summaryrefslogtreecommitdiffstats
path: root/lib/util/domutil.cpp
blob: 1f148fadaa73ef4c2778e08c111316de3b1805a6 (plain)
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
354
355
356
357
358
359
360
361
362
363
364
365
366
367
/***************************************************************************
 *   Copyright (C) 2001-2002 by Bernd Gehrmann                             *
 *   bernd@tdevelop.org                                                    *
 *   default support: Eray Ozkural (exa)                                   *
 *   additions: John Firebaugh <jfirebaugh@kde.org>                        *
 *              Jakob Simon-Gaarde <jakob@simon-gaarde.dk>                 *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "domutil.h"

#include <kdebug.h>
#include <tqstringlist.h>
#include <tqfile.h>


void DomUtil::makeEmpty( TQDomElement& e )
{
    while( !e.firstChild().isNull() )
        e.removeChild( e.firstChild() );
}

TQDomElement DomUtil::elementByPath(const TQDomDocument &doc, const TQString &path)
{
    TQStringList l = TQStringList::split('/', path);

    TQDomElement el;
	if(&doc) el = doc.documentElement();
    TQStringList::ConstIterator it;
    for (it = l.begin(); it != l.end(); ++it) {
        el = el.namedItem(*it).toElement();
    }

    return el;
}


TQString DomUtil::readEntry(const TQDomDocument &doc, const TQString &path, const TQString &defaultEntry)
{
    TQDomElement el = elementByPath(doc, path);
    if (el.isNull())
        return defaultEntry;
    else
        return el.firstChild().toText().data();
}

/// @todo consider whether it's okay to accept empty string == default value
/// if not use the below type
///typedef pair<bool,TQString> EltInfo;

TQString DomUtil::readEntryAux(const TQDomDocument &doc, const TQString &path)
{
    TQDomElement el = elementByPath(doc, path);
    if (el.isNull())
        return TQString();
    else
        return el.firstChild().toText().data();
}

int DomUtil::readIntEntry(const TQDomDocument &doc, const TQString &path, int defaultEntry)
{
    TQString entry = readEntryAux(doc, path);
    if (entry.isNull())
      return defaultEntry;
    else
      return entry.toInt();
}


bool DomUtil::readBoolEntry(const TQDomDocument &doc, const TQString &path, bool defaultEntry)
{
    TQString entry = readEntryAux(doc, path);
    if (entry.isNull())
      return defaultEntry;
    else
      return entry == "TRUE" || entry == "true";
}


TQStringList DomUtil::readListEntry(const TQDomDocument &doc, const TQString &path, const TQString &tag)
{
    TQStringList list;

    TQDomElement el = elementByPath(doc, path);
    TQDomElement subEl = el.firstChild().toElement();
    while (!subEl.isNull()) {
        if (subEl.tagName() == tag)
            list << subEl.firstChild().toText().data();
        subEl = subEl.nextSibling().toElement();
    }

    return list;
}


DomUtil::PairList DomUtil::readPairListEntry(const TQDomDocument &doc, const TQString &path, const TQString &tag,
                                             const TQString &firstAttr, const TQString &secondAttr)
{
    PairList list;
    
    TQDomElement el = elementByPath(doc, path);
    TQDomElement subEl = el.firstChild().toElement();
    while (!subEl.isNull()) {
        if (subEl.tagName() == tag) {
            TQString first = subEl.attribute(firstAttr);
            TQString second = subEl.attribute(secondAttr);
            list << Pair(first, second);
        }
        subEl = subEl.nextSibling().toElement();
    }
    
    return list;
}

TQMap<TQString, TQString> DomUtil::readMapEntry(const TQDomDocument &doc, const TQString& path)
{
    TQMap<TQString, TQString> map;

    TQDomElement el = elementByPath(doc, path);
    TQDomElement subEl = el.firstChild().toElement();
    while (!subEl.isNull()) {
        map[subEl.tagName()] = subEl.firstChild().toText().data();
	subEl = subEl.nextSibling().toElement();
    }

    return map;
}

TQDomElement DomUtil::namedChildElement( TQDomElement& el, const TQString& name )
{
    TQDomElement child = el.namedItem( name ).toElement();
    if (child.isNull()) {
        child = el.ownerDocument().createElement( name );
        el.appendChild(child);
    }
    return child;
}


TQDomElement DomUtil::createElementByPath(TQDomDocument &doc, const TQString &path)
{
    TQStringList l = TQStringList::split('/', path);

    TQDomElement el;
      if(&doc) el =  doc.documentElement();
    TQStringList::ConstIterator it;
    for (it = l.begin(); it != l.end(); ++it)
        el = DomUtil::namedChildElement( el, *it );
        
    while (!el.firstChild().isNull())
        el.removeChild(el.firstChild());

    return el;
}


void DomUtil::writeEntry(TQDomDocument &doc, const TQString &path, const TQString &value)
{
    TQDomElement el = createElementByPath(doc, path);
    el.appendChild(doc.createTextNode(value));
}

void DomUtil::writeMapEntry(TQDomDocument &doc, const TQString &path, const TQMap<TQString, TQString> &map)
{
    TQString basePath( path + "/" );
    TQMap<TQString,TQString>::ConstIterator it;
    for (it = map.begin(); it != map.end(); ++it)
    {
        kdDebug( 9010 ) << "writing " << basePath << ";" << it.key() << ";" << it.data() << endl;
	if( ! it.key().isEmpty() )
            writeEntry(doc, basePath + it.key(), it.data() );
    }
}

void DomUtil::writeIntEntry(TQDomDocument &doc, const TQString &path, int value)
{
    writeEntry(doc, path, TQString::number(value));
}


void DomUtil::writeBoolEntry(TQDomDocument &doc, const TQString &path, bool value)
{
    writeEntry(doc, path, value? "true" : "false");
}


void DomUtil::writeListEntry(TQDomDocument &doc, const TQString &path, const TQString &tag,
                             const TQStringList &value)
{
    TQDomElement el = createElementByPath(doc, path);

    TQStringList::ConstIterator it;
    for (it = value.begin(); it != value.end(); ++it) {
        TQDomElement subEl = doc.createElement(tag);
        subEl.appendChild(doc.createTextNode(*it));
        el.appendChild(subEl);
    }
}


void DomUtil::writePairListEntry(TQDomDocument &doc, const TQString &path, const TQString &tag,
                                 const TQString &firstAttr, const TQString &secondAttr,
                                 const PairList &value)
{
    TQDomElement el = createElementByPath(doc, path);

    PairList::ConstIterator it;
    for (it = value.begin(); it != value.end(); ++it) {
        TQDomElement subEl = doc.createElement(tag);
        subEl.setAttribute(firstAttr, (*it).first);
        subEl.setAttribute(secondAttr, (*it).second);
        el.appendChild(subEl);
    }
}

DomPath DomUtil::resolvPathStringExt(const TQString pathstring)
{
    // parse path
    unsigned int i;
    TQStringList pathParts = TQStringList::split('/',pathstring);
    DomPath dompath;
    for (i=0; i<pathParts.count(); i++)
    {
      TQStringList pathElemParts = TQStringList::split('|',pathParts[i],TRUE);
      DomPathElement dompathelem;
      dompathelem.tagName = pathElemParts[0].simplifyWhiteSpace();
      if (pathElemParts.count()>1)
      {
        // handle attributes
        TQStringList attrParts = TQStringList::split(';',pathElemParts[1]);
        for (unsigned int j=0; j<attrParts.count(); j++)
        {
          TQStringList attribSet = TQStringList::split('=',attrParts[j]);
          if (attribSet.count()<2)
            continue;
          DomAttribute domattribute;
          domattribute.name = attribSet[0].simplifyWhiteSpace();
          domattribute.value = attribSet[1].simplifyWhiteSpace();
          dompathelem.attribute.append(domattribute);
        }
      }
      if (pathElemParts.count()>2)
	dompathelem.matchNumber = pathElemParts[2].toInt();
      else
	dompathelem.matchNumber = 0; // or else the first
      dompath.append(dompathelem);
    }
    return dompath;
}


#define rightchild !wrongchild

TQDomElement DomUtil::elementByPathExt(TQDomDocument &doc, const TQString &pathstring)
{
  DomPath dompath = resolvPathStringExt(pathstring);
  TQDomElement elem = doc.documentElement();
  TQDomNodeList children;
  TQDomElement nextElem = elem;
  for (unsigned int j=0; j<dompath.count(); j++)
  {
    children = nextElem.childNodes();
    DomPathElement dompathelement= dompath[j];
    bool wrongchild = false;
    int matchCount = 0;
    for (unsigned int i=0; i<children.count(); i++)
    {
      wrongchild = false;
      TQDomElement child = children.item(i).toElement();
      TQString tag = child.tagName();
      tag = dompathelement.tagName;
      if (child.tagName() == dompathelement.tagName)
      {
        for (unsigned int k=0; k<dompathelement.attribute.count(); k++)
        {
          DomAttribute domattribute = dompathelement.attribute[k];
          TQDomAttr domattr = child.attributeNode(domattribute.name);
          if (domattr.isNull() ||
	      domattr.value() != domattribute.value)
          {
            wrongchild = true;
            break;
          }
        }      
      }
      else
        wrongchild=true;
      if (rightchild)
      {
        if (dompathelement.matchNumber == matchCount++)
        {
          nextElem = child;
          break;
        }
      }
    }
    if (wrongchild)
    {
      TQDomElement nullDummy;
      nullDummy.clear();
      return nullDummy;
    }
  }
  return nextElem;
}


bool DomUtil::openDOMFile(TQDomDocument &doc, TQString filename)
{
  TQFile file( filename );
  if ( !file.open( IO_ReadOnly ) )
    return false;
  if ( !doc.setContent( &file ) ) {
    file.close();
    return false;
  }
  file.close();
  return true;
}

bool DomUtil::saveDOMFile(TQDomDocument &doc, TQString filename)
{
  TQFile file( filename );
  if ( !file.open( IO_ReadWrite | IO_Truncate ) )
    return false;
  TQTextStream t( &file );
  t << doc.toString();
  file.close();
  return true;
}

bool DomUtil::removeTextNodes(TQDomDocument doc,TQString pathExt)
{
  TQDomElement elem = elementByPathExt(doc,pathExt);
  if (elem.isNull())
    return false;
  TQDomNodeList children = elem.childNodes();
  for (unsigned int i=0;i<children.count();i++)
    if (children.item(i).isText())
      elem.removeChild(children.item(i));
  return true;
}


bool DomUtil::appendText(TQDomDocument doc, TQString pathExt, TQString text)
{
  TQDomElement elem = elementByPathExt(doc,pathExt);
  if (elem.isNull())
    return false;
  elem.appendChild(doc.createTextNode(text));
  return true;
}


bool DomUtil::replaceText(TQDomDocument doc, TQString pathExt, TQString text)
{
  if (removeTextNodes(doc,pathExt) &&
      appendText(doc,pathExt,text))
    return true;
  else
    return false;
}