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1 /* |
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 |
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25 final class POSIX_ASCII { |
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26 |
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27 static final int UPPER = 0x00000100; |
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28 |
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29 static final int LOWER = 0x00000200; |
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30 |
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31 static final int DIGIT = 0x00000400; |
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32 |
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33 static final int SPACE = 0x00000800; |
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34 |
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35 static final int PUNCT = 0x00001000; |
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36 |
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37 static final int CNTRL = 0x00002000; |
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38 |
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39 static final int BLANK = 0x00004000; |
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40 |
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41 static final int HEX = 0x00008000; |
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42 |
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43 static final int UNDER = 0x00010000; |
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44 |
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45 static final int ASCII = 0x0000FF00; |
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46 |
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47 static final int ALPHA = (UPPER|LOWER); |
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48 |
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49 static final int ALNUM = (UPPER|LOWER|DIGIT); |
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50 |
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51 static final int GRAPH = (PUNCT|UPPER|LOWER|DIGIT); |
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52 |
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53 static final int WORD = (UPPER|LOWER|UNDER|DIGIT); |
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54 |
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55 static final int XDIGIT = (HEX); |
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56 |
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57 private static final int[] ctype = new int[] { |
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58 CNTRL, /* 00 (NUL) */ |
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59 CNTRL, /* 01 (SOH) */ |
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60 CNTRL, /* 02 (STX) */ |
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61 CNTRL, /* 03 (ETX) */ |
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62 CNTRL, /* 04 (EOT) */ |
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63 CNTRL, /* 05 (ENQ) */ |
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64 CNTRL, /* 06 (ACK) */ |
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65 CNTRL, /* 07 (BEL) */ |
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66 CNTRL, /* 08 (BS) */ |
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67 SPACE+CNTRL+BLANK, /* 09 (HT) */ |
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68 SPACE+CNTRL, /* 0A (LF) */ |
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69 SPACE+CNTRL, /* 0B (VT) */ |
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70 SPACE+CNTRL, /* 0C (FF) */ |
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71 SPACE+CNTRL, /* 0D (CR) */ |
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72 CNTRL, /* 0E (SI) */ |
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73 CNTRL, /* 0F (SO) */ |
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74 CNTRL, /* 10 (DLE) */ |
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75 CNTRL, /* 11 (DC1) */ |
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76 CNTRL, /* 12 (DC2) */ |
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77 CNTRL, /* 13 (DC3) */ |
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78 CNTRL, /* 14 (DC4) */ |
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79 CNTRL, /* 15 (NAK) */ |
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80 CNTRL, /* 16 (SYN) */ |
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81 CNTRL, /* 17 (ETB) */ |
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82 CNTRL, /* 18 (CAN) */ |
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83 CNTRL, /* 19 (EM) */ |
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84 CNTRL, /* 1A (SUB) */ |
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85 CNTRL, /* 1B (ESC) */ |
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86 CNTRL, /* 1C (FS) */ |
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87 CNTRL, /* 1D (GS) */ |
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88 CNTRL, /* 1E (RS) */ |
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89 CNTRL, /* 1F (US) */ |
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90 SPACE+BLANK, /* 20 SPACE */ |
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91 PUNCT, /* 21 ! */ |
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92 PUNCT, /* 22 " */ |
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93 PUNCT, /* 23 # */ |
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94 PUNCT, /* 24 $ */ |
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95 PUNCT, /* 25 % */ |
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96 PUNCT, /* 26 & */ |
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97 PUNCT, /* 27 ' */ |
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98 PUNCT, /* 28 ( */ |
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99 PUNCT, /* 29 ) */ |
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100 PUNCT, /* 2A * */ |
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101 PUNCT, /* 2B + */ |
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102 PUNCT, /* 2C , */ |
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103 PUNCT, /* 2D - */ |
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104 PUNCT, /* 2E . */ |
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105 PUNCT, /* 2F / */ |
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106 DIGIT+HEX+0, /* 30 0 */ |
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107 DIGIT+HEX+1, /* 31 1 */ |
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108 DIGIT+HEX+2, /* 32 2 */ |
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109 DIGIT+HEX+3, /* 33 3 */ |
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110 DIGIT+HEX+4, /* 34 4 */ |
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111 DIGIT+HEX+5, /* 35 5 */ |
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112 DIGIT+HEX+6, /* 36 6 */ |
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113 DIGIT+HEX+7, /* 37 7 */ |
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114 DIGIT+HEX+8, /* 38 8 */ |
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115 DIGIT+HEX+9, /* 39 9 */ |
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116 PUNCT, /* 3A : */ |
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117 PUNCT, /* 3B ; */ |
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118 PUNCT, /* 3C < */ |
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119 PUNCT, /* 3D = */ |
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120 PUNCT, /* 3E > */ |
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121 PUNCT, /* 3F ? */ |
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122 PUNCT, /* 40 @ */ |
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123 UPPER+HEX+10, /* 41 A */ |
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124 UPPER+HEX+11, /* 42 B */ |
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125 UPPER+HEX+12, /* 43 C */ |
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126 UPPER+HEX+13, /* 44 D */ |
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127 UPPER+HEX+14, /* 45 E */ |
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128 UPPER+HEX+15, /* 46 F */ |
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129 UPPER+16, /* 47 G */ |
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130 UPPER+17, /* 48 H */ |
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131 UPPER+18, /* 49 I */ |
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132 UPPER+19, /* 4A J */ |
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133 UPPER+20, /* 4B K */ |
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134 UPPER+21, /* 4C L */ |
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135 UPPER+22, /* 4D M */ |
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136 UPPER+23, /* 4E N */ |
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137 UPPER+24, /* 4F O */ |
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138 UPPER+25, /* 50 P */ |
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139 UPPER+26, /* 51 Q */ |
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140 UPPER+27, /* 52 R */ |
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141 UPPER+28, /* 53 S */ |
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142 UPPER+29, /* 54 T */ |
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143 UPPER+30, /* 55 U */ |
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144 UPPER+31, /* 56 V */ |
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145 UPPER+32, /* 57 W */ |
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146 UPPER+33, /* 58 X */ |
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147 UPPER+34, /* 59 Y */ |
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148 UPPER+35, /* 5A Z */ |
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149 PUNCT, /* 5B [ */ |
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150 PUNCT, /* 5C \ */ |
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151 PUNCT, /* 5D ] */ |
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152 PUNCT, /* 5E ^ */ |
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153 PUNCT|UNDER, /* 5F _ */ |
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154 PUNCT, /* 60 ` */ |
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155 LOWER+HEX+10, /* 61 a */ |
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156 LOWER+HEX+11, /* 62 b */ |
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157 LOWER+HEX+12, /* 63 c */ |
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158 LOWER+HEX+13, /* 64 d */ |
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159 LOWER+HEX+14, /* 65 e */ |
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160 LOWER+HEX+15, /* 66 f */ |
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161 LOWER+16, /* 67 g */ |
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162 LOWER+17, /* 68 h */ |
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163 LOWER+18, /* 69 i */ |
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164 LOWER+19, /* 6A j */ |
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165 LOWER+20, /* 6B k */ |
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166 LOWER+21, /* 6C l */ |
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167 LOWER+22, /* 6D m */ |
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168 LOWER+23, /* 6E n */ |
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169 LOWER+24, /* 6F o */ |
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170 LOWER+25, /* 70 p */ |
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171 LOWER+26, /* 71 q */ |
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172 LOWER+27, /* 72 r */ |
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173 LOWER+28, /* 73 s */ |
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174 LOWER+29, /* 74 t */ |
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175 LOWER+30, /* 75 u */ |
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176 LOWER+31, /* 76 v */ |
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177 LOWER+32, /* 77 w */ |
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178 LOWER+33, /* 78 x */ |
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179 LOWER+34, /* 79 y */ |
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180 LOWER+35, /* 7A z */ |
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181 PUNCT, /* 7B { */ |
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182 PUNCT, /* 7C | */ |
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183 PUNCT, /* 7D } */ |
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184 PUNCT, /* 7E ~ */ |
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185 CNTRL, /* 7F (DEL) */ |
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186 }; |
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187 |
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188 static int getType(int ch) { |
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189 return ((ch & 0xFFFFFF80) == 0 ? ctype[ch] : 0); |
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190 } |
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191 |
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192 static boolean isType(int ch, int type) { |
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193 return (getType(ch) & type) != 0; |
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194 } |
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195 |
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196 static boolean isAscii(int ch) { |
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197 return ((ch & 0xFFFFFF80) == 0); |
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198 } |
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199 |
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200 static boolean isAlpha(int ch) { |
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201 return isType(ch, ALPHA); |
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202 } |
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203 |
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204 static boolean isDigit(int ch) { |
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205 return ((ch-'0')|('9'-ch)) >= 0; |
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206 } |
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207 |
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208 static boolean isAlnum(int ch) { |
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209 return isType(ch, ALNUM); |
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210 } |
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211 |
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212 static boolean isGraph(int ch) { |
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213 return isType(ch, GRAPH); |
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214 } |
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215 |
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216 static boolean isPrint(int ch) { |
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217 return ((ch-0x20)|(0x7E-ch)) >= 0; |
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218 } |
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219 |
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220 static boolean isPunct(int ch) { |
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221 return isType(ch, PUNCT); |
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222 } |
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223 |
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224 static boolean isSpace(int ch) { |
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225 return isType(ch, SPACE); |
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226 } |
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227 |
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228 static boolean isHexDigit(int ch) { |
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229 return isType(ch, HEX); |
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230 } |
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231 |
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232 static boolean isCntrl(int ch) { |
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233 return isType(ch, CNTRL); |
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234 } |
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235 |
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236 static boolean isLower(int ch) { |
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237 return ((ch-'a')|('z'-ch)) >= 0; |
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238 } |
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239 |
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240 static boolean isUpper(int ch) { |
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241 return ((ch-'A')|('Z'-ch)) >= 0; |
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242 } |
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243 |
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244 static boolean isWord(int ch) { |
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245 return isType(ch, WORD); |
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246 } |
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247 } |