summaryrefslogtreecommitdiffstats
path: root/src/corelib/xml/qxmlstream.cpp
blob: 19626af1cf556a172266b38a9ba6d2c0574fa7e5 (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
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "QtCore/qxmlstream.h"

#if defined(QT_BUILD_XML_LIB) && defined(Q_OS_MAC64)
// No need to define this in the 64-bit Mac libraries.
// Since Qt 4.4 and previous weren't supported in 64-bit, there are
// no QXmlStream* symbols to keep compatibility with
# define QT_NO_XMLSTREAM
#endif

#ifndef QT_NO_XMLSTREAM

#include "qxmlutils_p.h"
#include <qdebug.h>
#include <qfile.h>
#include <stdio.h>
#include <qtextcodec.h>
#include <qstack.h>
#include <qbuffer.h>
#ifndef QT_BOOTSTRAPPED
#include <qcoreapplication.h>
#else
// This specialization of Q_DECLARE_TR_FUNCTIONS is not in qcoreapplication.h,
// because that header depends on QObject being available, which is not the
// case for most bootstrapped applications.
#define Q_DECLARE_TR_FUNCTIONS(context) \
public: \
    static inline QString tr(const char *sourceText, const char *comment = 0) \
        { Q_UNUSED(comment); return QString::fromLatin1(sourceText); } \
    static inline QString trUtf8(const char *sourceText, const char *comment = 0) \
        { Q_UNUSED(comment); return QString::fromLatin1(sourceText); } \
    static inline QString tr(const char *sourceText, const char*, int) \
        { return QString::fromLatin1(sourceText); } \
    static inline QString trUtf8(const char *sourceText, const char*, int) \
        { return QString::fromLatin1(sourceText); } \
private:
#endif
QT_BEGIN_NAMESPACE

#include "qxmlstream_p.h"

/*!
    \enum QXmlStreamReader::TokenType

    This enum specifies the type of token the reader just read.

    \value NoToken The reader has not yet read anything.

    \value Invalid An error has occurred, reported in error() and
    errorString().

    \value StartDocument The reader reports the XML version number in
    documentVersion(), and the encoding as specified in the XML
    document in documentEncoding().  If the document is declared
    standalone, isStandaloneDocument() returns true; otherwise it
    returns false.

    \value EndDocument The reader reports the end of the document.

    \value StartElement The reader reports the start of an element
    with namespaceUri() and name(). Empty elements are also reported
    as StartElement, followed directly by EndElement. The convenience
    function readElementText() can be called to concatenate all
    content until the corresponding EndElement. Attributes are
    reported in attributes(), namespace declarations in
    namespaceDeclarations().

    \value EndElement The reader reports the end of an element with
    namespaceUri() and name().

    \value Characters The reader reports characters in text(). If the
    characters are all white-space, isWhitespace() returns true. If
    the characters stem from a CDATA section, isCDATA() returns true.

    \value Comment The reader reports a comment in text().

    \value DTD The reader reports a DTD in text(), notation
    declarations in notationDeclarations(), and entity declarations in
    entityDeclarations(). Details of the DTD declaration are reported
    in in dtdName(), dtdPublicId(), and dtdSystemId().

    \value EntityReference The reader reports an entity reference that
    could not be resolved.  The name of the reference is reported in
    name(), the replacement text in text().

    \value ProcessingInstruction The reader reports a processing
    instruction in processingInstructionTarget() and
    processingInstructionData().
*/

/*!
    \enum QXmlStreamReader::ReadElementTextBehaviour

    This enum specifies the different behaviours of readElementText().

    \value ErrorOnUnexpectedElement Raise an UnexpectedElementError and return
    what was read so far when a child element is encountered.

    \value IncludeChildElements Recursively include the text from child elements.

    \value SkipChildElements Skip child elements.

    \since 4.6
*/

/*!
    \enum QXmlStreamReader::Error

    This enum specifies different error cases

    \value NoError No error has occurred.

    \value CustomError A custom error has been raised with
    raiseError()

    \value NotWellFormedError The parser internally raised an error
    due to the read XML not being well-formed.

    \value PrematureEndOfDocumentError The input stream ended before a
    well-formed XML document was parsed. Recovery from this error is
    possible if more XML arrives in the stream, either by calling
    addData() or by waiting for it to arrive on the device().

    \value UnexpectedElementError The parser encountered an element
    that was different to those it expected.

*/

/*!
  \class QXmlStreamEntityResolver
  \reentrant
  \since 4.4

  \brief The QXmlStreamEntityResolver class provides an entity
  resolver for a QXmlStreamReader.

  \ingroup xml-tools
 */

/*!
  Destroys the entity resolver.
 */
QXmlStreamEntityResolver::~QXmlStreamEntityResolver()
{
}

/*! \internal

This function is a stub for later functionality.
*/
QString QXmlStreamEntityResolver::resolveEntity(const QString& /*publicId*/, const QString& /*systemId*/)
{
    return QString();
}


/*!
  Resolves the undeclared entity \a name and returns its replacement
  text. If the entity is also unknown to the entity resolver, it
  returns an empty string.

  The default implementation always returns an empty string.
*/

QString QXmlStreamEntityResolver::resolveUndeclaredEntity(const QString &/*name*/)
{
    return QString();
}

#ifndef QT_NO_XMLSTREAMREADER

QString QXmlStreamReaderPrivate::resolveUndeclaredEntity(const QString &name)
{
    if (entityResolver)
        return entityResolver->resolveUndeclaredEntity(name);
    return QString();
}



/*!
   \since 4.4

   Makes \a resolver the new entityResolver().

   The stream reader does \e not take ownership of the resolver. It's
   the callers responsibility to ensure that the resolver is valid
   during the entire life-time of the stream reader object, or until
   another resolver or 0 is set.

   \sa entityResolver()
 */
void QXmlStreamReader::setEntityResolver(QXmlStreamEntityResolver *resolver)
{
    Q_D(QXmlStreamReader);
    d->entityResolver = resolver;
}

/*!
  \since 4.4

  Returns the entity resolver, or 0 if there is no entity resolver.

  \sa setEntityResolver()
 */
QXmlStreamEntityResolver *QXmlStreamReader::entityResolver() const
{
    Q_D(const QXmlStreamReader);
    return d->entityResolver;
}



/*!
  \class QXmlStreamReader
  \reentrant
  \since 4.3

  \brief The QXmlStreamReader class provides a fast parser for reading
  well-formed XML via a simple streaming API.


  \ingroup xml-tools

  QXmlStreamReader is a faster and more convenient replacement for
  Qt's own SAX parser (see QXmlSimpleReader). In some cases it might
  also be a faster and more convenient alternative for use in
  applications that would otherwise use a DOM tree (see QDomDocument).
  QXmlStreamReader reads data either from a QIODevice (see
  setDevice()), or from a raw QByteArray (see addData()).

  Qt provides QXmlStreamWriter for writing XML.

  The basic concept of a stream reader is to report an XML document as
  a stream of tokens, similar to SAX. The main difference between
  QXmlStreamReader and SAX is \e how these XML tokens are reported.
  With SAX, the application must provide handlers (callback functions)
  that receive so-called XML \e events from the parser at the parser's
  convenience.  With QXmlStreamReader, the application code itself
  drives the loop and pulls \e tokens from the reader, one after
  another, as it needs them. This is done by calling readNext(), where
  the reader reads from the input stream until it completes the next
  token, at which point it returns the tokenType(). A set of
  convenient functions including isStartElement() and text() can then
  be used to examine the token to obtain information about what has
  been read. The big advantage of this \e pulling approach is the
  possibility to build recursive descent parsers with it, meaning you
  can split your XML parsing code easily into different methods or
  classes. This makes it easy to keep track of the application's own
  state when parsing XML.

  A typical loop with QXmlStreamReader looks like this:

  \snippet doc/src/snippets/code/src_corelib_xml_qxmlstream.cpp 0


  QXmlStreamReader is a well-formed XML 1.0 parser that does \e not
  include external parsed entities. As long as no error occurs, the
  application code can thus be assured that the data provided by the
  stream reader satisfies the W3C's criteria for well-formed XML. For
  example, you can be certain that all tags are indeed nested and
  closed properly, that references to internal entities have been
  replaced with the correct replacement text, and that attributes have
  been normalized or added according to the internal subset of the
  DTD.

  If an error occurs while parsing, atEnd() and hasError() return
  true, and error() returns the error that occurred. The functions
  errorString(), lineNumber(), columnNumber(), and characterOffset()
  are for constructing an appropriate error or warning message. To
  simplify application code, QXmlStreamReader contains a raiseError()
  mechanism that lets you raise custom errors that trigger the same
  error handling described.

  The \l{QXmlStream Bookmarks Example} illustrates how to use the
  recursive descent technique to read an XML bookmark file (XBEL) with
  a stream reader.

  \section1 Namespaces

  QXmlStream understands and resolves XML namespaces. E.g. in case of
  a StartElement, namespaceUri() returns the namespace the element is
  in, and name() returns the element's \e local name. The combination
  of namespaceUri and name uniquely identifies an element. If a
  namespace prefix was not declared in the XML entities parsed by the
  reader, the namespaceUri is empty.

  If you parse XML data that does not utilize namespaces according to
  the XML specification or doesn't use namespaces at all, you can use
  the element's qualifiedName() instead. A qualified name is the
  element's prefix() followed by colon followed by the element's local
  name() - exactly like the element appears in the raw XML data. Since
  the mapping namespaceUri to prefix is neither unique nor universal,
  qualifiedName() should be avoided for namespace-compliant XML data.

  In order to parse standalone documents that do use undeclared
  namespace prefixes, you can turn off namespace processing completely
  with the \l namespaceProcessing property.

  \section1 Incremental parsing

  QXmlStreamReader is an incremental parser. It can handle the case
  where the document can't be parsed all at once because it arrives in
  chunks (e.g. from multiple files, or over a network connection).
  When the reader runs out of data before the complete document has
  been parsed, it reports a PrematureEndOfDocumentError. When more
  data arrives, either because of a call to addData() or because more
  data is available through the network device(), the reader recovers
  from the PrematureEndOfDocumentError error and continues parsing the
  new data with the next call to readNext().

  For example, if your application reads data from the network using a
  \l{QNetworkAccessManager} {network access manager}, you would issue
  a \l{QNetworkRequest} {network request} to the manager and receive a
  \l{QNetworkReply} {network reply} in return. Since a QNetworkReply
  is a QIODevice, you connect its \l{QNetworkReply::readyRead()}
  {readyRead()} signal to a custom slot, e.g. \c{slotReadyRead()} in
  the code snippet shown in the discussion for QNetworkAccessManager.
  In this slot, you read all available data with
  \l{QNetworkReply::readAll()} {readAll()} and pass it to the XML
  stream reader using addData(). Then you call your custom parsing
  function that reads the XML events from the reader.

  \section1 Performance and memory consumption

  QXmlStreamReader is memory-conservative by design, since it doesn't
  store the entire XML document tree in memory, but only the current
  token at the time it is reported. In addition, QXmlStreamReader
  avoids the many small string allocations that it normally takes to
  map an XML document to a convenient and Qt-ish API. It does this by
  reporting all string data as QStringRef rather than real QString
  objects. QStringRef is a thin wrapper around QString substrings that
  provides a subset of the QString API without the memory allocation
  and reference-counting overhead. Calling
  \l{QStringRef::toString()}{toString()} on any of those objects
  returns an equivalent real QString object.

*/


/*!
  Constructs a stream reader.

  \sa setDevice(), addData()
 */
QXmlStreamReader::QXmlStreamReader()
    : d_ptr(new QXmlStreamReaderPrivate(this))
{
}

/*!  Creates a new stream reader that reads from \a device.

\sa setDevice(), clear()
 */
QXmlStreamReader::QXmlStreamReader(QIODevice *device)
    : d_ptr(new QXmlStreamReaderPrivate(this))
{
    setDevice(device);
}

/*!
  Creates a new stream reader that reads from \a data.

  \sa addData(), clear(), setDevice()
 */
QXmlStreamReader::QXmlStreamReader(const QByteArray &data)
    : d_ptr(new QXmlStreamReaderPrivate(this))
{
    Q_D(QXmlStreamReader);
    d->dataBuffer = data;
}

/*!
  Creates a new stream reader that reads from \a data.

  \sa addData(), clear(), setDevice()
 */
QXmlStreamReader::QXmlStreamReader(const QString &data)
    : d_ptr(new QXmlStreamReaderPrivate(this))
{
    Q_D(QXmlStreamReader);
#ifdef QT_NO_TEXTCODEC
    d->dataBuffer = data.toLatin1();
#else
    d->dataBuffer = d->codec->fromUnicode(data);
    d->decoder = d->codec->makeDecoder();
#endif
    d->lockEncoding = true;

}

/*!
  Creates a new stream reader that reads from \a data.

  \sa addData(), clear(), setDevice()
 */
QXmlStreamReader::QXmlStreamReader(const char *data)
    : d_ptr(new QXmlStreamReaderPrivate(this))
{
    Q_D(QXmlStreamReader);
    d->dataBuffer = QByteArray(data);
}

/*!
  Destructs the reader.
 */
QXmlStreamReader::~QXmlStreamReader()
{
    Q_D(QXmlStreamReader);
    if (d->deleteDevice)
        delete d->device;
}

/*! \fn bool QXmlStreamReader::hasError() const
    Returns \c true if an error has occurred, otherwise \c false.

    \sa errorString(), error()
 */

/*!
    Sets the current device to \a device. Setting the device resets
    the stream to its initial state.

    \sa device(), clear()
*/
void QXmlStreamReader::setDevice(QIODevice *device)
{
    Q_D(QXmlStreamReader);
    if (d->deleteDevice) {
        delete d->device;
        d->deleteDevice = false;
    }
    d->device = device;
    d->init();

}

/*!
    Returns the current device associated with the QXmlStreamReader,
    or 0 if no device has been assigned.

    \sa setDevice()
*/
QIODevice *QXmlStreamReader::device() const
{
    Q_D(const QXmlStreamReader);
    return d->device;
}


/*!
  Adds more \a data for the reader to read. This function does
  nothing if the reader has a device().

  \sa readNext(), clear()
 */
void QXmlStreamReader::addData(const QByteArray &data)
{
    Q_D(QXmlStreamReader);
    if (d->device) {
        qWarning("QXmlStreamReader: addData() with device()");
        return;
    }
    d->dataBuffer += data;
}

/*!
  Adds more \a data for the reader to read. This function does
  nothing if the reader has a device().

  \sa readNext(), clear()
 */
void QXmlStreamReader::addData(const QString &data)
{
    Q_D(QXmlStreamReader);
    d->lockEncoding = true;
#ifdef QT_NO_TEXTCODEC
    addData(data.toLatin1());
#else
    addData(d->codec->fromUnicode(data));
#endif
}

/*!
  Adds more \a data for the reader to read. This function does
  nothing if the reader has a device().

  \sa readNext(), clear()
 */
void QXmlStreamReader::addData(const char *data)
{
    addData(QByteArray(data));
}

/*!
    Removes any device() or data from the reader and resets its
    internal state to the initial state.

    \sa addData()
 */
void QXmlStreamReader::clear()
{
    Q_D(QXmlStreamReader);
    d->init();
    if (d->device) {
        if (d->deleteDevice)
            delete d->device;
        d->device = 0;
    }
}

/*!
    Returns true if the reader has read until the end of the XML
    document, or if an error() has occurred and reading has been
    aborted. Otherwise, it returns false.

    When atEnd() and hasError() return true and error() returns
    PrematureEndOfDocumentError, it means the XML has been well-formed
    so far, but a complete XML document has not been parsed. The next
    chunk of XML can be added with addData(), if the XML is being read
    from a QByteArray, or by waiting for more data to arrive if the
    XML is being read from a QIODevice. Either way, atEnd() will
    return false once more data is available.

    \sa hasError(), error(), device(), QIODevice::atEnd()
 */
bool QXmlStreamReader::atEnd() const
{
    Q_D(const QXmlStreamReader);
    if (d->atEnd
        && ((d->type == QXmlStreamReader::Invalid && d->error == PrematureEndOfDocumentError)
            || (d->type == QXmlStreamReader::EndDocument))) {
        if (d->device)
            return d->device->atEnd();
        else
            return !d->dataBuffer.size();
    }
    return (d->atEnd || d->type == QXmlStreamReader::Invalid);
}


/*!
  Reads the next token and returns its type.

  With one exception, once an error() is reported by readNext(),
  further reading of the XML stream is not possible. Then atEnd()
  returns true, hasError() returns true, and this function returns
  QXmlStreamReader::Invalid.

  The exception is when error() returns PrematureEndOfDocumentError.
  This error is reported when the end of an otherwise well-formed
  chunk of XML is reached, but the chunk doesn't represent a complete
  XML document.  In that case, parsing \e can be resumed by calling
  addData() to add the next chunk of XML, when the stream is being
  read from a QByteArray, or by waiting for more data to arrive when
  the stream is being read from a device().

  \sa tokenType(), tokenString()
 */
QXmlStreamReader::TokenType QXmlStreamReader::readNext()
{
    Q_D(QXmlStreamReader);
    if (d->type != Invalid) {
        if (!d->hasCheckedStartDocument)
            if (!d->checkStartDocument())
                return d->type; // synthetic StartDocument or error
        d->parse();
        if (d->atEnd && d->type != EndDocument && d->type != Invalid)
            d->raiseError(PrematureEndOfDocumentError);
        else if (!d->atEnd && d->type == EndDocument)
            d->raiseWellFormedError(QXmlStream::tr("Extra content at end of document."));
    } else if (d->error == PrematureEndOfDocumentError) {
        // resume error
        d->type = NoToken;
        d->atEnd = false;
        d->token = -1;
        return readNext();
    }
    return d->type;
}


/*!
  Returns the type of the current token.

  The current token can also be queried with the convenience functions
  isStartDocument(), isEndDocument(), isStartElement(),
  isEndElement(), isCharacters(), isComment(), isDTD(),
  isEntityReference(), and isProcessingInstruction().

  \sa tokenString()
 */
QXmlStreamReader::TokenType QXmlStreamReader::tokenType() const
{
    Q_D(const QXmlStreamReader);
    return d->type;
}

/*!
  Reads until the next start element within the current element. Returns true
  when a start element was reached. When the end element was reached, or when
  an error occurred, false is returned.

  The current element is the element matching the most recently parsed start
  element of which a matching end element has not yet been reached. When the
  parser has reached the end element, the current element becomes the parent
  element.

  This is a convenience function for when you're only concerned with parsing
  XML elements. The \l{QXmlStream Bookmarks Example} makes extensive use of
  this function.

  \since 4.6
  \sa readNext()
 */
bool QXmlStreamReader::readNextStartElement()
{
    while (readNext() != Invalid) {
        if (isEndElement())
            return false;
        else if (isStartElement())
            return true;
    }
    return false;
}

/*!
  Reads until the end of the current element, skipping any child nodes.
  This function is useful for skipping unknown elements.

  The current element is the element matching the most recently parsed start
  element of which a matching end element has not yet been reached. When the
  parser has reached the end element, the current element becomes the parent
  element.

  \since 4.6
 */
void QXmlStreamReader::skipCurrentElement()
{
    int depth = 1;
    while (depth && readNext() != Invalid) {
        if (isEndElement())
            --depth;
        else if (isStartElement())
            ++depth;
    }
}

/*
 * Use the following Perl script to generate the error string index list:
===== PERL SCRIPT ====
print "static const char QXmlStreamReader_tokenTypeString_string[] =\n";
$counter = 0;
$i = 0;
while (<STDIN>) {
    chomp;
    print "    \"$_\\0\"\n";
    $sizes[$i++] = $counter;
    $counter += length 1 + $_;
}
print "    \"\\0\";\n\nstatic const short QXmlStreamReader_tokenTypeString_indices[] = {\n    ";
for ($j = 0; $j < $i; ++$j) {
    printf "$sizes[$j], ";
}
print "0\n};\n";
===== PERL SCRIPT ====

 * The input data is as follows (copied from qxmlstream.h):
NoToken
Invalid
StartDocument
EndDocument
StartElement
EndElement
Characters
Comment
DTD
EntityReference
ProcessingInstruction
*/
static const char QXmlStreamReader_tokenTypeString_string[] =
    "NoToken\0"
    "Invalid\0"
    "StartDocument\0"
    "EndDocument\0"
    "StartElement\0"
    "EndElement\0"
    "Characters\0"
    "Comment\0"
    "DTD\0"
    "EntityReference\0"
    "ProcessingInstruction\0";

static const short QXmlStreamReader_tokenTypeString_indices[] = {
    0, 8, 16, 30, 42, 55, 66, 77, 85, 89, 105, 0
};


/*!
    \property  QXmlStreamReader::namespaceProcessing
    the namespace-processing flag of the stream reader

    This property controls whether or not the stream reader processes
    namespaces. If enabled, the reader processes namespaces, otherwise
    it does not.

    By default, namespace-processing is enabled.
*/


void QXmlStreamReader::setNamespaceProcessing(bool enable)
{
    Q_D(QXmlStreamReader);
    d->namespaceProcessing = enable;
}

bool QXmlStreamReader::namespaceProcessing() const
{
    Q_D(const QXmlStreamReader);
    return d->namespaceProcessing;
}

/*! Returns the reader's current token as string.

\sa tokenType()
*/
QString QXmlStreamReader::tokenString() const
{
    Q_D(const QXmlStreamReader);
    return QLatin1String(QXmlStreamReader_tokenTypeString_string +
                         QXmlStreamReader_tokenTypeString_indices[d->type]);
}

#endif // QT_NO_XMLSTREAMREADER

QXmlStreamPrivateTagStack::QXmlStreamPrivateTagStack()
{
    tagStack.reserve(16);
    tagStackStringStorage.reserve(32);
    tagStackStringStorageSize = 0;
    NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.push();
    namespaceDeclaration.prefix = addToStringStorage(QLatin1String("xml"));
    namespaceDeclaration.namespaceUri = addToStringStorage(QLatin1String("http://www.w3.org/XML/1998/namespace"));
}

#ifndef QT_NO_XMLSTREAMREADER

QXmlStreamReaderPrivate::QXmlStreamReaderPrivate(QXmlStreamReader *q)
    :q_ptr(q)
{
    device = 0;
    deleteDevice = false;
#ifndef QT_NO_TEXTCODEC
    decoder = 0;
#endif
    stack_size = 64;
    sym_stack = 0;
    state_stack = 0;
    reallocateStack();
    entityResolver = 0;
    init();
    entityHash.insert(QLatin1String("lt"), Entity::createLiteral(QLatin1String("<")));
    entityHash.insert(QLatin1String("gt"), Entity::createLiteral(QLatin1String(">")));
    entityHash.insert(QLatin1String("amp"), Entity::createLiteral(QLatin1String("&")));
    entityHash.insert(QLatin1String("apos"), Entity::createLiteral(QLatin1String("'")));
    entityHash.insert(QLatin1String("quot"), Entity::createLiteral(QLatin1String("\"")));
}

void QXmlStreamReaderPrivate::init()
{
    tos = 0;
    scanDtd = false;
    token = -1;
    token_char = 0;
    isEmptyElement = false;
    isWhitespace = true;
    isCDATA = false;
    standalone = false;
    tos = 0;
    resumeReduction = 0;
    state_stack[tos++] = 0;
    state_stack[tos] = 0;
    putStack.clear();
    putStack.reserve(32);
    textBuffer.clear();
    textBuffer.reserve(256);
    tagStack.clear();
    tagsDone = false;
    attributes.clear();
    attributes.reserve(16);
    lineNumber = lastLineStart = characterOffset = 0;
    readBufferPos = 0;
    nbytesread = 0;
#ifndef QT_NO_TEXTCODEC
    codec = QTextCodec::codecForMib(106); // utf8
    delete decoder;
    decoder = 0;
#endif
    attributeStack.clear();
    attributeStack.reserve(16);
    entityParser = 0;
    hasCheckedStartDocument = false;
    normalizeLiterals = false;
    hasSeenTag = false;
    atEnd = false;
    inParseEntity = false;
    referenceToUnparsedEntityDetected = false;
    referenceToParameterEntityDetected = false;
    hasExternalDtdSubset = false;
    lockEncoding = false;
    namespaceProcessing = true;
    rawReadBuffer.clear();
    dataBuffer.clear();
    readBuffer.clear();

    type = QXmlStreamReader::NoToken;
    error = QXmlStreamReader::NoError;
}

/*
  Well-formed requires that we verify entity values. We do this with a
  standard parser.
 */
void QXmlStreamReaderPrivate::parseEntity(const QString &value)
{
    Q_Q(QXmlStreamReader);

    if (value.isEmpty())
        return;


    if (!entityParser)
        entityParser = new QXmlStreamReaderPrivate(q);
    else
        entityParser->init();
    entityParser->inParseEntity = true;
    entityParser->readBuffer = value;
    entityParser->injectToken(PARSE_ENTITY);
    while (!entityParser->atEnd && entityParser->type != QXmlStreamReader::Invalid)
        entityParser->parse();
    if (entityParser->type == QXmlStreamReader::Invalid || entityParser->tagStack.size())
        raiseWellFormedError(QXmlStream::tr("Invalid entity value."));

}

inline void QXmlStreamReaderPrivate::reallocateStack()
{
    stack_size <<= 1;
    sym_stack = reinterpret_cast<Value*> (qRealloc(sym_stack, stack_size * sizeof(Value)));
    Q_CHECK_PTR(sym_stack);
    state_stack = reinterpret_cast<int*> (qRealloc(state_stack, stack_size * sizeof(int)));
    Q_CHECK_PTR(sym_stack);
}


QXmlStreamReaderPrivate::~QXmlStreamReaderPrivate()
{
#ifndef QT_NO_TEXTCODEC
    delete decoder;
#endif
    qFree(sym_stack);
    qFree(state_stack);
    delete entityParser;
}


inline uint QXmlStreamReaderPrivate::filterCarriageReturn()
{
    uint peekc = peekChar();
    if (peekc == '\n') {
        if (putStack.size())
            putStack.pop();
        else
            ++readBufferPos;
        return peekc;
    }
    if (peekc == 0) {
        putChar('\r');
        return 0;
    }
    return '\n';
}

/*!
 \internal
 If the end of the file is encountered, 0 is returned.
 */
inline uint QXmlStreamReaderPrivate::getChar()
{
    uint c;
    if (putStack.size()) {
        c = atEnd ? 0 : putStack.pop();
    } else {
        if (readBufferPos < readBuffer.size())
            c = readBuffer.at(readBufferPos++).unicode();
        else
            c = getChar_helper();
    }

    return c;
}

inline uint QXmlStreamReaderPrivate::peekChar()
{
    uint c;
    if (putStack.size()) {
        c = putStack.top();
    } else if (readBufferPos < readBuffer.size()) {
        c = readBuffer.at(readBufferPos).unicode();
    } else {
        if ((c = getChar_helper()))
            --readBufferPos;
    }

    return c;
}

/*!
  \internal

  Scans characters until \a str is encountered, and validates the characters
  as according to the Char[2] production and do the line-ending normalization.
  If any character is invalid, false is returned, otherwise true upon success.

  If \a tokenToInject is not less than zero, injectToken() is called with
  \a tokenToInject when \a str is found.

  If any error occurred, false is returned, otherwise true.
  */
bool QXmlStreamReaderPrivate::scanUntil(const char *str, short tokenToInject)
{
    int pos = textBuffer.size();
    int oldLineNumber = lineNumber;

    while (uint c = getChar()) {
        /* First, we do the validation & normalization. */
        switch (c) {
        case '\r':
            if ((c = filterCarriageReturn()) == 0)
                break;
            // fall through
        case '\n':
            ++lineNumber;
            lastLineStart = characterOffset + readBufferPos;
            // fall through
        case '\t':
            textBuffer += QChar(c);
            continue;
        default:
            if(c < 0x20 || (c > 0xFFFD && c < 0x10000) || c > 0x10FFFF ) {
                raiseWellFormedError(QXmlStream::tr("Invalid XML character."));
                lineNumber = oldLineNumber;
                return false;
            }
            textBuffer += QChar(c);
        }


        /* Second, attempt to lookup str. */
        if (c == uint(*str)) {
            if (!*(str + 1)) {
                if (tokenToInject >= 0)
                    injectToken(tokenToInject);
                return true;
            } else {
                if (scanString(str + 1, tokenToInject, false))
                    return true;
            }
        }
    }
    putString(textBuffer, pos);
    textBuffer.resize(pos);
    lineNumber = oldLineNumber;
    return false;
}

bool QXmlStreamReaderPrivate::scanString(const char *str, short tokenToInject, bool requireSpace)
{
    int n = 0;
    while (str[n]) {
        ushort c = getChar();
        if (c != ushort(str[n])) {
            if (c)
                putChar(c);
            while (n--) {
                putChar(ushort(str[n]));
            }
            return false;
        }
        ++n;
    }
    for (int i = 0; i < n; ++i)
        textBuffer += QChar(ushort(str[i]));
    if (requireSpace) {
        int s = fastScanSpace();
        if (!s || atEnd) {
            int pos = textBuffer.size() - n - s;
            putString(textBuffer, pos);
            textBuffer.resize(pos);
            return false;
        }
    }
    if (tokenToInject >= 0)
        injectToken(tokenToInject);
    return true;
}

bool QXmlStreamReaderPrivate::scanAfterLangleBang()
{
    switch (peekChar()) {
    case '[':
        return scanString(spell[CDATA_START], CDATA_START, false);
    case 'D':
        return scanString(spell[DOCTYPE], DOCTYPE);
    case 'A':
        return scanString(spell[ATTLIST], ATTLIST);
    case 'N':
        return scanString(spell[NOTATION], NOTATION);
    case 'E':
        if (scanString(spell[ELEMENT], ELEMENT))
            return true;
        return scanString(spell[ENTITY], ENTITY);

    default:
        ;
    };
    return false;
}

bool QXmlStreamReaderPrivate::scanPublicOrSystem()
{
    switch (peekChar()) {
    case 'S':
        return scanString(spell[SYSTEM], SYSTEM);
    case 'P':
        return scanString(spell[PUBLIC], PUBLIC);
    default:
        ;
    }
    return false;
}

bool QXmlStreamReaderPrivate::scanNData()
{
    if (fastScanSpace()) {
        if (scanString(spell[NDATA], NDATA))
            return true;
        putChar(' ');
    }
    return false;
}

bool QXmlStreamReaderPrivate::scanAfterDefaultDecl()
{
    switch (peekChar()) {
    case 'R':
        return scanString(spell[REQUIRED], REQUIRED, false);
    case 'I':
        return scanString(spell[IMPLIED], IMPLIED, false);
    case 'F':
        return scanString(spell[FIXED], FIXED, false);
    default:
        ;
    }
    return false;
}

bool QXmlStreamReaderPrivate::scanAttType()
{
    switch (peekChar()) {
    case 'C':
        return scanString(spell[CDATA], CDATA);
    case 'I':
        if (scanString(spell[ID], ID))
            return true;
        if (scanString(spell[IDREF], IDREF))
            return true;
        return scanString(spell[IDREFS], IDREFS);
    case 'E':
        if (scanString(spell[ENTITY], ENTITY))
            return true;
        return scanString(spell[ENTITIES], ENTITIES);
    case 'N':
        if (scanString(spell[NOTATION], NOTATION))
            return true;
        if (scanString(spell[NMTOKEN], NMTOKEN))
            return true;
        return scanString(spell[NMTOKENS], NMTOKENS);
    default:
        ;
    }
    return false;
}

/*!
 \internal

 Scan strings with quotes or apostrophes surround them. For instance,
 attributes, the version and encoding field in the XML prolog and
 entity declarations.

 If normalizeLiterals is set to true, the function also normalizes
 whitespace. It is set to true when the first start tag is
 encountered.

 */
inline int QXmlStreamReaderPrivate::fastScanLiteralContent()
{
    int n = 0;
    uint c;
    while ((c = getChar())) {
        switch (ushort(c)) {
        case 0xfffe:
        case 0xffff:
        case 0:
            /* The putChar() call is necessary so the parser re-gets
             * the character from the input source, when raising an error. */
            putChar(c);
            return n;
        case '\r':
            if (filterCarriageReturn() == 0)
                return n;
            // fall through
        case '\n':
            ++lineNumber;
            lastLineStart = characterOffset + readBufferPos;
            // fall through
        case ' ':
        case '\t':
            if (normalizeLiterals)
                textBuffer += QLatin1Char(' ');
            else
                textBuffer += QChar(c);
            ++n;
            break;
        case '&':
        case '<':
        case '\"':
        case '\'':
            if (!(c & 0xff0000)) {
                putChar(c);
                return n;
            }
            // fall through
        default:
            textBuffer += QChar(c);
            ++n;
        }
    }
    return n;
}

inline int QXmlStreamReaderPrivate::fastScanSpace()
{
    int n = 0;
    ushort c;
    while ((c = getChar())) {
        switch (c) {
        case '\r':
            if ((c = filterCarriageReturn()) == 0)
                return n;
            // fall through
        case '\n':
            ++lineNumber;
            lastLineStart = characterOffset + readBufferPos;
            // fall through
        case ' ':
        case '\t':
            textBuffer += QChar(c);
            ++n;
            break;
        default:
            putChar(c);
            return n;
        }
    }
    return n;
}

/*!
  \internal

  Used for text nodes essentially. That is, characters appearing
  inside elements.
 */
inline int QXmlStreamReaderPrivate::fastScanContentCharList()
{
    int n = 0;
    uint c;
    while ((c = getChar())) {
        switch (ushort(c)) {
        case 0xfffe:
        case 0xffff:
        case 0:
            putChar(c);
            return n;
        case ']': {
            isWhitespace = false;
            int pos = textBuffer.size();
            textBuffer += QChar(ushort(c));
            ++n;
            while ((c = getChar()) == ']') {
                textBuffer += QChar(ushort(c));
                ++n;
            }
            if (c == 0) {
                putString(textBuffer, pos);
                textBuffer.resize(pos);
            } else if (c == '>' && textBuffer.at(textBuffer.size()-2) == QLatin1Char(']')) {
                raiseWellFormedError(QXmlStream::tr("Sequence ']]>' not allowed in content."));
            } else {
                putChar(c);
                break;
            }
            return n;
        } break;
        case '\r':
            if ((c = filterCarriageReturn()) == 0)
                return n;
            // fall through
        case '\n':
            ++lineNumber;
            lastLineStart = characterOffset + readBufferPos;
            // fall through
        case ' ':
        case '\t':
            textBuffer += QChar(ushort(c));
            ++n;
            break;
        case '&':
        case '<':
            if (!(c & 0xff0000)) {
                putChar(c);
                return n;
            }
            // fall through
        default:
            if (c < 0x20) {
                putChar(c);
                return n;
            }
            isWhitespace = false;
            textBuffer += QChar(ushort(c));
            ++n;
        }
    }
    return n;
}

inline int QXmlStreamReaderPrivate::fastScanName(int *prefix)
{
    int n = 0;
    ushort c;
    while ((c = getChar())) {
        switch (c) {
        case '\n':
        case ' ':
        case '\t':
        case '\r':
        case '&':
        case '#':
        case '\'':
        case '\"':
        case '<':
        case '>':
        case '[':
        case ']':
        case '=':
        case '%':
        case '/':
        case ';':
        case '?':
        case '!':
        case '^':
        case '|':
        case ',':
        case '(':
        case ')':
        case '+':
        case '*':
            putChar(c);
            if (prefix && *prefix == n+1) {
                *prefix = 0;
                putChar(':');
                --n;
            }
            return n;
        case ':':
            if (prefix) {
                if (*prefix == 0) {
                    *prefix = n+2;
                } else { // only one colon allowed according to the namespace spec.
                    putChar(c);
                    return n;
                }
            } else {
                putChar(c);
                return n;
            }
            // fall through
        default:
            textBuffer += QChar(c);
            ++n;
        }
    }

    if (prefix)
        *prefix = 0;
    int pos = textBuffer.size() - n;
    putString(textBuffer, pos);
    textBuffer.resize(pos);
    return 0;
}

enum NameChar { NameBeginning, NameNotBeginning, NotName };

static const char Begi = static_cast<char>(NameBeginning);
static const char NtBg = static_cast<char>(NameNotBeginning);
static const char NotN = static_cast<char>(NotName);

static const char nameCharTable[128] =
{
// 0x00
    NotN, NotN, NotN, NotN, NotN, NotN, NotN, NotN,
    NotN, NotN, NotN, NotN, NotN, NotN, NotN, NotN,
// 0x10
    NotN, NotN, NotN, NotN, NotN, NotN, NotN, NotN,
    NotN, NotN, NotN, NotN, NotN, NotN, NotN, NotN,
// 0x20 (0x2D is '-', 0x2E is '.')
    NotN, NotN, NotN, NotN, NotN, NotN, NotN, NotN,
    NotN, NotN, NotN, NotN, NotN, NtBg, NtBg, NotN,
// 0x30 (0x30..0x39 are '0'..'9', 0x3A is ':')
    NtBg, NtBg, NtBg, NtBg, NtBg, NtBg, NtBg, NtBg,
    NtBg, NtBg, Begi, NotN, NotN, NotN, NotN, NotN,
// 0x40 (0x41..0x5A are 'A'..'Z')
    NotN, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
    Begi, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
// 0x50 (0x5F is '_')
    Begi, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
    Begi, Begi, Begi, NotN, NotN, NotN, NotN, Begi,
// 0x60 (0x61..0x7A are 'a'..'z')
    NotN, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
    Begi, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
// 0x70
    Begi, Begi, Begi, Begi, Begi, Begi, Begi, Begi,
    Begi, Begi, Begi, NotN, NotN, NotN, NotN, NotN
};

static inline NameChar fastDetermineNameChar(QChar ch)
{
    ushort uc = ch.unicode();
    if (!(uc & ~0x7f)) // uc < 128
        return static_cast<NameChar>(nameCharTable[uc]);

    QChar::Category cat = ch.category();
    // ### some these categories might be slightly wrong
    if ((cat >= QChar::Letter_Uppercase && cat <= QChar::Letter_Other)
        || cat == QChar::Number_Letter)
        return NameBeginning;
    if ((cat >= QChar::Number_DecimalDigit && cat <= QChar::Number_Other)
                || (cat >= QChar::Mark_NonSpacing && cat <= QChar::Mark_Enclosing))
        return NameNotBeginning;
    return NotName;
}

inline int QXmlStreamReaderPrivate::fastScanNMTOKEN()
{
    int n = 0;
    uint c;
    while ((c = getChar())) {
        if (fastDetermineNameChar(c) == NotName) {
            putChar(c);
            return n;
        } else {
            ++n;
            textBuffer += QChar(c);
        }
    }

    int pos = textBuffer.size() - n;
    putString(textBuffer, pos);
    textBuffer.resize(pos);

    return n;
}

void QXmlStreamReaderPrivate::putString(const QString &s, int from)
{
    putStack.reserve(s.size());
    for (int i = s.size()-1; i >= from; --i)
        putStack.rawPush() = s.at(i).unicode();
}

void QXmlStreamReaderPrivate::putStringLiteral(const QString &s)
{
    putStack.reserve(s.size());
    for (int i = s.size()-1; i >= 0; --i)
        putStack.rawPush() = ((LETTER << 16) | s.at(i).unicode());
}

void QXmlStreamReaderPrivate::putReplacement(const QString &s)
{
    putStack.reserve(s.size());
    for (int i = s.size()-1; i >= 0; --i) {
        ushort c = s.at(i).unicode();
        if (c == '\n' || c == '\r')
            putStack.rawPush() = ((LETTER << 16) | c);
        else
            putStack.rawPush() = c;
    }
}
void QXmlStreamReaderPrivate::putReplacementInAttributeValue(const QString &s)
{
    putStack.reserve(s.size());
    for (int i = s.size()-1; i >= 0; --i) {
        ushort c = s.at(i).unicode();
        if (c == '&' || c == ';')
            putStack.rawPush() = c;
        else if (c == '\n' || c == '\r')
            putStack.rawPush() = ' ';
        else
            putStack.rawPush() = ((LETTER << 16) | c);
    }
}

ushort QXmlStreamReaderPrivate::getChar_helper()
{
    const int BUFFER_SIZE = 8192;
    characterOffset += readBufferPos;
    readBufferPos = 0;
    readBuffer.resize(0);
#ifndef QT_NO_TEXTCODEC
    if (decoder)
#endif
        nbytesread = 0;
    if (device) {
        rawReadBuffer.resize(BUFFER_SIZE);
        int nbytesreadOrMinus1 = device->read(rawReadBuffer.data() + nbytesread, BUFFER_SIZE - nbytesread);
        nbytesread += qMax(nbytesreadOrMinus1, 0);
    } else {
        if (nbytesread)
            rawReadBuffer += dataBuffer;
        else
            rawReadBuffer = dataBuffer;
        nbytesread = rawReadBuffer.size();
        dataBuffer.clear();
    }
    if (!nbytesread) {
        atEnd = true;
        return 0;
    }

#ifndef QT_NO_TEXTCODEC
    if (!decoder) {
        if (nbytesread < 4) { // the 4 is to cover 0xef 0xbb 0xbf plus
                              // one extra for the utf8 codec
            atEnd = true;
            return 0;
        }
        int mib = 106; // UTF-8

        // look for byte order mark
        uchar ch1 = rawReadBuffer.at(0);
        uchar ch2 = rawReadBuffer.at(1);
        uchar ch3 = rawReadBuffer.at(2);
        uchar ch4 = rawReadBuffer.at(3);

        if ((ch1 == 0 && ch2 == 0 && ch3 == 0xfe && ch4 == 0xff) ||
            (ch1 == 0xff && ch2 == 0xfe && ch3 == 0 && ch4 == 0))
            mib = 1017; // UTF-32 with byte order mark
        else if (ch1 == 0x3c && ch2 == 0x00 && ch3 == 0x00 && ch4 == 0x00)
            mib = 1019; // UTF-32LE
        else if (ch1 == 0x00 && ch2 == 0x00 && ch3 == 0x00 && ch4 == 0x3c)
            mib = 1018; // UTF-32BE
        else if ((ch1 == 0xfe && ch2 == 0xff) || (ch1 == 0xff && ch2 == 0xfe))
            mib = 1015; // UTF-16 with byte order mark
        else if (ch1 == 0x3c && ch2 == 0x00)
            mib = 1014; // UTF-16LE
        else if (ch1 == 0x00 && ch2 == 0x3c)
            mib = 1013; // UTF-16BE
        codec = QTextCodec::codecForMib(mib);
        Q_ASSERT(codec);
        decoder = codec->makeDecoder();
    }

    decoder->toUnicode(&readBuffer, rawReadBuffer.constData(), nbytesread);

    if(lockEncoding && decoder->hasFailure()) {
        raiseWellFormedError(QXmlStream::tr("Encountered incorrectly encoded content."));
        readBuffer.clear();
        return 0;
    }
#else
    readBuffer = QString::fromLatin1(rawReadBuffer.data(), nbytesread);
#endif // QT_NO_TEXTCODEC

    readBuffer.reserve(1); // keep capacity when calling resize() next time

    if (readBufferPos < readBuffer.size()) {
        ushort c = readBuffer.at(readBufferPos++).unicode();
        return c;
    }

    atEnd = true;
    return 0;
}

QStringRef QXmlStreamReaderPrivate::namespaceForPrefix(const QStringRef &prefix)
{
     for (int j = namespaceDeclarations.size() - 1; j >= 0; --j) {
         const NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.at(j);
         if (namespaceDeclaration.prefix == prefix) {
             return namespaceDeclaration.namespaceUri;
         }
     }

#if 1
     if (namespaceProcessing && !prefix.isEmpty())
         raiseWellFormedError(QXmlStream::tr("Namespace prefix '%1' not declared").arg(prefix.toString()));
#endif

     return QStringRef();
}

/*
  uses namespaceForPrefix and builds the attribute vector
 */
void QXmlStreamReaderPrivate::resolveTag()
{
    int n = attributeStack.size();

    if (namespaceProcessing) {
        for (int a = 0; a < dtdAttributes.size(); ++a) {
            DtdAttribute &dtdAttribute = dtdAttributes[a];
            if (!dtdAttribute.isNamespaceAttribute
                || dtdAttribute.defaultValue.isNull()
                || dtdAttribute.tagName != qualifiedName
                || dtdAttribute.attributeQualifiedName.isNull())
                continue;
            int i = 0;
            while (i < n && symName(attributeStack[i].key) != dtdAttribute.attributeQualifiedName)
                ++i;
            if (i != n)
                continue;
            if (dtdAttribute.attributePrefix.isEmpty() && dtdAttribute.attributeName == QLatin1String("xmlns")) {
                NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.push();
                namespaceDeclaration.prefix.clear();

                const QStringRef ns(dtdAttribute.defaultValue);
                if(ns == QLatin1String("http://www.w3.org/2000/xmlns/") ||
                   ns == QLatin1String("http://www.w3.org/XML/1998/namespace"))
                    raiseWellFormedError(QXmlStream::tr("Illegal namespace declaration."));
                else
                    namespaceDeclaration.namespaceUri = ns;
            } else if (dtdAttribute.attributePrefix == QLatin1String("xmlns")) {
                NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.push();
                QStringRef namespacePrefix = dtdAttribute.attributeName;
                QStringRef namespaceUri = dtdAttribute.defaultValue;
                if (((namespacePrefix == QLatin1String("xml"))
                     ^ (namespaceUri == QLatin1String("http://www.w3.org/XML/1998/namespace")))
                    || namespaceUri == QLatin1String("http://www.w3.org/2000/xmlns/")
                    || namespaceUri.isEmpty()
                    || namespacePrefix == QLatin1String("xmlns"))
                    raiseWellFormedError(QXmlStream::tr("Illegal namespace declaration."));

                namespaceDeclaration.prefix = namespacePrefix;
                namespaceDeclaration.namespaceUri = namespaceUri;
            }
        }
    }

    tagStack.top().namespaceDeclaration.namespaceUri = namespaceUri = namespaceForPrefix(prefix);

    attributes.resize(n);

    for (int i = 0; i < n; ++i) {
        QXmlStreamAttribute &attribute = attributes[i];
        Attribute &attrib = attributeStack[i];
        QStringRef prefix(symPrefix(attrib.key));
        QStringRef name(symString(attrib.key));
        QStringRef qualifiedName(symName(attrib.key));
        QStringRef value(symString(attrib.value));

        attribute.m_name = QXmlStreamStringRef(name);
        attribute.m_qualifiedName = QXmlStreamStringRef(qualifiedName);
        attribute.m_value = QXmlStreamStringRef(value);

        if (!prefix.isEmpty()) {
            QStringRef attributeNamespaceUri = namespaceForPrefix(prefix);
            attribute.m_namespaceUri = QXmlStreamStringRef(attributeNamespaceUri);
        }

        for (int j = 0; j < i; ++j) {
            if (attributes[j].name() == attribute.name()
                && attributes[j].namespaceUri() == attribute.namespaceUri()
                && (namespaceProcessing || attributes[j].qualifiedName() == attribute.qualifiedName()))
                raiseWellFormedError(QXmlStream::tr("Attribute redefined."));
        }
    }

    for (int a = 0; a < dtdAttributes.size(); ++a) {
        DtdAttribute &dtdAttribute = dtdAttributes[a];
        if (dtdAttribute.isNamespaceAttribute
            || dtdAttribute.defaultValue.isNull()
            || dtdAttribute.tagName != qualifiedName
            || dtdAttribute.attributeQualifiedName.isNull())
            continue;
        int i = 0;
        while (i < n && symName(attributeStack[i].key) != dtdAttribute.attributeQualifiedName)
            ++i;
        if (i != n)
            continue;



        QXmlStreamAttribute attribute;
        attribute.m_name = QXmlStreamStringRef(dtdAttribute.attributeName);
        attribute.m_qualifiedName = QXmlStreamStringRef(dtdAttribute.attributeQualifiedName);
        attribute.m_value = QXmlStreamStringRef(dtdAttribute.defaultValue);

        if (!dtdAttribute.attributePrefix.isEmpty()) {
            QStringRef attributeNamespaceUri = namespaceForPrefix(dtdAttribute.attributePrefix);
            attribute.m_namespaceUri = QXmlStreamStringRef(attributeNamespaceUri);
        }
        attribute.m_isDefault = true;
        attributes.append(attribute);
    }

    attributeStack.clear();
}

void QXmlStreamReaderPrivate::resolvePublicNamespaces()
{
    const Tag &tag = tagStack.top();
    int n = namespaceDeclarations.size() - tag.namespaceDeclarationsSize;
    publicNamespaceDeclarations.resize(n);
    for (int i = 0; i < n; ++i) {
        const NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.at(tag.namespaceDeclarationsSize + i);
        QXmlStreamNamespaceDeclaration &publicNamespaceDeclaration = publicNamespaceDeclarations[i];
        publicNamespaceDeclaration.m_prefix = QXmlStreamStringRef(namespaceDeclaration.prefix);
        publicNamespaceDeclaration.m_namespaceUri = QXmlStreamStringRef(namespaceDeclaration.namespaceUri);
    }
}

void QXmlStreamReaderPrivate::resolveDtd()
{
    publicNotationDeclarations.resize(notationDeclarations.size());
    for (int i = 0; i < notationDeclarations.size(); ++i) {
        const QXmlStreamReaderPrivate::NotationDeclaration &notationDeclaration = notationDeclarations.at(i);
        QXmlStreamNotationDeclaration &publicNotationDeclaration = publicNotationDeclarations[i];
        publicNotationDeclaration.m_name = QXmlStreamStringRef(notationDeclaration.name);
        publicNotationDeclaration.m_systemId = QXmlStreamStringRef(notationDeclaration.systemId);
        publicNotationDeclaration.m_publicId = QXmlStreamStringRef(notationDeclaration.publicId);

    }
    notationDeclarations.clear();
    publicEntityDeclarations.resize(entityDeclarations.size());
    for (int i = 0; i < entityDeclarations.size(); ++i) {
        const QXmlStreamReaderPrivate::EntityDeclaration &entityDeclaration = entityDeclarations.at(i);
        QXmlStreamEntityDeclaration &publicEntityDeclaration = publicEntityDeclarations[i];
        publicEntityDeclaration.m_name = QXmlStreamStringRef(entityDeclaration.name);
        publicEntityDeclaration.m_notationName = QXmlStreamStringRef(entityDeclaration.notationName);
        publicEntityDeclaration.m_systemId = QXmlStreamStringRef(entityDeclaration.systemId);
        publicEntityDeclaration.m_publicId = QXmlStreamStringRef(entityDeclaration.publicId);
        publicEntityDeclaration.m_value = QXmlStreamStringRef(entityDeclaration.value);
    }
    entityDeclarations.clear();
    parameterEntityHash.clear();
}

uint QXmlStreamReaderPrivate::resolveCharRef(int symbolIndex)
{
    bool ok = true;
    uint s;
    // ### add toXShort to QStringRef?
    if (sym(symbolIndex).c == 'x')
        s = symString(symbolIndex, 1).toString().toUInt(&ok, 16);
    else
        s = symString(symbolIndex).toString().toUInt(&ok, 10);

    ok &= (s == 0x9 || s == 0xa || s == 0xd || (s >= 0x20 && s <= 0xd7ff)
           || (s >= 0xe000 && s <= 0xfffd) || (s >= 0x10000 && s <= 0x10ffff));

    return ok ? s : 0;
}


void QXmlStreamReaderPrivate::checkPublicLiteral(const QStringRef &publicId)
{
//#x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%]

    const ushort *data = reinterpret_cast<const ushort *>(publicId.constData());
    uchar c = 0;
    int i;
    for (i = publicId.size() - 1; i >= 0; --i) {
        if (data[i] < 256)
            switch ((c = data[i])) {
            case ' ': case '\n': case '\r': case '-': case '(': case ')':
            case '+': case ',': case '.': case '/': case ':': case '=':
            case '?': case ';': case '!': case '*': case '#': case '@':
            case '$': case '_': case '%': case '\'': case '\"':
                continue;
            default:
                if ((c >= 'a' && c <= 'z')
                    || (c >= 'A' && c <= 'Z')
                    || (c >= '0' && c <= '9'))
                    continue;
            }
        break;
    }
    if (i >= 0)
        raiseWellFormedError(QXmlStream::tr("Unexpected character '%1' in public id literal.").arg(QChar(QLatin1Char(c))));
}

/*
  Checks whether the document starts with an xml declaration. If it
  does, this function returns true; otherwise it sets up everything
  for a synthetic start document event and returns false.
 */
bool QXmlStreamReaderPrivate::checkStartDocument()
{
    hasCheckedStartDocument = true;

    if (scanString(spell[XML], XML))
        return true;

    type = QXmlStreamReader::StartDocument;
    if (atEnd) {
        hasCheckedStartDocument = false;
        raiseError(QXmlStreamReader::PrematureEndOfDocumentError);
    }
    return false;
}

void QXmlStreamReaderPrivate::startDocument()
{
    QString err;
    if (documentVersion != QLatin1String("1.0")) {
        if (documentVersion.toString().contains(QLatin1Char(' ')))
            err = QXmlStream::tr("Invalid XML version string.");
        else
            err = QXmlStream::tr("Unsupported XML version.");
    }
    int n = attributeStack.size();

    /* We use this bool to ensure that the pesudo attributes are in the
     * proper order:
     *
     * [23]     XMLDecl     ::=     '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>' */
    bool hasStandalone = false;

    for (int i = 0; err.isNull() && i < n; ++i) {
        Attribute &attrib = attributeStack[i];
        QStringRef prefix(symPrefix(attrib.key));
        QStringRef key(symString(attrib.key));
        QStringRef value(symString(attrib.value));

        if (prefix.isEmpty() && key == QLatin1String("encoding")) {
            const QString name(value.toString());
            documentEncoding = value;

            if(hasStandalone)
                err = QXmlStream::tr("The standalone pseudo attribute must appear after the encoding.");
            if(!QXmlUtils::isEncName(name))
                err = QXmlStream::tr("%1 is an invalid encoding name.").arg(name);
            else {
#ifdef QT_NO_TEXTCODEC
                readBuffer = QString::fromLatin1(rawReadBuffer.data(), nbytesread);
#else
                QTextCodec *const newCodec = QTextCodec::codecForName(name.toLatin1());
                if (!newCodec)
                    err = QXmlStream::tr("Encoding %1 is unsupported").arg(name);
                else if (newCodec != codec && !lockEncoding) {
                    codec = newCodec;
                    delete decoder;
                    decoder = codec->makeDecoder();
                    decoder->toUnicode(&readBuffer, rawReadBuffer.data(), nbytesread);
                }
#endif // QT_NO_TEXTCODEC
            }
        } else if (prefix.isEmpty() && key == QLatin1String("standalone")) {
            hasStandalone = true;
            if (value == QLatin1String("yes"))
                standalone = true;
            else if (value == QLatin1String("no"))
                standalone = false;
            else
                err = QXmlStream::tr("Standalone accepts only yes or no.");
        } else {
            err = QXmlStream::tr("Invalid attribute in XML declaration.");
        }
    }

    if (!err.isNull())
        raiseWellFormedError(err);
    attributeStack.clear();
}


void QXmlStreamReaderPrivate::raiseError(QXmlStreamReader::Error error, const QString& message)
{
    this->error = error;
    errorString = message;
    if (errorString.isNull()) {
        if (error == QXmlStreamReader::PrematureEndOfDocumentError)
            errorString = QXmlStream::tr("Premature end of document.");
        else if (error == QXmlStreamReader::CustomError)
            errorString = QXmlStream::tr("Invalid document.");
    }

    type = QXmlStreamReader::Invalid;
}

void QXmlStreamReaderPrivate::raiseWellFormedError(const QString &message)
{
    raiseError(QXmlStreamReader::NotWellFormedError, message);
}

void QXmlStreamReaderPrivate::parseError()
{

    if (token == EOF_SYMBOL) {
        raiseError(QXmlStreamReader::PrematureEndOfDocumentError);
        return;
    }
    const int nmax = 4;
    QString error_message;
    int ers = state_stack[tos];
    int nexpected = 0;
    int expected[nmax];
    if (token != ERROR)
        for (int tk = 0; tk < TERMINAL_COUNT; ++tk) {
            int k = t_action(ers, tk);
            if (k <= 0)
                continue;
            if (spell[tk]) {
                if (nexpected < nmax)
                    expected[nexpected++] = tk;
            }
        }

    error_message.clear ();
    if (nexpected && nexpected < nmax) {
        bool first = true;

        for (int s = 0; s < nexpected; ++s) {
            if (first)
                error_message += QXmlStream::tr ("Expected ");
            else if (s == nexpected - 1)
                error_message += QLatin1String (nexpected > 2 ? ", or " : " or ");
            else
                error_message += QLatin1String (", ");

            first = false;
            error_message += QLatin1String("\'");
            error_message += QLatin1String (spell [expected[s]]);
            error_message += QLatin1String("\'");
        }
        error_message += QXmlStream::tr(", but got \'");
        error_message += QLatin1String(spell [token]);
        error_message += QLatin1String("\'");
    } else {
        error_message += QXmlStream::tr("Unexpected \'");
        error_message += QLatin1String(spell [token]);
        error_message += QLatin1String("\'");
    }
    error_message += QLatin1Char('.');

    raiseWellFormedError(error_message);
}

void QXmlStreamReaderPrivate::resume(int rule) {
    resumeReduction = rule;
    if (error == QXmlStreamReader::NoError)
        raiseError(QXmlStreamReader::PrematureEndOfDocumentError);
}

/*! Returns the current line number, starting with 1.

\sa columnNumber(), characterOffset()
 */
qint64 QXmlStreamReader::lineNumber() const
{
    Q_D(const QXmlStreamReader);
    return d->lineNumber + 1; // in public we start with 1
}

/*! Returns the current column number, starting with 0.

\sa lineNumber(), characterOffset()
 */
qint64 QXmlStreamReader::columnNumber() const
{
    Q_D(const QXmlStreamReader);
    return d->characterOffset - d->lastLineStart + d->readBufferPos;
}

/*! Returns the current character offset, starting with 0.

\sa lineNumber(), columnNumber()
*/
qint64 QXmlStreamReader::characterOffset() const
{
    Q_D(const QXmlStreamReader);
    return d->characterOffset + d->readBufferPos;
}


/*!  Returns the text of \l Characters, \l Comment, \l DTD, or
  EntityReference.
 */
QStringRef QXmlStreamReader::text() const
{
    Q_D(const QXmlStreamReader);
    return d->text;
}


/*!  If the state() is \l DTD, this function returns the DTD's
  notation declarations. Otherwise an empty vector is returned.

  The QXmlStreamNotationDeclarations class is defined to be a QVector
  of QXmlStreamNotationDeclaration.
 */
QXmlStreamNotationDeclarations QXmlStreamReader::notationDeclarations() const
{
    Q_D(const QXmlStreamReader);
    if (d->notationDeclarations.size())
        const_cast<QXmlStreamReaderPrivate *>(d)->resolveDtd();
    return d->publicNotationDeclarations;
}


/*!  If the state() is \l DTD, this function returns the DTD's
  unparsed (external) entity declarations. Otherwise an empty vector is returned.

  The QXmlStreamEntityDeclarations class is defined to be a QVector
  of QXmlStreamEntityDeclaration.
 */
QXmlStreamEntityDeclarations QXmlStreamReader::entityDeclarations() const
{
    Q_D(const QXmlStreamReader);
    if (d->entityDeclarations.size())
        const_cast<QXmlStreamReaderPrivate *>(d)->resolveDtd();
    return d->publicEntityDeclarations;
}

/*!
  \since 4.4

  If the state() is \l DTD, this function returns the DTD's
  name. Otherwise an empty string is returned.

 */
QStringRef QXmlStreamReader::dtdName() const
{
   Q_D(const QXmlStreamReader);
   if (d->type == QXmlStreamReader::DTD)
       return d->dtdName;
   return QStringRef();
}

/*!
  \since 4.4

  If the state() is \l DTD, this function returns the DTD's
  public identifier. Otherwise an empty string is returned.

 */
QStringRef QXmlStreamReader::dtdPublicId() const
{
   Q_D(const QXmlStreamReader);
   if (d->type == QXmlStreamReader::DTD)
       return d->dtdPublicId;
   return QStringRef();
}

/*!
  \since 4.4

  If the state() is \l DTD, this function returns the DTD's
  system identifier. Otherwise an empty string is returned.

 */
QStringRef QXmlStreamReader::dtdSystemId() const
{
   Q_D(const QXmlStreamReader);
   if (d->type == QXmlStreamReader::DTD)
       return d->dtdSystemId;
   return QStringRef();
}

/*!  If the state() is \l StartElement, this function returns the
  element's namespace declarations. Otherwise an empty vector is
  returned.

  The QXmlStreamNamespaceDeclaration class is defined to be a QVector
  of QXmlStreamNamespaceDeclaration.

  \sa addExtraNamespaceDeclaration(), addExtraNamespaceDeclarations()
 */
QXmlStreamNamespaceDeclarations QXmlStreamReader::namespaceDeclarations() const
{
    Q_D(const QXmlStreamReader);
    if (d->publicNamespaceDeclarations.isEmpty() && d->type == StartElement)
        const_cast<QXmlStreamReaderPrivate *>(d)->resolvePublicNamespaces();
    return d->publicNamespaceDeclarations;
}


/*!
  \since 4.4

  Adds an \a extraNamespaceDeclaration. The declaration will be
  valid for children of the current element, or - should the function
  be called before any elements are read - for the entire XML
  document.

  \sa namespaceDeclarations(), addExtraNamespaceDeclarations(), setNamespaceProcessing()
 */
void QXmlStreamReader::addExtraNamespaceDeclaration(const QXmlStreamNamespaceDeclaration &extraNamespaceDeclaration)
{
    Q_D(QXmlStreamReader);
    QXmlStreamReaderPrivate::NamespaceDeclaration &namespaceDeclaration = d->namespaceDeclarations.push();
    namespaceDeclaration.prefix = d->addToStringStorage(extraNamespaceDeclaration.prefix());
    namespaceDeclaration.namespaceUri = d->addToStringStorage(extraNamespaceDeclaration.namespaceUri());
}

/*!
  \since 4.4

  Adds a vector of declarations specified by \a extraNamespaceDeclarations.

  \sa namespaceDeclarations(), addExtraNamespaceDeclaration()
 */
void QXmlStreamReader::addExtraNamespaceDeclarations(const QXmlStreamNamespaceDeclarations &extraNamespaceDeclarations)
{
    for (int i = 0; i < extraNamespaceDeclarations.size(); ++i)
        addExtraNamespaceDeclaration(extraNamespaceDeclarations.at(i));
}


/*!  Convenience function to be called in case a StartElement was
  read. Reads until the corresponding EndElement and returns all text
  in-between. In case of no error, the current token (see tokenType())
  after having called this function is EndElement.

  The function concatenates text() when it reads either \l Characters
  or EntityReference tokens, but skips ProcessingInstruction and \l
  Comment. If the current token is not StartElement, an empty string is
  returned.

  The \a behaviour defines what happens in case anything else is
  read before reaching EndElement. The function can include the text from
  child elements (useful for example for HTML), ignore child elements, or
  raise an UnexpectedElementError and return what was read so far.

  \since 4.6
 */
QString QXmlStreamReader::readElementText(ReadElementTextBehaviour behaviour)
{
    Q_D(QXmlStreamReader);
    if (isStartElement()) {
        QString result;
        forever {
            switch (readNext()) {
            case Characters:
            case EntityReference:
                result.insert(result.size(), d->text.unicode(), d->text.size());
                break;
            case EndElement:
                return result;
            case ProcessingInstruction:
            case Comment:
                break;
            case StartElement:
                if (behaviour == SkipChildElements) {
                    skipCurrentElement();
                    break;
                } else if (behaviour == IncludeChildElements) {
                    result += readElementText(behaviour);
                    break;
                }
                // Fall through (for ErrorOnUnexpectedElement)
            default:
                if (d->error || behaviour == ErrorOnUnexpectedElement) {
                    if (!d->error)
                        d->raiseError(UnexpectedElementError, QXmlStream::tr("Expected character data."));
                    return result;
                }
            }
        }
    }
    return QString();
}

/*!
  \overload readElementText()

  Calling this function is equivalent to calling readElementText(ErrorOnUnexpectedElement).
 */
QString QXmlStreamReader::readElementText()
{
    return readElementText(ErrorOnUnexpectedElement);
}

/*!  Raises a custom error with an optional error \a message.

  \sa error(), errorString()
 */
void QXmlStreamReader::raiseError(const QString& message)
{
    Q_D(QXmlStreamReader);
    d->raiseError(CustomError, message);
}

/*!
  Returns the error message that was set with raiseError().

  \sa error(), lineNumber(), columnNumber(), characterOffset()
 */
QString QXmlStreamReader::errorString() const
{
    Q_D(const QXmlStreamReader);
    if (d->type == QXmlStreamReader::Invalid)
        return d->errorString;
    return QString();
}

/*!  Returns the type of the current error, or NoError if no error occurred.

  \sa errorString(), raiseError()
 */
QXmlStreamReader::Error QXmlStreamReader::error() const
{
    Q_D(const QXmlStreamReader);
    if (d->type == QXmlStreamReader::Invalid)
        return d->error;
    return NoError;
}

/*!
  Returns the target of a ProcessingInstruction.
 */
QStringRef QXmlStreamReader::processingInstructionTarget() const
{
    Q_D(const QXmlStreamReader);
    return d->processingInstructionTarget;
}

/*!
  Returns the data of a ProcessingInstruction.
 */
QStringRef QXmlStreamReader::processingInstructionData() const
{
    Q_D(const QXmlStreamReader);
    return d->processingInstructionData;
}



/*!
  Returns the local name of a StartElement, EndElement, or an EntityReference.

  \sa namespaceUri(), qualifiedName()
 */
QStringRef QXmlStreamReader::name() const
{
    Q_D(const QXmlStreamReader);
    return d->name;
}

/*!
  Returns the namespaceUri of a StartElement or EndElement.

  \sa name(), qualifiedName()
 */
QStringRef QXmlStreamReader::namespaceUri() const
{
    Q_D(const QXmlStreamReader);
    return d->namespaceUri;
}

/*!
  Returns the qualified name of a StartElement or EndElement;

  A qualified name is the raw name of an element in the XML data. It
  consists of the namespace prefix, followed by colon, followed by the
  element's local name. Since the namespace prefix is not unique (the
  same prefix can point to different namespaces and different prefixes
  can point to the same namespace), you shouldn't use qualifiedName(),
  but the resolved namespaceUri() and the attribute's local name().

   \sa name(), prefix(), namespaceUri()
 */
QStringRef QXmlStreamReader::qualifiedName() const
{
    Q_D(const QXmlStreamReader);
    return d->qualifiedName;
}



/*!
  \since 4.4

  Returns the prefix of a StartElement or EndElement.

  \sa name(), qualifiedName()
*/
QStringRef QXmlStreamReader::prefix() const
{
    Q_D(const QXmlStreamReader);
    return d->prefix;
}

/*!
  Returns the attributes of a StartElement.
 */
QXmlStreamAttributes QXmlStreamReader::attributes() const
{
    Q_D(const QXmlStreamReader);
    return d->attributes;
}

#endif // QT_NO_XMLSTREAMREADER

/*!
    \class QXmlStreamAttribute
    \since 4.3
    \reentrant
    \brief The QXmlStreamAttribute class represents a single XML attribute

    \ingroup xml-tools

    An attribute consists of an optionally empty namespaceUri(), a
    name(), a value(), and an isDefault() attribute.

    The raw XML attribute name is returned as qualifiedName().
*/

/*!
  Creates an empty attribute.
 */
QXmlStreamAttribute::QXmlStreamAttribute()
{
    m_isDefault = false;
}

/*!
  Destructs an attribute.
 */
QXmlStreamAttribute::~QXmlStreamAttribute()
{
}

/*!  Constructs an attribute in the namespace described with \a
  namespaceUri with \a name and value \a value.
 */
QXmlStreamAttribute::QXmlStreamAttribute(const QString &namespaceUri, const QString &name, const QString &value)
{
    m_namespaceUri = QXmlStreamStringRef(QStringRef(&namespaceUri));
    m_name = m_qualifiedName = QXmlStreamStringRef(QStringRef(&name));
    m_value = QXmlStreamStringRef(QStringRef(&value));
    m_namespaceUri = QXmlStreamStringRef(QStringRef(&namespaceUri));
}

/*!
    Constructs an attribute with qualified name \a qualifiedName and value \a value.
 */
QXmlStreamAttribute::QXmlStreamAttribute(const QString &qualifiedName, const QString &value)
{
    int colon = qualifiedName.indexOf(QLatin1Char(':'));
    m_name = QXmlStreamStringRef(QStringRef(&qualifiedName,
                                            colon + 1,
                                            qualifiedName.size() - (colon + 1)));
    m_qualifiedName = QXmlStreamStringRef(QStringRef(&qualifiedName));
    m_value = QXmlStreamStringRef(QStringRef(&value));
}

/*! \fn QStringRef QXmlStreamAttribute::namespaceUri() const

   Returns the attribute's resolved namespaceUri, or an empty string
   reference if the attribute does not have a defined namespace.
 */
/*! \fn QStringRef QXmlStreamAttribute::name() const
   Returns the attribute's local name.
 */
/*! \fn QStringRef QXmlStreamAttribute::qualifiedName() const
   Returns the attribute's qualified name.

   A qualified name is the raw name of an attribute in the XML
   data. It consists of the namespace prefix(), followed by colon,
   followed by the attribute's local name(). Since the namespace prefix
   is not unique (the same prefix can point to different namespaces
   and different prefixes can point to the same namespace), you
   shouldn't use qualifiedName(), but the resolved namespaceUri() and
   the attribute's local name().
 */
/*!
   \fn QStringRef QXmlStreamAttribute::prefix() const
   \since 4.4
   Returns the attribute's namespace prefix.

   \sa name(), qualifiedName()

*/

/*! \fn QStringRef QXmlStreamAttribute::value() const
   Returns the attribute's value.
 */

/*! \fn bool QXmlStreamAttribute::isDefault() const

   Returns true if the parser added this attribute with a default
   value following an ATTLIST declaration in the DTD; otherwise
   returns false.
*/
/*! \fn bool QXmlStreamAttribute::operator==(const QXmlStreamAttribute &other) const

    Compares this attribute with \a other and returns true if they are
    equal; otherwise returns false.
 */
/*! \fn bool QXmlStreamAttribute::operator!=(const QXmlStreamAttribute &other) const

    Compares this attribute with \a other and returns true if they are
    not equal; otherwise returns false.
 */


/*!
  Creates a copy of \a other.
 */
QXmlStreamAttribute::QXmlStreamAttribute(const QXmlStreamAttribute &other)
{
    *this = other;
}

/*!
  Assigns \a other to this attribute.
 */
QXmlStreamAttribute& QXmlStreamAttribute::operator=(const QXmlStreamAttribute &other)
{
    m_name = other.m_name;
    m_namespaceUri = other.m_namespaceUri;
    m_qualifiedName = other.m_qualifiedName;
    m_value = other.m_value;
    m_isDefault = other.m_isDefault;
    return *this;
}


/*!
    \class QXmlStreamAttributes
    \since 4.3
    \reentrant
    \brief The QXmlStreamAttributes class represents a vector of QXmlStreamAttribute.

    Attributes are returned by a QXmlStreamReader in
    \l{QXmlStreamReader::attributes()} {attributes()} when the reader
    reports a \l {QXmlStreamReader::StartElement}{start element}. The
    class can also be used with a QXmlStreamWriter as an argument to
    \l {QXmlStreamWriter::writeAttributes()}{writeAttributes()}.

    The convenience function value() loops over the vector and returns
    an attribute value for a given namespaceUri and an attribute's
    name.

    New attributes can be added with append().

    \ingroup xml-tools
*/

/*!
    \fn void QXmlStreamAttributes::append(const QXmlStreamAttribute &attribute)

    Appends the given \a attribute to the end of the vector.

    \sa QVector::append()
*/


/*!
    \typedef QXmlStreamNotationDeclarations
    \relates QXmlStreamNotationDeclaration

    Synonym for QVector<QXmlStreamNotationDeclaration>.
*/


/*!
    \class QXmlStreamNotationDeclaration
    \since 4.3
    \reentrant
    \brief The QXmlStreamNotationDeclaration class represents a DTD notation declaration.

    \ingroup xml-tools

    An notation declaration consists of a name(), a systemId(), and a publicId().
*/

/*!
  Creates an empty notation declaration.
*/
QXmlStreamNotationDeclaration::QXmlStreamNotationDeclaration()
{
}
/*!
  Creates a copy of \a other.
 */
QXmlStreamNotationDeclaration::QXmlStreamNotationDeclaration(const QXmlStreamNotationDeclaration &other)
{
    *this = other;
}

/*!
  Assigns \a other to this notation declaration.
 */
QXmlStreamNotationDeclaration& QXmlStreamNotationDeclaration::operator=(const QXmlStreamNotationDeclaration &other)
{
    m_name = other.m_name;
    m_systemId = other.m_systemId;
    m_publicId = other.m_publicId;
    return *this;
}

/*!
Destructs this notation declaration.
*/
QXmlStreamNotationDeclaration::~QXmlStreamNotationDeclaration()
{
}

/*! \fn QStringRef QXmlStreamNotationDeclaration::name() const

Returns the notation name.
*/
/*! \fn QStringRef QXmlStreamNotationDeclaration::systemId() const

Returns the system identifier.
*/
/*! \fn QStringRef QXmlStreamNotationDeclaration::publicId() const

Returns the public identifier.
*/

/*! \fn inline bool QXmlStreamNotationDeclaration::operator==(const QXmlStreamNotationDeclaration &other) const

    Compares this notation declaration with \a other and returns true
    if they are equal; otherwise returns false.
 */
/*! \fn inline bool QXmlStreamNotationDeclaration::operator!=(const QXmlStreamNotationDeclaration &other) const

    Compares this notation declaration with \a other and returns true
    if they are not equal; otherwise returns false.
 */

/*!
    \typedef QXmlStreamNamespaceDeclarations
    \relates QXmlStreamNamespaceDeclaration

    Synonym for QVector<QXmlStreamNamespaceDeclaration>.
*/

/*!
    \class QXmlStreamNamespaceDeclaration
    \since 4.3
    \reentrant
    \brief The QXmlStreamNamespaceDeclaration class represents a namespace declaration.

    \ingroup xml-tools

    An namespace declaration consists of a prefix() and a namespaceUri().
*/
/*! \fn inline bool QXmlStreamNamespaceDeclaration::operator==(const QXmlStreamNamespaceDeclaration &other) const

    Compares this namespace declaration with \a other and returns true
    if they are equal; otherwise returns false.
 */
/*! \fn inline bool QXmlStreamNamespaceDeclaration::operator!=(const QXmlStreamNamespaceDeclaration &other) const

    Compares this namespace declaration with \a other and returns true
    if they are not equal; otherwise returns false.
 */

/*!
  Creates an empty namespace declaration.
*/
QXmlStreamNamespaceDeclaration::QXmlStreamNamespaceDeclaration()
{
}

/*!
  \since 4.4

  Creates a namespace declaration with \a prefix and \a namespaceUri.
*/
QXmlStreamNamespaceDeclaration::QXmlStreamNamespaceDeclaration(const QString &prefix, const QString &namespaceUri)
{
    m_prefix = prefix;
    m_namespaceUri = namespaceUri;
}

/*!
  Creates a copy of \a other.
 */
QXmlStreamNamespaceDeclaration::QXmlStreamNamespaceDeclaration(const QXmlStreamNamespaceDeclaration &other)
{
    *this = other;
}

/*!
  Assigns \a other to this namespace declaration.
 */
QXmlStreamNamespaceDeclaration& QXmlStreamNamespaceDeclaration::operator=(const QXmlStreamNamespaceDeclaration &other)
{
    m_prefix = other.m_prefix;
    m_namespaceUri = other.m_namespaceUri;
    return *this;
}
/*!
Destructs this namespace declaration.
*/
QXmlStreamNamespaceDeclaration::~QXmlStreamNamespaceDeclaration()
{
}

/*! \fn QStringRef QXmlStreamNamespaceDeclaration::prefix() const

Returns the prefix.
*/
/*! \fn QStringRef QXmlStreamNamespaceDeclaration::namespaceUri() const

Returns the namespaceUri.
*/




/*!
    \typedef QXmlStreamEntityDeclarations
    \relates QXmlStreamEntityDeclaration

    Synonym for QVector<QXmlStreamEntityDeclaration>.
*/

/*!
    \class QXmlStreamStringRef
    \since 4.3
    \internal
*/

/*!
    \class QXmlStreamEntityDeclaration
    \since 4.3
    \reentrant
    \brief The QXmlStreamEntityDeclaration class represents a DTD entity declaration.

    \ingroup xml-tools

    An entity declaration consists of a name(), a notationName(), a
    systemId(), a publicId(), and a value().
*/

/*!
  Creates an empty entity declaration.
*/
QXmlStreamEntityDeclaration::QXmlStreamEntityDeclaration()
{
}

/*!
  Creates a copy of \a other.
 */
QXmlStreamEntityDeclaration::QXmlStreamEntityDeclaration(const QXmlStreamEntityDeclaration &other)
{
    *this = other;
}

/*!
  Assigns \a other to this entity declaration.
 */
QXmlStreamEntityDeclaration& QXmlStreamEntityDeclaration::operator=(const QXmlStreamEntityDeclaration &other)
{
    m_name = other.m_name;
    m_notationName = other.m_notationName;
    m_systemId = other.m_systemId;
    m_publicId = other.m_publicId;
    m_value = other.m_value;
    return *this;
}

/*!
  Destructs this entity declaration.
*/
QXmlStreamEntityDeclaration::~QXmlStreamEntityDeclaration()
{
}

/*! \fn QStringRef QXmlStreamEntityDeclaration::name() const

Returns the entity name.
*/
/*! \fn QStringRef QXmlStreamEntityDeclaration::notationName() const

Returns the notation name.
*/
/*! \fn QStringRef QXmlStreamEntityDeclaration::systemId() const

Returns the system identifier.
*/
/*! \fn QStringRef QXmlStreamEntityDeclaration::publicId() const

Returns the public identifier.
*/
/*! \fn QStringRef QXmlStreamEntityDeclaration::value() const

Returns the entity's value.
*/

/*! \fn bool QXmlStreamEntityDeclaration::operator==(const QXmlStreamEntityDeclaration &other) const

    Compares this entity declaration with \a other and returns true if
    they are equal; otherwise returns false.
 */
/*! \fn bool QXmlStreamEntityDeclaration::operator!=(const QXmlStreamEntityDeclaration &other) const

    Compares this entity declaration with \a other and returns true if
    they are not equal; otherwise returns false.
 */

/*!  Returns the value of the attribute \a name in the namespace
  described with \a namespaceUri, or an empty string reference if the
  attribute is not defined. The \a namespaceUri can be empty.
 */
QStringRef QXmlStreamAttributes::value(const QString &namespaceUri, const QString &name) const
{
    for (int i = 0; i < size(); ++i) {
        const QXmlStreamAttribute &attribute = at(i);
        if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
            return attribute.value();
    }
    return QStringRef();
}

/*!\overload
  Returns the value of the attribute \a name in the namespace
  described with \a namespaceUri, or an empty string reference if the
  attribute is not defined. The \a namespaceUri can be empty.
 */
QStringRef QXmlStreamAttributes::value(const QString &namespaceUri, const QLatin1String &name) const
{
    for (int i = 0; i < size(); ++i) {
        const QXmlStreamAttribute &attribute = at(i);
        if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
            return attribute.value();
    }
    return QStringRef();
}

/*!\overload
  Returns the value of the attribute \a name in the namespace
  described with \a namespaceUri, or an empty string reference if the
  attribute is not defined. The \a namespaceUri can be empty.
 */
QStringRef QXmlStreamAttributes::value(const QLatin1String &namespaceUri, const QLatin1String &name) const
{
    for (int i = 0; i < size(); ++i) {
        const QXmlStreamAttribute &attribute = at(i);
        if (attribute.name() == name && attribute.namespaceUri() == namespaceUri)
            return attribute.value();
    }
    return QStringRef();
}

/*!\overload

  Returns the value of the attribute with qualified name \a
  qualifiedName , or an empty string reference if the attribute is not
  defined. A qualified name is the raw name of an attribute in the XML
  data. It consists of the namespace prefix, followed by colon,
  followed by the attribute's local name. Since the namespace prefix
  is not unique (the same prefix can point to different namespaces and
  different prefixes can point to the same namespace), you shouldn't
  use qualified names, but a resolved namespaceUri and the attribute's
  local name.
 */
QStringRef QXmlStreamAttributes::value(const QString &qualifiedName) const
{
    for (int i = 0; i < size(); ++i) {
        const QXmlStreamAttribute &attribute = at(i);
        if (attribute.qualifiedName() == qualifiedName)
            return attribute.value();
    }
    return QStringRef();
}

/*!\overload

  Returns the value of the attribute with qualified name \a
  qualifiedName , or an empty string reference if the attribute is not
  defined. A qualified name is the raw name of an attribute in the XML
  data. It consists of the namespace prefix, followed by colon,
  followed by the attribute's local name. Since the namespace prefix
  is not unique (the same prefix can point to different namespaces and
  different prefixes can point to the same namespace), you shouldn't
  use qualified names, but a resolved namespaceUri and the attribute's
  local name.
 */
QStringRef QXmlStreamAttributes::value(const QLatin1String &qualifiedName) const
{
    for (int i = 0; i < size(); ++i) {
        const QXmlStreamAttribute &attribute = at(i);
        if (attribute.qualifiedName() == qualifiedName)
            return attribute.value();
    }
    return QStringRef();
}

/*!Appends a new attribute with \a name in the namespace
  described with \a namespaceUri, and value \a value. The \a
  namespaceUri can be empty.
 */
void QXmlStreamAttributes::append(const QString &namespaceUri, const QString &name, const QString &value)
{
    append(QXmlStreamAttribute(namespaceUri, name, value));
}

/*!\overload
  Appends a new attribute with qualified name \a qualifiedName and
  value \a value.
 */
void QXmlStreamAttributes::append(const QString &qualifiedName, const QString &value)
{
    append(QXmlStreamAttribute(qualifiedName, value));
}

#ifndef QT_NO_XMLSTREAMREADER

/*! \fn bool QXmlStreamReader::isStartDocument() const
  Returns true if tokenType() equals \l StartDocument; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isEndDocument() const
  Returns true if tokenType() equals \l EndDocument; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isStartElement() const
  Returns true if tokenType() equals \l StartElement; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isEndElement() const
  Returns true if tokenType() equals \l EndElement; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isCharacters() const
  Returns true if tokenType() equals \l Characters; otherwise returns false.

  \sa isWhitespace(), isCDATA()
*/
/*! \fn bool QXmlStreamReader::isComment() const
  Returns true if tokenType() equals \l Comment; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isDTD() const
  Returns true if tokenType() equals \l DTD; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isEntityReference() const
  Returns true if tokenType() equals \l EntityReference; otherwise returns false.
*/
/*! \fn bool QXmlStreamReader::isProcessingInstruction() const
  Returns true if tokenType() equals \l ProcessingInstruction; otherwise returns false.
*/

/*!  Returns true if the reader reports characters that only consist
  of white-space; otherwise returns false.

  \sa isCharacters(), text()
*/
bool QXmlStreamReader::isWhitespace() const
{
    Q_D(const QXmlStreamReader);
    return d->type == QXmlStreamReader::Characters && d->isWhitespace;
}

/*!  Returns true if the reader reports characters that stem from a
  CDATA section; otherwise returns false.

  \sa isCharacters(), text()
*/
bool QXmlStreamReader::isCDATA() const
{
    Q_D(const QXmlStreamReader);
    return d->type == QXmlStreamReader::Characters && d->isCDATA;
}



/*!
  Returns true if this document has been declared standalone in the
  XML declaration; otherwise returns false.

  If no XML declaration has been parsed, this function returns false.
 */
bool QXmlStreamReader::isStandaloneDocument() const
{
    Q_D(const QXmlStreamReader);
    return d->standalone;
}


/*!
     \since 4.4

     If the state() is \l StartDocument, this function returns the
     version string as specified in the XML declaration.
     Otherwise an empty string is returned.
 */
QStringRef QXmlStreamReader::documentVersion() const
{
   Q_D(const QXmlStreamReader);
   if (d->type == QXmlStreamReader::StartDocument)
       return d->documentVersion;
   return QStringRef();
}

/*!
     \since 4.4

     If the state() is \l StartDocument, this function returns the
     encoding string as specified in the XML declaration.
     Otherwise an empty string is returned.
 */
QStringRef QXmlStreamReader::documentEncoding() const
{
   Q_D(const QXmlStreamReader);
   if (d->type == QXmlStreamReader::StartDocument)
       return d->documentEncoding;
   return QStringRef();
}

#endif // QT_NO_XMLSTREAMREADER

/*!
  \class QXmlStreamWriter
  \since 4.3
  \reentrant

  \brief The QXmlStreamWriter class provides an XML writer with a
  simple streaming API.

  \ingroup xml-tools

  QXmlStreamWriter is the counterpart to QXmlStreamReader for writing
  XML. Like its related class, it operates on a QIODevice specified
  with setDevice(). The API is simple and straightforward: for every
  XML token or event you want to write, the writer provides a
  specialized function.

  You start a document with writeStartDocument() and end it with
  writeEndDocument(). This will implicitly close all remaining open
  tags.

  Element tags are opened with writeStartElement() followed by
  writeAttribute() or writeAttributes(), element content, and then
  writeEndElement(). A shorter form writeEmptyElement() can be used
  to write empty elements, followed by writeAttributes().

  Element content consists of either characters, entity references or
  nested elements. It is written with writeCharacters(), which also
  takes care of escaping all forbidden characters and character
  sequences, writeEntityReference(), or subsequent calls to
  writeStartElement(). A convenience method writeTextElement() can be
  used for writing terminal elements that contain nothing but text.

  The following abridged code snippet shows the basic use of the class
  to write formatted XML with indentation:

  \snippet doc/src/snippets/qxmlstreamwriter/main.cpp start stream
  \dots
  \snippet doc/src/snippets/qxmlstreamwriter/main.cpp write element
  \dots
  \snippet doc/src/snippets/qxmlstreamwriter/main.cpp finish stream

  QXmlStreamWriter takes care of prefixing namespaces, all you have to
  do is specify the \c namespaceUri when writing elements or
  attributes. If you must conform to certain prefixes, you can force
  the writer to use them by declaring the namespaces manually with
  either writeNamespace() or writeDefaultNamespace(). Alternatively,
  you can bypass the stream writer's namespace support and use
  overloaded methods that take a qualified name instead. The namespace
  \e http://www.w3.org/XML/1998/namespace is implicit and mapped to the
  prefix \e xml.

  The stream writer can automatically format the generated XML data by
  adding line-breaks and indentation to empty sections between
  elements, making the XML data more readable for humans and easier to
  work with for most source code management systems. The feature can
  be turned on with the \l autoFormatting property, and customized
  with the \l autoFormattingIndent property.

  Other functions are writeCDATA(), writeComment(),
  writeProcessingInstruction(), and writeDTD(). Chaining of XML
  streams is supported with writeCurrentToken().

  By default, QXmlStreamWriter encodes XML in UTF-8. Different
  encodings can be enforced using setCodec().

  If an error occurs while writing to the underlying device, hasError()
  starts returning true and subsequent writes are ignored.

  The \l{QXmlStream Bookmarks Example} illustrates how to use a
  stream writer to write an XML bookmark file (XBEL) that
  was previously read in by a QXmlStreamReader.

*/

#ifndef QT_NO_XMLSTREAMWRITER

class QXmlStreamWriterPrivate : public QXmlStreamPrivateTagStack {
    QXmlStreamWriter *q_ptr;
    Q_DECLARE_PUBLIC(QXmlStreamWriter)
public:
    QXmlStreamWriterPrivate(QXmlStreamWriter *q);
    ~QXmlStreamWriterPrivate() {
        if (deleteDevice)
            delete device;
#ifndef QT_NO_TEXTCODEC
        delete encoder;
#endif
    }

    void write(const QStringRef &);
    void write(const QString &);
    void writeEscaped(const QString &, bool escapeWhitespace = false);
    void write(const char *s, int len);
    template <int N> void write(const char (&s)[N]) { write(s, N - 1); }
    bool finishStartElement(bool contents = true);
    void writeStartElement(const QString &namespaceUri, const QString &name);
    QIODevice *device;
    QString *stringDevice;
    uint deleteDevice :1;
    uint inStartElement :1;
    uint inEmptyElement :1;
    uint lastWasStartElement :1;
    uint wroteSomething :1;
    uint hasError :1;
    uint autoFormatting :1;
    QByteArray autoFormattingIndent;
    NamespaceDeclaration emptyNamespace;
    int lastNamespaceDeclaration;

#ifndef QT_NO_TEXTCODEC
    QTextCodec *codec;
    QTextEncoder *encoder;
#endif

    NamespaceDeclaration &findNamespace(const QString &namespaceUri, bool writeDeclaration = false, bool noDefault = false);
    void writeNamespaceDeclaration(const NamespaceDeclaration &namespaceDeclaration);

    int namespacePrefixCount;

    void indent(int level);
};


QXmlStreamWriterPrivate::QXmlStreamWriterPrivate(QXmlStreamWriter *q)
    :autoFormattingIndent(4, ' ')
{
    q_ptr = q;
    device = 0;
    stringDevice = 0;
    deleteDevice = false;
#ifndef QT_NO_TEXTCODEC
    codec = QTextCodec::codecForMib(106); // utf8
    encoder = codec->makeEncoder(QTextCodec::IgnoreHeader); // no byte order mark for utf8
#endif
    inStartElement = inEmptyElement = false;
    wroteSomething = false;
    hasError = false;
    lastWasStartElement = false;
    lastNamespaceDeclaration = 1;
    autoFormatting = false;
    namespacePrefixCount = 0;
}

void QXmlStreamWriterPrivate::write(const QStringRef &s)
{
    if (device) {
        if (hasError)
            return;
#ifdef QT_NO_TEXTCODEC
        QByteArray bytes = s.toLatin1();
#else
        QByteArray bytes = encoder->fromUnicode(s.constData(), s.size());
#endif
        if (device->write(bytes) != bytes.size())
            hasError = true;
    }
    else if (stringDevice)
        s.appendTo(stringDevice);
    else
        qWarning("QXmlStreamWriter: No device");
}

void QXmlStreamWriterPrivate::write(const QString &s)
{
    if (device) {
        if (hasError)
            return;
#ifdef QT_NO_TEXTCODEC
        QByteArray bytes = s.toLatin1();
#else
        QByteArray bytes = encoder->fromUnicode(s);
#endif
        if (device->write(bytes) != bytes.size())
            hasError = true;
    }
    else if (stringDevice)
        stringDevice->append(s);
    else
        qWarning("QXmlStreamWriter: No device");
}

void QXmlStreamWriterPrivate::writeEscaped(const QString &s, bool escapeWhitespace)
{
    QString escaped;
    escaped.reserve(s.size());
    for ( int i = 0; i < s.size(); ++i ) {
        QChar c = s.at(i);
        if (c.unicode() == '<' )
            escaped.append(QLatin1String("&lt;"));
        else if (c.unicode() == '>' )
            escaped.append(QLatin1String("&gt;"));
        else if (c.unicode() == '&' )
            escaped.append(QLatin1String("&amp;"));
        else if (c.unicode() == '\"' )
            escaped.append(QLatin1String("&quot;"));
        else if (escapeWhitespace && c.isSpace()) {
            if (c.unicode() == '\n')
                escaped.append(QLatin1String("&#10;"));
            else if (c.unicode() == '\r')
                escaped.append(QLatin1String("&#13;"));
            else if (c.unicode() == '\t')
                escaped.append(QLatin1String("&#9;"));
            else
                escaped += c;
        } else {
            escaped += QChar(c);
        }
    }
    write(escaped);
}

// ASCII only!
void QXmlStreamWriterPrivate::write(const char *s, int len)
{
    if (device) {
        if (hasError)
            return;
        if (device->write(s, len) != len)
            hasError = true;
    } else if (stringDevice) {
        stringDevice->append(QString::fromLatin1(s, len));
    } else
        qWarning("QXmlStreamWriter: No device");
}

void QXmlStreamWriterPrivate::writeNamespaceDeclaration(const NamespaceDeclaration &namespaceDeclaration) {
    if (namespaceDeclaration.prefix.isEmpty()) {
        write(" xmlns=\"");
        write(namespaceDeclaration.namespaceUri);
        write("\"");
    } else {
        write(" xmlns:");
        write(namespaceDeclaration.prefix);
        write("=\"");
        write(namespaceDeclaration.namespaceUri);
        write("\"");
    }
}

bool QXmlStreamWriterPrivate::finishStartElement(bool contents)
{
    bool hadSomethingWritten = wroteSomething;
    wroteSomething = contents;
    if (!inStartElement)
        return hadSomethingWritten;

    if (inEmptyElement) {
        write("/>");
        QXmlStreamWriterPrivate::Tag &tag = tagStack_pop();
        lastNamespaceDeclaration = tag.namespaceDeclarationsSize;
        lastWasStartElement = false;
    } else {
        write(">");
    }
    inStartElement = inEmptyElement = false;
    lastNamespaceDeclaration = namespaceDeclarations.size();
    return hadSomethingWritten;
}

QXmlStreamPrivateTagStack::NamespaceDeclaration &QXmlStreamWriterPrivate::findNamespace(const QString &namespaceUri, bool writeDeclaration, bool noDefault)
{
    for (int j = namespaceDeclarations.size() - 1; j >= 0; --j) {
        NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations[j];
        if (namespaceDeclaration.namespaceUri == namespaceUri) {
            if (!noDefault || !namespaceDeclaration.prefix.isEmpty())
                return namespaceDeclaration;
        }
    }
    if (namespaceUri.isEmpty())
        return emptyNamespace;
    NamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.push();
    if (namespaceUri.isEmpty()) {
        namespaceDeclaration.prefix.clear();
    } else {
        QString s;
        int n = ++namespacePrefixCount;
        forever {
            s = QLatin1Char('n') + QString::number(n++);
            int j = namespaceDeclarations.size() - 2;
            while (j >= 0 && namespaceDeclarations.at(j).prefix != s)
                --j;
            if (j < 0)
                break;
	}
        namespaceDeclaration.prefix = addToStringStorage(s);
    }
    namespaceDeclaration.namespaceUri = addToStringStorage(namespaceUri);
    if (writeDeclaration)
        writeNamespaceDeclaration(namespaceDeclaration);
    return namespaceDeclaration;
}



void QXmlStreamWriterPrivate::indent(int level)
{
    write("\n");
    for (int i = level; i > 0; --i)
        write(autoFormattingIndent.constData(), autoFormattingIndent.length());
}


/*!
  Constructs a stream writer.

  \sa setDevice()
 */
QXmlStreamWriter::QXmlStreamWriter()
    : d_ptr(new QXmlStreamWriterPrivate(this))
{
}

/*!
  Constructs a stream writer that writes into \a device;
 */
QXmlStreamWriter::QXmlStreamWriter(QIODevice *device)
    : d_ptr(new QXmlStreamWriterPrivate(this))
{
    Q_D(QXmlStreamWriter);
    d->device = device;
}

/*!  Constructs a stream writer that writes into \a array. This is the
  same as creating an xml writer that operates on a QBuffer device
  which in turn operates on \a array.
 */
QXmlStreamWriter::QXmlStreamWriter(QByteArray *array)
    : d_ptr(new QXmlStreamWriterPrivate(this))
{
    Q_D(QXmlStreamWriter);
    d->device = new QBuffer(array);
    d->device->open(QIODevice::WriteOnly);
    d->deleteDevice = true;
}


/*!  Constructs a stream writer that writes into \a string.
 */
QXmlStreamWriter::QXmlStreamWriter(QString *string)
    : d_ptr(new QXmlStreamWriterPrivate(this))
{
    Q_D(QXmlStreamWriter);
    d->stringDevice = string;
}

/*!
    Destructor.
*/
QXmlStreamWriter::~QXmlStreamWriter()
{
}


/*!
    Sets the current device to \a device. If you want the stream to
    write into a QByteArray, you can create a QBuffer device.

    \sa device()
*/
void QXmlStreamWriter::setDevice(QIODevice *device)
{
    Q_D(QXmlStreamWriter);
    if (device == d->device)
        return;
    d->stringDevice = 0;
    if (d->deleteDevice) {
        delete d->device;
        d->deleteDevice = false;
    }
    d->device = device;
}

/*!
    Returns the current device associated with the QXmlStreamWriter,
    or 0 if no device has been assigned.

    \sa setDevice()
*/
QIODevice *QXmlStreamWriter::device() const
{
    Q_D(const QXmlStreamWriter);
    return d->device;
}


#ifndef QT_NO_TEXTCODEC
/*!
    Sets the codec for this stream to \a codec. The codec is used for
    encoding any data that is written. By default, QXmlStreamWriter
    uses UTF-8.

    The encoding information is stored in the initial xml tag which
    gets written when you call writeStartDocument(). Call this
    function before calling writeStartDocument().

    \sa codec()
*/
void QXmlStreamWriter::setCodec(QTextCodec *codec)
{
    Q_D(QXmlStreamWriter);
    if (codec) {
        d->codec = codec;
        delete d->encoder;
        d->encoder = codec->makeEncoder(QTextCodec::IgnoreHeader); // no byte order mark for utf8
    }
}

/*!
    Sets the codec for this stream to the QTextCodec for the encoding
    specified by \a codecName. Common values for \c codecName include
    "ISO 8859-1", "UTF-8", and "UTF-16". If the encoding isn't
    recognized, nothing happens.

    \sa QTextCodec::codecForName()
*/
void QXmlStreamWriter::setCodec(const char *codecName)
{
    setCodec(QTextCodec::codecForName(codecName));
}

/*!
    Returns the codec that is currently assigned to the stream.

    \sa setCodec()
*/
QTextCodec *QXmlStreamWriter::codec() const
{
    Q_D(const QXmlStreamWriter);
    return d->codec;
}
#endif // QT_NO_TEXTCODEC

/*!
    \property  QXmlStreamWriter::autoFormatting
    \since 4.4
    the auto-formatting flag of the stream writer

    This property controls whether or not the stream writer
    automatically formats the generated XML data. If enabled, the
    writer automatically adds line-breaks and indentation to empty
    sections between elements (ignorable whitespace). The main purpose
    of auto-formatting is to split the data into several lines, and to
    increase readability for a human reader. The indentation depth can
    be controlled through the \l autoFormattingIndent property.

    By default, auto-formatting is disabled.
*/

/*!
 \since 4.4

 Enables auto formatting if \a enable is \c true, otherwise
 disables it.

 The default value is \c false.
 */
void QXmlStreamWriter::setAutoFormatting(bool enable)
{
    Q_D(QXmlStreamWriter);
    d->autoFormatting = enable;
}

/*!
 \since 4.4

 Returns \c true if auto formattting is enabled, otherwise \c false.
 */
bool QXmlStreamWriter::autoFormatting() const
{
    Q_D(const QXmlStreamWriter);
    return d->autoFormatting;
}

/*!
    \property QXmlStreamWriter::autoFormattingIndent
    \since 4.4

    \brief the number of spaces or tabs used for indentation when
    auto-formatting is enabled.  Positive numbers indicate spaces,
    negative numbers tabs.

    The default indentation is 4.

    \sa autoFormatting
*/


void QXmlStreamWriter::setAutoFormattingIndent(int spacesOrTabs)
{
    Q_D(QXmlStreamWriter);
    d->autoFormattingIndent = QByteArray(qAbs(spacesOrTabs), spacesOrTabs >= 0 ? ' ' : '\t');
}

int QXmlStreamWriter::autoFormattingIndent() const
{
    Q_D(const QXmlStreamWriter);
    return d->autoFormattingIndent.count(' ') - d->autoFormattingIndent.count('\t');
}

/*!
    Returns \c true if the stream failed to write to the underlying device.

    The error status is never reset. Writes happening after the error
    occurred are ignored, even if the error condition is cleared.
 */
bool QXmlStreamWriter::hasError() const
{
    Q_D(const QXmlStreamWriter);
    return d->hasError;
}

/*!
  \overload
  Writes an attribute with \a qualifiedName and \a value.


  This function can only be called after writeStartElement() before
  any content is written, or after writeEmptyElement().
 */
void QXmlStreamWriter::writeAttribute(const QString &qualifiedName, const QString &value)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(d->inStartElement);
    Q_ASSERT(qualifiedName.count(QLatin1Char(':')) <= 1);
    d->write(" ");
    d->write(qualifiedName);
    d->write("=\"");
    d->writeEscaped(value, true);
    d->write("\"");
}

/*!  Writes an attribute with \a name and \a value, prefixed for
  the specified \a namespaceUri. If the namespace has not been
  declared yet, QXmlStreamWriter will generate a namespace declaration
  for it.

  This function can only be called after writeStartElement() before
  any content is written, or after writeEmptyElement().
 */
void QXmlStreamWriter::writeAttribute(const QString &namespaceUri, const QString &name, const QString &value)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(d->inStartElement);
    Q_ASSERT(!name.contains(QLatin1Char(':')));
    QXmlStreamWriterPrivate::NamespaceDeclaration &namespaceDeclaration = d->findNamespace(namespaceUri, true, true);
    d->write(" ");
    if (!namespaceDeclaration.prefix.isEmpty()) {
        d->write(namespaceDeclaration.prefix);
        d->write(":");
    }
    d->write(name);
    d->write("=\"");
    d->writeEscaped(value, true);
    d->write("\"");
}

/*!
  \overload

  Writes the \a attribute.

  This function can only be called after writeStartElement() before
  any content is written, or after writeEmptyElement().
 */
void QXmlStreamWriter::writeAttribute(const QXmlStreamAttribute& attribute)
{
    if (attribute.namespaceUri().isEmpty())
        writeAttribute(attribute.qualifiedName().toString(),
                       attribute.value().toString());
    else
        writeAttribute(attribute.namespaceUri().toString(),
                       attribute.name().toString(),
                       attribute.value().toString());
}


/*!  Writes the attribute vector \a attributes. If a namespace
  referenced in an attribute not been declared yet, QXmlStreamWriter
  will generate a namespace declaration for it.

  This function can only be called after writeStartElement() before
  any content is written, or after writeEmptyElement().

  \sa writeAttribute(), writeNamespace()
 */
void QXmlStreamWriter::writeAttributes(const QXmlStreamAttributes& attributes)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(d->inStartElement);
    Q_UNUSED(d);
    for (int i = 0; i < attributes.size(); ++i)
        writeAttribute(attributes.at(i));
}


/*!  Writes \a text as CDATA section. If \a text contains the
  forbidden character sequence "]]>", it is split into different CDATA
  sections.

  This function mainly exists for completeness. Normally you should
  not need use it, because writeCharacters() automatically escapes all
  non-content characters.
 */
void QXmlStreamWriter::writeCDATA(const QString &text)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement();
    QString copy(text);
    copy.replace(QLatin1String("]]>"), QLatin1String("]]]]><![CDATA[>"));
    d->write("<![CDATA[");
    d->write(copy);
    d->write("]]>");
}


/*!  Writes \a text. The characters "<", "&", and "\"" are escaped as entity
  references "&lt;", "&amp;, and "&quot;". To avoid the forbidden sequence
  "]]>", ">" is also escaped as "&gt;".

  \sa writeEntityReference()
 */
void QXmlStreamWriter::writeCharacters(const QString &text)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement();
    d->writeEscaped(text);
}


/*!  Writes \a text as XML comment, where \a text must not contain the
     forbidden sequence "--" or end with "-". Note that XML does not
     provide any way to escape "-" in a comment.
 */
void QXmlStreamWriter::writeComment(const QString &text)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(!text.contains(QLatin1String("--")) && !text.endsWith(QLatin1Char('-')));
    if (!d->finishStartElement(false) && d->autoFormatting)
        d->indent(d->tagStack.size());
    d->write("<!--");
    d->write(text);
    d->write("-->");
    d->inStartElement = d->lastWasStartElement = false;
}


/*!  Writes a DTD section. The \a dtd represents the entire
  doctypedecl production from the XML 1.0 specification.
 */
void QXmlStreamWriter::writeDTD(const QString &dtd)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement();
    if (d->autoFormatting)
        d->write("\n");
    d->write(dtd);
    if (d->autoFormatting)
        d->write("\n");
}



/*!  \overload
  Writes an empty element with qualified name \a qualifiedName.
  Subsequent calls to writeAttribute() will add attributes to this element.
*/
void QXmlStreamWriter::writeEmptyElement(const QString &qualifiedName)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(qualifiedName.count(QLatin1Char(':')) <= 1);
    d->writeStartElement(QString(), qualifiedName);
    d->inEmptyElement = true;
}


/*!  Writes an empty element with \a name, prefixed for the specified
  \a namespaceUri. If the namespace has not been declared,
  QXmlStreamWriter will generate a namespace declaration for it.
  Subsequent calls to writeAttribute() will add attributes to this element.

  \sa writeNamespace()
 */
void QXmlStreamWriter::writeEmptyElement(const QString &namespaceUri, const QString &name)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(!name.contains(QLatin1Char(':')));
    d->writeStartElement(namespaceUri, name);
    d->inEmptyElement = true;
}


/*!\overload
  Writes a text element with \a qualifiedName and \a text.


  This is a convenience function equivalent to:
  \snippet doc/src/snippets/code/src_corelib_xml_qxmlstream.cpp 1

*/
void QXmlStreamWriter::writeTextElement(const QString &qualifiedName, const QString &text)
{
    writeStartElement(qualifiedName);
    writeCharacters(text);
    writeEndElement();
}

/*!  Writes a text element with \a name, prefixed for the specified \a
     namespaceUri, and \a text. If the namespace has not been
     declared, QXmlStreamWriter will generate a namespace declaration
     for it.


  This is a convenience function equivalent to:
  \snippet doc/src/snippets/code/src_corelib_xml_qxmlstream.cpp 2

*/
void QXmlStreamWriter::writeTextElement(const QString &namespaceUri, const QString &name, const QString &text)
{
    writeStartElement(namespaceUri, name);
    writeCharacters(text);
    writeEndElement();
}


/*!
  Closes all remaining open start elements and writes a newline.

  \sa writeStartDocument()
 */
void QXmlStreamWriter::writeEndDocument()
{
    Q_D(QXmlStreamWriter);
    while (d->tagStack.size())
        writeEndElement();
    d->write("\n");
}

/*!
  Closes the previous start element.

  \sa writeStartElement()
 */
void QXmlStreamWriter::writeEndElement()
{
    Q_D(QXmlStreamWriter);
    if (d->tagStack.isEmpty())
        return;

    // shortcut: if nothing was written, close as empty tag
    if (d->inStartElement && !d->inEmptyElement) {
        d->write("/>");
        d->lastWasStartElement = d->inStartElement = false;
        QXmlStreamWriterPrivate::Tag &tag = d->tagStack_pop();
        d->lastNamespaceDeclaration = tag.namespaceDeclarationsSize;
        return;
    }

    if (!d->finishStartElement(false) && !d->lastWasStartElement && d->autoFormatting)
        d->indent(d->tagStack.size()-1);
    if (d->tagStack.isEmpty())
        return;
    d->lastWasStartElement = false;
    QXmlStreamWriterPrivate::Tag &tag = d->tagStack_pop();
    d->lastNamespaceDeclaration = tag.namespaceDeclarationsSize;
    d->write("</");
    if (!tag.namespaceDeclaration.prefix.isEmpty()) {
        d->write(tag.namespaceDeclaration.prefix);
        d->write(":");
    }
    d->write(tag.name);
    d->write(">");
}



/*!
  Writes the entity reference \a name to the stream, as "&\a{name};".
 */
void QXmlStreamWriter::writeEntityReference(const QString &name)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement();
    d->write("&");
    d->write(name);
    d->write(";");
}


/*!  Writes a namespace declaration for \a namespaceUri with \a
  prefix. If \a prefix is empty, QXmlStreamWriter assigns a unique
  prefix consisting of the letter 'n' followed by a number.

  If writeStartElement() or writeEmptyElement() was called, the
  declaration applies to the current element; otherwise it applies to
  the next child element.

  Note that the prefix \e xml is both predefined and reserved for
  \e http://www.w3.org/XML/1998/namespace, which in turn cannot be
  bound to any other prefix. The prefix \e xmlns and its URI
  \e http://www.w3.org/2000/xmlns/ are used for the namespace mechanism
  itself and thus completely forbidden in declarations.

 */
void QXmlStreamWriter::writeNamespace(const QString &namespaceUri, const QString &prefix)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(!namespaceUri.isEmpty());
    Q_ASSERT(prefix != QLatin1String("xmlns"));
    if (prefix.isEmpty()) {
        d->findNamespace(namespaceUri, d->inStartElement);
    } else {
        Q_ASSERT(!((prefix == QLatin1String("xml")) ^ (namespaceUri == QLatin1String("http://www.w3.org/XML/1998/namespace"))));
        Q_ASSERT(namespaceUri != QLatin1String("http://www.w3.org/2000/xmlns/"));
        QXmlStreamWriterPrivate::NamespaceDeclaration &namespaceDeclaration = d->namespaceDeclarations.push();
        namespaceDeclaration.prefix = d->addToStringStorage(prefix);
        namespaceDeclaration.namespaceUri = d->addToStringStorage(namespaceUri);
        if (d->inStartElement)
            d->writeNamespaceDeclaration(namespaceDeclaration);
    }
}


/*! Writes a default namespace declaration for \a namespaceUri.

  If writeStartElement() or writeEmptyElement() was called, the
  declaration applies to the current element; otherwise it applies to
  the next child element.

  Note that the namespaces \e http://www.w3.org/XML/1998/namespace
  (bound to \e xmlns) and \e http://www.w3.org/2000/xmlns/ (bound to
  \e xml) by definition cannot be declared as default.
 */
void QXmlStreamWriter::writeDefaultNamespace(const QString &namespaceUri)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(namespaceUri != QLatin1String("http://www.w3.org/XML/1998/namespace"));
    Q_ASSERT(namespaceUri != QLatin1String("http://www.w3.org/2000/xmlns/"));
    QXmlStreamWriterPrivate::NamespaceDeclaration &namespaceDeclaration = d->namespaceDeclarations.push();
    namespaceDeclaration.prefix.clear();
    namespaceDeclaration.namespaceUri = d->addToStringStorage(namespaceUri);
    if (d->inStartElement)
        d->writeNamespaceDeclaration(namespaceDeclaration);
}


/*!
  Writes an XML processing instruction with \a target and \a data,
  where \a data must not contain the sequence "?>".
 */
void QXmlStreamWriter::writeProcessingInstruction(const QString &target, const QString &data)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(!data.contains(QLatin1String("?>")));
    if (!d->finishStartElement(false) && d->autoFormatting)
        d->indent(d->tagStack.size());
    d->write("<?");
    d->write(target);
    if (!data.isNull()) {
        d->write(" ");
        d->write(data);
    }
    d->write("?>");
}



/*!\overload

  Writes a document start with XML version number "1.0". This also
  writes the encoding information.

  \sa writeEndDocument(), setCodec()
  \since 4.5
 */
void QXmlStreamWriter::writeStartDocument()
{
    writeStartDocument(QLatin1String("1.0"));
}


/*!
  Writes a document start with the XML version number \a version.

  \sa writeEndDocument()
 */
void QXmlStreamWriter::writeStartDocument(const QString &version)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement(false);
    d->write("<?xml version=\"");
    d->write(version);
    if (d->device) { // stringDevice does not get any encoding
        d->write("\" encoding=\"");
#ifdef QT_NO_TEXTCODEC
        d->write("iso-8859-1");
#else
        d->write(d->codec->name().constData(), d->codec->name().length());
#endif
    }
    d->write("\"?>");
}

/*!  Writes a document start with the XML version number \a version
  and a standalone attribute \a standalone.

  \sa writeEndDocument()
  \since 4.5
 */
void QXmlStreamWriter::writeStartDocument(const QString &version, bool standalone)
{
    Q_D(QXmlStreamWriter);
    d->finishStartElement(false);
    d->write("<?xml version=\"");
    d->write(version);
    if (d->device) { // stringDevice does not get any encoding
        d->write("\" encoding=\"");
#ifdef QT_NO_TEXTCODEC
        d->write("iso-8859-1");
#else
        d->write(d->codec->name().constData(), d->codec->name().length());
#endif
    }
    if (standalone)
        d->write("\" standalone=\"yes\"?>");
    else
        d->write("\" standalone=\"no\"?>");
}


/*!\overload

   Writes a start element with \a qualifiedName. Subsequent calls to
   writeAttribute() will add attributes to this element.

   \sa writeEndElement(), writeEmptyElement()
 */
void QXmlStreamWriter::writeStartElement(const QString &qualifiedName)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(qualifiedName.count(QLatin1Char(':')) <= 1);
    d->writeStartElement(QString(), qualifiedName);
}


/*!  Writes a start element with \a name, prefixed for the specified
  \a namespaceUri. If the namespace has not been declared yet,
  QXmlStreamWriter will generate a namespace declaration for
  it. Subsequent calls to writeAttribute() will add attributes to this
  element.

  \sa writeNamespace(), writeEndElement(), writeEmptyElement()
 */
void QXmlStreamWriter::writeStartElement(const QString &namespaceUri, const QString &name)
{
    Q_D(QXmlStreamWriter);
    Q_ASSERT(!name.contains(QLatin1Char(':')));
    d->writeStartElement(namespaceUri, name);
}

void QXmlStreamWriterPrivate::writeStartElement(const QString &namespaceUri, const QString &name)
{
    if (!finishStartElement(false) && autoFormatting)
        indent(tagStack.size());

    Tag &tag = tagStack_push();
    tag.name = addToStringStorage(name);
    tag.namespaceDeclaration = findNamespace(namespaceUri);
    write("<");
    if (!tag.namespaceDeclaration.prefix.isEmpty()) {
        write(tag.namespaceDeclaration.prefix);
        write(":");
    }
    write(tag.name);
    inStartElement = lastWasStartElement = true;

    for (int i = lastNamespaceDeclaration; i < namespaceDeclarations.size(); ++i)
        writeNamespaceDeclaration(namespaceDeclarations[i]);
    tag.namespaceDeclarationsSize = lastNamespaceDeclaration;
}

#ifndef QT_NO_XMLSTREAMREADER
/*!  Writes the current state of the \a reader. All possible valid
  states are supported.

  The purpose of this function is to support chained processing of XML data.

  \sa QXmlStreamReader::tokenType()
 */
void QXmlStreamWriter::writeCurrentToken(const QXmlStreamReader &reader)
{
    switch (reader.tokenType()) {
    case QXmlStreamReader::NoToken:
        break;
    case QXmlStreamReader::StartDocument:
        writeStartDocument();
        break;
    case QXmlStreamReader::EndDocument:
        writeEndDocument();
        break;
    case QXmlStreamReader::StartElement: {
        QXmlStreamNamespaceDeclarations namespaceDeclarations = reader.namespaceDeclarations();
        for (int i = 0; i < namespaceDeclarations.size(); ++i) {
            const QXmlStreamNamespaceDeclaration &namespaceDeclaration = namespaceDeclarations.at(i);
            writeNamespace(namespaceDeclaration.namespaceUri().toString(),
                           namespaceDeclaration.prefix().toString());
        }
        writeStartElement(reader.namespaceUri().toString(), reader.name().toString());
        writeAttributes(reader.attributes());
             } break;
    case QXmlStreamReader::EndElement:
        writeEndElement();
        break;
    case QXmlStreamReader::Characters:
        if (reader.isCDATA())
            writeCDATA(reader.text().toString());
        else
            writeCharacters(reader.text().toString());
        break;
    case QXmlStreamReader::Comment:
        writeComment(reader.text().toString());
        break;
    case QXmlStreamReader::DTD:
        writeDTD(reader.text().toString());
        break;
    case QXmlStreamReader::EntityReference:
        writeEntityReference(reader.name().toString());
        break;
    case QXmlStreamReader::ProcessingInstruction:
        writeProcessingInstruction(reader.processingInstructionTarget().toString(),
                                   reader.processingInstructionData().toString());
        break;
    default:
        Q_ASSERT(reader.tokenType() != QXmlStreamReader::Invalid);
        qWarning("QXmlStreamWriter: writeCurrentToken() with invalid state.");
        break;
    }
}

/*!
 \fn bool QXmlStreamAttributes::hasAttribute(const QString &qualifiedName) const
 \since 4.5

 Returns true if this QXmlStreamAttributes has an attribute whose
 qualified name is \a qualifiedName; otherwise returns false.

 Note that this is not namespace aware. For instance, if this
 QXmlStreamAttributes contains an attribute whose lexical name is "xlink:href"
 this doesn't tell that an attribute named \c href in the XLink namespace is
 present, since the \c xlink prefix can be bound to any namespace. Use the
 overload that takes a namespace URI and a local name as parameter, for
 namespace aware code.
*/

/*!
 \fn bool QXmlStreamAttributes::hasAttribute(const QLatin1String &qualifiedName) const
 \overload
 \since 4.5
*/

/*!
 \fn bool QXmlStreamAttributes::hasAttribute(const QString &namespaceUri,
                                             const QString &name) const
 \overload
 \since 4.5

 Returns true if this QXmlStreamAttributes has an attribute whose
 namespace URI and name correspond to \a namespaceUri and \a name;
 otherwise returns false.
*/

#endif // QT_NO_XMLSTREAMREADER
#endif // QT_NO_XMLSTREAMWRITER

QT_END_NAMESPACE

#endif // QT_NO_XMLSTREAM