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 }