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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.jdk.core.text;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
/**
* @author Ryan D. Brooks
*/
public class ExtractText {
protected String line;
protected int lineNum;
protected BufferedReader in;
protected FileWriter out;
public ExtractText(String sourceFile) {
try {
in = new BufferedReader(new FileReader(sourceFile));
out = new FileWriter("sourceText.txt");
line = null;
lineNum = 0;
while ((line = in.readLine()) != null) {
int pos = line.indexOf("/*");
if (pos != -1) { // beginning of block comment unless in a string literal
if (!insideStringLiteral(line, pos)) {
//find whole block and write to file
pos = line.indexOf("*/");
while (line != null && pos == -1) {
writeText();
line = in.readLine();
pos = line.indexOf("*/");
}
writeText();
} else { // line contains a string
writeText();
}
} else if (line.indexOf("//") != -1) { // line contains a single line comment or string literal
writeText();
} else if ((pos = line.indexOf("\"")) != -1 && line.charAt(pos + 1) != '\'') { // line contains a string literal
writeText();
}
// line does not contain text
lineNum++;
}
in.close();
out.close();
} catch (IOException ex) {
System.err.println(ex);
return;
}
}
protected void writeText() throws IOException {
String str = String.valueOf(++lineNum);
out.write(str, 0, str.length());
out.write(line, 0, line.length());
out.write('\n');
}
public static boolean insideStringLiteral(String str, int pos) {
int index = 0;
boolean inside = false;
char[] chars = new char[str.length()];
str.getChars(0, chars.length, chars, 0);
while (index < pos) {
if (chars[index] == '\\' && chars[index + 1] == '\"') {
index++; // skip over literal quotation marks
} else if (chars[index] == '\"') {
inside = !inside;
}
index++;
}
return inside;
}
public static void main(String[] args) {
if (args.length < 1) {
System.out.println("Usage: ExtractText [source file]");
return;
}
new ExtractText(args[0]);
}
}
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