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Diffstat (limited to 'libjava/gnu/java/text/LineBreakIterator.java')
| -rw-r--r-- | libjava/gnu/java/text/LineBreakIterator.java | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/libjava/gnu/java/text/LineBreakIterator.java b/libjava/gnu/java/text/LineBreakIterator.java deleted file mode 100644 index ad07479fb78..00000000000 --- a/libjava/gnu/java/text/LineBreakIterator.java +++ /dev/null @@ -1,194 +0,0 @@ -/* LineBreakIterator.java - Default word BreakIterator. - Copyright (C) 1999, 2001, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 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.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 () - { - } - - 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(); - } -} |