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git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@5 f0f2a975-2e09-46c8-9428-3b39399b9f3c
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henrikjust 2009-02-20 09:37:06 +00:00
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source/java/writer2latex/latex/i18n/UnicodeTableHandler.java Normal file
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/************************************************************************
*
* UnicodeTableHandler.java
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Copyright: 2002-2009 by Henrik Just
*
* All Rights Reserved.
*
* Version 1.0 (2009-02-17)
*
*/
package writer2latex.latex.i18n;
import java.util.Hashtable;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
// Helper classs: SAX handler to parse symbols.xml from jar
class UnicodeTableHandler extends DefaultHandler{
private Hashtable tableSet; // collection of all tables
private UnicodeTable table; // the current table
private String sSymbolSets;
private boolean bGlobalReadThisSet;
private boolean bReadThisSet;
private int nGlobalFontencs = 0; // The global fontencodings for current symbol set
private int nFontencs = 0; // The currently active fontencodings
private boolean b8bit = false;
UnicodeTableHandler(Hashtable tableSet, String sSymbolSets){
this.sSymbolSets = sSymbolSets;
this.tableSet = tableSet;
}
public void startElement(String nameSpace, String localName, String qName, Attributes attributes){
if (qName.equals("symbols")) {
//root element - create root table!
table = new UnicodeTable(null);
tableSet.put("root",table);
}
else if (qName.equals("symbol-set")) {
// start a new symbol set; maybe we want to include it?
bGlobalReadThisSet = sSymbolSets.indexOf(attributes.getValue("name")) >= 0;
bReadThisSet = bGlobalReadThisSet;
// Change global and current fontencodings
nGlobalFontencs = ClassicI18n.readFontencs(attributes.getValue("fontenc"));
nFontencs = nGlobalFontencs;
}
else if (qName.equals("special-symbol-set")) {
// start a new special symbol set; this requires a new table
table = new UnicodeTable((UnicodeTable) tableSet.get("root"));
tableSet.put(attributes.getValue("name"),table);
// Read it if it requires nothing, or something we read
bGlobalReadThisSet = attributes.getValue("requires")==null ||
sSymbolSets.indexOf(attributes.getValue("requires")) >= 0;
bReadThisSet = bGlobalReadThisSet;
b8bit = "true".equals(attributes.getValue("eight-bit"));
// Change global and current fontencodings
nGlobalFontencs = ClassicI18n.readFontencs(attributes.getValue("fontenc"));
nFontencs = nGlobalFontencs;
}
else if (qName.equals("symbol-subset")) {
// Do we requires something here?
if (attributes.getValue("requires")!=null) {
bReadThisSet = sSymbolSets.indexOf(attributes.getValue("requires")) >= 0;
}
// Change current fontencodings
nFontencs = ClassicI18n.readFontencs(attributes.getValue("fontenc"));
}
else if (qName.equals("symbol")) {
if (bReadThisSet) {
char c=(char)Integer.parseInt(attributes.getValue("char"),16);
String sEqChar=attributes.getValue("eq-char");
if (sEqChar!=null) { // copy existing definitions, if any
char eqc = (char)Integer.parseInt(sEqChar,16);
if (table.getCharType(eqc)!=UnicodeCharacter.UNKNOWN) {
table.addCharType(c,table.getCharType(eqc));
}
if (table.hasMathChar(eqc)) {
table.addMathChar(c,table.getMathChar(eqc));
}
if (table.hasTextChar(eqc)) {
table.addTextChar(c,table.getTextChar(eqc),table.getFontencs(eqc),table.isDashes(eqc));
}
}
else {
String sType=attributes.getValue("char-type");
String sMath=attributes.getValue("math");
String sText=attributes.getValue("text");
boolean bDashes="true".equals(attributes.getValue("dashes"));
if (sType!=null) table.addCharType(c,sType);
if (sMath!=null) table.addMathChar(c,sMath);
if (sText!=null) table.addTextChar(c,sText,nFontencs,bDashes);
}
}
}
else if (qName.equals("preserve-symbol")) {
if (bReadThisSet) {
String sMode=attributes.getValue("mode");
char c=(char)Integer.parseInt(attributes.getValue("char"),16);
table.addCharType(c,attributes.getValue("char-type"));
if ("math".equals(sMode) || "both".equals(sMode)) {
table.addMathChar(c,Character.toString(c));
}
if ("text".equals(sMode) || "both".equals(sMode)) {
table.addTextChar(c,Character.toString(c),nFontencs,false);
}
}
}
else if (qName.equals("preserve-symbols")) {
if (bReadThisSet) {
String sMode=attributes.getValue("mode");
String sType=attributes.getValue("char-type");
char c1=(char)Integer.parseInt(attributes.getValue("first-char"),16);
char c2=(char)Integer.parseInt(attributes.getValue("last-char"),16);
boolean bMath = "math".equals(sMode) || "both".equals(sMode);
boolean bText = "text".equals(sMode) || "both".equals(sMode);
for (char c=c1; c<=c2; c++) {
table.addCharType(c,sType);
if (bMath) {
table.addMathChar(c,Character.toString(c));
}
if (bText) {
table.addTextChar(c,Character.toString(c),nFontencs,false);
}
}
}
}
}
public void endElement(String nameSpace, String localName, String qName){
if (qName.equals("symbol-subset")) {
// Revert to global setting of reading status
bReadThisSet = bGlobalReadThisSet;
// Revert to global fontencoding
nFontencs = nGlobalFontencs;
}
else if (qName.equals("special-symbol-set")) {
if (b8bit) {
// Row 0 = Row 240 (F0)
// Note: 8-bit fonts are supposed to be relocated to F000..F0FF
// This may fail on import from msword, hence this hack
table.table[0] = table.table[240];
}
b8bit = false;
}
}
}