jars/icu4j-52_1/tools/misc/src/com/ibm/icu/dev/tool/layout/ShapingTypeBuilder.java

   1 /*
   2  *******************************************************************************
   3  * Copyright (C) 1996-2005, International Business Machines Corporation and    *
   4  * others. All Rights Reserved.                                                *
   5  *******************************************************************************
   6  *
   7  */
   8
   9 package com.ibm.icu.dev.tool.layout;
  10
  11 import java.io.PrintStream;
  12
  13 import com.ibm.icu.lang.UCharacter;
  14 import com.ibm.icu.lang.UProperty;
  15 import com.ibm.icu.text.UnicodeSet;
  16
  17 /**
  18  * @author emader
  19  *
  20  * TODO To change the template for this generated type comment go to
  21  * Window - Preferences - Java - Code Style - Code Templates
  22  */
  23 public class ShapingTypeBuilder extends OpenTypeTableWriter
  24 {
  25     private ClassTable classTable;
  26
  27     public ShapingTypeBuilder()
  28     {
  29         classTable = new ClassTable();
  30     }
  31
  32     public void writeTable(PrintStream output)
  33     {
  34         classTable.writeClassTable(this);
  35         output.println("const le_uint8 ArabicShaping::shapingTypeTable[] = {");
  36
  37         dumpTable(output, 8);
  38         output.println("};\n");
  39     }
  40
  41     // TODO: The UnicodeSet is constrained to the BMP because the ClassTable data structure can
  42     // only handle 16-bit entries. This is probably OK as long as there aren't any joining scripts
  43     // outside of the BMP...
  44     public void buildShapingTypes(String filename)
  45     {
  46         UnicodeSet shapingTypes = new UnicodeSet("[[\\P{Joining_Type=Non_Joining}] & [\\u0000-\\uFFFF]]");
  47         int count = shapingTypes.size();
  48
  49         System.out.println("There are " + count + " characters with a joining type.");
  50
  51         for(int i = 0; i < count; i += 1) {
  52             int ch = shapingTypes.charAt(i);
  53
  54             classTable.addMapping(ch, UCharacter.getIntPropertyValue(ch, UProperty.JOINING_TYPE));
  55         }
  56
  57         LigatureModuleWriter writer = new LigatureModuleWriter();
  58         String[] includeFiles = {"LETypes.h", "ArabicShaping.h"};
  59
  60         writer.openFile(filename);
  61         writer.writeHeader(null, includeFiles);
  62         writer.writeTable(this);
  63         writer.writeTrailer();
  64         writer.closeFile();
  65     }
  66
  67     public static void main(String[] args)
  68     {
  69         ShapingTypeBuilder stb = new ShapingTypeBuilder();
  70
  71         stb.buildShapingTypes(args[0]);
  72     }
  73 }