|
|
@@ -0,0 +1,253 @@
|
|
|
+/*
|
|
|
+ * Copyright (c) 1999, 2000, Oracle and/or its affiliates. All rights reserved.
|
|
|
+ * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
|
+ */
|
|
|
+package net.ranides.assira.text;
|
|
|
+
|
|
|
+/**
|
|
|
+ * Utility class that implements the standard C ctype functionality.
|
|
|
+ *
|
|
|
+ * @author Hong Zhang
|
|
|
+ */
|
|
|
+public class ASCII {
|
|
|
+
|
|
|
+ // COPY FROM JDK: java.util.regex.ASCII
|
|
|
+
|
|
|
+ private static final int UPPER = 0x00000100;
|
|
|
+
|
|
|
+ private static final int LOWER = 0x00000200;
|
|
|
+
|
|
|
+ private static final int DIGIT = 0x00000400;
|
|
|
+
|
|
|
+ private static final int SPACE = 0x00000800;
|
|
|
+
|
|
|
+ private static final int PUNCT = 0x00001000;
|
|
|
+
|
|
|
+ private static final int CNTRL = 0x00002000;
|
|
|
+
|
|
|
+ private static final int BLANK = 0x00004000;
|
|
|
+
|
|
|
+ private static final int HEX = 0x00008000;
|
|
|
+
|
|
|
+ private static final int UNDER = 0x00010000;
|
|
|
+
|
|
|
+ private static final int ASCII = 0x0000FF00;
|
|
|
+
|
|
|
+ private static final int ALPHA = (UPPER|LOWER);
|
|
|
+
|
|
|
+ private static final int ALNUM = (UPPER|LOWER|DIGIT);
|
|
|
+
|
|
|
+ private static final int GRAPH = (PUNCT|UPPER|LOWER|DIGIT);
|
|
|
+
|
|
|
+ private static final int WORD = (UPPER|LOWER|UNDER|DIGIT);
|
|
|
+
|
|
|
+ private static final int XDIGIT = (HEX);
|
|
|
+
|
|
|
+ private static final int[] ctype = new int[] {
|
|
|
+ CNTRL, /* 00 (NUL) */
|
|
|
+ CNTRL, /* 01 (SOH) */
|
|
|
+ CNTRL, /* 02 (STX) */
|
|
|
+ CNTRL, /* 03 (ETX) */
|
|
|
+ CNTRL, /* 04 (EOT) */
|
|
|
+ CNTRL, /* 05 (ENQ) */
|
|
|
+ CNTRL, /* 06 (ACK) */
|
|
|
+ CNTRL, /* 07 (BEL) */
|
|
|
+ CNTRL, /* 08 (BS) */
|
|
|
+ SPACE+CNTRL+BLANK, /* 09 (HT) */
|
|
|
+ SPACE+CNTRL, /* 0A (LF) */
|
|
|
+ SPACE+CNTRL, /* 0B (VT) */
|
|
|
+ SPACE+CNTRL, /* 0C (FF) */
|
|
|
+ SPACE+CNTRL, /* 0D (CR) */
|
|
|
+ CNTRL, /* 0E (SI) */
|
|
|
+ CNTRL, /* 0F (SO) */
|
|
|
+ CNTRL, /* 10 (DLE) */
|
|
|
+ CNTRL, /* 11 (DC1) */
|
|
|
+ CNTRL, /* 12 (DC2) */
|
|
|
+ CNTRL, /* 13 (DC3) */
|
|
|
+ CNTRL, /* 14 (DC4) */
|
|
|
+ CNTRL, /* 15 (NAK) */
|
|
|
+ CNTRL, /* 16 (SYN) */
|
|
|
+ CNTRL, /* 17 (ETB) */
|
|
|
+ CNTRL, /* 18 (CAN) */
|
|
|
+ CNTRL, /* 19 (EM) */
|
|
|
+ CNTRL, /* 1A (SUB) */
|
|
|
+ CNTRL, /* 1B (ESC) */
|
|
|
+ CNTRL, /* 1C (FS) */
|
|
|
+ CNTRL, /* 1D (GS) */
|
|
|
+ CNTRL, /* 1E (RS) */
|
|
|
+ CNTRL, /* 1F (US) */
|
|
|
+ SPACE+BLANK, /* 20 SPACE */
|
|
|
+ PUNCT, /* 21 ! */
|
|
|
+ PUNCT, /* 22 " */
|
|
|
+ PUNCT, /* 23 # */
|
|
|
+ PUNCT, /* 24 $ */
|
|
|
+ PUNCT, /* 25 % */
|
|
|
+ PUNCT, /* 26 & */
|
|
|
+ PUNCT, /* 27 ' */
|
|
|
+ PUNCT, /* 28 ( */
|
|
|
+ PUNCT, /* 29 ) */
|
|
|
+ PUNCT, /* 2A * */
|
|
|
+ PUNCT, /* 2B + */
|
|
|
+ PUNCT, /* 2C , */
|
|
|
+ PUNCT, /* 2D - */
|
|
|
+ PUNCT, /* 2E . */
|
|
|
+ PUNCT, /* 2F / */
|
|
|
+ DIGIT+HEX+0, /* 30 0 */
|
|
|
+ DIGIT+HEX+1, /* 31 1 */
|
|
|
+ DIGIT+HEX+2, /* 32 2 */
|
|
|
+ DIGIT+HEX+3, /* 33 3 */
|
|
|
+ DIGIT+HEX+4, /* 34 4 */
|
|
|
+ DIGIT+HEX+5, /* 35 5 */
|
|
|
+ DIGIT+HEX+6, /* 36 6 */
|
|
|
+ DIGIT+HEX+7, /* 37 7 */
|
|
|
+ DIGIT+HEX+8, /* 38 8 */
|
|
|
+ DIGIT+HEX+9, /* 39 9 */
|
|
|
+ PUNCT, /* 3A : */
|
|
|
+ PUNCT, /* 3B ; */
|
|
|
+ PUNCT, /* 3C < */
|
|
|
+ PUNCT, /* 3D = */
|
|
|
+ PUNCT, /* 3E > */
|
|
|
+ PUNCT, /* 3F ? */
|
|
|
+ PUNCT, /* 40 @ */
|
|
|
+ UPPER+HEX+10, /* 41 A */
|
|
|
+ UPPER+HEX+11, /* 42 B */
|
|
|
+ UPPER+HEX+12, /* 43 C */
|
|
|
+ UPPER+HEX+13, /* 44 D */
|
|
|
+ UPPER+HEX+14, /* 45 E */
|
|
|
+ UPPER+HEX+15, /* 46 F */
|
|
|
+ UPPER+16, /* 47 G */
|
|
|
+ UPPER+17, /* 48 H */
|
|
|
+ UPPER+18, /* 49 I */
|
|
|
+ UPPER+19, /* 4A J */
|
|
|
+ UPPER+20, /* 4B K */
|
|
|
+ UPPER+21, /* 4C L */
|
|
|
+ UPPER+22, /* 4D M */
|
|
|
+ UPPER+23, /* 4E N */
|
|
|
+ UPPER+24, /* 4F O */
|
|
|
+ UPPER+25, /* 50 P */
|
|
|
+ UPPER+26, /* 51 Q */
|
|
|
+ UPPER+27, /* 52 R */
|
|
|
+ UPPER+28, /* 53 S */
|
|
|
+ UPPER+29, /* 54 T */
|
|
|
+ UPPER+30, /* 55 U */
|
|
|
+ UPPER+31, /* 56 V */
|
|
|
+ UPPER+32, /* 57 W */
|
|
|
+ UPPER+33, /* 58 X */
|
|
|
+ UPPER+34, /* 59 Y */
|
|
|
+ UPPER+35, /* 5A Z */
|
|
|
+ PUNCT, /* 5B [ */
|
|
|
+ PUNCT, /* 5C \ */
|
|
|
+ PUNCT, /* 5D ] */
|
|
|
+ PUNCT, /* 5E ^ */
|
|
|
+ PUNCT|UNDER, /* 5F _ */
|
|
|
+ PUNCT, /* 60 ` */
|
|
|
+ LOWER+HEX+10, /* 61 a */
|
|
|
+ LOWER+HEX+11, /* 62 b */
|
|
|
+ LOWER+HEX+12, /* 63 c */
|
|
|
+ LOWER+HEX+13, /* 64 d */
|
|
|
+ LOWER+HEX+14, /* 65 e */
|
|
|
+ LOWER+HEX+15, /* 66 f */
|
|
|
+ LOWER+16, /* 67 g */
|
|
|
+ LOWER+17, /* 68 h */
|
|
|
+ LOWER+18, /* 69 i */
|
|
|
+ LOWER+19, /* 6A j */
|
|
|
+ LOWER+20, /* 6B k */
|
|
|
+ LOWER+21, /* 6C l */
|
|
|
+ LOWER+22, /* 6D m */
|
|
|
+ LOWER+23, /* 6E n */
|
|
|
+ LOWER+24, /* 6F o */
|
|
|
+ LOWER+25, /* 70 p */
|
|
|
+ LOWER+26, /* 71 q */
|
|
|
+ LOWER+27, /* 72 r */
|
|
|
+ LOWER+28, /* 73 s */
|
|
|
+ LOWER+29, /* 74 t */
|
|
|
+ LOWER+30, /* 75 u */
|
|
|
+ LOWER+31, /* 76 v */
|
|
|
+ LOWER+32, /* 77 w */
|
|
|
+ LOWER+33, /* 78 x */
|
|
|
+ LOWER+34, /* 79 y */
|
|
|
+ LOWER+35, /* 7A z */
|
|
|
+ PUNCT, /* 7B { */
|
|
|
+ PUNCT, /* 7C | */
|
|
|
+ PUNCT, /* 7D } */
|
|
|
+ PUNCT, /* 7E ~ */
|
|
|
+ CNTRL, /* 7F (DEL) */
|
|
|
+ };
|
|
|
+
|
|
|
+ private static int getType(int ch) {
|
|
|
+ return ((ch & 0xFFFFFF80) == 0 ? ctype[ch] : 0);
|
|
|
+ }
|
|
|
+
|
|
|
+ private static boolean isType(int ch, int type) {
|
|
|
+ return (getType(ch) & type) != 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isAscii(int ch) {
|
|
|
+ return ((ch & 0xFFFFFF80) == 0);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isAlpha(int ch) {
|
|
|
+ return isType(ch, ALPHA);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isDigit(int ch) {
|
|
|
+ return ((ch-'0')|('9'-ch)) >= 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isAlnum(int ch) {
|
|
|
+ return isType(ch, ALNUM);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isGraph(int ch) {
|
|
|
+ return isType(ch, GRAPH);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isPrint(int ch) {
|
|
|
+ return ((ch-0x20)|(0x7E-ch)) >= 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isPunct(int ch) {
|
|
|
+ return isType(ch, PUNCT);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isSpace(int ch) {
|
|
|
+ return isType(ch, SPACE);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isHexDigit(int ch) {
|
|
|
+ return isType(ch, HEX);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isOctDigit(int ch) {
|
|
|
+ return ((ch-'0')|('7'-ch)) >= 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isCntrl(int ch) {
|
|
|
+ return isType(ch, CNTRL);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isLower(int ch) {
|
|
|
+ return ((ch-'a')|('z'-ch)) >= 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isUpper(int ch) {
|
|
|
+ return ((ch-'A')|('Z'-ch)) >= 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static boolean isWord(int ch) {
|
|
|
+ return isType(ch, WORD);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static int toDigit(int ch) {
|
|
|
+ return (ctype[ch & 0x7F] & 0x3F);
|
|
|
+ }
|
|
|
+
|
|
|
+ public static int toLower(int ch) {
|
|
|
+ return isUpper(ch) ? (ch + 0x20) : ch;
|
|
|
+ }
|
|
|
+
|
|
|
+ public static int toUpper(int ch) {
|
|
|
+ return isLower(ch) ? (ch - 0x20) : ch;
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
