Mega Code Archive
Undent - remove leading spaces
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/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.*;
/** Undent - remove leading spaces
* @author Ian F. Darwin, http://www.darwinsys.com/
* @version $Id: Undent.java,v 1.5 2004/02/08 23:57:09 ian Exp $
*/
public class Undent {
//+
/** the default number of spaces to remove. */
int nSpaces = 2;
//-
public static void main(String[] av) {
Undent c = new Undent();
if (av.length == 0)
c.process(new BufferedReader(
new InputStreamReader(System.in)));
else for (int i=0; i<av.length; i++) {
try {
c.process(new BufferedReader(new FileReader(av[i])));
} catch (FileNotFoundException e) {
System.err.println(e);
}
}
}
/** undent one file, given an open BufferedReader.
* Undent by removing UP TO "nSpaces" leading spaces.
*/
public void process(BufferedReader is) {
//+
// GRRR THIS DOES NOT QUITE WORK - FIX -- Ian
try {
String inputLine;
while ((inputLine = is.readLine()) != null) {
int i;
for (i=0; i<nSpaces; i++) {
if (!Character.isWhitespace(inputLine.charAt(i)))
break;
}
System.out.println(inputLine.substring(i));
}
is.close();
//-
} catch (IOException e) {
System.out.println("IOException: " + e);
}
}
//-
}
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