0x05BF}, {0x05C1, 0x05C2}, {0x05C4, 0x05C4}, {0x064B, 0x0652}, |
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166 {0x0670, 0x0670}, {0x06D6, 0x06DC}, {0x06DD, 0x06DF}, {0x06E0, 0x06E4}, {0x06E7, 0x06E8}, |
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167 {0x06EA, 0x06ED}, {0x0901, 0x0903}, {0x093C, 0x093C}, {0x093E, 0x094C}, {0x094D, 0x094D}, |
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168 {0x0951, 0x0954}, {0x0962, 0x0963}, {0x0981, 0x0983}, {0x09BC, 0x09BC}, {0x09BE, 0x09BE}, |
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169 {0x09BF, 0x09BF}, {0x09C0, 0x09C4}, {0x09C7, 0x09C8}, {0x09CB, 0x09CD}, {0x09D7, 0x09D7}, |
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170 {0x09E2, 0x09E3}, {0x0A02, 0x0A02}, {0x0A3C, 0x0A3C}, {0x0A3E, 0x0A3E}, {0x0A3F, 0x0A3F}, |
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171 {0x0A40, 0x0A42}, {0x0A47, 0x0A48}, {0x0A4B, 0x0A4D}, {0x0A70, 0x0A71}, {0x0A81, 0x0A83}, |
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172 {0x0ABC, 0x0ABC}, {0x0ABE, 0x0AC5}, {0x0AC7, 0x0AC9}, {0x0ACB, 0x0ACD}, {0x0B01, 0x0B03}, |
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173 {0x0B3C, 0x0B3C}, {0x0B3E, 0x0B43}, {0x0B47, 0x0B48}, {0x0B4B, 0x0B4D}, {0x0B56, 0x0B57}, |
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174 {0x0B82, 0x0B83}, {0x0BBE, 0x0BC2}, {0x0BC6, 0x0BC8}, {0x0BCA, 0x0BCD}, {0x0BD7, 0x0BD7}, |
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175 {0x0C01, 0x0C03}, {0x0C3E, 0x0C44}, {0x0C46, 0x0C48}, {0x0C4A, 0x0C4D}, {0x0C55, 0x0C56}, |
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176 {0x0C82, 0x0C83}, {0x0CBE, 0x0CC4}, {0x0CC6, 0x0CC8}, {0x0CCA, 0x0CCD}, {0x0CD5, 0x0CD6}, |
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177 {0x0D02, 0x0D03}, {0x0D3E, 0x0D43}, {0x0D46, 0x0D48}, {0x0D4A, 0x0D4D}, {0x0D57, 0x0D57}, |
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178 {0x0E31, 0x0E31}, {0x0E34, 0x0E3A}, {0x0E47, 0x0E4E}, {0x0EB1, 0x0EB1}, {0x0EB4, 0x0EB9}, |
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179 {0x0EBB, 0x0EBC}, {0x0EC8, 0x0ECD}, {0x0F18, 0x0F19}, {0x0F35, 0x0F35}, {0x0F37, 0x0F37}, |
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180 {0x0F39, 0x0F39}, {0x0F3E, 0x0F3E}, {0x0F3F, 0x0F3F}, {0x0F71, 0x0F84}, {0x0F86, 0x0F8B}, |
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181 {0x0F90, 0x0F95}, {0x0F97, 0x0F97}, {0x0F99, 0x0FAD}, {0x0FB1, 0x0FB7}, {0x0FB9, 0x0FB9}, |
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182 {0x20D0, 0x20DC}, {0x20E1, 0x20E1}, {0x302A, 0x302F}, {0x3099, 0x3099}, {0x309A, 0x309A} |
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183 }; |
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184 static const RangeIter g_combining_end = g_combining_begin + sizeof(g_combining_begin) / sizeof(QXmlCharRange); |
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185 |
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186 bool QXmlUtils::isCombiningChar(const QChar c) |
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187 { |
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188 return rangeContains(g_combining_begin, g_combining_end, c); |
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189 } |
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190 |
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191 // [88] Digit ::= ... |
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192 static const QXmlCharRange g_digit_begin[] = |
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193 { |
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194 {0x0030, 0x0039}, {0x0660, 0x0669}, {0x06F0, 0x06F9}, {0x0966, 0x096F}, {0x09E6, 0x09EF}, |
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195 {0x0A66, 0x0A6F}, {0x0AE6, 0x0AEF}, {0x0B66, 0x0B6F}, {0x0BE7, 0x0BEF}, {0x0C66, 0x0C6F}, |
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196 {0x0CE6, 0x0CEF}, {0x0D66, 0x0D6F}, {0x0E50, 0x0E59}, {0x0ED0, 0x0ED9}, {0x0F20, 0x0F29} |
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197 }; |
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198 static const RangeIter g_digit_end = g_digit_begin + sizeof(g_digit_begin) / sizeof(QXmlCharRange); |
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199 |
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200 bool QXmlUtils::isDigit(const QChar c) |
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201 { |
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202 return rangeContains(g_digit_begin, g_digit_end, c); |
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203 } |
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204 |
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205 // [89] Extender ::= ... |
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206 static const QXmlCharRange g_extender_begin[] = |
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207 { |
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208 {0x00B7, 0x00B7}, {0x02D0, 0x02D0}, {0x02D1, 0x02D1}, {0x0387, 0x0387}, {0x0640, 0x0640}, |
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209 {0x0E46, 0x0E46}, {0x0EC6, 0x0EC6}, {0x3005, 0x3005}, {0x3031, 0x3035}, {0x309D, 0x309E}, |
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210 {0x30FC, 0x30FE} |
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211 }; |
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212 static const RangeIter g_extender_end = g_extender_begin + sizeof(g_extender_begin) / sizeof(QXmlCharRange); |
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213 |
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214 bool QXmlUtils::isExtender(const QChar c) |
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215 { |
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216 return rangeContains(g_extender_begin, g_extender_end, c); |
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217 } |
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218 |
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219 bool QXmlUtils::isBaseChar(const QChar c) |
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220 { |
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221 return rangeContains(g_base_begin, g_base_end, c); |
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222 } |
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223 |
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224 /*! |
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225 \internal |
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226 |
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227 Determines whether \a encName is a valid instance of production [81]EncName in the XML 1.0 |
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228 specification. If it is, true is returned, otherwise false. |
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229 |
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230 \sa \l {http://www.w3.org/TR/REC-xml/#NT-EncName} |
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231 {Extensible Markup Language (XML) 1.0 (Fourth Edition), [81] EncName} |
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232 */ |
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233 bool QXmlUtils::isEncName(const QString &encName) |
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234 { |
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235 /* Right, we here have a dependency on QRegExp. Writing a manual parser to |
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236 * replace that regexp is probably a 70 lines so I prioritize this to when |
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237 * the dependency is considered alarming, or when the rest of the bugs |
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238 * are fixed. */ |
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239 const QRegExp encNameRegExp(QLatin1String("[A-Za-z][A-Za-z0-9._\\-]*")); |
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240 Q_ASSERT(encNameRegExp.isValid()); |
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241 |
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242 return encNameRegExp.exactMatch(encName); |
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243 } |
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244 |
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245 /*! |
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246 \internal |
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247 |
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248 Determines whether \a c is a valid instance of production [84]Letter in the XML 1.0 |
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249 specification. If it is, true is returned, otherwise false. |
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250 |
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251 \sa \l {http://www.w3.org/TR/REC-xml/#NT-Letter} |
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252 {Extensible Markup Language (XML) 1.0 (Fourth Edition), [84] Letter} |
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253 */ |
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254 bool QXmlUtils::isLetter(const QChar c) |
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255 { |
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256 return isBaseChar(c) || isIdeographic(c); |
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257 } |
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258 |
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259 /*! |
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260 \internal |
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261 |
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262 Determines whether \a c is a valid instance of production [2]Char in the XML 1.0 |
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263 specification. If it is, true is returned, otherwise false. |
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264 |
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265 \sa \l {http://www.w3.org/TR/REC-xml/#NT-Char} |
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266 {Extensible Markup Language (XML) 1.0 (Fourth Edition), [2] Char} |
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267 */ |
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268 bool QXmlUtils::isChar(const QChar c) |
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269 { |
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270 return (c.unicode() >= 0x0020 && c.unicode() <= 0xD7FF) |
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271 || c.unicode() == 0x0009 |
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272 || c.unicode() == 0x000A |
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273 || c.unicode() == 0x000D |
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274 || (c.unicode() >= 0xE000 && c.unicode() <= 0xFFFD); |
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275 } |
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276 |
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277 /*! |
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278 \internal |
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279 |
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280 Determines whether \a c is a valid instance of |
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281 production [4]NameChar in the XML 1.0 specification. If it |
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282 is, true is returned, otherwise false. |
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283 |
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284 \sa \l {http://www.w3.org/TR/REC-xml/#NT-NameChar} |
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285 {Extensible Markup Language (XML) 1.0 (Fourth Edition), [4] NameChar} |
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286 */ |
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287 bool QXmlUtils::isNameChar(const QChar c) |
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288 { |
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289 return isBaseChar(c) |
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290 || isDigit(c) |
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291 || c.unicode() == '.' |
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292 || c.unicode() == '-' |
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293 || c.unicode() == '_' |
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294 || c.unicode() == ':' |
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295 || isCombiningChar(c) |
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296 || isIdeographic(c) |
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297 || isExtender(c); |
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298 } |
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299 |
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300 /*! |
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301 \internal |
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302 |
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303 Determines whether \a c is a valid instance of |
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304 production [12] PubidLiteral in the XML 1.0 specification. If it |
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305 is, true is returned, otherwise false. |
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306 |
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307 \sa \l {http://www.w3.org/TR/REC-xml/#NT-PubidLiteral} |
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308 {Extensible Markup Language (XML) 1.0 (Fourth Edition), [12] PubidLiteral} |
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309 */ |
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310 bool QXmlUtils::isPublicID(const QString &candidate) |
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311 { |
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312 const int len = candidate.length(); |
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313 |
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314 for(int i = 0; i < len; ++i) |
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315 { |
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316 const ushort cp = candidate.at(i).unicode(); |
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317 |
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318 if ((cp >= 'a' && cp <= 'z') |
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319 || (cp >= 'A' && cp <= 'Z') |
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320 || (cp >= '0' && cp <= '9')) |
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321 { |
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322 continue; |
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323 } |
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324 |
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325 switch (cp) |
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326 { |
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327 /* Fallthrough all these. */ |
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328 case 0x20: |
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329 case 0x0D: |
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330 case 0x0A: |
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331 case '-': |
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332 case '\'': |
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333 case '(': |
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334 case ')': |
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335 case '+': |
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336 case ',': |
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337 case '.': |
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338 case '/': |
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339 case ':': |
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340 case '=': |
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341 case '?': |
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342 case ';': |
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343 case '!': |
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344 case '*': |
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345 case '#': |
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346 case '@': |
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347 case '$': |
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348 case '_': |
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349 case '%': |
|
350 continue; |
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351 default: |
|
352 return false; |
|
353 } |
|
354 } |
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355 |
|
356 return true; |
|
357 } |
|
358 |
|
359 /*! |
|
360 \internal |
|
361 |
|
362 Determines whether \a c is a valid instance of |
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363 production [4]NCName in the XML 1.0 Namespaces specification. If it |
|
364 is, true is returned, otherwise false. |
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365 |
|
366 \sa \l {http://www.w3.org/TR/REC-xml-names/#NT-NCName} |
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367 {W3CNamespaces in XML 1.0 (Second Edition), [4] NCName} |
|
368 */ |
|
369 bool QXmlUtils::isNCName(const QStringRef &ncName) |
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370 { |
|
371 if(ncName.isEmpty()) |
|
372 return false; |
|
373 |
|
374 const QChar first(ncName.at(0)); |
|
375 |
|
376 if(!QXmlUtils::isLetter(first) && first.unicode() != '_' && first.unicode() != ':') |
|
377 return false; |
|
378 |
|
379 const int len = ncName.size(); |
|
380 for(int i = 0; i < len; ++i) |
|
381 { |
|
382 const QChar &at = ncName.at(i); |
|
383 if(!QXmlUtils::isNameChar(at) || at == QLatin1Char(':')) |
|
384 return false; |
|
385 } |
|
386 |
|
387 return true; |
|
388 } |
|
389 |
|
390 QT_END_NAMESPACE |