From 1ea63ef8be1cc54dd0de9d82c684713a1dcf1e06 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Fri, 23 Sep 2005 21:31:04 +0000 Subject: Imported Classpath 0.18. * sources.am, Makefile.in: Updated. * Makefile.am (nat_source_files): Removed natProxy.cc. * java/lang/reflect/natProxy.cc: Removed. * gnu/classpath/jdwp/VMFrame.java, gnu/classpath/jdwp/VMIdManager.java, gnu/classpath/jdwp/VMVirtualMachine.java, java/lang/reflect/VMProxy.java: New files. 2005-09-23 Thomas Fitzsimmons * scripts/makemake.tcl (verbose): Add gnu/java/awt/peer/qt to BC list. 2005-09-23 Thomas Fitzsimmons * gnu/java/net/DefaultContentHandlerFactory.java (getContent): Remove ClasspathToolkit references. 2005-09-23 Thomas Fitzsimmons * gnu/awt/xlib/XCanvasPeer.java: Add new peer methods. * gnu/awt/xlib/XFramePeer.java: Likewise. * gnu/awt/xlib/XGraphicsConfiguration.java: Likewise. 2005-09-23 Thomas Fitzsimmons * Makefile.am (libgcjawt_la_SOURCES): Remove jawt.c. Add classpath/native/jawt/jawt.c. * Makefile.in: Regenerate. * jawt.c: Remove file. * include/Makefile.am (tool_include__HEADERS): Remove jawt.h and jawt_md.h. Add ../classpath/include/jawt.h and ../classpath/include/jawt_md.h. * include/Makefile.in: Regenerate. * include/jawt.h: Regenerate. * include/jawt_md.h: Regenerate. From-SVN: r104586 --- libjava/classpath/java/lang/Character.java | 165 +++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) (limited to 'libjava/classpath/java/lang/Character.java') diff --git a/libjava/classpath/java/lang/Character.java b/libjava/classpath/java/lang/Character.java index 4eac1476184..1e4f219a15f 100644 --- a/libjava/classpath/java/lang/Character.java +++ b/libjava/classpath/java/lang/Character.java @@ -1456,6 +1456,57 @@ public final class Character implements Serializable, Comparable */ private static final int MIRROR_MASK = 0x40; + /** + * Min value for supplementary code point. + * + * @since 1.5 + */ + public static final int MIN_SUPPLEMENTARY_CODE_POINT = 0x10000; + + /** + * Min value for code point. + * + * @since 1.5 + */ + public static final int MIN_CODE_POINT = 0; + + + /** + * Max value for code point. + * + * @since 1.5 + */ + public static final int MAX_CODE_POINT = 0x010ffff; + + + /** + * Minimum high surrrogate code in UTF-16 encoding. + * + * @since 1.5 + */ + public static final char MIN_HIGH_SURROGATE = '\ud800'; + + /** + * Maximum high surrrogate code in UTF-16 encoding. + * + * @since 1.5 + */ + public static final char MAX_HIGH_SURROGATE = '\udbff'; + + /** + * Minimum low surrrogate code in UTF-16 encoding. + * + * @since 1.5 + */ + public static final char MIN_LOW_SURROGATE = '\udc00'; + + /** + * Maximum low surrrogate code in UTF-16 encoding. + * + * @since 1.5 + */ + public static final char MAX_LOW_SURROGATE = '\udfff'; + /** * Grabs an attribute offset from the Unicode attribute database. The lower * 5 bits are the character type, the next 2 bits are flags, and the top @@ -2250,4 +2301,118 @@ public final class Character implements Serializable, Comparable { return compareTo((Character) o); } + + /** + * Converts a unicode code point to a UTF-16 representation of that + * code point. + * + * @param codePoint the unicode code point + * + * @return the UTF-16 representation of that code point + * + * @throws IllegalArgumentException if the code point is not a valid + * unicode code point + * + * @since 1.5 + */ + public static char[] toChars(int codePoint) + { + char[] result = new char[charCount(codePoint)]; + int ignore = toChars(codePoint, result, 0); + return result; + } + + /** + * Converts a unicode code point to its UTF-16 representation. + * + * @param codePoint the unicode code point + * @param dst the target char array + * @param dstIndex the start index for the target + * + * @return number of characters written to dst + * + * @throws IllegalArgumentException if codePoint is not a + * valid unicode code point + * @throws NullPointerException if dst is null + * @throws IndexOutOfBoundsException if dstIndex is not valid + * in dst or if the UTF-16 representation does not + * fit into dst + * + * @since 1.5 + */ + public static int toChars(int codePoint, char[] dst, int dstIndex) + { + if (!isValidCodePoint(codePoint)) + { + throw new IllegalArgumentException("not a valid code point: " + + codePoint); + } + + int result; + if (isSupplementaryCodePoint(codePoint)) + { + // Write second char first to cause IndexOutOfBoundsException + // immediately. + dst[dstIndex + 1] = (char) ((codePoint & 0x3ff) + + (int) MIN_LOW_SURROGATE ); + dst[dstIndex] = (char) ((codePoint >> 10) + (int) MIN_HIGH_SURROGATE); + result = 2; + } + else + { + dst[dstIndex] = (char) codePoint; + result = 1; + } + return result; + } + + /** + * Return number of 16-bit characters required to represent the given + * code point. + * + * @param codePoint a uncode code point + * + * @return 2 if codePoint >= 0x10000, 1 otherwise. + * + * @since 1.5 + */ + public static int charCount(int codePoint) + { + return + (codePoint >= MIN_SUPPLEMENTARY_CODE_POINT) + ? 2 + : 1; + } + + /** + * Determines whether the specified code point is + * in the range 0x10000 .. 0x10FFFF, i.e. the character is within the Unicode + * supplementary character range. + * + * @param codePoint a Unicode code point + * + * @return true if code point is in supplementary range + * + * @since 1.5 + */ + public static boolean isSupplementaryCodePoint(int codePoint) + { + return codePoint >= MIN_SUPPLEMENTARY_CODE_POINT + && codePoint <= MAX_CODE_POINT; + } + + /** + * Determines whether the specified code point is + * in the range 0x0000 .. 0x10FFFF, i.e. it is a valid Unicode code point. + * + * @param codePoint a Unicode code point + * + * @return true if code point is valid + * + * @since 1.5 + */ + public static boolean isValidCodePoint(int codePoint) + { + return codePoint >= MIN_CODE_POINT && codePoint <= MAX_CODE_POINT; + } } // class Character -- cgit v1.2.3