44f4c68801
git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@272 f0f2a975-2e09-46c8-9428-3b39399b9f3c
78 lines
2.6 KiB
Java
78 lines
2.6 KiB
Java
/************************************************************************
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*
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* UnicodeStringParser.java
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*
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* Copyright: 2002-2007 by Henrik Just
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*
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* This file is part of Writer2LaTeX.
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*
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* Writer2LaTeX is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Writer2LaTeX is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Writer2LaTeX. If not, see <http://www.gnu.org/licenses/>.
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*
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* Version 0.5 (2007-07-24)
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*
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*/
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package writer2latex.latex.i18n;
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// Helper class: Parse a unicode string.
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// Note: Some 8-bit fonts have additional "spacer" characters that are used
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// for manual placement of accents. These are ignored between the base character
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// and the combining character, thus we are parsing according to the rule
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// <base char> <spacer char>* <combining char>?
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class UnicodeStringParser {
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private UnicodeTable table; // the table to use
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private String s; // the string
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private int i; // the current index
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private int nEnd; // the maximal index
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private char c; // the current character
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private char cc; // the current combining character
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protected void reset(UnicodeTable table, String s, int i, int nEnd) {
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this.table=table;
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this.s=s;
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this.i=i;
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this.nEnd=nEnd;
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}
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protected boolean next() {
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if (i>=nEnd) { return false; }
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// Pick up base character
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c = s.charAt(i++);
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if (table.getCharType(c)==UnicodeCharacter.COMBINING) {
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// Lonely combining character - combine with space
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cc = c;
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c = ' ';
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return true;
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}
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// Skip characters that should be ignored
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while (i<s.length() && table.getCharType(s.charAt(i))==UnicodeCharacter.IGNORE) { i++; }
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// Pick up combining character, if any
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if (i<s.length() && table.getCharType(s.charAt(i))==UnicodeCharacter.COMBINING) {
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cc = s.charAt(i++);
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}
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else {
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cc = '\u0000';
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}
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return true;
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}
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protected char getChar() { return c; }
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protected boolean hasCombiningChar() { return cc!='\u0000'; }
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protected char getCombiningChar() { return cc; }
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}
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