From a1f4e5ed0ad7c060fc1b90c3b363877cb8cca198 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Wed, 5 Sep 2001 00:00:55 +0000 Subject: SimpleDateFormat.java: Re-merged with Classpath. * java/text/SimpleDateFormat.java: Re-merged with Classpath. * gnu/gcj/text/LocaleData.java, gnu/gcj/text/LocaleData_en.java, gnu/gcj/text/LocaleData_en_US.java: Removed. * java/text/DateFormatSymbols.java (clone): Use Classpath implementation. (equals): Simplified. (DateFormatSymbols): Look in gnu.java.locale for information. (DateFormatSymbols(DateFormatSymbols)): Removed. (safeGetResource): Removed. (DateFormatSymbols): Throws MissingResourceException. (ampmsDefault, erasDefault, localPatternCharsDefault, monthsDefault, shortMonthsDefault, shortWeekdaysDefault, weekdaysDefault, zoneStringsDefault): Removed. * java/text/Collator.java (getAvailableLocales): Use modified Classpath implementation. (getInstance): Look in gnu.java.locale for information. (clone): Rewrote. * java/text/MessageFormat.java: Reindented. (clone): Rewrote. * java/text/FieldPosition.java: Merged with Classpath. * java/text/ParsePosition.java: Merged with Classpath. * java/text/Format.java: Merged with Classpath. * java/text/StringCharacterIterator.java (StringCharacterIterator(StringCharacterIterator,int,int)): New constructor from Classpath. * java/text/Annotation.java, java/text/AttributedCharacterIterator.java, java/text/AttributedString.java, java/text/AttributedStringIterator.java: New from Classpath. * java/text/CharacterIterator.java: Copied from Classpath. * java/text/ChoiceFormat.java: Reindented. (clone): Removed. * gnu/java/text/BaseBreakIterator.java, gnu/java/text/CharacterBreakIterator.java, gnu/java/text/LineBreakIterator.java, gnu/java/text/LocaleData_en.java, gnu/java/text/LocaleData_en_US.java, gnu/java/text/SentenceBreakIterator.java, gnu/java/text/WordBreakIterator.java: Renamed from gnu/gcj/text/*. * gnu/gcj/text/BaseBreakIterator.java (last): Advance past final character. * java/text/BreakIterator.java (getAvailableLocales): Use Classpath implementation. (getInstance): Look in gnu.java.locale for information. (getCharacterInstance, getLineInstance, getSentenceInstance, getWordInstance): Look in gnu.java.text for implementations. * java/text/DecimalFormatSymbols.java: Reindented (clone): Use Classpath implementation. (DecimalFormatSymbols(DecimalFormatSymbols)): Removed. (DecimalFormatSymbols(Locale)): Look in gnu.java.locale for information. * java/text/DateFormat.java: Merged with Classpath. (getAvailableLocales): Use Classpath implementation. (format(Object,StringBuffer,FieldPosition)): Minor cleanup. (computeInstance): Look in gnu.java.locale for information. * java/text/NumberFormat.java: Reindented. (computeInstance): Look in gnu.java.locale for information. (getAvailableLocales): Use implementation from Classpath. (setMaximumIntegerDigits): Likewise. (setMinimumIntegerDigits): Likewise. (setMaximumFractionDigits): Likewise. (clone): Removed. * java/text/DecimalFormat.java: Reindented. * gnu/java/locale/LocaleInformation_en.java: Copied from Classpath. * gnu/java/locale/LocaleInformation_en_US.java: Copied from Classpath. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Added all new files. (ordinary_java_source_files): Renamed or removed gnu/gcj/text/*. * java/security/spec/AlgorithmParameterSpec.java, java/security/spec/KeySpec.java: Re-merged with Classpath. From-SVN: r45390 --- libjava/gnu/java/text/LineBreakIterator.java | 185 +++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 libjava/gnu/java/text/LineBreakIterator.java (limited to 'libjava/gnu/java/text/LineBreakIterator.java') diff --git a/libjava/gnu/java/text/LineBreakIterator.java b/libjava/gnu/java/text/LineBreakIterator.java new file mode 100644 index 00000000000..14c1b70e4cb --- /dev/null +++ b/libjava/gnu/java/text/LineBreakIterator.java @@ -0,0 +1,185 @@ +/* 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. + +As a special exception, if you link this library with other files to +produce an executable, this library does not by itself cause the +resulting executable to be covered by the GNU General Public License. +This exception does not however invalidate any other reasons why the +executable file might be covered by the GNU General Public License. */ + + +package gnu.java.text; + +import java.text.BreakIterator; +import java.text.CharacterIterator; + +/** + * @author Tom Tromey + * @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(); + } +} -- cgit v1.2.3