source: trunk/qmake/generators/xmloutput.cpp@ 708

Last change on this file since 708 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 9.7 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
6**
7** This file is part of the qmake application of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at qt-info@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "xmloutput.h"
43
44QT_BEGIN_NAMESPACE
45
46XmlOutput::XmlOutput(QTextStream &file, ConverstionType type)
47 : xmlFile(file), indent("\t"), currentLevel(0), currentState(Bare), format(NewLine),
48 conversion(type)
49{
50 tagStack.clear();
51}
52
53XmlOutput::~XmlOutput()
54{
55 closeAll();
56}
57
58// Settings ------------------------------------------------------------------
59void XmlOutput::setIndentString(const QString &indentString)
60{
61 indent = indentString;
62}
63
64QString XmlOutput::indentString()
65{
66 return indent;
67}
68
69void XmlOutput::setIndentLevel(int level)
70{
71 currentLevel = level;
72}
73
74int XmlOutput::indentLevel()
75{
76 return currentLevel;
77}
78
79void XmlOutput::setState(XMLState state)
80{
81 currentState = state;
82}
83
84XmlOutput::XMLState XmlOutput::state()
85{
86 return currentState;
87}
88
89void XmlOutput::updateIndent()
90{
91 currentIndent.clear();
92 for (int i = 0; i < currentLevel; ++i)
93 currentIndent.append(indent);
94}
95
96void XmlOutput::increaseIndent()
97{
98 ++currentLevel;
99 updateIndent();
100}
101
102void XmlOutput::decreaseIndent()
103{
104 if (currentLevel)
105 --currentLevel;
106 updateIndent();
107 if (!currentLevel)
108 currentState = Bare;
109}
110
111QString XmlOutput::doConversion(const QString &text)
112{
113 if (!text.count())
114 return QString();
115 else if (conversion == NoConversion)
116 return text;
117
118 QString output;
119 if (conversion == XMLConversion) {
120
121 // this is a way to escape characters that shouldn't be converted
122 for (int i=0; i<text.count(); ++i) {
123 if (text.at(i) == QLatin1Char('&')) {
124 if ( (i + 7) < text.count() &&
125 text.at(i + 1) == QLatin1Char('#') &&
126 text.at(i + 2) == QLatin1Char('x') &&
127 text.at(i + 7) == QLatin1Char(';') ) {
128 output += text.at(i);
129 } else {
130 output += QLatin1String("&amp;");
131 }
132 } else {
133 QChar c = text.at(i);
134 if (c.unicode() < 0x20) {
135 output += QString("&#x%1;").arg(c.unicode(), 2, 16, QLatin1Char('0'));
136 } else {
137 output += text.at(i);
138 }
139 }
140 }
141 } else {
142 output = text;
143 }
144
145 if (conversion == XMLConversion) {
146 output.replace('\"', "&quot;");
147 output.replace('\'', "&apos;");
148 } else if (conversion == EscapeConversion) {
149 output.replace('\"', "\\\"");
150 output.replace('\'', "\\\'");
151 }
152 return output;
153}
154
155// Stream functions ----------------------------------------------------------
156XmlOutput& XmlOutput::operator<<(const QString& o)
157{
158 return operator<<(data(o));
159}
160
161XmlOutput& XmlOutput::operator<<(const xml_output& o)
162{
163 switch(o.xo_type) {
164 case tNothing:
165 break;
166 case tRaw:
167 addRaw(o.xo_text);
168 break;
169 case tDeclaration:
170 addDeclaration(o.xo_text, o.xo_value);
171 break;
172 case tTag:
173 newTagOpen(o.xo_text);
174 break;
175 case tCloseTag:
176 if (o.xo_value.count())
177 closeAll();
178 else if (o.xo_text.count())
179 closeTo(o.xo_text);
180 else
181 closeTag();
182 break;
183 case tAttribute:
184 addAttribute(o.xo_text, o.xo_value);
185 break;
186 case tData:
187 {
188 // Special case to be able to close tag in normal
189 // way ("</tag>", not "/>") without using addRaw()..
190 if (!o.xo_text.count()) {
191 closeOpen();
192 break;
193 }
194 QString output = doConversion(o.xo_text);
195 output.replace('\n', "\n" + currentIndent);
196 addRaw(QString("\n%1%2").arg(currentIndent).arg(output));
197 }
198 break;
199 case tComment:
200 {
201 QString output("<!--%1-->");
202 addRaw(output.arg(o.xo_text));
203 }
204 break;
205 case tCDATA:
206 {
207 QString output("<![CDATA[\n%1\n]]>");
208 addRaw(output.arg(o.xo_text));
209 }
210 break;
211 }
212 return *this;
213}
214
215
216// Output functions ----------------------------------------------------------
217void XmlOutput::newTag(const QString &tag)
218{
219 Q_ASSERT_X(tag.count(), "XmlOutput", "Cannot open an empty tag");
220 newTagOpen(tag);
221 closeOpen();
222}
223
224void XmlOutput::newTagOpen(const QString &tag)
225{
226 Q_ASSERT_X(tag.count(), "XmlOutput", "Cannot open an empty tag");
227 closeOpen();
228
229 if (format == NewLine)
230 xmlFile << endl << currentIndent;
231 xmlFile << '<' << doConversion(tag);
232 currentState = Attribute;
233 tagStack.append(tag);
234 increaseIndent(); // ---> indent
235}
236
237void XmlOutput::closeOpen()
238{
239 switch(currentState) {
240 case Bare:
241 case Tag:
242 return;
243 case Attribute:
244 break;
245 }
246 xmlFile << '>';
247 currentState = Tag;
248}
249
250void XmlOutput::closeTag()
251{
252 switch(currentState) {
253 case Bare:
254 if (tagStack.count())
255 //warn_msg(WarnLogic, "<Root>: Cannot close tag in Bare state, %d tags on stack", tagStack.count());
256 qDebug("<Root>: Cannot close tag in Bare state, %d tags on stack", tagStack.count());
257 else
258 //warn_msg(WarnLogic, "<Root>: Cannot close tag, no tags on stack");
259 qDebug("<Root>: Cannot close tag, no tags on stack");
260 return;
261 case Tag:
262 decreaseIndent(); // <--- Pre-decrease indent
263 if (format == NewLine)
264 xmlFile << endl << currentIndent;
265 xmlFile << "</" << doConversion(tagStack.last()) << '>';
266 tagStack.pop_back();
267 break;
268 case Attribute:
269 xmlFile << "/>";
270 tagStack.pop_back();
271 currentState = Tag;
272 decreaseIndent(); // <--- Post-decrease indent
273 break;
274 }
275}
276
277void XmlOutput::closeTo(const QString &tag)
278{
279 bool cont = true;
280 if (!tagStack.contains(tag) && !tag.isNull()) {
281 //warn_msg(WarnLogic, "<%s>: Cannot close to tag <%s>, not on stack", tagStack.last().latin1(), tag.latin1());
282 qDebug("<%s>: Cannot close to tag <%s>, not on stack", tagStack.last().toLatin1().constData(), tag.toLatin1().constData());
283 return;
284 }
285 int left = tagStack.count();
286 while (left-- && cont) {
287 cont = tagStack.last().compare(tag) != 0;
288 closeTag();
289 }
290}
291
292void XmlOutput::closeAll()
293{
294 if (!tagStack.count())
295 return;
296 closeTo(QString());
297}
298
299void XmlOutput::addDeclaration(const QString &version, const QString &encoding)
300{
301 switch(currentState) {
302 case Bare:
303 break;
304 case Tag:
305 case Attribute:
306 //warn_msg(WarnLogic, "<%s>: Cannot add declaration when not in bare state", tagStack.last().toLatin1().constData());
307 qDebug("<%s>: Cannot add declaration when not in bare state", tagStack.last().toLatin1().constData());
308 return;
309 }
310 QString outData = QString("<?xml version=\"%1\" encoding = \"%2\"?>")
311 .arg(doConversion(version))
312 .arg(doConversion(encoding));
313 addRaw(outData);
314}
315
316void XmlOutput::addRaw(const QString &rawText)
317{
318 closeOpen();
319 xmlFile << rawText;
320}
321
322void XmlOutput::addAttribute(const QString &attribute, const QString &value)
323{
324 switch(currentState) {
325 case Bare:
326 case Tag:
327 //warn_msg(WarnLogic, "<%s>: Cannot add attribute since tags not open", tagStack.last().toLatin1().constData());
328 qDebug("<%s>: Cannot add attribute (%s) since tag's not open",
329 (tagStack.count() ? tagStack.last().toLatin1().constData() : "Root"),
330 attribute.toLatin1().constData());
331 return;
332 case Attribute:
333 break;
334 }
335 if (format == NewLine)
336 xmlFile << endl;
337 xmlFile << currentIndent << doConversion(attribute) << "=\"" << doConversion(value) << "\"";
338}
339
340QT_END_NAMESPACE
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