1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <qstring.h>
#include "qxmlutils_p.h"
#include <private/qtools_p.h>
QT_BEGIN_NAMESPACE
using namespace QtMiscUtils;
/* TODO:
* - isNameChar() doesn't have to be public, it's only needed in
* qdom.cpp -- refactor fixedXmlName() to use isNCName()
* - A lot of functions can be inlined.
*/
class QXmlCharRange
{
public:
ushort min;
ushort max;
};
typedef const QXmlCharRange *RangeIter;
/*!
Performs a binary search between \a begin and \a end inclusive, to check whether \a
c is contained. Remember that the QXmlCharRange instances must be in numeric order.
*/
bool QXmlUtils::rangeContains(RangeIter begin, RangeIter end, const QChar c)
{
const ushort cp(c.unicode());
// check the first two ranges "manually" as characters in that
// range are checked very often and we avoid the binary search below.
if (cp <= begin->max)
return cp >= begin->min;
++begin;
if (begin == end)
return false;
if (cp <= begin->max)
return cp >= begin->min;
while (begin != end) {
qptrdiff delta = (end - begin) / 2;
RangeIter mid = begin + delta;
if (mid->min > cp)
end = mid;
else if (mid->max < cp)
begin = mid;
else
return true;
if (delta == 0)
break;
}
return false;
}
// [85] BaseChar ::= ...
static const QXmlCharRange g_base_begin[] =
{
{0x0041, 0x005A}, {0x0061, 0x007A}, {0x00C0, 0x00D6}, {0x00D8, 0x00F6}, {0x00F8, 0x00FF},
{0x0100, 0x0131}, {0x0134, 0x013E}, {0x0141, 0x0148}, {0x014A, 0x017E}, {0x0180, 0x01C3},
{0x01CD, 0x01F0}, {0x01F4, 0x01F5}, {0x01FA, 0x0217}, {0x0250, 0x02A8}, {0x02BB, 0x02C1},
{0x0386, 0x0386}, {0x0388, 0x038A}, {0x038C, 0x038C}, {0x038E, 0x03A1}, {0x03A3, 0x03CE},
{0x03D0, 0x03D6}, {0x03DA, 0x03DA}, {0x03DC, 0x03DC}, {0x03DE, 0x03DE}, {0x03E0, 0x03E0},
{0x03E2, 0x03F3}, {0x0401, 0x040C}, {0x040E, 0x044F}, {0x0451, 0x045C}, {0x045E, 0x0481},
{0x0490, 0x04C4}, {0x04C7, 0x04C8}, {0x04CB, 0x04CC}, {0x04D0, 0x04EB}, {0x04EE, 0x04F5},
{0x04F8, 0x04F9}, {0x0531, 0x0556}, {0x0559, 0x0559}, {0x0561, 0x0586}, {0x05D0, 0x05EA},
{0x05F0, 0x05F2}, {0x0621, 0x063A}, {0x0641, 0x064A}, {0x0671, 0x06B7}, {0x06BA, 0x06BE},
{0x06C0, 0x06CE}, {0x06D0, 0x06D3}, {0x06D5, 0x06D5}, {0x06E5, 0x06E6}, {0x0905, 0x0939},
{0x093D, 0x093D}, {0x0958, 0x0961}, {0x0985, 0x098C}, {0x098F, 0x0990}, {0x0993, 0x09A8},
{0x09AA, 0x09B0}, {0x09B2, 0x09B2}, {0x09B6, 0x09B9}, {0x09DC, 0x09DD}, {0x09DF, 0x09E1},
{0x09F0, 0x09F1}, {0x0A05, 0x0A0A}, {0x0A0F, 0x0A10}, {0x0A13, 0x0A28}, {0x0A2A, 0x0A30},
{0x0A32, 0x0A33}, {0x0A35, 0x0A36}, {0x0A38, 0x0A39}, {0x0A59, 0x0A5C}, {0x0A5E, 0x0A5E},
{0x0A72, 0x0A74}, {0x0A85, 0x0A8B}, {0x0A8D, 0x0A8D}, {0x0A8F, 0x0A91}, {0x0A93, 0x0AA8},
{0x0AAA, 0x0AB0}, {0x0AB2, 0x0AB3}, {0x0AB5, 0x0AB9}, {0x0ABD, 0x0ABD}, {0x0AE0, 0x0AE0},
{0x0B05, 0x0B0C}, {0x0B0F, 0x0B10}, {0x0B13, 0x0B28}, {0x0B2A, 0x0B30}, {0x0B32, 0x0B33},
{0x0B36, 0x0B39}, {0x0B3D, 0x0B3D}, {0x0B5C, 0x0B5D}, {0x0B5F, 0x0B61}, {0x0B85, 0x0B8A},
{0x0B8E, 0x0B90}, {0x0B92, 0x0B95}, {0x0B99, 0x0B9A}, {0x0B9C, 0x0B9C}, {0x0B9E, 0x0B9F},
{0x0BA3, 0x0BA4}, {0x0BA8, 0x0BAA}, {0x0BAE, 0x0BB5}, {0x0BB7, 0x0BB9}, {0x0C05, 0x0C0C},
{0x0C0E, 0x0C10}, {0x0C12, 0x0C28}, {0x0C2A, 0x0C33}, {0x0C35, 0x0C39}, {0x0C60, 0x0C61},
{0x0C85, 0x0C8C}, {0x0C8E, 0x0C90}, {0x0C92, 0x0CA8}, {0x0CAA, 0x0CB3}, {0x0CB5, 0x0CB9},
{0x0CDE, 0x0CDE}, {0x0CE0, 0x0CE1}, {0x0D05, 0x0D0C}, {0x0D0E, 0x0D10}, {0x0D12, 0x0D28},
{0x0D2A, 0x0D39}, {0x0D60, 0x0D61}, {0x0E01, 0x0E2E}, {0x0E30, 0x0E30}, {0x0E32, 0x0E33},
{0x0E40, 0x0E45}, {0x0E81, 0x0E82}, {0x0E84, 0x0E84}, {0x0E87, 0x0E88}, {0x0E8A, 0x0E8A},
{0x0E8D, 0x0E8D}, {0x0E94, 0x0E97}, {0x0E99, 0x0E9F}, {0x0EA1, 0x0EA3}, {0x0EA5, 0x0EA5},
{0x0EA7, 0x0EA7}, {0x0EAA, 0x0EAB}, {0x0EAD, 0x0EAE}, {0x0EB0, 0x0EB0}, {0x0EB2, 0x0EB3},
{0x0EBD, 0x0EBD}, {0x0EC0, 0x0EC4}, {0x0F40, 0x0F47}, {0x0F49, 0x0F69}, {0x10A0, 0x10C5},
{0x10D0, 0x10F6}, {0x1100, 0x1100}, {0x1102, 0x1103}, {0x1105, 0x1107}, {0x1109, 0x1109},
{0x110B, 0x110C}, {0x110E, 0x1112}, {0x113C, 0x113C}, {0x113E, 0x113E}, {0x1140, 0x1140},
{0x114C, 0x114C}, {0x114E, 0x114E}, {0x1150, 0x1150}, {0x1154, 0x1155}, {0x1159, 0x1159},
{0x115F, 0x1161}, {0x1163, 0x1163}, {0x1165, 0x1165}, {0x1167, 0x1167}, {0x1169, 0x1169},
{0x116D, 0x116E}, {0x1172, 0x1173}, {0x1175, 0x1175}, {0x119E, 0x119E}, {0x11A8, 0x11A8},
{0x11AB, 0x11AB}, {0x11AE, 0x11AF}, {0x11B7, 0x11B8}, {0x11BA, 0x11BA}, {0x11BC, 0x11C2},
{0x11EB, 0x11EB}, {0x11F0, 0x11F0}, {0x11F9, 0x11F9}, {0x1E00, 0x1E9B}, {0x1EA0, 0x1EF9},
{0x1F00, 0x1F15}, {0x1F18, 0x1F1D}, {0x1F20, 0x1F45}, {0x1F48, 0x1F4D}, {0x1F50, 0x1F57},
{0x1F59, 0x1F59}, {0x1F5B, 0x1F5B}, {0x1F5D, 0x1F5D}, {0x1F5F, 0x1F7D}, {0x1F80, 0x1FB4},
{0x1FB6, 0x1FBC}, {0x1FBE, 0x1FBE}, {0x1FC2, 0x1FC4}, {0x1FC6, 0x1FCC}, {0x1FD0, 0x1FD3},
{0x1FD6, 0x1FDB}, {0x1FE0, 0x1FEC}, {0x1FF2, 0x1FF4}, {0x1FF6, 0x1FFC}, {0x2126, 0x2126},
{0x212A, 0x212B}, {0x212E, 0x212E}, {0x2180, 0x2182}, {0x3041, 0x3094}, {0x30A1, 0x30FA},
{0x3105, 0x312C}, {0xAC00, 0xD7A3}
};
static const RangeIter g_base_end = g_base_begin + sizeof(g_base_begin) / sizeof(QXmlCharRange);
static const QXmlCharRange g_ideographic_begin[] =
{
{0x3007, 0x3007}, {0x3021, 0x3029}, {0x4E00, 0x9FA5}
};
static const RangeIter g_ideographic_end = g_ideographic_begin + sizeof(g_ideographic_begin) / sizeof(QXmlCharRange);
bool QXmlUtils::isIdeographic(const QChar c)
{
return rangeContains(g_ideographic_begin, g_ideographic_end, c);
}
static const QXmlCharRange g_combining_begin[] =
{
{0x0300, 0x0345}, {0x0360, 0x0361}, {0x0483, 0x0486}, {0x0591, 0x05A1}, {0x05A3, 0x05B9},
{0x05BB, 0x05BD}, {0x05BF, 0x05BF}, {0x05C1, 0x05C2}, {0x05C4, 0x05C4}, {0x064B, 0x0652},
{0x0670, 0x0670}, {0x06D6, 0x06DC}, {0x06DD, 0x06DF}, {0x06E0, 0x06E4}, {0x06E7, 0x06E8},
{0x06EA, 0x06ED}, {0x0901, 0x0903}, {0x093C, 0x093C}, {0x093E, 0x094C}, {0x094D, 0x094D},
{0x0951, 0x0954}, {0x0962, 0x0963}, {0x0981, 0x0983}, {0x09BC, 0x09BC}, {0x09BE, 0x09BE},
{0x09BF, 0x09BF}, {0x09C0, 0x09C4}, {0x09C7, 0x09C8}, {0x09CB, 0x09CD}, {0x09D7, 0x09D7},
{0x09E2, 0x09E3}, {0x0A02, 0x0A02}, {0x0A3C, 0x0A3C}, {0x0A3E, 0x0A3E}, {0x0A3F, 0x0A3F},
{0x0A40, 0x0A42}, {0x0A47, 0x0A48}, {0x0A4B, 0x0A4D}, {0x0A70, 0x0A71}, {0x0A81, 0x0A83},
{0x0ABC, 0x0ABC}, {0x0ABE, 0x0AC5}, {0x0AC7, 0x0AC9}, {0x0ACB, 0x0ACD}, {0x0B01, 0x0B03},
{0x0B3C, 0x0B3C}, {0x0B3E, 0x0B43}, {0x0B47, 0x0B48}, {0x0B4B, 0x0B4D}, {0x0B56, 0x0B57},
{0x0B82, 0x0B83}, {0x0BBE, 0x0BC2}, {0x0BC6, 0x0BC8}, {0x0BCA, 0x0BCD}, {0x0BD7, 0x0BD7},
{0x0C01, 0x0C03}, {0x0C3E, 0x0C44}, {0x0C46, 0x0C48}, {0x0C4A, 0x0C4D}, {0x0C55, 0x0C56},
{0x0C82, 0x0C83}, {0x0CBE, 0x0CC4}, {0x0CC6, 0x0CC8}, {0x0CCA, 0x0CCD}, {0x0CD5, 0x0CD6},
{0x0D02, 0x0D03}, {0x0D3E, 0x0D43}, {0x0D46, 0x0D48}, {0x0D4A, 0x0D4D}, {0x0D57, 0x0D57},
{0x0E31, 0x0E31}, {0x0E34, 0x0E3A}, {0x0E47, 0x0E4E}, {0x0EB1, 0x0EB1}, {0x0EB4, 0x0EB9},
{0x0EBB, 0x0EBC}, {0x0EC8, 0x0ECD}, {0x0F18, 0x0F19}, {0x0F35, 0x0F35}, {0x0F37, 0x0F37},
{0x0F39, 0x0F39}, {0x0F3E, 0x0F3E}, {0x0F3F, 0x0F3F}, {0x0F71, 0x0F84}, {0x0F86, 0x0F8B},
{0x0F90, 0x0F95}, {0x0F97, 0x0F97}, {0x0F99, 0x0FAD}, {0x0FB1, 0x0FB7}, {0x0FB9, 0x0FB9},
{0x20D0, 0x20DC}, {0x20E1, 0x20E1}, {0x302A, 0x302F}, {0x3099, 0x3099}, {0x309A, 0x309A}
};
static const RangeIter g_combining_end = g_combining_begin + sizeof(g_combining_begin) / sizeof(QXmlCharRange);
bool QXmlUtils::isCombiningChar(const QChar c)
{
return rangeContains(g_combining_begin, g_combining_end, c);
}
// [88] Digit ::= ...
static const QXmlCharRange g_digit_begin[] =
{
{0x0030, 0x0039}, {0x0660, 0x0669}, {0x06F0, 0x06F9}, {0x0966, 0x096F}, {0x09E6, 0x09EF},
{0x0A66, 0x0A6F}, {0x0AE6, 0x0AEF}, {0x0B66, 0x0B6F}, {0x0BE7, 0x0BEF}, {0x0C66, 0x0C6F},
{0x0CE6, 0x0CEF}, {0x0D66, 0x0D6F}, {0x0E50, 0x0E59}, {0x0ED0, 0x0ED9}, {0x0F20, 0x0F29}
};
static const RangeIter g_digit_end = g_digit_begin + sizeof(g_digit_begin) / sizeof(QXmlCharRange);
bool QXmlUtils::isDigit(const QChar c)
{
return rangeContains(g_digit_begin, g_digit_end, c);
}
// [89] Extender ::= ...
static const QXmlCharRange g_extender_begin[] =
{
{0x00B7, 0x00B7}, {0x02D0, 0x02D0}, {0x02D1, 0x02D1}, {0x0387, 0x0387}, {0x0640, 0x0640},
{0x0E46, 0x0E46}, {0x0EC6, 0x0EC6}, {0x3005, 0x3005}, {0x3031, 0x3035}, {0x309D, 0x309E},
{0x30FC, 0x30FE}
};
static const RangeIter g_extender_end = g_extender_begin + sizeof(g_extender_begin) / sizeof(QXmlCharRange);
bool QXmlUtils::isExtender(const QChar c)
{
return rangeContains(g_extender_begin, g_extender_end, c);
}
bool QXmlUtils::isBaseChar(const QChar c)
{
return rangeContains(g_base_begin, g_base_end, c);
}
/*!
\internal
Determines whether \a encName is a valid instance of production [81]EncName in the XML 1.0
specification. If it is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml/#NT-EncName},
{Extensible Markup Language (XML) 1.0 (Fourth Edition), [81] EncName}
*/
bool QXmlUtils::isEncName(QStringView encName)
{
// Valid encoding names are given by "[A-Za-z][A-Za-z0-9._\\-]*"
if (encName.isEmpty())
return false;
const auto first = encName.front().unicode();
if (!(isAsciiLower(first) || isAsciiUpper(first)))
return false;
for (QChar ch : encName.mid(1)) {
const auto cp = ch.unicode();
if (isAsciiLetterOrNumber(cp) || cp == '.' || cp == '_' || cp == '-')
continue;
return false;
}
return true;
}
/*!
\internal
Determines whether \a c is a valid instance of production [84]Letter in the XML 1.0
specification. If it is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml/#NT-Letter},
{Extensible Markup Language (XML) 1.0 (Fourth Edition), [84] Letter}
*/
bool QXmlUtils::isLetter(const QChar c)
{
return isBaseChar(c) || isIdeographic(c);
}
/*!
\internal
Determines whether \a c is a valid instance of production [2]Char in the XML 1.0
specification. If it is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml/#NT-Char},
{Extensible Markup Language (XML) 1.0 (Fourth Edition), [2] Char}
*/
bool QXmlUtils::isChar(const char32_t c)
{
// The valid range is defined by https://www.w3.org/TR/REC-xml/#NT-Char as following:
// Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
return (c >= 0x0020 && c <= 0xD7FF)
|| c == 0x0009
|| c == 0x000A
|| c == 0x000D
|| (c >= 0xE000 && c <= 0xFFFD)
|| (c >= 0x10000 && c <= 0x10FFFF);
}
/*!
\internal
Determines whether \a c is a valid instance of
production [4]NameChar in the XML 1.0 specification. If it
is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml/#NT-NameChar},
{Extensible Markup Language (XML) 1.0 (Fourth Edition), [4] NameChar}
*/
bool QXmlUtils::isNameChar(const QChar c)
{
return isBaseChar(c)
|| isDigit(c)
|| c.unicode() == '.'
|| c.unicode() == '-'
|| c.unicode() == '_'
|| c.unicode() == ':'
|| isCombiningChar(c)
|| isIdeographic(c)
|| isExtender(c);
}
/*!
\internal
Determines whether \a c is a valid instance of
production [12] PubidLiteral in the XML 1.0 specification. If it
is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml/#NT-PubidLiteral},
{Extensible Markup Language (XML) 1.0 (Fourth Edition), [12] PubidLiteral}
*/
bool QXmlUtils::isPublicID(QStringView candidate)
{
for (QChar ch : candidate) {
const ushort cp = ch.unicode();
if (isAsciiLetterOrNumber(cp))
continue;
switch (cp)
{
/* Fallthrough all these. */
case 0x20:
case 0x0D:
case 0x0A:
case '-':
case '\'':
case '(':
case ')':
case '+':
case ',':
case '.':
case '/':
case ':':
case '=':
case '?':
case ';':
case '!':
case '*':
case '#':
case '@':
case '$':
case '_':
case '%':
continue;
default:
return false;
}
}
return true;
}
/*!
\internal
Determines whether \a c is a valid instance of
production [4]NCName in the XML 1.0 Namespaces specification. If it
is, true is returned, otherwise false.
\sa {http://www.w3.org/TR/REC-xml-names/#NT-NCName},
{W3CNamespaces in XML 1.0 (Second Edition), [4] NCName}
*/
bool QXmlUtils::isNCName(QStringView ncName)
{
if (ncName.isEmpty())
return false;
const QChar first(ncName.at(0));
if (!QXmlUtils::isLetter(first) && first.unicode() != '_' && first.unicode() != ':')
return false;
for (QChar at : ncName) {
if (!QXmlUtils::isNameChar(at) || at == u':')
return false;
}
return true;
}
QT_END_NAMESPACE
|
