001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.lib.lexer.batch;
043:
044: import java.util.Set;
045: import org.netbeans.api.lexer.LanguagePath;
046: import org.netbeans.lib.lexer.EmbeddingContainer;
047: import org.netbeans.lib.lexer.TokenList;
048: import org.netbeans.api.lexer.InputAttributes;
049: import org.netbeans.api.lexer.TokenId;
050: import org.netbeans.lib.lexer.TokenHierarchyOperation;
051: import org.netbeans.lib.lexer.token.AbstractToken;
052:
053: /**
054: * Filtering token list constructed over character array with an independent
055: * start offset value.
056: * <br>
057: * It is constructed for batch inputs and it implements
058: * a token list but it only implements translation of raw offsets
059: * into real offsets and retrieving of the characters of token bodies.
060: * <br>
061: * Other operations are delegated to an original
062: * token list that really holds the tokens.
063: *
064: * @author Miloslav Metelka
065: * @version 1.00
066: */
067:
068: public final class SkimTokenList<T extends TokenId> implements
069: TokenList<T> {
070:
071: private CopyTextTokenList<T> tokenList;
072:
073: private int startOffset;
074:
075: private char[] text;
076:
077: public SkimTokenList(CopyTextTokenList<T> tokenList,
078: int startOffset, char[] text) {
079: this .tokenList = tokenList;
080: this .startOffset = startOffset;
081: this .text = text;
082: }
083:
084: public CopyTextTokenList<T> getTokenList() {
085: return tokenList;
086: }
087:
088: public int startOffset() {
089: return tokenList.startOffset();
090: }
091:
092: public int endOffset() {
093: return tokenList.endOffset();
094: }
095:
096: public boolean isRemoved() {
097: return tokenList.isRemoved();
098: }
099:
100: char[] getText() {
101: return text;
102: }
103:
104: void setText(char[] text) {
105: this .text = text;
106: }
107:
108: public int childTokenOffset(int rawOffset) {
109: int offsetShift = (rawOffset >> 16);
110: return startOffset + (rawOffset & 0xFFFF) + offsetShift;
111: }
112:
113: public char childTokenCharAt(int rawOffset, int index) {
114: return text[((rawOffset + index) & 0xFFFF)];
115: }
116:
117: public int modCount() {
118: return 0;
119: }
120:
121: public Object tokenOrEmbeddingContainer(int index) {
122: return tokenList.tokenOrEmbeddingContainer(index);
123: }
124:
125: public AbstractToken<T> replaceFlyToken(int index,
126: AbstractToken<T> flyToken, int offset) {
127: return tokenList.replaceFlyToken(index, flyToken, offset);
128: }
129:
130: public int lookahead(int index) {
131: return tokenList.lookahead(index);
132: }
133:
134: public Object state(int index) {
135: return tokenList.state(index);
136: }
137:
138: public int tokenOffset(int index) {
139: return tokenList.tokenOffset(index);
140: }
141:
142: public int tokenCount() {
143: return tokenList.tokenCount();
144: }
145:
146: public int tokenCountCurrent() {
147: return tokenList.tokenCountCurrent();
148: }
149:
150: public TokenList<?> root() {
151: return tokenList.root();
152: }
153:
154: public TokenHierarchyOperation<?, ?> tokenHierarchyOperation() {
155: return tokenList.tokenHierarchyOperation();
156: }
157:
158: public LanguagePath languagePath() {
159: return tokenList.languagePath();
160: }
161:
162: public void wrapToken(int index,
163: EmbeddingContainer embeddingContainer) {
164: tokenList.wrapToken(index, embeddingContainer);
165: }
166:
167: public InputAttributes inputAttributes() {
168: return tokenList.inputAttributes();
169: }
170:
171: public boolean isContinuous() {
172: return tokenList.isContinuous();
173: }
174:
175: public Set<T> skipTokenIds() {
176: return tokenList.skipTokenIds();
177: }
178:
179: }
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