126 lines
3.7 KiB
Java
126 lines
3.7 KiB
Java
/**
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*******************************************************************************
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* Copyright (C) 1996-2001, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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* $Source: /xsrl/Nsvn/icu/unicodetools/com/ibm/text/utility/IndentWriter.java,v $
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* $Date: 2001/08/31 00:19:16 $
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* $Revision: 1.2 $
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*
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*******************************************************************************
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*/
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package com.ibm.text.utility;
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import java.io.*;
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public class IndentWriter extends Writer {
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public IndentWriter(Writer writer) {
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this.writer = writer;
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this.width = 30000;
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this.separator = " ";
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}
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public IndentWriter(OutputStream writer, String encoding)
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throws UnsupportedEncodingException{
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this.writer = new OutputStreamWriter(writer, encoding);
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this.width = 30000;
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this.separator = " ";
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}
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public void setSeparator(String separator) {
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this.separator = separator;
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}
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public String getSeparator() {
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return separator;
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}
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public void setWidth(int width) {
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this.width = width;
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}
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public int getWidth() {
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return width;
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}
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public void indentBy(int indentDelta) throws IOException {
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this.indent += indentDelta;
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flush();
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}
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public void setIndent(int indent) {
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this.indent = indent;
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}
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public int getIndent() {
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return indent;
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}
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/*
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public void write(String cbuf, int off, int len) throws IOException {
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if (buffer.length() + len > width) {
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flushLine();
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buffer.append(" ".substring(0,indent));
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buffer.append("(" + indent + ") ");
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} else {
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buffer.append(separator);
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}
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buffer.append(cbuf, off, len);
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}
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public void write(String string) throws IOException {
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write(string,0,string.length());
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}
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*/
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public void write(int indent, String string) throws IOException {
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setIndent(indent);
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write(string,0,string.length());
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}
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public void writeln(int indent, String string) throws IOException {
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write(indent, string);
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flushLine();
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}
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public void writeln(String string) throws IOException {
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write(string);
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flushLine();
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}
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public void writeln() throws IOException {
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flushLine();
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}
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public void write(char cbuf[], int off, int len) throws IOException {
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if (buffer.length() == 0) {
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bufferIndent = indent;
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} else if (bufferIndent + buffer.length() + separator.length() + len > width) {
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flushLine();
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} else {
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buffer.append(separator);
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}
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buffer.append(cbuf, off, len);
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}
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public void flushLine() throws IOException {
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if (buffer.length() != 0) { // indent
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writer.write(" ",0,bufferIndent);
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writer.write(buffer.toString());
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writer.write(EOL);
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buffer.setLength(0);
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}
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}
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public void flush() throws IOException {
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flushLine();
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writer.flush();
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}
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public void close() throws IOException {
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flush();
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writer.close();
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}
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private Writer writer;
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private StringBuffer buffer = new StringBuffer(200);
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private int width;
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private int indent;
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private int bufferIndent;
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private String separator;
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private static String EOL;
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static { // gets platform-specific eol
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StringWriter foo = new StringWriter();
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PrintWriter fii = new PrintWriter(foo);
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fii.println();
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fii.flush();
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EOL = foo.toString();
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}
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} |