Initial import

git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@5 f0f2a975-2e09-46c8-9428-3b39399b9f3c

source/java/writer2latex/latex/i18n/UnicodeStringParser.java

@@ -0,0 +1,79 @@
+/************************************************************************
+ *
+ *  UnicodeStringParser.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: 2002-2007 by Henrik Just
+ *
+ *  All Rights Reserved.
+ * 
+ *  Version 0.5 (2007-07-24) 
+ * 
+ */
+
+package writer2latex.latex.i18n;
+
+// Helper class: Parse a unicode string.
+// Note: Some 8-bit fonts have additional "spacer" characters that are used
+// for manual placement of accents. These are ignored between the base character
+// and the combining character, thus we are parsing according to the rule
+// <base char> <spacer char>* <combining char>?
+class UnicodeStringParser {
+    private UnicodeTable table; // the table to use
+    private String s; // the string
+    private int i; // the current index
+    private int nEnd; // the maximal index
+    private char c; // the current character
+    private char cc; // the current combining character
+
+    protected void reset(UnicodeTable table, String s, int i, int nEnd) {
+        this.table=table;
+        this.s=s;
+        this.i=i;
+        this.nEnd=nEnd;
+    }
+
+    protected boolean next() {
+        if (i>=nEnd) { return false; }
+        // Pick up base character
+        c = s.charAt(i++);
+        if (table.getCharType(c)==UnicodeCharacter.COMBINING) {
+            // Lonely combining character - combine with space
+            cc = c;
+            c = ' ';
+            return true;
+        }
+		
+        // Skip characters that should be ignored
+        while (i<s.length() && table.getCharType(s.charAt(i))==UnicodeCharacter.IGNORE) { i++; }
+        // Pick up combining character, if any
+        if (i<s.length() && table.getCharType(s.charAt(i))==UnicodeCharacter.COMBINING) {
+            cc = s.charAt(i++);
+        }
+        else {
+            cc = '\u0000';
+        }
+		
+        return true;
+    }
+	
+    protected char getChar() { return c; }
+
+    protected boolean hasCombiningChar() { return cc!='\u0000'; }
+	
+    protected char getCombiningChar() { return cc; }
+	
+}