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import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static java.util.regex.Pattern.*;
/**
* Build setup utility. Uncomments funcion param names in header files.
*
* before:
* foo(int /x bar x/ )
*
* after:
* foo(int bar )
*
* @author Michael Bien
*/
public class FunctionParamUncommenter {
//(\(.*\))* cl\w+\(([^\)]+)\)
// final static String x = "\\s*(const)?\\w+\\s* \\**\\s+ (/\\*) \\s+[^\\*]+ (\\*/)";
final static Pattern PARAMS_PATTERN
= compile("cl\\w+ \\( ( \\s* [^\\)]+ ) \\)", MULTILINE|COMMENTS);
final static Pattern COMMENT_PATTERN
= compile("\\s*(const)?\\w+\\s* \\**\\s+ (/\\*) \\s+[^\\*]+ (\\*/)", MULTILINE|COMMENTS);
public static void main(String[] args) throws FileNotFoundException, IOException {
uncomment("/home/mbien/NetBeansProjects/JOGL/jocl/resources/CL/cl.h", false);
uncomment("/home/mbien/NetBeansProjects/JOGL/jocl/resources/CL/cl_gl.h", false);
}
private static void uncomment(String file, boolean replace) throws FileNotFoundException, IOException {
System.out.println("- - - begin uncomment - - -");
StringBuilder src = readSourceFile(new File(file));
Matcher matcher = PARAMS_PATTERN.matcher(src);
// iterate through funcions
while (matcher.find()) {
StringBuilder params = new StringBuilder(matcher.group(1));
// System.out.println("- - - - ");
// System.out.println(params.toString());
// System.out.println("- - - - ");
//iterate through params
Matcher m = COMMENT_PATTERN.matcher(params);
while(m.find()) {
//uncomment param
params.replace(m.start(2), m.end(2), " ");
params.replace(m.start(3), m.end(3), " ");
}
//replace old params with uncommented params
src.replace(matcher.start(1), matcher.end(1), params.toString());
}
if(replace) {
//replace old file
BufferedWriter out = new BufferedWriter(new FileWriter(file));
out.write(src.toString());
out.close();
}else{
System.out.println(src);
}
System.out.println("- - - done - - -");
}
private static StringBuilder readSourceFile(File file) throws FileNotFoundException, IOException {
char[] buffer = new char[(int)file.length()];
FileReader reader = new FileReader(file);
int length = reader.read(buffer);
if(reader != null) {
reader.close();
}
StringBuilder sb = new StringBuilder();
sb.append(buffer, 0, length);
return sb;
}
}
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