diff options
Diffstat (limited to 'src/java/org/apache/fop/util/CharUtilities.java')
| -rw-r--r-- | src/java/org/apache/fop/util/CharUtilities.java | 74 |
1 files changed, 56 insertions, 18 deletions
diff --git a/src/java/org/apache/fop/util/CharUtilities.java b/src/java/org/apache/fop/util/CharUtilities.java index 43c2c3e41..f200c3e2f 100644 --- a/src/java/org/apache/fop/util/CharUtilities.java +++ b/src/java/org/apache/fop/util/CharUtilities.java @@ -1,5 +1,5 @@ /* - * Copyright 1999-2005 The Apache Software Foundation. + * Copyright 1999-2006 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -53,9 +53,13 @@ public class CharUtilities { public static final int XMLWHITESPACE = 4; + /** normal space */ + public static final char SPACE = '\u0020'; + /** non-breaking space */ + public static final char NBSPACE = '\u00A0'; /** zero-width space */ public static final char ZERO_WIDTH_SPACE = '\u200B'; - /** zero-width no-break space */ + /** zero-width no-break space (= byte order mark) */ public static final char ZERO_WIDTH_NOBREAK_SPACE = '\uFEFF'; @@ -89,22 +93,31 @@ public class CharUtilities { * @return True if the character is a normal space */ public static boolean isBreakableSpace(char c) { - return (c == ' ' - || (c >= '\u2000' && c <= '\u200B')); -// c == '\u2000' // en quad -// c == '\u2001' // em quad -// c == '\u2002' // en space -// c == '\u2003' // em space -// c == '\u2004' // three-per-em space -// c == '\u2005' // four--per-em space -// c == '\u2006' // six-per-em space -// c == '\u2007' // figure space -// c == '\u2008' // punctuation space -// c == '\u2009' // thin space -// c == '\u200A' // hair space -// c == '\u200B' // zero width space + return (c == SPACE || isFixedWidthSpace(c)); } - + + /** + * Method to determine if the character is a (breakable) fixed-width space. + * @param c the character to check + * @return true if the character has a fixed-width + */ + public static boolean isFixedWidthSpace(char c) { + return (c >= '\u2000' && c <= '\u200B') || c == '\u3000'; +// c == '\u2000' // en quad +// c == '\u2001' // em quad +// c == '\u2002' // en space +// c == '\u2003' // em space +// c == '\u2004' // three-per-em space +// c == '\u2005' // four--per-em space +// c == '\u2006' // six-per-em space +// c == '\u2007' // figure space +// c == '\u2008' // punctuation space +// c == '\u2009' // thin space +// c == '\u200A' // hair space +// c == '\u200B' // zero width space +// c == '\u3000' // ideographic space + } + /** * Method to determine if the character is a nonbreaking * space. @@ -113,7 +126,7 @@ public class CharUtilities { */ public static boolean isNonBreakableSpace(char c) { return - (c == '\u00A0' // no-break space + (c == NBSPACE // no-break space || c == '\u202F' // narrow no-break space || c == '\u3000' // ideographic space || c == ZERO_WIDTH_NOBREAK_SPACE); // zero width no-break space @@ -141,5 +154,30 @@ public class CharUtilities { boolean ret = (isBreakableSpace(c) || isNonBreakableSpace(c)); return ret; } + + /** + * Indicates whether a character is classified as "Alphabetic" by the Unicode standard. + * @param ch the character + * @return true if the character is "Alphabetic" + */ + public static boolean isAlphabetic(char ch) { + //http://www.unicode.org/Public/UNIDATA/UCD.html#Alphabetic + //Generated from: Other_Alphabetic + Lu + Ll + Lt + Lm + Lo + Nl + int generalCategory = Character.getType(ch); + switch (generalCategory) { + case Character.UPPERCASE_LETTER: //Lu + case Character.LOWERCASE_LETTER: //Ll + case Character.TITLECASE_LETTER: //Lt + case Character.MODIFIER_LETTER: //Lm + case Character.OTHER_LETTER: //Lo + case Character.LETTER_NUMBER: //Nl + return true; + default: + //TODO if (ch in Other_Alphabetic) return true; (Probably need ICU4J for that) + //Other_Alphabetic contains mostly more exotic characters + return false; + } + } + } |