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1
4 package gnu.kawa.xml;
5 import gnu.lists.*;
6 import gnu.xml.*;
7
8
10 import gnu.mapping.*;
11
12 public abstract class KNode extends SeqPosition
13 implements
14
15
17 Consumable
18 {
19
20 public KNode (NodeTree seq, int ipos)
21 {
22 super(seq, ipos);
23 }
24
25 public static Object  atomicValue (Object value)
26 {
27 if (value instanceof KNode)
28 {
29 KNode node = (KNode) value;
30 return ((NodeTree) node.sequence).typedValue(node.ipos);
31 }
32 return value;
33 }
34
35
36 public static KNode coerce (Object value)
37 {
38 if (value instanceof KNode)
39 return (KNode) value;
40 if (value instanceof NodeTree)
41 {
42 NodeTree ntree = (NodeTree) value;
43 return make(ntree, ntree.startPos());
44 }
45 if (value instanceof SeqPosition
46 && ! (value instanceof TreePosition))
47 {
48 SeqPosition seqp = (SeqPosition) value;
49 if (seqp.sequence instanceof NodeTree)
50 return make((NodeTree) seqp.sequence, seqp.ipos);
51 }
52 return null;
53 }
54
55 public static KNode make(NodeTree seq, int ipos)
56 {
57 int index = seq.posToDataIndex(ipos);
58 while (index < seq.data.length
59 && seq.data[index] == TreeList.BEGIN_ENTITY)
60 {
61 index += TreeList.BEGIN_ENTITY_SIZE;
62 if (index == seq.gapStart)
63 index = seq.gapEnd;
64 ipos = index << 1;
65 }
66 int kind = seq.getNextKindI(seq.posToDataIndex(ipos));
67 switch (kind)
68 {
69 case Sequence.GROUP_VALUE:
70 return new KElement(seq, ipos);
71 case Sequence.ATTRIBUTE_VALUE:
72 return new KAttr(seq, ipos);
73 case Sequence.DOCUMENT_VALUE:
74 return new KDocument(seq, ipos);
75 case Sequence.CDATA_VALUE:
76 return new KCDATASection(seq, ipos);
77 case Sequence.COMMENT_VALUE:
78 return new KComment(seq, ipos);
79 case Sequence.PROCESSING_INSTRUCTION_VALUE:
80 return new KProcessingInstruction(seq, ipos);
81 case Sequence.EOF_VALUE:
82 if (! seq.isEmpty())
83 return null;
84 default:
86 return new KText(seq, ipos);
87 }
88 }
89
90
91
96 public SeqPosition copy ()
97 {
98 return make((NodeTree) sequence, sequence.copyPos(getPos()));
99 }
100
101
102 public static KNode make(NodeTree seq)
103 {
104 return make(seq, 0);
105 }
106
107 public boolean isSupported(String feature, String version)
108 {
109 return false;
110 }
111
112
113
115
116 public String getNodeName ()
117 {
118 return sequence.getNextTypeName(ipos);
119 }
120
121 public String getNamespaceURI ()
122 {
123 return ((NodeTree) sequence).posNamespaceURI(ipos);
124 }
125
126 public String getPrefix ()
127 {
128 return ((NodeTree) sequence).posPrefix(ipos);
129 }
130
131 public String getLocalName ()
132 {
133 return ((NodeTree) sequence).posLocalName(ipos);
134 }
135
136 public static String getNodeValue (NodeTree seq, int ipos)
137 {
138 StringBuffer sbuf = new StringBuffer ();
139 getNodeValue(seq, ipos, sbuf);
140 return sbuf.toString();
141 }
142
143 public static void getNodeValue (NodeTree seq, int ipos, StringBuffer sbuf)
144 {
145 seq.stringValue(seq.posToDataIndex(ipos), sbuf);
146 }
147
148 public String getNodeValue()
149 {
150 StringBuffer sbuf = new StringBuffer ();
151 getNodeValue(sbuf);
152 return sbuf.toString();
153 }
154
155 public void getNodeValue (StringBuffer sbuf)
156 {
157 getNodeValue((NodeTree) sequence, ipos, sbuf);
158 }
159
160 public boolean hasChildNodes()
161 {
162 return ((NodeTree) sequence).posFirstChild(ipos) >= 0;
163 }
164
165 public String getTextContent ()
166 {
167 StringBuffer sbuf = new StringBuffer ();
168 getTextContent(sbuf);
169 return sbuf.toString();
170 }
171
172 protected void getTextContent (StringBuffer sbuf)
173 {
174 getNodeValue(sbuf);
176 }
177
178
179
187
208
209
210
217
223
235
247
264
265
266
273
280
288
296
304
312
320
330
338
343
344 public void normalize ()
345 {
346 }
347
348 public boolean hasAttributes ()
349 {
350 return false;
351 }
352
353 public boolean isDefaultNamespace (String namespaceURI)
354 {
355 return ((NodeTree) sequence).posIsDefaultNamespace(ipos, namespaceURI);
356 }
357
358 public String lookupNamespaceURI (String prefix)
359 {
360 return ((NodeTree) sequence).posLookupNamespaceURI(ipos, prefix);
361 }
362
363 public String lookupPrefix (String namespaceURI)
364 {
365 return ((NodeTree) sequence).posLookupPrefix(ipos, namespaceURI);
366 }
367
368 public String getBaseURI ()
369 {
370 Object uri = ((NodeTree) sequence).baseUriOfPos(ipos, true);
371 return uri == null ? null : uri.toString();
372 }
373
374 public Object baseURI ()
375 {
376 return ((NodeTree) sequence).baseUriOfPos(ipos, true);
377 }
378
379
380
402
407
408 public String toString ()
409 {
410 CharArrayOutPort wr = new CharArrayOutPort();
411 XMLPrinter xp = new XMLPrinter(wr);
412 ((NodeTree) sequence).consumeNext(ipos, xp);
413 xp.close();
414 wr.close();
415 return wr.toString();
416 }
417
418 public Object getFeature (String feature, String version)
419 {
420 return null;
421 }
422
423 public void consume(Consumer out)
424 {
425 if (out instanceof PositionConsumer)
426 ((PositionConsumer) out).consume(this);
427 else
428 ((NodeTree) sequence).consumeNext(ipos, out);
429 }
430
431
432
437
442 }
443 |
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