1 /* 2 ******************************************************************************* 3 * Copyright (C) 2002-2012, International Business Machines Corporation and * 4 * others. All Rights Reserved. * 5 ******************************************************************************* 6 */ 7 package com.ibm.icu.dev.util; 8 9 import com.ibm.icu.impl.Utility; 10 import com.ibm.icu.text.UTF16; 11 12 public abstract class Quoter { 13 private static boolean DEBUG = false; 14 15 protected boolean quoting = false; 16 protected StringBuffer output = new StringBuffer(); 17 18 public void setQuoting(boolean value) { 19 quoting = value; 20 } 21 public boolean isQuoting() { 22 return quoting; 23 } 24 public void clear() { 25 quoting = false; 26 output.setLength(0); 27 } 28 public int length() { 29 return output.length(); 30 } 31 public Quoter append(String string) { 32 output.append(string); 33 return this; 34 } 35 public Quoter append(int codepoint) { 36 return append(UTF16.valueOf(codepoint)); 37 } 38 // warning, allows access to internals 39 public String toString() { 40 setQuoting(false); // finish quoting 41 return output.toString(); 42 } 43 /** 44 * Implements standard ICU rule quoting 45 */ 46 public static class RuleQuoter extends Quoter { 47 private StringBuffer quoteBuffer = new StringBuffer(); 48 public void setQuoting(boolean value) { 49 if (quoting == value) return; 50 if (quoting) { // stop quoting 51 Utility.appendToRule(output, (int)-1, true, false, quoteBuffer); // close previous quote 52 } 53 quoting = value; 54 } 55 public Quoter append(String s) { 56 if (DEBUG) System.out.println("\"" + s + "\""); 57 if (quoting) { 58 Utility.appendToRule(output, s, false, false, quoteBuffer); 59 } else { 60 output.append(s); 61 } 62 return this; 63 } 64 } 65 }
