248 lines
8.9 KiB
Java
248 lines
8.9 KiB
Java
/*
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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final class POSIX_ASCII {
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static final int UPPER = 0x00000100;
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static final int LOWER = 0x00000200;
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static final int DIGIT = 0x00000400;
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static final int SPACE = 0x00000800;
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static final int PUNCT = 0x00001000;
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static final int CNTRL = 0x00002000;
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static final int BLANK = 0x00004000;
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static final int HEX = 0x00008000;
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static final int UNDER = 0x00010000;
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static final int ASCII = 0x0000FF00;
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static final int ALPHA = (UPPER|LOWER);
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static final int ALNUM = (UPPER|LOWER|DIGIT);
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static final int GRAPH = (PUNCT|UPPER|LOWER|DIGIT);
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static final int WORD = (UPPER|LOWER|UNDER|DIGIT);
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static final int XDIGIT = (HEX);
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private static final int[] ctype = new int[] {
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CNTRL, /* 00 (NUL) */
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CNTRL, /* 01 (SOH) */
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CNTRL, /* 02 (STX) */
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CNTRL, /* 03 (ETX) */
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CNTRL, /* 04 (EOT) */
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CNTRL, /* 05 (ENQ) */
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CNTRL, /* 06 (ACK) */
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CNTRL, /* 07 (BEL) */
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CNTRL, /* 08 (BS) */
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SPACE+CNTRL+BLANK, /* 09 (HT) */
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SPACE+CNTRL, /* 0A (LF) */
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SPACE+CNTRL, /* 0B (VT) */
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SPACE+CNTRL, /* 0C (FF) */
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SPACE+CNTRL, /* 0D (CR) */
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CNTRL, /* 0E (SI) */
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CNTRL, /* 0F (SO) */
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CNTRL, /* 10 (DLE) */
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CNTRL, /* 11 (DC1) */
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CNTRL, /* 12 (DC2) */
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CNTRL, /* 13 (DC3) */
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CNTRL, /* 14 (DC4) */
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CNTRL, /* 15 (NAK) */
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CNTRL, /* 16 (SYN) */
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CNTRL, /* 17 (ETB) */
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CNTRL, /* 18 (CAN) */
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CNTRL, /* 19 (EM) */
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CNTRL, /* 1A (SUB) */
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CNTRL, /* 1B (ESC) */
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CNTRL, /* 1C (FS) */
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CNTRL, /* 1D (GS) */
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CNTRL, /* 1E (RS) */
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CNTRL, /* 1F (US) */
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SPACE+BLANK, /* 20 SPACE */
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PUNCT, /* 21 ! */
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PUNCT, /* 22 " */
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PUNCT, /* 23 # */
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PUNCT, /* 24 $ */
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PUNCT, /* 25 % */
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PUNCT, /* 26 & */
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PUNCT, /* 27 ' */
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PUNCT, /* 28 ( */
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PUNCT, /* 29 ) */
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PUNCT, /* 2A * */
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PUNCT, /* 2B + */
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PUNCT, /* 2C , */
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PUNCT, /* 2D - */
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PUNCT, /* 2E . */
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PUNCT, /* 2F / */
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DIGIT+HEX+0, /* 30 0 */
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DIGIT+HEX+1, /* 31 1 */
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DIGIT+HEX+2, /* 32 2 */
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DIGIT+HEX+3, /* 33 3 */
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DIGIT+HEX+4, /* 34 4 */
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DIGIT+HEX+5, /* 35 5 */
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DIGIT+HEX+6, /* 36 6 */
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DIGIT+HEX+7, /* 37 7 */
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DIGIT+HEX+8, /* 38 8 */
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DIGIT+HEX+9, /* 39 9 */
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PUNCT, /* 3A : */
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PUNCT, /* 3B ; */
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PUNCT, /* 3C < */
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PUNCT, /* 3D = */
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PUNCT, /* 3E > */
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PUNCT, /* 3F ? */
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PUNCT, /* 40 @ */
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UPPER+HEX+10, /* 41 A */
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UPPER+HEX+11, /* 42 B */
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UPPER+HEX+12, /* 43 C */
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UPPER+HEX+13, /* 44 D */
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UPPER+HEX+14, /* 45 E */
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UPPER+HEX+15, /* 46 F */
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UPPER+16, /* 47 G */
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UPPER+17, /* 48 H */
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UPPER+18, /* 49 I */
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UPPER+19, /* 4A J */
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UPPER+20, /* 4B K */
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UPPER+21, /* 4C L */
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UPPER+22, /* 4D M */
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UPPER+23, /* 4E N */
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UPPER+24, /* 4F O */
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UPPER+25, /* 50 P */
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UPPER+26, /* 51 Q */
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UPPER+27, /* 52 R */
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UPPER+28, /* 53 S */
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UPPER+29, /* 54 T */
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UPPER+30, /* 55 U */
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UPPER+31, /* 56 V */
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UPPER+32, /* 57 W */
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UPPER+33, /* 58 X */
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UPPER+34, /* 59 Y */
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UPPER+35, /* 5A Z */
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PUNCT, /* 5B [ */
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PUNCT, /* 5C \ */
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PUNCT, /* 5D ] */
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PUNCT, /* 5E ^ */
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PUNCT|UNDER, /* 5F _ */
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PUNCT, /* 60 ` */
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LOWER+HEX+10, /* 61 a */
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LOWER+HEX+11, /* 62 b */
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LOWER+HEX+12, /* 63 c */
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LOWER+HEX+13, /* 64 d */
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LOWER+HEX+14, /* 65 e */
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LOWER+HEX+15, /* 66 f */
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LOWER+16, /* 67 g */
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LOWER+17, /* 68 h */
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LOWER+18, /* 69 i */
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LOWER+19, /* 6A j */
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LOWER+20, /* 6B k */
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LOWER+21, /* 6C l */
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LOWER+22, /* 6D m */
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LOWER+23, /* 6E n */
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LOWER+24, /* 6F o */
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LOWER+25, /* 70 p */
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LOWER+26, /* 71 q */
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LOWER+27, /* 72 r */
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LOWER+28, /* 73 s */
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LOWER+29, /* 74 t */
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LOWER+30, /* 75 u */
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LOWER+31, /* 76 v */
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LOWER+32, /* 77 w */
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LOWER+33, /* 78 x */
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LOWER+34, /* 79 y */
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LOWER+35, /* 7A z */
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PUNCT, /* 7B { */
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PUNCT, /* 7C | */
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PUNCT, /* 7D } */
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PUNCT, /* 7E ~ */
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CNTRL, /* 7F (DEL) */
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};
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static int getType(int ch) {
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return ((ch & 0xFFFFFF80) == 0 ? ctype[ch] : 0);
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}
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static boolean isType(int ch, int type) {
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return (getType(ch) & type) != 0;
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}
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static boolean isAscii(int ch) {
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return ((ch & 0xFFFFFF80) == 0);
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}
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static boolean isAlpha(int ch) {
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return isType(ch, ALPHA);
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}
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static boolean isDigit(int ch) {
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return ((ch-'0')|('9'-ch)) >= 0;
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}
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static boolean isAlnum(int ch) {
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return isType(ch, ALNUM);
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}
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static boolean isGraph(int ch) {
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return isType(ch, GRAPH);
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}
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static boolean isPrint(int ch) {
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return ((ch-0x20)|(0x7E-ch)) >= 0;
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}
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static boolean isPunct(int ch) {
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return isType(ch, PUNCT);
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}
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static boolean isSpace(int ch) {
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return isType(ch, SPACE);
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}
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static boolean isHexDigit(int ch) {
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return isType(ch, HEX);
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}
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static boolean isCntrl(int ch) {
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return isType(ch, CNTRL);
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}
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static boolean isLower(int ch) {
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return ((ch-'a')|('z'-ch)) >= 0;
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}
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static boolean isUpper(int ch) {
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return ((ch-'A')|('Z'-ch)) >= 0;
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}
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static boolean isWord(int ch) {
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return isType(ch, WORD);
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}
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}
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