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/*******************************************************************************
* Copyright (c) 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.tools.internal;
import java.io.*;
import java.util.*;
import org.apache.tools.ant.*;
import org.apache.tools.ant.types.FileSet;
public class SwtReplace extends Task {
/* Attributes */
String from;
String to;
Vector filesets = new Vector();
public SwtReplace() {
}
public void setFrom(String from) {
this.from = from;
}
public void setTo(String to) {
this.to = to;
}
/**
* Adds a set of files to preprocess.
* @param set a set of files to preprocess
*/
public void addFileset(FileSet set) {
filesets.addElement(set);
}
public void execute() throws BuildException {
try {
for (int i = 0; i < filesets.size(); i++) {
FileSet fs = (FileSet)filesets.elementAt(i);
DirectoryScanner ds = fs.getDirectoryScanner(getProject());
String[] srcFiles = ds.getIncludedFiles();
for (int j = 0; j < srcFiles.length; j++) preProcess(ds.getBasedir().toString()+File.separator+srcFiles[j]);
}
} catch (Exception e) {
throw new BuildException(e);
}
}
public void preProcess(String src) throws Exception {
String dst = src+".swt";
File srcFile = new File(src);
File dstFile = new File(dst);
FileReader fr = new FileReader(srcFile);
FileWriter fw = new FileWriter(dstFile);
BufferedReader reader = new BufferedReader(fr);
BufferedWriter writer = new BufferedWriter(fw);
boolean modified = false;
while (true) {
String line = reader.readLine();
if (line == null) break;
int index;
while ((index = line.lastIndexOf(from)) != -1) {
modified = true;
line = line.substring(0, index) + to + line.substring(index + from.length());
}
writer.write(line);
writer.newLine();
}
reader.close();
writer.close();
if (modified) {
srcFile.delete();
dstFile.renameTo(srcFile);
} else {
dstFile.delete();
}
}
}
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