jdk/make/tools/GenerateCharacter/CharacterData01.java.template
changeset 2 90ce3da70b43
child 2497 903fd9d785ef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/make/tools/GenerateCharacter/CharacterData01.java.template	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,259 @@
+/*
+ * Copyright 2003-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.lang;
+
+/** The CharacterData class encapsulates the large tables once found in
+ *  java.lang.Character. 
+ */
+
+class CharacterData01 extends CharacterData {
+    /* The character properties are currently encoded into 32 bits in the following manner:
+        1 bit   mirrored property
+        4 bits  directionality property
+        9 bits  signed offset used for converting case
+        1 bit   if 1, adding the signed offset converts the character to lowercase
+        1 bit   if 1, subtracting the signed offset converts the character to uppercase
+        1 bit   if 1, this character has a titlecase equivalent (possibly itself)
+        3 bits  0  may not be part of an identifier
+                1  ignorable control; may continue a Unicode identifier or Java identifier
+                2  may continue a Java identifier but not a Unicode identifier (unused)
+                3  may continue a Unicode identifier or Java identifier
+                4  is a Java whitespace character
+                5  may start or continue a Java identifier;
+                   may continue but not start a Unicode identifier (underscores)
+                6  may start or continue a Java identifier but not a Unicode identifier ($)
+                7  may start or continue a Unicode identifier or Java identifier
+                Thus:
+                   5, 6, 7 may start a Java identifier
+                   1, 2, 3, 5, 6, 7 may continue a Java identifier
+                   7 may start a Unicode identifier
+                   1, 3, 5, 7 may continue a Unicode identifier
+                   1 is ignorable within an identifier
+                   4 is Java whitespace
+        2 bits  0  this character has no numeric property
+                1  adding the digit offset to the character code and then
+                   masking with 0x1F will produce the desired numeric value
+                2  this character has a "strange" numeric value
+                3  a Java supradecimal digit: adding the digit offset to the
+                   character code, then masking with 0x1F, then adding 10
+                   will produce the desired numeric value
+        5 bits  digit offset
+        5 bits  character type
+
+        The encoding of character properties is subject to change at any time.
+     */
+
+    int getProperties(int ch) {
+        char offset = (char)ch;
+        int props = $$Lookup(offset);
+        return props;
+    }
+
+    int getType(int ch) {
+        int props = getProperties(ch);
+        return (props & $$maskType);
+    }
+
+    boolean isJavaIdentifierStart(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskIdentifierInfo) >= $$lowJavaStart);
+    }
+
+    boolean isJavaIdentifierPart(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$nonzeroJavaPart) != 0);
+    }
+
+    boolean isUnicodeIdentifierStart(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskIdentifierInfo) == $$valueUnicodeStart);
+    }
+
+    boolean isUnicodeIdentifierPart(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskUnicodePart) != 0);
+    }
+
+    boolean isIdentifierIgnorable(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskIdentifierInfo) == $$valueIgnorable);
+    }
+
+    int toLowerCase(int ch) {
+        int mapChar = ch;
+        int val = getProperties(ch);
+
+        if ((val & $$maskLowerCase) != 0) {
+            int offset = val << $$shiftCaseOffsetSign >> ($$shiftCaseOffsetSign+$$shiftCaseOffset);
+            mapChar = ch + offset;
+        }
+        return  mapChar;
+    }
+
+    int toUpperCase(int ch) {
+        int mapChar = ch;
+        int val = getProperties(ch);
+
+        if ((val & $$maskUpperCase) != 0) {
+            int offset = val  << $$shiftCaseOffsetSign >> ($$shiftCaseOffsetSign+$$shiftCaseOffset);
+            mapChar =  ch - offset;
+        }
+        return  mapChar;
+    }
+
+    int toTitleCase(int ch) {
+        int mapChar = ch;
+        int val = getProperties(ch);
+
+        if ((val & $$maskTitleCase) != 0) {
+            // There is a titlecase equivalent.  Perform further checks:
+            if ((val & $$maskUpperCase) == 0) {
+                // The character does not have an uppercase equivalent, so it must
+                // already be uppercase; so add 1 to get the titlecase form.
+                mapChar = ch + 1;
+            }
+            else if ((val & $$maskLowerCase) == 0) {
+                // The character does not have a lowercase equivalent, so it must
+                // already be lowercase; so subtract 1 to get the titlecase form.
+                mapChar = ch - 1;
+            }
+            // else {
+            // The character has both an uppercase equivalent and a lowercase
+            // equivalent, so it must itself be a titlecase form; return it.
+            // return ch;
+            //}
+        }
+        else if ((val & $$maskUpperCase) != 0) {
+            // This character has no titlecase equivalent but it does have an
+            // uppercase equivalent, so use that (subtract the signed case offset).
+            mapChar = toUpperCase(ch);
+        }
+        return  mapChar;
+    }
+
+    int digit(int ch, int radix) {
+        int value = -1;
+        if (radix >= Character.MIN_RADIX && radix <= Character.MAX_RADIX) {
+            int val = getProperties(ch);
+            int kind = val & $$maskType;
+            if (kind == Character.DECIMAL_DIGIT_NUMBER) {
+                value = ch + ((val & $$maskDigitOffset) >> $$shiftDigitOffset) & $$maskDigit;
+            }
+            else if ((val & $$maskNumericType) == $$valueJavaSupradecimal) {
+                // Java supradecimal digit
+                value = (ch + ((val & $$maskDigitOffset) >> $$shiftDigitOffset) & $$maskDigit) + 10;
+            }
+        }
+        return (value < radix) ? value : -1;
+    }
+
+    int getNumericValue(int ch) {
+        int val = getProperties(ch);
+        int retval = -1;
+
+        switch (val & $$maskNumericType) {
+        default: // cannot occur
+        case ($$valueNotNumeric):         // not numeric
+            retval = -1;
+            break;
+        case ($$valueDigit):              // simple numeric
+            retval = ch + ((val & $$maskDigitOffset) >> $$shiftDigitOffset) & $$maskDigit;
+            break;
+        case ($$valueStrangeNumeric)      :       // "strange" numeric
+            switch(ch) {
+            case 0x10113: retval = 40; break;      // AEGEAN NUMBER FORTY
+            case 0x10114: retval = 50; break;      // AEGEAN NUMBER FIFTY
+            case 0x10115: retval = 60; break;      // AEGEAN NUMBER SIXTY
+            case 0x10116: retval = 70; break;      // AEGEAN NUMBER SEVENTY
+            case 0x10117: retval = 80; break;      // AEGEAN NUMBER EIGHTY
+            case 0x10118: retval = 90; break;      // AEGEAN NUMBER NINETY
+            case 0x10119: retval = 100; break;     // AEGEAN NUMBER ONE HUNDRED
+            case 0x1011A: retval = 200; break;     // AEGEAN NUMBER TWO HUNDRED
+            case 0x1011B: retval = 300; break;     // AEGEAN NUMBER THREE HUNDRED
+            case 0x1011C: retval = 400; break;     // AEGEAN NUMBER FOUR HUNDRED
+            case 0x1011D: retval = 500; break;     // AEGEAN NUMBER FIVE HUNDRED
+            case 0x1011E: retval = 600; break;     // AEGEAN NUMBER SIX HUNDRED
+            case 0x1011F: retval = 700; break;     // AEGEAN NUMBER SEVEN HUNDRED
+            case 0x10120: retval = 800; break;     // AEGEAN NUMBER EIGHT HUNDRED
+            case 0x10121: retval = 900; break;     // AEGEAN NUMBER NINE HUNDRED
+            case 0x10122: retval = 1000; break;    // AEGEAN NUMBER ONE THOUSAND
+            case 0x10123: retval = 2000; break;    // AEGEAN NUMBER TWO THOUSAND
+            case 0x10124: retval = 3000; break;    // AEGEAN NUMBER THREE THOUSAND
+            case 0x10125: retval = 4000; break;    // AEGEAN NUMBER FOUR THOUSAND
+            case 0x10126: retval = 5000; break;    // AEGEAN NUMBER FIVE THOUSAND
+            case 0x10127: retval = 6000; break;    // AEGEAN NUMBER SIX THOUSAND
+            case 0x10128: retval = 7000; break;    // AEGEAN NUMBER SEVEN THOUSAND
+            case 0x10129: retval = 8000; break;    // AEGEAN NUMBER EIGHT THOUSAND
+            case 0x1012A: retval = 9000; break;    // AEGEAN NUMBER NINE THOUSAND
+            case 0x1012B: retval = 10000; break;   // AEGEAN NUMBER TEN THOUSAND
+            case 0x1012C: retval = 20000; break;   // AEGEAN NUMBER TWENTY THOUSAND
+            case 0x1012D: retval = 30000; break;   // AEGEAN NUMBER THIRTY THOUSAND
+            case 0x1012E: retval = 40000; break;   // AEGEAN NUMBER FORTY THOUSAND
+            case 0x1012F: retval = 50000; break;   // AEGEAN NUMBER FIFTY THOUSAND
+            case 0x10130: retval = 60000; break;   // AEGEAN NUMBER SIXTY THOUSAND
+            case 0x10131: retval = 70000; break;   // AEGEAN NUMBER SEVENTY THOUSAND
+            case 0x10132: retval = 80000; break;   // AEGEAN NUMBER EIGHTY THOUSAND
+            case 0x10133: retval = 90000; break;   // AEGEAN NUMBER NINETY THOUSAND
+            case 0x10323: retval = 50; break;      // OLD ITALIC NUMERAL FIFTY
+            default: retval = -2; break;
+            }
+            
+            break;
+        case ($$valueJavaSupradecimal):           // Java supradecimal
+            retval = (ch + ((val & $$maskDigitOffset) >> $$shiftDigitOffset) & $$maskDigit) + 10;
+            break;
+        }
+        return retval;
+    }
+
+    boolean isWhitespace(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskIdentifierInfo) == $$valueJavaWhitespace);
+    }
+
+    byte getDirectionality(int ch) {
+        int val = getProperties(ch);
+        byte directionality = (byte)((val & $$maskBidi) >> $$shiftBidi);
+        if (directionality == 0xF ) {
+            directionality = Character.DIRECTIONALITY_UNDEFINED;
+        }
+        return directionality;
+    }
+
+    boolean isMirrored(int ch) {
+        int props = getProperties(ch);
+        return ((props & $$maskMirrored) != 0);
+    }
+
+    static final CharacterData instance = new CharacterData01();
+    private CharacterData01() {};
+
+    $$Tables
+
+    static {
+        $$Initializers
+    }        
+}