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16 package org.outerj.daisy.publisher.serverimpl;
17
18 import org.xml.sax.ContentHandler  ;
19 import org.xml.sax.SAXException ;
20 import org.xml.sax.Locator ;
21 import org.xml.sax.Attributes ;
22 import org.xml.sax.helpers.AttributesImpl ;
23
24 public class InsertBreaksInCommentsHandler implements ContentHandler {
25 private static final String DAISY_NS = "http://outerx.org/daisy/1.0";
26 private boolean inComment = false;
27 private ContentHandler consumer;
28
29 public InsertBreaksInCommentsHandler(ContentHandler consumer) {
30 this.consumer = consumer;
31 }
32
33 public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
34 if (namespaceURI.equals(DAISY_NS) && localName.equals("comment")) {
35 inComment = true;
36 }
37 consumer.startElement(namespaceURI, localName, qName, atts);
38 }
39
40 public void characters(char ch[], int start, int length) throws SAXException {
41 if (inComment) {
42 int prevBreakPos = start - 1;
43 int end = start + length;
44 int i;
45 for (i = start; i < end; i++) {
46 if (ch[i] == '\n') {
47 if (prevBreakPos != i - 1)
48 consumer.characters(ch, prevBreakPos + 1, i - prevBreakPos - 1);
49 consumer.startElement("", "br", "br", new AttributesImpl ());
50 consumer.endElement("", "br", "br");
51 prevBreakPos = i;
52 }
53 }
54 if (prevBreakPos != i) {
55 consumer.characters(ch, prevBreakPos + 1, i - prevBreakPos - 1);
56 }
57 } else {
58 consumer.characters(ch, start, length);
59 }
60 }
61
62 public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
63 if (namespaceURI.equals(DAISY_NS) && localName.equals("comment")) {
64 inComment = false;
65 }
66 consumer.endElement(namespaceURI, localName, qName);
67 }
68
69 public void endDocument() throws SAXException {
70 consumer.endDocument();
71 }
72
73 public void startDocument() throws SAXException {
74 consumer.startDocument();
75 }
76
77 public void ignorableWhitespace(char ch[], int start, int length) throws SAXException {
78 consumer.ignorableWhitespace(ch, start, length);
79 }
80
81 public void endPrefixMapping(String prefix) throws SAXException {
82 consumer.endPrefixMapping(prefix);
83 }
84
85 public void skippedEntity(String name) throws SAXException {
86 consumer.skippedEntity(name);
87 }
88
89 public void setDocumentLocator(Locator locator) {
90 consumer.setDocumentLocator(locator);
91 }
92
93 public void processingInstruction(String target, String data) throws SAXException {
94 consumer.processingInstruction(target, data);
95 }
96
97 public void startPrefixMapping(String prefix, String uri) throws SAXException {
98 consumer.startPrefixMapping(prefix, uri);
99 }
100 }
101 |
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