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1
38
39
40 package com.sun.xml.fastinfoset.algorithm;
41
42 import java.nio.CharBuffer  ;
43 import java.util.regex.Matcher ;
44 import java.util.regex.Pattern ;
45 import org.jvnet.fastinfoset.EncodingAlgorithm;
46 import org.jvnet.fastinfoset.EncodingAlgorithmException;
47
48 public abstract class BuiltInEncodingAlgorithm implements EncodingAlgorithm {
49 protected final static Pattern SPACE_PATTERN = Pattern.compile("\\s");
50
51 public abstract int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException;
52
53 public abstract int getOctetLengthFromPrimitiveLength(int primitiveLength);
54
55 public abstract void encodeToBytes(Object array, int astart, int alength, byte[] b, int start);
56
57 public interface WordListener {
58 public void word(int start, int end);
59 }
60
61 public void matchWhiteSpaceDelimnatedWords(CharBuffer cb, WordListener wl) {
62 Matcher m = SPACE_PATTERN.matcher(cb);
63 int i = 0;
64 while(m.find()) {
65 int s = m.start();
66 if (s != i) {
67 wl.word(i, s);
68 }
69 i = m.end();
70 }
71 }
72
73 public StringBuffer removeWhitespace(char[] ch, int start, int length) {
74 StringBuffer buf = new StringBuffer ();
75 int firstNonWS = 0;
76 int idx = 0;
77 for (; idx < length; ++idx) {
78 if (Character.isWhitespace(ch[idx])) {
79 if (firstNonWS < idx) {
80 buf.append(ch, firstNonWS, idx - firstNonWS);
81 }
82 firstNonWS = idx + 1;
83 }
84 }
85 if (firstNonWS < idx) {
86 buf.append(ch, firstNonWS, idx - firstNonWS);
87 }
88 return buf;
89 }
90
91 }
92 |
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