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.modules.cnd.makewizard;
043:
044: /**
045: * We need to emit lots of make variables of the form "$(foo_bar)", where
046: * "foo" is the related to the variable we want to creat and "bar" is
047: * related to the current target. This class is a helper class which
048: * creates these names for us. To cut down on object creation its intended
049: * to be reused with different variables and targets.
050: */
051:
052: public class MakeVarName {
053: private String targetName; // this gets appended to name
054: private StringBuffer lastName; // save the last name created
055: private StringBuffer lastRef; // save the last ref created
056: private StringBuffer lastSuffix; // check if same as last call
057:
058: private StringBuffer buffer = new StringBuffer(80);
059:
060: public MakeVarName() {
061: targetName = null;
062: lastName = new StringBuffer(80);
063: lastRef = new StringBuffer(80);
064: lastSuffix = new StringBuffer(20);
065: }
066:
067: /**
068: * Change the targetName so we can reuse this same object with another
069: * target.
070: */
071: public void setTargetName(String targetName) {
072: this .targetName = targetName;
073:
074: lastName.delete(0, lastName.length());
075: lastRef.delete(0, lastRef.length());
076: lastSuffix.delete(0, lastSuffix.length());
077: }
078:
079: /**
080: * Return a string with the desired name. Cache the last suffix and
081: * returned string so we don't need to recreate it if we match the
082: * last call. This should happen fairly often.
083: */
084: public String makeName(String suffix) {
085:
086: if (suffix.equals(lastSuffix.toString())) {
087: return lastName.toString();
088: } else {
089: buffer.replace(0, buffer.length(), suffix);
090: buffer.append(targetName);
091: lastName.replace(0, lastName.length(), buffer.toString());
092: return buffer.toString();
093: }
094: }
095:
096: /**
097: * Return a string with the desired name. This flavor allows an extra
098: * string to be appended to the name.
099: */
100: public String makeName(String suffix, String extra) {
101:
102: if (suffix.equals(lastSuffix.toString())) {
103: return lastName.toString();
104: } else {
105: buffer.replace(0, buffer.length(), suffix);
106: buffer.append(targetName);
107: buffer.append("_"); // NOI18N
108: buffer.append(extra);
109: lastName.replace(0, lastName.length(), buffer.toString());
110: return buffer.toString();
111: }
112: }
113:
114: /**
115: * Return a string with the desired variable reference. Cache the last
116: * suffix and returned string so we don't need to recreate it if we
117: * match the last call. This should happen fairly often.
118: */
119: public String makeRef(String suffix) {
120:
121: if (suffix.equals(lastSuffix.toString())) {
122: return lastRef.toString();
123: } else {
124: buffer.replace(0, buffer.length(), "$("); // NOI18N
125: buffer.append(suffix);
126: buffer.append(targetName);
127: buffer.append(")"); // NOI18N
128: lastRef.replace(0, lastRef.length(), buffer.toString());
129: return buffer.toString();
130: }
131: }
132:
133: /**
134: * Return a string with the desired variable reference. This flavor
135: * allows an extra string to be appended to the name.
136: */
137: public String makeRef(String suffix, String extra) {
138:
139: if (suffix.equals(lastSuffix.toString())) {
140: return lastRef.toString();
141: } else {
142: buffer.replace(0, buffer.length(), "$("); // NOI18N
143: buffer.append(suffix);
144: buffer.append(targetName);
145: buffer.append("_"); // NOI18N
146: buffer.append(extra);
147: buffer.append(")"); // NOI18N
148: lastRef.replace(0, lastRef.length(), buffer.toString());
149: return buffer.toString();
150: }
151: }
152:
153: /** Return the last name we created */
154: public String lastName() {
155: return lastName.toString();
156: }
157:
158: /** Return the last variable reference we created */
159: public String lastRef() {
160: return lastRef.toString();
161: }
162: }
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