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1
57
58 package com.sun.org.apache.xerces.internal.impl.xpath.regex;
59
60 import java.text.CharacterIterator  ;
61
62
74 public class Match implements Cloneable {
75 int[] beginpos = null;
76 int[] endpos = null;
77 int nofgroups = 0;
78
79 CharacterIterator ciSource = null;
80 String strSource = null;
81 char[] charSource = null;
82
83
86 public Match() {
87 }
88
89
92 public synchronized Object clone() {
93 Match ma = new Match();
94 if (this.nofgroups > 0) {
95 ma.setNumberOfGroups(this.nofgroups);
96 if (this.ciSource != null) ma.setSource(this.ciSource);
97 if (this.strSource != null) ma.setSource(this.strSource);
98 for (int i = 0; i < this.nofgroups; i ++) {
99 ma.setBeginning(i, this.getBeginning(i));
100 ma.setEnd(i, this.getEnd(i));
101 }
102 }
103 return ma;
104 }
105
106
109 protected void setNumberOfGroups(int n) {
110 int oldn = this.nofgroups;
111 this.nofgroups = n;
112 if (oldn <= 0
113 || oldn < n || n*2 < oldn) {
114 this.beginpos = new int[n];
115 this.endpos = new int[n];
116 }
117 for (int i = 0; i < n; i ++) {
118 this.beginpos[i] = -1;
119 this.endpos[i] = -1;
120 }
121 }
122
123
126 protected void setSource(CharacterIterator ci) {
127 this.ciSource = ci;
128 this.strSource = null;
129 this.charSource = null;
130 }
131
134 protected void setSource(String str) {
135 this.ciSource = null;
136 this.strSource = str;
137 this.charSource = null;
138 }
139
142 protected void setSource(char[] chars) {
143 this.ciSource = null;
144 this.strSource = null;
145 this.charSource = chars;
146 }
147
148
151 protected void setBeginning(int index, int v) {
152 this.beginpos[index] = v;
153 }
154
155
158 protected void setEnd(int index, int v) {
159 this.endpos[index] = v;
160 }
161
162
166 public int getNumberOfGroups() {
167 if (this.nofgroups <= 0)
168 throw new IllegalStateException ("A result is not set.");
169 return this.nofgroups;
170 }
171
172
177 public int getBeginning(int index) {
178 if (this.beginpos == null)
179 throw new IllegalStateException ("A result is not set.");
180 if (index < 0 || this.nofgroups <= index)
181 throw new IllegalArgumentException ("The parameter must be less than "
182 +this.nofgroups+": "+index);
183 return this.beginpos[index];
184 }
185
186
191 public int getEnd(int index) {
192 if (this.endpos == null)
193 throw new IllegalStateException ("A result is not set.");
194 if (index < 0 || this.nofgroups <= index)
195 throw new IllegalArgumentException ("The parameter must be less than "
196 +this.nofgroups+": "+index);
197 return this.endpos[index];
198 }
199
200
205 public String getCapturedText(int index) {
206 if (this.beginpos == null)
207 throw new IllegalStateException ("match() has never been called.");
208 if (index < 0 || this.nofgroups <= index)
209 throw new IllegalArgumentException ("The parameter must be less than "
210 +this.nofgroups+": "+index);
211 String ret;
212 int begin = this.beginpos[index], end = this.endpos[index];
213 if (begin < 0 || end < 0) return null;
214 if (this.ciSource != null) {
215 ret = REUtil.substring(this.ciSource, begin, end);
216 } else if (this.strSource != null) {
217 ret = this.strSource.substring(begin, end);
218 } else {
219 ret = new String (this.charSource, begin, end-begin);
220 }
221 return ret;
222 }
223 }
224 |
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