src/codegen/code-point-mapping.xsl

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  Copyright 1999-2004 The Apache Software Foundation

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
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<!-- $Id$ -->
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="text"/>
  <xsl:variable name='glyphlists'
                select="document('glyphlist.xml')/glyphlist-set"/>

  <xsl:template match="encoding-set">
package org.apache.fop.fonts;

import java.util.Map;
import java.util.Collections;

public class CodePointMapping {
    private char[] latin1Map;
    private char[] characters;
    private char[] codepoints;
    private CodePointMapping(int [] table) {
        int nonLatin1 = 0;
        latin1Map = new char[256];
        for(int i = 0; i &lt; table.length; i += 2) {
           if(table[i+1] &lt; 256)
               latin1Map[table[i+1]] = (char) table[i];
           else
               ++nonLatin1;
        }
        characters = new char[nonLatin1];
        codepoints = new char[nonLatin1];
        int top = 0;
        for(int i = 0; i &lt; table.length; i += 2) {
            char c = (char) table[i+1];
            if(c >= 256) {
               ++top;
               for(int j = top - 1; j >= 0; --j) {
                   if(j > 0 &amp;&amp; characters[j-1] >= c) {
                       characters[j] = characters[j-1];
                       codepoints[j] = codepoints[j-1];
                   } else {
                       characters[j] = c;
                       codepoints[j] = (char) table[i];
                       break;
                   }
               }
            }
        }
    }
    public final char mapChar(char c) {
        if(c &lt; 256) {
            return latin1Map[c];
        } else {
            int bot = 0, top = characters.length - 1;
            while(top >= bot) {
                int mid = (bot + top) / 2;
                char mc = characters[mid];

                if(c == mc)
                    return codepoints[mid];
                else if(c &lt; mc)
                    top = mid - 1;
                else
                    bot = mid + 1;
            }
            return 0;
        }
    }

    private static Map mappings;
    static {
        mappings = Collections.synchronizedMap(new java.util.HashMap());
    }
    public static CodePointMapping getMapping(String encoding) {
        CodePointMapping mapping = (CodePointMapping) mappings.get(encoding);
        if(mapping != null) {
            return mapping;
        } <xsl:apply-templates mode="get"/>
        else {
            return null;
        }
    }
<xsl:apply-templates mode="table"/>
}
  </xsl:template>

  <xsl:template match="encoding" mode="get">
        else if(encoding.equals("<xsl:value-of select="@id"/>")) {
            mapping = new CodePointMapping(enc<xsl:value-of select="@id"/>);
            mappings.put("<xsl:value-of select="@id"/>", mapping);
            return mapping;
        }
  </xsl:template>

  <xsl:template match="encoding" mode="table">
    <xsl:variable name="glyphlist-name" select="@glyphlist"/>
    <xsl:variable name="glyphlist"
                  select="$glyphlists/glyphlist[@id=$glyphlist-name]"/>
    private static final int[] enc<xsl:value-of select="@id"/>
        = {<xsl:for-each select="glyph">
  <xsl:variable name="codepoint" select="@codepoint"/>
  <xsl:variable name="name" select="@name"/><xsl:for-each select="$glyphlist/glyph[@name=$name]">
            0x<xsl:value-of select="$codepoint"/>, 0x<xsl:value-of select="@codepoint"/>, // <xsl:value-of select="$name"/>
</xsl:for-each></xsl:for-each>
        };
  </xsl:template>
</xsl:stylesheet>