summaryrefslogtreecommitdiffstats
path: root/poxml/parser.cpp
blob: 468ff24e1515e5f08053ba752b0125598a5fab49 (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
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
// #define POXML_DEBUG

#include "parser.h"
#include <iostream>
#include <stdlib.h>
#include <assert.h>
#include <tqregexp.h>

using namespace std;

static const char *singletags[] = {"beginpage","imagedata", "colspec", "spanspec",
                                   "anchor", "xref", "area",
                                   "footnoteref", "void", "inlinegraphic",
                                   "glosssee", "graphic", "xi:include",
                                   0};
static const char *cuttingtags[] = {"bridgehead", "trans_comment", "para", "title", "term",
                                    "entry", "contrib", "keyword", "example",
                                    "note", "footnote", "caution",
                                    "informalexample", "remark", "comment",
                                    "imageobject", "varlistentry", "thead",
                                    "tbody", "tgroup", "row", "screenshot", "screeninfo",
                                    "variablelist", "step", "procedure",
                                    "step", "holder", "listitem", "important",
                                    "author", "itemizedlist", "orderedlist",
                                    "caption", "textobject", "mediaobject",
                                    "tip", "glossdef", "inlinemediaobject",
                                    "simplelist", "member", "glossentry",
				    "areaspec", "corpauthor", "indexterm",
                                    "calloutlist", "callout", "subtitle",
				    "table", "part", "xi:fallback", "primary",
                                    "secondary", "chapter", "sect1", "sect2",
                                    "figure", "abstract", "sect3", "sect", "sect4",
                                    "warning", "preface", "authorgroup", "keywordset",
				    "informaltable", "qandaentry", "question", "answer",
				    "othercredit", "affiliation", "qandaset",
				    "cmdsynopsis", "funcsynopsis", "funcsynopsisinfo" ,
				    "epigraph", "attribution", "glossary", "chapterinfo",
				    "glossdiv", "blockingquote", "simplesect", "section",
				    "qandadiv", "refsect1", "refmeta", "formalpara",
				    "refentry", "refnamediv", "refpurpose", "refentrytitle",
                                    "refmiscinfo", "refsect2", "refsect3", "refsect1info",
                                    "refsect2info", "refsect3info", "refsection", "refsectioninfo",
                                    "refsynopsisdiv", "refsysnopsisdivinfo", "remark",
                                    "revdescription", "glossentry", "partinfo", 
				    "segmentedlist", "segtitle", "seg", "seglistitem", "screenco",
                                    0};
static const char *literaltags[] = {"literallayout", "synopsis", "screen",
				    "programlisting", 0};

bool StructureParser::fatalError ( const TQXmlParseException &e )
{
    cerr << "fatalError " << e.message().latin1() << " " << e.lineNumber() << " "
         << e.columnNumber() << endl;
    return false;
}

bool StructureParser::startDocument()
{
    infos_reg = TQRegExp("\\s*poxml_line=\"(\\d+)\" poxml_col=\"(\\d+)\"");
    do_not_split_reg = TQRegExp("\\s*condition=\"do-not-split\"");
    message = "";
    inside = 0;
    return true;
}

bool StructureParser::isCuttingTag(const TQString &qName)
{
    int index = 0;
    while (cuttingtags[index]) {
        if (cuttingtags[index] == qName)
            return true;
        index++;
    }
    return isLiteralTag(qName);
}

bool StructureParser::isSingleTag(const TQString &qName)
{
    int index = 0;
    while (singletags[index]) {
        if (singletags[index] == qName)
            return true;
        index++;
    }
    return false;
}

bool StructureParser::isLiteralTag(const TQString &qName)
{
    int index = 0;
    while (literaltags[index]) {
        if (literaltags[index] == qName)
            return true;
        index++;
    }
    return false;
}

bool StructureParser::skippedEntity ( const TQString & name )
{
    if (inside)
        message += TQString("&%1;").arg(name);
    return true;
}

bool StructureParser::startElement( const TQString& , const TQString& ,
                                    const TQString& qName,
                                    const TQXmlAttributes & attr )
{
    TQString tname = qName.lower();

    bool first = false;

    if (isCuttingTag(tname)) {
        if (!inside) {
            message = TQString();
            list.pc.increasePara();
            startline = locator->lineNumber();
            startcol = locator->columnNumber();
            first = true;
        }
        inside++;
    }

    if (inside)
    {
        TQString tmp = "<" + tname;
        for (int i = 0; i < attr.length(); i++) {
            tmp += TQString(" %1=\"%2\"").arg(attr.qName(i)).arg(attr.value(i));
        }
        tmp += TQString(" poxml_line=\"%1\"").arg(locator->lineNumber());
        tmp += TQString(" poxml_col=\"%1\"").arg(locator->columnNumber());

        if (isSingleTag(qName))
            tmp += "/>";
        else
            tmp += ">";
        message += tmp;
        if (first)
            startcol -= message.length();
    }

    if (tname == "anchor" || tname.left(4) == "sect" || tname == "chapter")
        if (!attr.value("id").isEmpty()) list.pc.addAnchor(attr.value("id"));

    return true;
}

bool StructureParser::startCDATA()
{
    if ( inside )
        message += "<![CDATA[";
    return true;
}

bool StructureParser::endCDATA()
{
    if ( inside )
        message += "]]>";
    return true;
}

bool StructureParser::isClosure(const TQString &message)
{
    assert(message.at(0) == '<');
    int endindex = 1;
    while (!message.at(endindex).isSpace() && message.at(endindex) != '>')
        endindex++;
    TQString tag = message.mid(1, endindex - 1);
    return closureTag(message, tag);
}

bool StructureParser::closureTag(const TQString& message, const TQString &tag)
{
#ifdef POXML_DEBUG
    tqDebug("closureTag %s %s", message.latin1(), tag.latin1());
#endif

    int inside = 0;
    uint index = 0;
    while (true)
    {
        int nextclose = message.find(TQRegExp(TQString::fromLatin1("</%1[\\s>]").arg(tag)), index);
        int nextstart = message.find(TQRegExp(TQString::fromLatin1("<%1[>\\s]").arg(tag)), index);
        //  tqDebug("finding %d %d %d %d", nextstart, nextclose, index, inside);
        if (nextclose == -1) {
#ifdef POXML_DEBUG
            tqDebug("ending on no close anymore %d %d %d %d", (!inside && index >= message.length()), inside, index, message.length());
#endif
            return !inside && index >= message.length();
        }
        if (nextstart == -1)
            nextstart = message.length() + 1;

        if (nextstart < nextclose) {
            inside++;
            index = nextstart + 1;
            while (message.at(index) != '>')
                index++;
            index++;
        } else {
            inside--;
            index = nextclose + 1;
            while (message.at(index) != '>')
                index++;
            index++;
            if (!inside) {
#ifdef POXML_DEBUG
                tqDebug("ending on exit %d", index >= message.length());
#endif
                return index >= message.length();
            }
        }
    }
}

void StructureParser::descape(TQString &message)
{
    uint index = 0;
    stripWhiteSpace( message );

    int inside = 0;
    bool lastws = false;

    while (index < message.length()) {
        switch (message.at(index).latin1()) {
            case '\n':
            case '\t':
            case '\r':
                if (!inside)
                    message[index] = ' ';
            case ' ':
                if (!inside && lastws)
                    message[index] = '\010';
                lastws = true;
                break;
            case '<': {
                uint endindex = index+1;
                while (endindex < message.length() && !message.at(endindex).isSpace() &&
                       message.at(endindex) != '>')
                    endindex++;
                TQString tag = message.mid(index + 1, endindex - index - 1);
                if (tag.at(0) == '/') {
                    if (isLiteralTag(tag.mid(1)))
                        inside--;
                } else
                    if (isLiteralTag(tag))
                        inside++;
                break;
            }
            default:
                lastws = false;
        }

        index++;
    }
    message.replace(TQRegExp("\010"), "");
}

bool StructureParser::formatMessage(MsgBlock &msg) const
{
#ifdef POXML_DEBUG
    tqDebug("formatMessage %s", msg.msgid.latin1());
#endif

    int offset = 0;
    bool changed = false;
    bool recurse = true;

    if (msg.msgid.isEmpty())
        return true;

    for (int index = 0; msg.msgid.at(index) == ' '; index++, offset++);
    stripWhiteSpace( msg.msgid );

    // removing starting single tags
    for (int index = 0; singletags[index]; index++)
    {
        int slen = strlen(singletags[index]);

        if (msg.msgid.left(slen + 1) == TQString::fromLatin1("<%1").arg(singletags[index]) &&
            !msg.msgid.at( slen + 1 ).isLetterOrNumber() )
        {
#ifdef POXML_DEBUG
            tqDebug("removing single tag %s", singletags[index]);
#endif
            int strindex = strlen(singletags[index]) + 1;
            while (msg.msgid.at(strindex) != '>')
                strindex++;
            msg.msgid = msg.msgid.mid(strindex + 1);
            changed = true;
            offset += strindex + 1;
            for (int index = 0; msg.msgid.at(index) == ' '; index++, offset++) ;
            stripWhiteSpace( msg.msgid );
        }
    }

    while (msg.msgid.right(2) == "/>")
    {
        int strindex = msg.msgid.length() - 2;
        while (msg.msgid.at(strindex) != '<')
            strindex--;
        msg.msgid = msg.msgid.left(strindex);
        stripWhiteSpace( msg.msgid ); // only removed space at the end
        changed = true;
    }

    for (int index = 0; msg.msgid.at(index) == ' '; index++, offset++) ;
    stripWhiteSpace( msg.msgid );

    while (true) {
        if (msg.msgid.at(0) != '<')
            break;
        if (msg.msgid.at(msg.msgid.length() - 1) != '>')
            break;
        int strindex = 1;
        while (msg.msgid.at(strindex) != ' ' && msg.msgid.at(strindex) != '>')
            strindex++;
        TQString starttag = msg.msgid.mid(1, strindex - 1);
        int endindex = msg.msgid.length() - 2;
        while (msg.msgid.at(endindex) != '<' && msg.msgid.at(endindex + 1) != '/')
            endindex--;
#ifdef POXML_DEBUG
        tqDebug("endIndex %d", endindex);
#endif
        strindex = endindex;
        TQString orig = msg.msgid;

        TQString endtag = msg.msgid.mid(endindex + 2, msg.msgid.length() - (endindex + 2) - 1);
        TQString endtag_attr = endtag.mid(endtag.find(' '), endtag.length());
        endtag.replace(infos_reg, "");
        if (endtag == starttag) {
            if (!closureTag(msg.msgid, starttag))
                break;

            // removing start/end tags
            msg.msgid = msg.msgid.left(endindex);
            strindex = 0;
            while (msg.msgid.at(strindex) != '>')
                strindex++;
            TQString attr = msg.msgid.left(strindex);
            msg.msgid = msg.msgid.mid(strindex + 1);
            offset += strindex + 1;
            for (int index = 0; msg.msgid.at(index) == ' '; index++, offset++) ;
            stripWhiteSpace( msg.msgid );
            msg.tag = starttag;

            if (infos_reg.search(attr) >= 0) {
                msg.lines.first().start_line = infos_reg.cap(1).toInt();
                msg.lines.first().start_col = infos_reg.cap(2).toInt();
#ifdef POXML_DEBUG
                tqDebug("col %s %s %d", attr.latin1(), msg.msgid.latin1(), msg.lines.first().start_col);
#endif
                offset = 0;

                if (infos_reg.search(endtag_attr) >= 0) {
                    msg.lines.first().end_line = infos_reg.cap(1).toInt();
                    msg.lines.first().end_col = infos_reg.cap(2).toInt() + 1;
                }
            }
            if (do_not_split_reg.search(attr) >= 0) {
                msg.do_not_split = true;
                break;
            }

            changed = true;
        } else
            break;
    }

#ifdef POXML_DEBUG
    tqDebug("formatMessage result %s %d %d", msg.msgid.latin1(), changed && recurse, msg.lines.first().start_col);
#endif

    msg.lines.first().offset += offset;
    if (msg.do_not_split)
        recurse = false;

    if (changed && recurse)
        formatMessage(msg);

    return !recurse; // indicates an abort
}

MsgList StructureParser::splitMessage(const MsgBlock &mb)
{
    MsgList result;

    MsgBlock msg1 = mb;
    MsgBlock msg2 = mb;

    TQString message = mb.msgid;

#ifdef POXML_DEBUG
    tqDebug("splitMessage %s", message.latin1());
#endif

    if (message.at(0) == '<') {
        int endindex = 1;
        while (!message.at(endindex).isSpace() && message.at(endindex) != '>')
            endindex++;
        TQString tag = message.mid(1, endindex - 1);

        if (closureTag(message, tag))
            goto error;

        if (isCuttingTag(tag))
        {
            // if the message starts with a cutting tag, this tag has to
            // end in between. We split both messages and format them
            int strindex = endindex;
            strindex++;

            int inside = 1;
            while (true) {
#ifdef POXML_DEBUG
                tqDebug("inside %s %d", message.mid(strindex, 35).latin1(), inside);
#endif

                // the exception for poxml_* attributes is made in the closing tag
                int closing_index = message.find(TQRegExp(TQString::fromLatin1("</%1[\\s>]").arg(tag)),
                                                 strindex);
                int starting_index = message.find(TQRegExp(TQString::fromLatin1("<%1[\\s>]").arg(tag)),
                                                  strindex);

#ifdef POXML_DEBUG
                tqDebug("index1 %d %d %d", closing_index, starting_index, strindex);
#endif

                // when a new start was found, we set the start_index after the next match
                // (and set strindex to it later - increasing inside)
                if (starting_index != -1) {
                    starting_index += tag.length() + 1;
                    while (message.at(starting_index) != '>')
                        starting_index++;
                    starting_index++;
                }

#ifdef POXML_DEBUG
                tqDebug("index %d %d %d", closing_index, starting_index, strindex);
#endif

                assert(closing_index != -1);
                closing_index += 3 + tag.length();
                while (message.at(closing_index - 1) != '>')
                    closing_index++;

                if (starting_index == -1) {
                    strindex = closing_index;
#ifdef POXML_DEBUG
                    tqDebug("set strindex %d", strindex);
#endif
                    inside--;
                    if (!inside)
                        break;
                    continue;
                }
                if (closing_index < starting_index)
                {
                    strindex = closing_index;
                    inside--;
                } else {
                    strindex = starting_index;
                    inside++;
                }

                if (!inside)
                    break;
            }

#ifdef POXML_DEBUG
            tqDebug("split into %s -AAAAAANNNNNNDDDDDD- %s", message.left(strindex).latin1(), message.mid(strindex).latin1());
#endif
            msg1.msgid = message.left(strindex);
            bool leave = formatMessage(msg1);

            msg2.msgid = message.mid(strindex);
            msg2.lines.first().offset += strindex;
            leave = leave & formatMessage(msg2);

            if (msg1.lines.first().end_line > msg2.lines.first().start_line ||
                (msg1.lines.first().end_line == msg2.lines.first().start_line &&
                 msg1.lines.first().end_col > msg2.lines.first().start_col))
            {
                msg2.lines.first().start_line = msg1.lines.first().end_line;
                msg2.lines.first().start_col = msg1.lines.first().end_col;
            }

#ifdef POXML_DEBUG
            tqDebug("splited %d-%d(%s) and %d-%d(%s)", msg1.lines.first().end_line,msg1.lines.first().end_col,
                   msg1.msgid.latin1(),
                   msg2.lines.first().start_line,msg2.lines.first().start_col, msg2.msgid.latin1());
#endif

            if (leave) {
                result.append(msg1);
                result.append(msg2);
                return result;
            }
            result = splitMessage(msg1);
            result += splitMessage(msg2);
            return result;
        }

    }

    if (message.at(message.length() - 1 ) == '>')
    {
        int endindex = message.length() - 1;
        while (endindex >= 0 && (message.at(endindex) != '<' || message.at(endindex + 1) != '/'))
            endindex--;
        TQString tag = message.mid(endindex + 2, message.length() - endindex - 3);
        if (tag.find(' ') > 0 ) {
            tag = tag.left(tag.find(' '));
        }
#ifdef POXML_DEBUG
        tqDebug("behind tag %s", tag.latin1());
#endif

        if (isCuttingTag(tag))
        {
            // if the message ends with a cutting tag, this tag has to
            // start in between. We split both messages and format them
            int strindex = endindex;

            int inside = 1;
            while (true) {
#ifdef POXML_DEBUG
                tqDebug("inside %s %d", message.mid(strindex, 35).latin1(), inside);
#endif

                int closing_index = message.findRev(TQRegExp(TQString::fromLatin1("</%1[\\s>]").arg(tag)),
                                                    strindex - 1);
                int starting_index = message.findRev(TQRegExp(TQString::fromLatin1("<%1[\\s>]").arg(tag)),
                                                     strindex - 1);

#ifdef POXML_DEBUG
                tqDebug("index1 %d %d %d", closing_index, starting_index, strindex);
#endif

                if (starting_index == -1) {
                    assert(inside == 1);
                    break;
                }

                if (closing_index > starting_index)
                {
                    strindex = closing_index;
                    inside++;
                } else {
                    strindex = starting_index;
                    inside--;
                }

                if (!inside)
                    break;
            }


#ifdef POXML_DEBUG
            tqDebug("split2 into \"%s\" -AAAAAANNNNNNNNNDDDDDDDDDDD- \"%s\"", message.left(strindex).latin1(), message.mid(strindex).latin1());
#endif

            msg1.msgid = message.left(strindex);
            formatMessage(msg1);

            msg2.msgid = message.mid(strindex);
            msg2.lines.first().offset += strindex;
            formatMessage(msg2);

            if (msg1.lines.first().end_line > msg2.lines.first().start_line ||
                (msg1.lines.first().end_line == msg2.lines.first().start_line &&
                 msg1.lines.first().end_col > msg2.lines.first().start_col))
            {
                msg1.lines.first().end_line = msg2.lines.first().start_line;
                msg1.lines.first().end_col = msg2.lines.first().start_col - 1;
            }

#ifdef POXML_DEBUG
            tqDebug("splited %d-%d(%s) and %d-%d(%s)", msg1.lines.first().end_line,msg1.lines.first().end_col,
                   msg1.msgid.latin1(),
                   msg2.lines.first().start_line,msg2.lines.first().start_col, msg2.msgid.latin1());
#endif

            result = splitMessage(msg1);
            result += splitMessage(msg2);

            return result;
        }
    }
error:
    result.append(mb);
    return result;
}

bool StructureParser::endElement( const TQString& , const TQString&, const TQString& qName)
{
    TQString tname = qName.lower();

    // tqDebug("endElement %s - %s %d", tname.latin1(), message.latin1(), inside);

    if (inside) {
        if (!isSingleTag(qName)) {
            message += TQString("</%1").arg(tname);
            message += TQString(" poxml_line=\"%1\"").arg(locator->lineNumber());
            message += TQString(" poxml_col=\"%1\"").arg(locator->columnNumber());
            message += ">";
        }
    }

    if (isCuttingTag(tname)) {
        inside--;
        if (!inside) {
            MsgBlock m;
            descape(message);
            m.msgid = message;

            BlockInfo bi;
            bi.start_line = startline;
            bi.start_col = startcol;
            bi.end_line = locator->lineNumber();
            bi.end_col = locator->columnNumber() + 1;
            bi.offset = m.lines.first().offset;
            m.lines.append(bi);
            formatMessage(m);

            MsgList messages = splitMessage(m);
            for (MsgList::Iterator it = messages.begin();
                 it != messages.end(); ++it)
            {
#ifdef POXML_DEBUG
                tqDebug("parser '%s' %d '%s' %d:%d", (*it).msgid.latin1(), (*it).lines.first().offset, message.mid((*it).lines.first().offset, 15).latin1(), (*it).lines.first().start_line, (*it).lines.first().start_col);
#endif
                // if the remaining text still starts with a tag, the poxml_ info
                // is most probably more correct
                if ((*it).msgid.at(0) == '<' && isClosure((*it).msgid)) {
                    if (infos_reg.search((*it).msgid) >= 0) {
                        (*it).lines.first().start_line = infos_reg.cap(1).toInt();
                        (*it).lines.first().start_col =  infos_reg.cap(2).toInt();;
                        (*it).lines.first().offset = 0;
                    }
                }
                (*it).msgid.replace(infos_reg, TQString());

                if (!(*it).msgid.isEmpty())
                    list.append(*it);
            }
        }
    }

    return true;
}

bool StructureParser::comment ( const TQString &c )
{
    if (c.left(7) != " TRANS:")
        return true;

    assert(false);
    return true;
}

TQString StructureParser::escapeLiterals( const TQString &_contents) {
    TQString contents = _contents;

    contents.replace(TQRegExp("\n"), "&POXML_LINEFEED;");
    contents.replace(TQRegExp("<"), "&POXML_LT;");
    contents.replace(TQRegExp(">"), "&POXML_GT;");
    contents.replace(TQRegExp("\t"), "        ");
    contents.replace(TQRegExp(" "), "&POXML_SPACE;");

    return contents;
}

TQString StructureParser::descapeLiterals( const TQString &_contents) {
    TQString contents = _contents;

    contents.replace(TQRegExp("&POXML_LINEFEED;"), "\n");
    contents.replace(TQRegExp("&POXML_LT;"), "<");
    contents.replace(TQRegExp("&POXML_GT;"), ">");
    contents.replace(TQRegExp("&POXML_SPACE;"), " ");
    contents.replace(TQRegExp("!POXML_AMP!"), "&");
    return contents;
}

void StructureParser::stripWhiteSpace( TQString &contents)
{
    contents = contents.stripWhiteSpace();
    bool changed;
    do {
        changed = false;
        if (contents.startsWith("&POXML_LINEFEED;")) {
            contents = contents.mid(strlen("&POXML_LINEFEED;"), contents.length());
            changed = true;
        }
        if (contents.startsWith("&POXML_SPACE;")) {
            contents = contents.mid(strlen("&POXML_SPACE;"), contents.length());
            changed = true;
        }
        if (contents.endsWith("&POXML_LINEFEED;")) {
            contents = contents.left(contents.length() - strlen("&POXML_LINEFEED;"));
            changed = true;
        }
        if (contents.endsWith("&POXML_SPACE;")) {
            contents = contents.left( contents.length() - strlen("&POXML_SPACE;"));
            changed = true;
        }
    } while (changed);
}

void StructureParser::cleanupTags( TQString &contents )
{
    contents.replace(TQRegExp("&"), "!POXML_AMP!");

    for (int index = 0; literaltags[index]; index++) {
        TQRegExp start(TQString("<%1[\\s>]").arg(literaltags[index]));
        TQRegExp end(TQString("</%1[\\s>]").arg(literaltags[index]));
        int strindex = 0;
        while (true) {
            strindex = contents.find(start, strindex);
            if (strindex < 0)
                break;
            while (contents.at(strindex) != '>')
                strindex++;
            strindex++; // one more
            int endindex = contents.find(end, strindex);
            TQString part = contents.mid(strindex, endindex - strindex);
            TQString newpart = escapeLiterals(part);
            contents.replace(strindex, part.length(), newpart);
            // this assumes that literal tags to not overlap
            strindex = strindex + newpart.length();
        }
    }

    TQRegExp unclosed("</(\\w*)\\s\\s*>");
    int index = -1;
    while (true) {
        index = unclosed.search(contents, index + 1);
        if (index < 0)
            break;
        TQString tag = unclosed.cap(1);
        contents.replace(index, unclosed.matchedLength(), TQString("</%1>").arg(tag));
    }

    TQRegExp start("<((\\s*[^<>\\s])*)\\s\\s*(/*)>");
    start.setMinimal(true);

    index = -1;
    while (true) {
        index = start.search(contents, index + 1);
        if (index < 0)
            break;
        TQString tag = start.cap(1);
	TQString cut = start.capturedTexts().last();
        // tqDebug("UNCLO %s %d -%s- -%s-", start.cap(0).latin1(), index, tag.latin1(), cut.latin1());
        contents.replace(index, start.matchedLength(), TQString("<%1%2>").arg(tag).arg(cut));
    }
    TQRegExp singletag("<(\\w*)\\s([^><]*)/>");

    index = -1;
    while (true) {
        index = singletag.search(contents, index + 1);
        if (index < 0)
            break;
        TQString tag = singletag.cap(1);
        if (!StructureParser::isSingleTag(tag)) {
            contents.replace(index, singletag.matchedLength(), TQString("<%1 %2></%3>").arg(tag).arg(singletag.cap(2)).arg(tag));
        }
    }

    TQRegExp trans_comment("<!-- TRANS:([^<>]*)-->");
    index = -1;
    while (true) {
        index = trans_comment.search(contents, index + 1);
        if (index < 0)
            break;
        TQString msgid = trans_comment.cap(1);
        contents.replace(index, trans_comment.matchedLength(), TQString("<trans_comment>%1</trans_comment>").arg(msgid));
    }

#ifdef POXML_DEBUG
    tqDebug("final  %s", contents.latin1());
#endif

}

static bool removeEmptyTag( TQString &contents, const TQString & tag)
{
//    tqDebug("cont %s %s", contents.latin1(), tag.latin1());

    TQRegExp empty(TQString("<%1[^>]*>[\\s\n][\\s\n]*</%2\\s*>").arg(tag).arg(tag));
    int strindex = 0;
    while (true) {
        strindex = contents.find(empty, strindex);
        if (strindex < 0)
            break;
        tqDebug("found empty tag %s", tag.latin1());
        contents.replace(strindex, empty.matchedLength(), " ");
        strindex++;
        return true;
    }
    return false;
}

void StructureParser::removeEmptyTags( TQString &contents )
{
    bool removed;
    do {
        removed = false;

        for (int index = 0; cuttingtags[index]; index++) {
            if (removeEmptyTag(contents, cuttingtags[index])) {
                removed = true;
                break;
            }
        }
        // as glossterm has two different semantics, it's likely
        // to break something when it's cuttingtag
        if (removeEmptyTag(contents, "glossterm"))
            removed = true;

    } while (removed);
}

bool StructureParser::characters(const TQString &ch)
{
    if (inside && !ch.isEmpty())
        message += ch;
    return true;
}

TQString escape(TQString message)
{
    message.replace(TQRegExp("\\\\"), "\\\\");
    message.replace(TQRegExp("\""), "\\\"");
    return message;
}

void outputMsg(const char *prefix, const TQString &message)
{
    TQStringList list = TQStringList::split('\n', message, true);
    TQString line;

    if (list.count() == 1) {
        line = list.first();
        if (line.isEmpty())
            cout << prefix << " \"\"\n";
        else
            cout << prefix << " \"" << escape(line).utf8().data() << "\"\n";
    } else {
        cout << prefix << " \"\"\n";
        for (TQStringList::ConstIterator it = list.begin(); it != list.end(); it++) {
            line = *it;
            if (!line.isEmpty()) {
                cout << "      \"" << escape(line).utf8().data();
                if (it == list.fromLast())
                    cout << "\"\n";
                else
                    cout << "\\n\"\n";
            } else {
                cout << "      \"";
                if (it != list.fromLast())
                    cout << "\\n";
                cout << "\"\n";
            }
        }
    }
}

TQString escapePO(TQString msgid)
{
    int index = 0;
    while (true) {
        index = msgid.find("\\n", index);
        if (index == -1)
            break;
        if (index >= 1 && msgid.at(index - 1) == '\\' && msgid.at(index - 2) != '\\') {
            msgid.replace(index - 1, 3, "&POXML_LITERALLINEFEED;");
            index += 3;
        } else
            msgid.replace(index, 2, "\n");
    }
    index = 0;
    while (true) {
        index = msgid.find("\\\"", index);
        if (index == -1)
            break;
        if (index > 1 && msgid.at(index - 1) == '\\' && msgid.at(index - 2) != '\\')
            msgid.replace(index - 1, 3, "&POXML_LITERALQUOTE;");
        else
            msgid.replace(index, 2, "\"");
    }
    index = 0;
    while (true) {
        index = msgid.find("\\t", index);
        if (index == -1)
            break;
        if (msgid.at(index - 1) == '\\')
            msgid.replace(index - 1, 3, "\\t");
        else
            msgid.replace(index, 2, "\t");
    }
    index = 0;
    while (true) {
        index = msgid.find("\\\\", index);
        if (index == -1)
            break;
        msgid.replace(index, 2, "\\");
        index += 1;
    }

    msgid.replace(TQRegExp("&POXML_LITERALLINEFEED;"), "\\n");
    msgid.replace(TQRegExp("&POXML_LITERALQUOTE;"), "\\");
    return msgid;
}


MsgList parseXML(const char *filename)
{
    StructureParser handler;
    TQFile xmlFile( filename );
    xmlFile.open(IO_ReadOnly);

    TQCString ccontents;
    ccontents.fill(0, xmlFile.size() + 1);
    memcpy(ccontents.data(), xmlFile.readAll().data(), xmlFile.size());
    xmlFile.close();

    TQString contents = TQString::fromUtf8( ccontents );
    StructureParser::cleanupTags(contents);

    while (true) {
        int index = contents.find("<!ENTITY");
        if (index < 0)
            break;
        int inside = 0;
        int endindex = index + 1;
        TQString replacement = "";
        while (contents.at(endindex) != '>' || inside)
        {
            switch (contents.at(endindex).latin1()) {
                case '<':
                    inside++; break;
                case '>':
                    inside--; break;
                case '\n':
                    replacement += '\n';
                    break;
                default:
                    break;
            }
            endindex++;
        }
        endindex++;
        contents.replace(index, endindex - index, replacement);
    }

    TQTextStream ts(contents.utf8(), IO_ReadOnly);
    TQXmlInputSource source( ts );
    TQXmlSimpleReader reader;
    reader.setFeature( "http://trolltech.com/xml/features/report-start-end-entity", true);
    reader.setContentHandler( &handler );
    reader.setLexicalHandler( &handler );
    reader.setDTDHandler( &handler );
    // reader.setErrorHandler( &handler );
    reader.parse( source );
    MsgList english = handler.getList();

    bool changed = false;

    do {
        changed = false;
        TQMap<TQString, TQString> msgids;

        for (MsgList::Iterator it = english.begin();
             it != english.end(); it++)
        {
            TQMap<TQString,TQString>::Iterator found = msgids.find((*it).msgid);
            if ((*it).msgid.length() < 4) {
                (*it).msgid = TQString("<%1>").arg((*it).tag) + (*it).msgid +
                              TQString("</%1>").arg((*it).tag);
                changed = true;
                break;
            }
            if (found != msgids.end()) {
                if (found.data() != (*it).tag) {
#ifdef POXML_DEBUG
                    tqDebug("same msgid for '%s' and '%s'", found.data().latin1(), (*it).tag.latin1());
#endif
                    changed = true;
                    TQString msgid = (*it).msgid;
                    for (MsgList::Iterator it2 = english.begin();
                         it2 != english.end(); it2++)
                    {
                        if ((*it2).msgid == msgid)
                            (*it2).msgid = TQString("<%1>").arg((*it2).tag) + msgid + TQString("</%1>").arg((*it2).tag);
                    }
                    break;
                }
            } else {
                msgids.insert((*it).msgid, (*it).tag);
            }
        }
    } while (changed);

    return english;
}