+++ /dev/null
-/* LineBreakIterator.java - Default word BreakIterator.
- Copyright (C) 1999, 2001 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package gnu.java.text;
-
-import java.text.BreakIterator;
-import java.text.CharacterIterator;
-
-/**
- * @author Tom Tromey <tromey@cygnus.com>
- * @date March 22, 1999
- * Written using The Unicode Standard, Version 2.0.
- */
-
-public class LineBreakIterator extends BaseBreakIterator
-{
- public Object clone ()
- {
- return new LineBreakIterator (this);
- }
-
- public LineBreakIterator ()
- {
- iter = null;
- }
-
- private LineBreakIterator (LineBreakIterator other)
- {
- iter = (CharacterIterator) other.iter.clone();
- }
-
- // Some methods to tell us different properties of characters.
- private final boolean isNb (char c)
- {
- return (c == 0x00a0 // NO-BREAK SPACE
- || c == 0x2011 // NON-BREAKING HYPHEN
- || c == 0xfeff); // ZERO WITH NO-BREAK SPACE
- }
- private final boolean isClose (int type)
- {
- return (type == Character.END_PUNCTUATION
- // Unicode book says "comma, period, ...", which I take to
- // mean "Po" class.
- || type == Character.OTHER_PUNCTUATION);
- }
- private final boolean isIdeo (char c)
- {
- return (c >= 0x3040 && c <= 0x309f // Hiragana
- || c >= 0x30a0 && c <= 0x30ff // Katakana
- || c >= 0x4e00 && c <= 0x9fff // Han
- || c >= 0x3100 && c <= 0x312f); // Bopomofo
- }
-
- public int next ()
- {
- int end = iter.getEndIndex();
- if (iter.getIndex() == end)
- return DONE;
-
- while (iter.getIndex() < end)
- {
- char c = iter.current();
- int type = Character.getType(c);
-
- char n = iter.next();
-
- if (n == CharacterIterator.DONE
- || type == Character.PARAGRAPH_SEPARATOR
- || type == Character.LINE_SEPARATOR)
- break;
-
- // Handle two cases where we must scan for non-spacing marks.
- int start = iter.getIndex();
- if (type == Character.SPACE_SEPARATOR
- || type == Character.START_PUNCTUATION
- || isIdeo (c))
- {
- while (n != CharacterIterator.DONE
- && Character.getType(n) == Character.NON_SPACING_MARK)
- n = iter.next();
- if (n == CharacterIterator.DONE)
- break;
-
- if (type == Character.SPACE_SEPARATOR)
- {
- int nt = Character.getType(n);
- if (nt != Character.NON_SPACING_MARK
- && nt != Character.SPACE_SEPARATOR
- && ! isNb (n))
- break;
- }
- else if (type == Character.START_PUNCTUATION)
- {
- if (isIdeo (n))
- {
- // Open punctuation followed by non spacing marks
- // and then ideograph does not have a break in
- // it. So skip all this.
- start = iter.getIndex();
- }
- }
- else
- {
- // Ideograph preceded this character.
- if (isClose (Character.getType(n)))
- break;
- }
- }
- iter.setIndex(start);
- }
-
- return iter.getIndex();
- }
-
- public int previous ()
- {
- int start = iter.getBeginIndex();
- if (iter.getIndex() == start)
- return DONE;
-
- while (iter.getIndex() >= start)
- {
- char c = iter.previous();
- if (c == CharacterIterator.DONE)
- break;
- int type = Character.getType(c);
-
- char n = iter.previous();
- if (n == CharacterIterator.DONE)
- break;
- iter.next();
-
- int nt = Character.getType(n);
- // Break after paragraph separators.
- if (nt == Character.PARAGRAPH_SEPARATOR
- || nt == Character.LINE_SEPARATOR)
- break;
-
- // Skip non-spacing marks.
- int init = iter.getIndex();
- while (n != CharacterIterator.DONE && nt == Character.NON_SPACING_MARK)
- {
- n = iter.previous();
- nt = Character.getType(n);
- }
-
- if (nt == Character.SPACE_SEPARATOR
- && type != Character.SPACE_SEPARATOR
- && type != Character.NON_SPACING_MARK
- && ! isNb (c))
- break;
- if (! isClose (type) && isIdeo (n))
- break;
- if (isIdeo (c) && nt != Character.START_PUNCTUATION)
- break;
- iter.setIndex(init);
- }
-
- return iter.getIndex();
- }
-}
projects / msp430-gcc.git / blobdiff