1 /* Copyright 2002, 2003 Elliotte Rusty Harold 2 3 This library is free software; you can redistribute it and/or modify 4 it under the terms of version 2.1 of the GNU Lesser General Public 5 License as published by the Free Software Foundation. 6 7 This library is distributed in the hope that it will be useful, 8 but WITHOUT ANY WARRANTY; without even the implied warranty of 9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 GNU Lesser General Public License for more details. 11 12 You should have received a copy of the GNU Lesser General Public 13 License along with this library; if not, write to the 14 Free Software Foundation, Inc., 59 Temple Place, Suite 330, 15 Boston, MA 02111-1307 USA 16 17 You can contact Elliotte Rusty Harold by sending e-mail to 18 elharo@ibiblio.org. Please include the word "XOM" in the 19 subject line. The XOM home page is located at http://www.xom.nu/ 20 */ 21 22 package nu.xom; 23 24 import java.io.Writer; 25 26 /** 27 * <p> 28 * ISO 8859-7, ASCII plus Greek 29 * </p> 30 * 31 * @author Elliotte Rusty Harold 32 * @version 1.1b2 33 * 34 */ 35 class ISOGreekWriter extends TextWriter { 36 ISOGreekWriter(Writer out, String encoding)37 ISOGreekWriter(Writer out, String encoding) { 38 super(out, encoding); 39 } 40 41 /** 42 * @see nu.xom.TextWriter#needsEscaping(char) 43 */ needsEscaping(char c)44 boolean needsEscaping(char c) { 45 if (c < 127) return false; 46 switch (c) { // Greek 47 case 0x0384: return false; // GREEK TONOS 48 case 0x0385: return false; // GREEK DIALYTIKA TONOS 49 case 0x0386: return false; // GREEK CAPITAL LETTER ALPHA WITH TONOS 50 case 0x0387: return true; // place holder to enable table lookup 51 case 0x0388: return false; // GREEK CAPITAL LETTER EPSILON WITH TONOS 52 case 0x0389: return false; // GREEK CAPITAL LETTER ETA WITH TONOS 53 case 0x038A: return false; // GREEK CAPITAL LETTER IOTA WITH TONOS 54 case 0x038B: return true; // place holder to enable table lookup 55 case 0x038C: return false; // GREEK CAPITAL LETTER OMICRON WITH TONOS 56 case 0x038D: return true; // place holder to enable table lookup 57 case 0x038E: return false; // GREEK CAPITAL LETTER UPSILON WITH TONOS 58 case 0x038F: return false; // GREEK CAPITAL LETTER OMEGA WITH TONOS 59 case 0x0390: return false; // GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS 60 case 0x0391: return false; // GREEK CAPITAL LETTER ALPHA 61 case 0x0392: return false; // GREEK CAPITAL LETTER BETA 62 case 0x0393: return false; // GREEK CAPITAL LETTER GAMMA 63 case 0x0394: return false; // GREEK CAPITAL LETTER DELTA 64 case 0x0395: return false; // GREEK CAPITAL LETTER EPSILON 65 case 0x0396: return false; // GREEK CAPITAL LETTER ZETA 66 case 0x0397: return false; // GREEK CAPITAL LETTER ETA 67 case 0x0398: return false; // GREEK CAPITAL LETTER THETA 68 case 0x0399: return false; // GREEK CAPITAL LETTER IOTA 69 case 0x039A: return false; // GREEK CAPITAL LETTER KAPPA 70 case 0x039B: return false; // GREEK CAPITAL LETTER LAMDA 71 case 0x039C: return false; // GREEK CAPITAL LETTER MU 72 case 0x039D: return false; // GREEK CAPITAL LETTER NU 73 case 0x039E: return false; // GREEK CAPITAL LETTER XI 74 case 0x039F: return false; // GREEK CAPITAL LETTER OMICRON 75 case 0x03A0: return false; // GREEK CAPITAL LETTER PI 76 case 0x03A1: return false; // GREEK CAPITAL LETTER RHO 77 case 0x03A2: return true; // place holder to enable table lookup 78 case 0x03A3: return false; // GREEK CAPITAL LETTER SIGMA 79 case 0x03A4: return false; // GREEK CAPITAL LETTER TAU 80 case 0x03A5: return false; // GREEK CAPITAL LETTER UPSILON 81 case 0x03A6: return false; // GREEK CAPITAL LETTER PHI 82 case 0x03A7: return false; // GREEK CAPITAL LETTER CHI 83 case 0x03A8: return false; // GREEK CAPITAL LETTER PSI 84 case 0x03A9: return false; // GREEK CAPITAL LETTER OMEGA 85 case 0x03AA: return false; // GREEK CAPITAL LETTER IOTA WITH DIALYTIKA 86 case 0x03AB: return false; // GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA 87 case 0x03AC: return false; // GREEK SMALL LETTER ALPHA WITH TONOS 88 case 0x03AD: return false; // GREEK SMALL LETTER EPSILON WITH TONOS 89 case 0x03AE: return false; // GREEK SMALL LETTER ETA WITH TONOS 90 case 0x03AF: return false; // GREEK SMALL LETTER IOTA WITH TONOS 91 case 0x03B0: return false; // GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS 92 case 0x03B1: return false; // GREEK SMALL LETTER ALPHA 93 case 0x03B2: return false; // GREEK SMALL LETTER BETA 94 case 0x03B3: return false; // GREEK SMALL LETTER GAMMA 95 case 0x03B4: return false; // GREEK SMALL LETTER DELTA 96 case 0x03B5: return false; // GREEK SMALL LETTER EPSILON 97 case 0x03B6: return false; // GREEK SMALL LETTER ZETA 98 case 0x03B7: return false; // GREEK SMALL LETTER ETA 99 case 0x03B8: return false; // GREEK SMALL LETTER THETA 100 case 0x03B9: return false; // GREEK SMALL LETTER IOTA 101 case 0x03BA: return false; // GREEK SMALL LETTER KAPPA 102 case 0x03BB: return false; // GREEK SMALL LETTER LAMDA 103 case 0x03BC: return false; // GREEK SMALL LETTER MU 104 case 0x03BD: return false; // GREEK SMALL LETTER NU 105 case 0x03BE: return false; // GREEK SMALL LETTER XI 106 case 0x03BF: return false; // GREEK SMALL LETTER OMICRON 107 case 0x03C0: return false; // GREEK SMALL LETTER PI 108 case 0x03C1: return false; // GREEK SMALL LETTER RHO 109 case 0x03C2: return false; // GREEK SMALL LETTER FINAL SIGMA 110 case 0x03C3: return false; // GREEK SMALL LETTER SIGMA 111 case 0x03C4: return false; // GREEK SMALL LETTER TAU 112 case 0x03C5: return false; // GREEK SMALL LETTER UPSILON 113 case 0x03C6: return false; // GREEK SMALL LETTER PHI 114 case 0x03C7: return false; // GREEK SMALL LETTER CHI 115 case 0x03C8: return false; // GREEK SMALL LETTER PSI 116 case 0x03C9: return false; // GREEK SMALL LETTER OMEGA 117 case 0x03CA: return false; // GREEK SMALL LETTER IOTA WITH DIALYTIKA 118 case 0x03CB: return false; // GREEK SMALL LETTER UPSILON WITH DIALYTIKA 119 case 0x03CC: return false; // GREEK SMALL LETTER OMICRON WITH TONOS 120 case 0x03CD: return false; // GREEK SMALL LETTER UPSILON WITH TONOS 121 case 0x03CE: return false; // GREEK SMALL LETTER OMEGA WITH TONOS 122 } 123 switch (c) { // overlap with Latin-1 124 case 0x00A0: return false; // non-breaking space 125 case 0x00A1: return true; // place holder to enable table lookup 126 case 0x00A2: return true; // place holder to enable table lookup 127 case 0x00A3: return false; // POUND SIGN 128 case 0x00A4: return true; // place holder to enable table lookup 129 case 0x00A5: return true; // place holder to enable table lookup 130 case 0x00A6: return false; // BROKEN BAR 131 case 0x00A7: return false; // SECTION SIGN 132 case 0x00A8: return false; // DIAERESIS 133 case 0x00A9: return false; // COPYRIGHT SIGN 134 case 0x00AA: return true; // place holder to enable table lookup 135 case 0x00AB: return false; // LEFT-POINTING DOUBLE ANGLE QUOTATION MARK 136 case 0x00AC: return false; // NOT SIGN 137 case 0x00AD: return false; // SOFT HYPHEN 138 case 0x00AE: return true; // place holder to enable table lookup 139 case 0x00AF: return true; // place holder to enable table lookup 140 case 0x00B0: return false; // DEGREE SIGN 141 case 0x00B1: return false; // PLUS-MINUS SIGN 142 case 0x00B2: return false; // SUPERSCRIPT TWO 143 case 0x00B3: return false; // SUPERSCRIPT THREE 144 case 0x00B4: return true; // place holder to enable table lookup 145 case 0x00B5: return true; // place holder to enable table lookup 146 case 0x00B6: return true; // place holder to enable table lookup 147 case 0x00B7: return false; // MIDDLE DOT 148 case 0x00B8: return true; // place holder to enable table lookup 149 case 0x00B9: return true; // place holder to enable table lookup 150 case 0x00BA: return true; // place holder to enable table lookup 151 case 0x00BB: return false; // RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK 152 case 0x00BC: return true; // place holder to enable table lookup 153 case 0x00BD: return false; // VULGAR FRACTION ONE HALF 154 } 155 switch (c) { // assorted characters 156 case 0x2015: return false; // HORIZONTAL BAR 157 // A bug in Java 1.4 and 1.3 prevents a LEFT and RIGHT 158 // SINGLE QUOTATION MARKs 159 // from being correctly output 160 // as the actual character in this encoding 161 // even though it does exist in the 162 // ISO-8859-7 character set. 163 // case 0x2018: return false; // LEFT SINGLE QUOTATION MARK 164 // case 0x2019: return false; // RIGHT SINGLE QUOTATION MARK 165 } 166 return true; 167 } 168 169 }