Undent - remove leading spaces : File Commands « File Input Output « Java

Java
1. 2D Graphics GUI
2. 3D
3. Advanced Graphics
4. Ant
5. Apache Common
6. Chart
7. Class
8. Collections Data Structure
9. Data Type
10. Database SQL JDBC
11. Design Pattern
12. Development Class
13. EJB3
14. Email
15. Event
16. File Input Output
17. Game
18. Generics
19. GWT
20. Hibernate
21. I18N
22. J2EE
23. J2ME
24. JDK 6
25. JNDI LDAP
26. JPA
27. JSP
28. JSTL
29. Language Basics
30. Network Protocol
31. PDF RTF
32. Reflection
33. Regular Expressions
34. Scripting
35. Security
36. Servlets
37. Spring
38. Swing Components
39. Swing JFC
40. SWT JFace Eclipse
41. Threads
42. Tiny Application
43. Velocity
44. Web Services SOA
45. XML
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java » File Input Output » File CommandsScreenshots 
Undent - remove leading spaces
   
/*
 * 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);
        }
    }
  //-
}




           
         
    
    
  
Related examples in the same category
1. Touch: set File Last Modified Time
2. File Copy in Java with NIO
3. File Copy in Java
4. Counts words in a file, outputs results in sorted form
5. Copying a file using channels and buffers
6. Copy files using Java IO APICopy files using Java IO API
7. Mimic the Unix Grep command
8. Grep tools
9. BGrep: a regular expression search utility, like Unix grep
10. File concatenation
11. Compress files using the Java ZIP API
12. Delete file using Java IO API
13. TeePrintStream tees all PrintStream operations into a file, rather like the UNIX tee(1) command
14. Delete a file from within Java, with error handling
15. DirTree - directory lister, like UNIX ls or DOS and VMS dirDirTree - directory lister, like UNIX ls or DOS and VMS dir
16. Program to empty a directory
17. Report on a file's status in Java
18. Simple directory lister
19. Readonly Files
20. List root directoryList root directory
21. Rename a file in Java
22. FNFilter - directory lister using FilenameFilter
23. mkdir examples
24. Program to remove files matching a name in a directory
25. Ls directory lister modified to use FilenameFilterLs directory lister modified to use FilenameFilter
26. Dir Stack Dir Stack
27. Move a File
28. Word Count
29. Diff: text file difference utility.Diff: text file difference utility.
30. Count chars in a File
31. Move File
32. Get file date and time
33. Return readable file size with selected value measure
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.