Source for gnu.java.rmi.rmic.TabbedWriter

   1: /*
   2:   Copyright (c) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10:  
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package gnu.java.rmi.rmic;
  39: 
  40: import java.io.FilterWriter;
  41: import java.io.Writer;
  42: import java.io.IOException;
  43: 
  44: public class TabbedWriter
  45:     extends FilterWriter {
  46: 
  47: private static final String defaultTabstring = "    ";
  48: private char[] tabstring; 
  49: private int tabs;
  50: 
  51: public TabbedWriter(Writer o) {
  52:     this(o, defaultTabstring);
  53: }
  54: 
  55: public TabbedWriter(Writer o, String str) {
  56:     super(o);
  57:     tabs = 0;
  58:     tabstring = str.toCharArray();
  59: }
  60: 
  61: public void write(int c) throws IOException {
  62:     out.write(c);
  63:     if (c == '\n') {
  64:         for (int i = 0; i < tabs; i++) {
  65:             out.write(tabstring, 0, tabstring.length);
  66:         }
  67:     }
  68: }
  69: 
  70: public void write(char cbuf[], int off, int len) throws IOException {
  71:     for (int i = 0; i < len; i++) {
  72:         write((int)cbuf[i+off]);
  73:     }
  74: }
  75: 
  76: public void write(String str, int off, int len) throws IOException {
  77:     write(str.toCharArray(), off, len);
  78: }
  79: 
  80: public void unindent() throws IOException {
  81:     unindent(1);
  82: }
  83: 
  84: public void unindent(int nr) throws IOException {
  85:     indent(-nr);
  86: }
  87: 
  88: public void indent() throws IOException {
  89:     indent(1);
  90: }
  91: 
  92: public void indent(int nr) throws IOException {
  93:     tabs += nr;
  94:     if (tabs < 0) {
  95:         tabs = 0;
  96:     }
  97:     write((int)'\n');
  98: }
  99: 
 100: }