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Diffstat (limited to 'libjava/gnu/gcj/text/SentenceBreakIterator.java')
| -rw-r--r-- | libjava/gnu/gcj/text/SentenceBreakIterator.java | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/libjava/gnu/gcj/text/SentenceBreakIterator.java b/libjava/gnu/gcj/text/SentenceBreakIterator.java deleted file mode 100644 index af2ccf10b93..00000000000 --- a/libjava/gnu/gcj/text/SentenceBreakIterator.java +++ /dev/null @@ -1,226 +0,0 @@ -// Default sentence BreakIterator. - -/* Copyright (C) 1999 Free Software Foundation - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - -package gnu.gcj.text; - -import java.text.BreakIterator; -import java.text.CharacterIterator; - -/** - * @author Tom Tromey <tromey@cygnus.com> - * @date March 23, 1999 - * Written using The Unicode Standard, Version 2.0. - */ - -public class SentenceBreakIterator extends BaseBreakIterator -{ - public Object clone () - { - return new SentenceBreakIterator (this); - } - - public SentenceBreakIterator () - { - iter = null; - } - - private SentenceBreakIterator (SentenceBreakIterator other) - { - iter = (CharacterIterator) other.iter.clone(); - } - - public int next () - { - int end = iter.getEndIndex(); - if (iter.getIndex() == end) - return DONE; - - while (iter.getIndex() < end) - { - char c = iter.current(); - if (c == CharacterIterator.DONE) - break; - int type = Character.getType(c); - - char n = iter.next(); - if (n == CharacterIterator.DONE) - break; - - // Always break after paragraph separator. - if (type == Character.PARAGRAPH_SEPARATOR) - break; - - if (c == '!' || c == '?') - { - // Skip close punctuation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.END_PUNCTUATION) - n = iter.next(); - // Skip spaces. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.SPACE_SEPARATOR) - n = iter.next(); - // Skip optional paragraph separator. - if (n != CharacterIterator.DONE - && Character.getType(n) == Character.PARAGRAPH_SEPARATOR) - n = iter.next(); - - // There's always a break somewhere after `!' or `?'. - break; - } - - if (c == '.') - { - int save = iter.getIndex(); - // Skip close punctuation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.END_PUNCTUATION) - n = iter.next(); - // Skip spaces. We keep count because we need at least - // one for this period to represent a terminator. - int spcount = 0; - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.SPACE_SEPARATOR) - { - n = iter.next(); - ++spcount; - } - if (spcount > 0) - { - int save2 = iter.getIndex(); - // Skip over open puncutation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.START_PUNCTUATION) - n = iter.next(); - // Next character must not be lower case. - if (n == CharacterIterator.DONE - || ! Character.isLowerCase(n)) - { - iter.setIndex(save2); - break; - } - } - iter.setIndex(save); - } - } - - return iter.getIndex(); - } - - private final int previous_internal () - { - int start = iter.getBeginIndex(); - if (iter.getIndex() == start) - return DONE; - - while (iter.getIndex() >= start) - { - char c = iter.previous(); - if (c == CharacterIterator.DONE) - break; - - char n = iter.previous(); - if (n == CharacterIterator.DONE) - break; - iter.next(); - int nt = Character.getType(n); - - if (! Character.isLowerCase(c) - && (nt == Character.START_PUNCTUATION - || nt == Character.SPACE_SEPARATOR)) - { - int save = iter.getIndex(); - int save_nt = nt; - char save_n = n; - // Skip open punctuation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.START_PUNCTUATION) - n = iter.previous(); - if (n == CharacterIterator.DONE) - break; - if (Character.getType(n) == Character.SPACE_SEPARATOR) - { - // Must have at least once space after the `.'. - int save2 = iter.getIndex(); - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.SPACE_SEPARATOR) - n = iter.previous(); - // Skip close punctuation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.END_PUNCTUATION) - n = iter.previous(); - if (n == CharacterIterator.DONE || n == '.') - { - // Communicate location of actual end. - period = iter.getIndex(); - iter.setIndex(save2); - break; - } - } - iter.setIndex(save); - nt = save_nt; - n = save_n; - } - - if (nt == Character.PARAGRAPH_SEPARATOR) - { - // Communicate location of actual end. - period = iter.getIndex(); - break; - } - else if (nt == Character.SPACE_SEPARATOR - || nt == Character.END_PUNCTUATION) - { - int save = iter.getIndex(); - // Skip spaces. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.SPACE_SEPARATOR) - n = iter.previous(); - // Skip close punctuation. - while (n != CharacterIterator.DONE - && Character.getType(n) == Character.END_PUNCTUATION) - n = iter.previous(); - int here = iter.getIndex(); - iter.setIndex(save); - if (n == CharacterIterator.DONE || n == '!' || n == '?') - { - // Communicate location of actual end. - period = here; - break; - } - } - else if (n == '!' || n == '?') - { - // Communicate location of actual end. - period = iter.getIndex(); - break; - } - } - - return iter.getIndex(); - } - - public int previous () - { - // We want to skip over the first sentence end to the second one. - // However, at the end of the string we want the first end. - int here = iter.getIndex(); - period = here; - int first = previous_internal (); - if (here == iter.getEndIndex() || first == DONE) - return first; - iter.setIndex(period); - return previous_internal (); - } - - // This is used for communication between previous and - // previous_internal. - private int period; -} |