1 | /* |
---|
2 | * LispCharacter.java |
---|
3 | * |
---|
4 | * Copyright (C) 2002-2007 Peter Graves |
---|
5 | * $Id: LispCharacter.java 14787 2015-06-12 09:18:37Z mevenson $ |
---|
6 | * |
---|
7 | * This program is free software; you can redistribute it and/or |
---|
8 | * modify it under the terms of the GNU General Public License |
---|
9 | * as published by the Free Software Foundation; either version 2 |
---|
10 | * of the License, or (at your option) any later version. |
---|
11 | * |
---|
12 | * This program is distributed in the hope that it will be useful, |
---|
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
15 | * GNU General Public License for more details. |
---|
16 | * |
---|
17 | * You should have received a copy of the GNU General Public License |
---|
18 | * along with this program; if not, write to the Free Software |
---|
19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
---|
20 | * |
---|
21 | * As a special exception, the copyright holders of this library give you |
---|
22 | * permission to link this library with independent modules to produce an |
---|
23 | * executable, regardless of the license terms of these independent |
---|
24 | * modules, and to copy and distribute the resulting executable under |
---|
25 | * terms of your choice, provided that you also meet, for each linked |
---|
26 | * independent module, the terms and conditions of the license of that |
---|
27 | * module. An independent module is a module which is not derived from |
---|
28 | * or based on this library. If you modify this library, you may extend |
---|
29 | * this exception to your version of the library, but you are not |
---|
30 | * obligated to do so. If you do not wish to do so, delete this |
---|
31 | * exception statement from your version. |
---|
32 | */ |
---|
33 | |
---|
34 | package org.armedbear.lisp; |
---|
35 | |
---|
36 | import static org.armedbear.lisp.Lisp.*; |
---|
37 | import java.util.HashMap; |
---|
38 | import java.util.Map; |
---|
39 | |
---|
40 | public final class LispCharacter extends LispObject |
---|
41 | { |
---|
42 | public static final LispCharacter[] constants; |
---|
43 | public static final CharHashMap<LispCharacter> lispChars; |
---|
44 | |
---|
45 | static |
---|
46 | { |
---|
47 | lispChars = new CharHashMap<LispCharacter>(LispCharacter.class,null){ |
---|
48 | public LispCharacter get(char c) { |
---|
49 | LispCharacter lc = super.get(c); |
---|
50 | if (lc==null) { |
---|
51 | lc = new LispCharacter(c); |
---|
52 | put(c, lc); |
---|
53 | } |
---|
54 | return lc; |
---|
55 | } |
---|
56 | }; |
---|
57 | constants = lispChars.constants; |
---|
58 | for (int i = constants.length; i-- > 0;) |
---|
59 | constants[i] = new LispCharacter((char)i); |
---|
60 | } |
---|
61 | |
---|
62 | public final char value; |
---|
63 | private String name; |
---|
64 | public static LispCharacter getInstance(char c) |
---|
65 | { |
---|
66 | return lispChars.get(c); |
---|
67 | } |
---|
68 | |
---|
69 | // This needs to be public for the compiler. |
---|
70 | private LispCharacter(char c) |
---|
71 | { |
---|
72 | this.value = c; |
---|
73 | } |
---|
74 | |
---|
75 | @Override |
---|
76 | public LispObject typeOf() |
---|
77 | { |
---|
78 | if (isStandardChar()) |
---|
79 | return Symbol.STANDARD_CHAR; |
---|
80 | return Symbol.CHARACTER; |
---|
81 | } |
---|
82 | |
---|
83 | @Override |
---|
84 | public LispObject classOf() |
---|
85 | { |
---|
86 | return BuiltInClass.CHARACTER; |
---|
87 | } |
---|
88 | |
---|
89 | @Override |
---|
90 | public LispObject getDescription() |
---|
91 | { |
---|
92 | StringBuilder sb = new StringBuilder("character #\\"); |
---|
93 | sb.append(value); |
---|
94 | sb.append(" char-code #x"); |
---|
95 | sb.append(Integer.toHexString(value)); |
---|
96 | return new SimpleString(sb); |
---|
97 | } |
---|
98 | |
---|
99 | @Override |
---|
100 | public LispObject typep(LispObject type) |
---|
101 | { |
---|
102 | if (type == Symbol.CHARACTER) |
---|
103 | return T; |
---|
104 | if (type == BuiltInClass.CHARACTER) |
---|
105 | return T; |
---|
106 | if (type == Symbol.BASE_CHAR) |
---|
107 | return T; |
---|
108 | if (type == Symbol.STANDARD_CHAR) |
---|
109 | return isStandardChar() ? T : NIL; |
---|
110 | return super.typep(type); |
---|
111 | } |
---|
112 | |
---|
113 | @Override |
---|
114 | public boolean characterp() |
---|
115 | { |
---|
116 | return true; |
---|
117 | } |
---|
118 | |
---|
119 | @Override |
---|
120 | public LispObject STRING() |
---|
121 | { |
---|
122 | return new SimpleString(value); |
---|
123 | } |
---|
124 | |
---|
125 | boolean isStandardChar() |
---|
126 | { |
---|
127 | if (value >= ' ' && value < 127) |
---|
128 | return true; |
---|
129 | if (value == '\n') |
---|
130 | return true; |
---|
131 | return false; |
---|
132 | } |
---|
133 | |
---|
134 | @Override |
---|
135 | public boolean eql(char c) |
---|
136 | { |
---|
137 | return value == c; |
---|
138 | } |
---|
139 | |
---|
140 | @Override |
---|
141 | public boolean eql(LispObject obj) |
---|
142 | { |
---|
143 | if (this == obj) |
---|
144 | return true; |
---|
145 | if (obj instanceof LispCharacter) |
---|
146 | { |
---|
147 | if (value == ((LispCharacter)obj).value) |
---|
148 | return true; |
---|
149 | } |
---|
150 | return false; |
---|
151 | } |
---|
152 | |
---|
153 | @Override |
---|
154 | public boolean equal(LispObject obj) |
---|
155 | { |
---|
156 | if (this == obj) |
---|
157 | return true; |
---|
158 | if (obj instanceof LispCharacter) |
---|
159 | { |
---|
160 | if (value == ((LispCharacter)obj).value) |
---|
161 | return true; |
---|
162 | } |
---|
163 | return false; |
---|
164 | } |
---|
165 | |
---|
166 | @Override |
---|
167 | public boolean equalp(LispObject obj) |
---|
168 | { |
---|
169 | if (this == obj) |
---|
170 | return true; |
---|
171 | if (obj instanceof LispCharacter) |
---|
172 | { |
---|
173 | if (value == ((LispCharacter)obj).value) |
---|
174 | return true; |
---|
175 | return LispCharacter.toLowerCase(value) == LispCharacter.toLowerCase(((LispCharacter)obj).value); |
---|
176 | } |
---|
177 | return false; |
---|
178 | } |
---|
179 | |
---|
180 | public static char getValue(LispObject obj) |
---|
181 | { |
---|
182 | if (obj instanceof LispCharacter) |
---|
183 | return ((LispCharacter)obj).value; |
---|
184 | type_error(obj, Symbol.CHARACTER); |
---|
185 | // Not reached. |
---|
186 | return 0; |
---|
187 | } |
---|
188 | |
---|
189 | public final char getValue() |
---|
190 | { |
---|
191 | return value; |
---|
192 | } |
---|
193 | |
---|
194 | @Override |
---|
195 | public Object javaInstance() |
---|
196 | { |
---|
197 | return Character.valueOf(value); |
---|
198 | } |
---|
199 | |
---|
200 | @Override |
---|
201 | public Object javaInstance(Class c) |
---|
202 | { |
---|
203 | return javaInstance(); |
---|
204 | } |
---|
205 | |
---|
206 | @Override |
---|
207 | public int sxhash() |
---|
208 | { |
---|
209 | return value; |
---|
210 | } |
---|
211 | |
---|
212 | @Override |
---|
213 | public int psxhash() |
---|
214 | { |
---|
215 | return Character.toUpperCase(value); |
---|
216 | } |
---|
217 | |
---|
218 | /** See LispObject.getStringValue() */ |
---|
219 | @Override |
---|
220 | public String getStringValue() |
---|
221 | { |
---|
222 | return String.valueOf(value); |
---|
223 | } |
---|
224 | |
---|
225 | @Override |
---|
226 | public final String printObject() |
---|
227 | { |
---|
228 | final LispThread thread = LispThread.currentThread(); |
---|
229 | boolean printReadably = (Symbol.PRINT_READABLY.symbolValue(thread) != NIL); |
---|
230 | // "Specifically, if *PRINT-READABLY* is true, printing proceeds as if |
---|
231 | // *PRINT-ESCAPE*, *PRINT-ARRAY*, and *PRINT-GENSYM* were also true, |
---|
232 | // and as if *PRINT-LENGTH*, *PRINT-LEVEL*, and *PRINT-LINES* were |
---|
233 | // false." |
---|
234 | boolean printEscape = |
---|
235 | printReadably || (Symbol.PRINT_ESCAPE.symbolValue(thread) != NIL); |
---|
236 | StringBuilder sb = new StringBuilder(); |
---|
237 | if (printEscape) |
---|
238 | { |
---|
239 | sb.append("#\\"); |
---|
240 | switch (value) |
---|
241 | { |
---|
242 | case 0: |
---|
243 | sb.append("Null"); |
---|
244 | break; |
---|
245 | case 7: |
---|
246 | sb.append("Bell"); |
---|
247 | break; |
---|
248 | case '\b': |
---|
249 | sb.append("Backspace"); |
---|
250 | break; |
---|
251 | case '\t': |
---|
252 | sb.append("Tab"); |
---|
253 | break; |
---|
254 | case '\n': |
---|
255 | sb.append("Newline"); |
---|
256 | break; |
---|
257 | case '\f': |
---|
258 | sb.append("Page"); |
---|
259 | break; |
---|
260 | case '\r': |
---|
261 | sb.append("Return"); |
---|
262 | break; |
---|
263 | case 27: |
---|
264 | sb.append("Escape"); |
---|
265 | break; |
---|
266 | case 127: |
---|
267 | sb.append("Rubout"); |
---|
268 | break; |
---|
269 | case 160: |
---|
270 | sb.append("No-break_space"); |
---|
271 | break; |
---|
272 | default: |
---|
273 | if (name!=null) |
---|
274 | sb.append(name); |
---|
275 | else |
---|
276 | sb.append(value); |
---|
277 | break; |
---|
278 | } |
---|
279 | } |
---|
280 | else |
---|
281 | { |
---|
282 | sb.append(value); |
---|
283 | } |
---|
284 | return sb.toString(); |
---|
285 | } |
---|
286 | |
---|
287 | // ### character |
---|
288 | private static final Primitive CHARACTER = |
---|
289 | new Primitive(Symbol.CHARACTER, "character") |
---|
290 | { |
---|
291 | @Override |
---|
292 | public LispObject execute(LispObject arg) |
---|
293 | { |
---|
294 | if (arg instanceof LispCharacter) |
---|
295 | return arg; |
---|
296 | if (arg instanceof AbstractString) |
---|
297 | { |
---|
298 | if (arg.length() == 1) |
---|
299 | return ((AbstractString)arg).AREF(0); |
---|
300 | } |
---|
301 | else if (arg instanceof Symbol) |
---|
302 | { |
---|
303 | String name = ((Symbol)arg).getName(); |
---|
304 | if (name.length() == 1) |
---|
305 | return LispCharacter.getInstance(name.charAt(0)); |
---|
306 | } |
---|
307 | return type_error(arg, Symbol.CHARACTER_DESIGNATOR); |
---|
308 | } |
---|
309 | }; |
---|
310 | |
---|
311 | // ### whitespacep |
---|
312 | private static final Primitive WHITESPACEP = |
---|
313 | new Primitive("whitespacep", PACKAGE_SYS, true) |
---|
314 | { |
---|
315 | @Override |
---|
316 | public LispObject execute(LispObject arg) |
---|
317 | { |
---|
318 | return Character.isWhitespace(LispCharacter.getValue(arg)) ? T : NIL; |
---|
319 | } |
---|
320 | }; |
---|
321 | |
---|
322 | // ### char-code |
---|
323 | private static final Primitive CHAR_CODE = |
---|
324 | new Primitive(Symbol.CHAR_CODE, "character") |
---|
325 | { |
---|
326 | @Override |
---|
327 | public LispObject execute(LispObject arg) |
---|
328 | { |
---|
329 | int n = LispCharacter.getValue(arg); |
---|
330 | return Fixnum.getInstance(n); |
---|
331 | } |
---|
332 | }; |
---|
333 | |
---|
334 | // ### char-int |
---|
335 | private static final Primitive CHAR_INT = |
---|
336 | new Primitive(Symbol.CHAR_INT, "character") |
---|
337 | { |
---|
338 | @Override |
---|
339 | public LispObject execute(LispObject arg) |
---|
340 | { |
---|
341 | int n = LispCharacter.getValue(arg); |
---|
342 | return Fixnum.getInstance(n); |
---|
343 | } |
---|
344 | }; |
---|
345 | |
---|
346 | // ### code-char |
---|
347 | private static final Primitive CODE_CHAR = |
---|
348 | new Primitive(Symbol.CODE_CHAR, "code") |
---|
349 | { |
---|
350 | @Override |
---|
351 | public LispObject execute(LispObject arg) |
---|
352 | { |
---|
353 | int n = Fixnum.getValue(arg); |
---|
354 | if (Character.isValidCodePoint(n)) |
---|
355 | return LispCharacter.getInstance((char)n); |
---|
356 | return NIL; |
---|
357 | } |
---|
358 | }; |
---|
359 | |
---|
360 | // ### characterp |
---|
361 | private static final Primitive CHARACTERP = |
---|
362 | new Primitive(Symbol.CHARACTERP, "object") |
---|
363 | { |
---|
364 | @Override |
---|
365 | public LispObject execute(LispObject arg) |
---|
366 | { |
---|
367 | return arg instanceof LispCharacter ? T : NIL; |
---|
368 | } |
---|
369 | }; |
---|
370 | |
---|
371 | // ### both-case-p |
---|
372 | private static final Primitive BOTH_CASE_P = |
---|
373 | new Primitive(Symbol.BOTH_CASE_P, "character") |
---|
374 | { |
---|
375 | @Override |
---|
376 | public LispObject execute(LispObject arg) |
---|
377 | { |
---|
378 | char c = getValue(arg); |
---|
379 | if (Character.isLowerCase(c) || Character.isUpperCase(c)) |
---|
380 | return T; |
---|
381 | return NIL; |
---|
382 | } |
---|
383 | }; |
---|
384 | |
---|
385 | // ### lower-case-p |
---|
386 | private static final Primitive LOWER_CASE_P = |
---|
387 | new Primitive(Symbol.LOWER_CASE_P, "character") |
---|
388 | { |
---|
389 | @Override |
---|
390 | public LispObject execute(LispObject arg) |
---|
391 | { |
---|
392 | return Character.isLowerCase(getValue(arg)) ? T : NIL; |
---|
393 | } |
---|
394 | }; |
---|
395 | |
---|
396 | // ### upper-case-p |
---|
397 | private static final Primitive UPPER_CASE_P = |
---|
398 | new Primitive(Symbol.UPPER_CASE_P, "character") |
---|
399 | { |
---|
400 | @Override |
---|
401 | public LispObject execute(LispObject arg) |
---|
402 | { |
---|
403 | return Character.isUpperCase(getValue(arg)) ? T : NIL; |
---|
404 | } |
---|
405 | }; |
---|
406 | |
---|
407 | // ### char-downcase |
---|
408 | private static final Primitive CHAR_DOWNCASE = |
---|
409 | new Primitive(Symbol.CHAR_DOWNCASE, "character") |
---|
410 | { |
---|
411 | @Override |
---|
412 | public LispObject execute(LispObject arg) |
---|
413 | { |
---|
414 | final char c = LispCharacter.getValue(arg); |
---|
415 | if (c < 128) |
---|
416 | return constants[LOWER_CASE_CHARS[c]]; |
---|
417 | return LispCharacter.getInstance(toLowerCase(c)); |
---|
418 | } |
---|
419 | }; |
---|
420 | |
---|
421 | // ### char-upcase |
---|
422 | private static final Primitive CHAR_UPCASE = |
---|
423 | new Primitive(Symbol.CHAR_UPCASE, "character") |
---|
424 | { |
---|
425 | @Override |
---|
426 | public LispObject execute(LispObject arg) |
---|
427 | { |
---|
428 | final char c; |
---|
429 | c = LispCharacter.getValue(arg); |
---|
430 | if (c < 128) |
---|
431 | return constants[UPPER_CASE_CHARS[c]]; |
---|
432 | return LispCharacter.getInstance(toUpperCase(c)); |
---|
433 | } |
---|
434 | }; |
---|
435 | |
---|
436 | // ### digit-char |
---|
437 | private static final Primitive DIGIT_CHAR = |
---|
438 | new Primitive(Symbol.DIGIT_CHAR, "weight &optional radix") |
---|
439 | { |
---|
440 | @Override |
---|
441 | public LispObject execute(LispObject arg) |
---|
442 | { |
---|
443 | if (arg instanceof Bignum) |
---|
444 | return NIL; |
---|
445 | |
---|
446 | int weight = Fixnum.getValue(arg); |
---|
447 | if (weight < 10) |
---|
448 | return constants['0'+weight]; |
---|
449 | return NIL; |
---|
450 | } |
---|
451 | @Override |
---|
452 | public LispObject execute(LispObject first, LispObject second) |
---|
453 | |
---|
454 | { |
---|
455 | int radix; |
---|
456 | if (second instanceof Fixnum) |
---|
457 | radix = ((Fixnum)second).value; |
---|
458 | else |
---|
459 | radix = -1; |
---|
460 | |
---|
461 | if (radix < 2 || radix > 36) |
---|
462 | return type_error(second, |
---|
463 | list(Symbol.INTEGER, Fixnum.TWO, |
---|
464 | Fixnum.constants[36])); |
---|
465 | if (first instanceof Bignum) |
---|
466 | return NIL; |
---|
467 | int weight = Fixnum.getValue(first); |
---|
468 | if (weight >= radix) |
---|
469 | return NIL; |
---|
470 | if (weight < 10) |
---|
471 | return constants['0' + weight]; |
---|
472 | return constants['A' + weight - 10]; |
---|
473 | } |
---|
474 | }; |
---|
475 | |
---|
476 | // ### digit-char-p char &optional radix => weight |
---|
477 | private static final Primitive DIGIT_CHAR_P = |
---|
478 | new Primitive(Symbol.DIGIT_CHAR_P, "char &optional radix") |
---|
479 | { |
---|
480 | @Override |
---|
481 | public LispObject execute(LispObject arg) |
---|
482 | { |
---|
483 | final int n = Character.digit(LispCharacter.getValue(arg), 10); |
---|
484 | return n < 0 ? NIL : Fixnum.getInstance(n); |
---|
485 | } |
---|
486 | @Override |
---|
487 | public LispObject execute(LispObject first, LispObject second) |
---|
488 | |
---|
489 | { |
---|
490 | char c; |
---|
491 | c = LispCharacter.getValue(first); |
---|
492 | if (second instanceof Fixnum) |
---|
493 | { |
---|
494 | int radix = ((Fixnum)second).value; |
---|
495 | if (radix >= 2 && radix <= 36) |
---|
496 | { |
---|
497 | int n = Character.digit(c, radix); |
---|
498 | return n < 0 ? NIL : Fixnum.constants[n]; |
---|
499 | } |
---|
500 | } |
---|
501 | return type_error(second, |
---|
502 | list(Symbol.INTEGER, Fixnum.TWO, |
---|
503 | Fixnum.constants[36])); |
---|
504 | } |
---|
505 | }; |
---|
506 | |
---|
507 | // ### standard-char-p |
---|
508 | private static final Primitive STANDARD_CHAR_P = |
---|
509 | new Primitive(Symbol.STANDARD_CHAR_P, "character") |
---|
510 | { |
---|
511 | @Override |
---|
512 | public LispObject execute(LispObject arg) |
---|
513 | { |
---|
514 | return checkCharacter(arg).isStandardChar() ? T : NIL; |
---|
515 | } |
---|
516 | }; |
---|
517 | |
---|
518 | // ### graphic-char-p |
---|
519 | private static final Primitive GRAPHIC_CHAR_P = |
---|
520 | new Primitive(Symbol.GRAPHIC_CHAR_P, "char") |
---|
521 | { |
---|
522 | @Override |
---|
523 | public LispObject execute(LispObject arg) |
---|
524 | { |
---|
525 | char c = LispCharacter.getValue(arg); |
---|
526 | if (c >= ' ' && c < 127) |
---|
527 | return T; |
---|
528 | return Character.isISOControl(c) ? NIL : T; |
---|
529 | } |
---|
530 | }; |
---|
531 | |
---|
532 | // ### alpha-char-p |
---|
533 | private static final Primitive ALPHA_CHAR_P = |
---|
534 | new Primitive(Symbol.ALPHA_CHAR_P, "character") |
---|
535 | { |
---|
536 | @Override |
---|
537 | public LispObject execute(LispObject arg) |
---|
538 | { |
---|
539 | return Character.isLetter(LispCharacter.getValue(arg)) ? T : NIL; |
---|
540 | } |
---|
541 | }; |
---|
542 | |
---|
543 | // ### alphanumericp |
---|
544 | private static final Primitive ALPHANUMERICP = |
---|
545 | new Primitive(Symbol.ALPHANUMERICP, "character") |
---|
546 | { |
---|
547 | @Override |
---|
548 | public LispObject execute(LispObject arg) |
---|
549 | { |
---|
550 | return Character.isLetterOrDigit(LispCharacter.getValue(arg)) ? T : NIL; |
---|
551 | } |
---|
552 | }; |
---|
553 | |
---|
554 | public static final int nameToChar(String s) |
---|
555 | { |
---|
556 | String lower = s.toLowerCase(); |
---|
557 | LispCharacter lc = namedToChar.get(lower); |
---|
558 | if (lc!=null) return lc.value; |
---|
559 | if (lower.length() == 5 |
---|
560 | && lower.startsWith("u")) { |
---|
561 | try { |
---|
562 | final int i = Integer.parseInt(lower.substring(1, 5), 16); |
---|
563 | return i; |
---|
564 | } catch (NumberFormatException e) {}; |
---|
565 | } |
---|
566 | if (lower.equals("nul")) |
---|
567 | return 0; |
---|
568 | if (lower.equals("bel")) |
---|
569 | return 7; |
---|
570 | if (lower.equals("bs")) |
---|
571 | return '\b'; |
---|
572 | if (lower.equals("ht")) |
---|
573 | return '\t'; |
---|
574 | if (lower.equals("linefeed") || lower.equals("lf")) |
---|
575 | return '\n'; |
---|
576 | if (lower.equals("ff")) |
---|
577 | return '\f'; |
---|
578 | if (lower.equals("cr")) |
---|
579 | return '\r'; |
---|
580 | if (lower.equals("esc")) |
---|
581 | return 27; |
---|
582 | if (lower.equals("space") || lower.equals("sp")) |
---|
583 | return ' '; |
---|
584 | if (lower.equals("rubout") || lower.equals("del") || lower.equals("delete")) |
---|
585 | return 127; |
---|
586 | if (lower.equals("no-break_space")) |
---|
587 | return 160; |
---|
588 | if (lower.startsWith("u")) { |
---|
589 | int length = lower.length(); |
---|
590 | if (length > 1 && length < 5) { |
---|
591 | try { |
---|
592 | final int i = Integer.parseInt(lower.substring(1), 16); |
---|
593 | return i; |
---|
594 | } catch (NumberFormatException e) {}; |
---|
595 | // fall through |
---|
596 | } |
---|
597 | } |
---|
598 | |
---|
599 | // Unknown. |
---|
600 | return -1; |
---|
601 | } |
---|
602 | |
---|
603 | // ### name-char |
---|
604 | private static final Primitive NAME_CHAR = |
---|
605 | new Primitive(Symbol.NAME_CHAR, "name") |
---|
606 | { |
---|
607 | @Override |
---|
608 | public LispObject execute(LispObject arg) |
---|
609 | { |
---|
610 | String s = arg.STRING().getStringValue(); |
---|
611 | int n = nameToChar(s); |
---|
612 | return n >= 0 ? LispCharacter.getInstance((char)n) : NIL; |
---|
613 | } |
---|
614 | }; |
---|
615 | |
---|
616 | public static final String charToName(char c) |
---|
617 | { |
---|
618 | switch (c) |
---|
619 | { |
---|
620 | case 0: |
---|
621 | return "Null"; |
---|
622 | case 7: |
---|
623 | return "Bell"; |
---|
624 | case '\b': |
---|
625 | return "Backspace"; |
---|
626 | case '\t': |
---|
627 | return "Tab"; |
---|
628 | case '\n': |
---|
629 | return "Newline"; |
---|
630 | case '\f': |
---|
631 | return "Page"; |
---|
632 | case '\r': |
---|
633 | return "Return"; |
---|
634 | case 27: |
---|
635 | return "Escape"; |
---|
636 | case ' ': |
---|
637 | return "Space"; |
---|
638 | case 127: |
---|
639 | return "Rubout"; |
---|
640 | case 160: |
---|
641 | return "No-break_space"; |
---|
642 | } |
---|
643 | |
---|
644 | if (c<0 || c>255) return null; |
---|
645 | return lispChars.get(c).name; |
---|
646 | } |
---|
647 | |
---|
648 | // ### char-name |
---|
649 | private static final Primitive CHAR_NAME = |
---|
650 | new Primitive(Symbol.CHAR_NAME, "character") |
---|
651 | { |
---|
652 | @Override |
---|
653 | public LispObject execute(LispObject arg) |
---|
654 | { |
---|
655 | String name = charToName(LispCharacter.getValue(arg)); |
---|
656 | return name != null ? new SimpleString(name) : NIL; |
---|
657 | } |
---|
658 | }; |
---|
659 | |
---|
660 | public static final char toUpperCase(char c) |
---|
661 | { |
---|
662 | if (c < 128) |
---|
663 | return UPPER_CASE_CHARS[c]; |
---|
664 | return Character.toUpperCase(c); |
---|
665 | } |
---|
666 | |
---|
667 | static int maxNamedChar = 0; |
---|
668 | static Map<String, LispCharacter> namedToChar = new HashMap<String, LispCharacter>(); |
---|
669 | |
---|
670 | static void setCharNames(int i, String[] string) { |
---|
671 | int settingChar = i; |
---|
672 | int index = 0; |
---|
673 | int stringLen = string.length; |
---|
674 | while(stringLen-->0) { |
---|
675 | setCharName(settingChar,string[index]); |
---|
676 | index++; |
---|
677 | settingChar++; |
---|
678 | } |
---|
679 | if (maxNamedChar<settingChar) maxNamedChar = settingChar; |
---|
680 | } |
---|
681 | |
---|
682 | static void setCharName(int settingChar, String string) { |
---|
683 | LispCharacter c = lispChars.get((char)settingChar); |
---|
684 | c.name = string; |
---|
685 | namedToChar.put(string.toLowerCase(), c); |
---|
686 | } |
---|
687 | |
---|
688 | static { |
---|
689 | new CharNameMaker0(); |
---|
690 | } |
---|
691 | |
---|
692 | static class CharNameMaker0{ |
---|
693 | { |
---|
694 | setCharNames(0,new String[]{"Null", "Soh", "Stx", "Etx", "Eot", "Enq", "Ack", "Bell", "Backspace", "Tab", "Newline", "Vt", "Page", "Return", "So", "Si", "Dle", "Dc1", "Dc2", "Dc3", "Dc4", "Nak", "Syn", "Etb", "Can", "Em", "Sub", "Escape", "Fs", "Gs", "Rs", "Us"}); |
---|
695 | setCharNames(128,new String[]{"U0080", "U0081", "U0082", "U0083", "U0084", "U0085", "U0086", "U0087", "U0088", "U0089", "U008a", "U008b", "U008c", "U008d", "U008e", "U008f", "U0090", "U0091", "U0092", "U0093", "U0094", "U0095", "U0096", "U0097", "U0098", "U0099", "U009a", "U009b", "U009c", "U009d", "U009e", "U009f"}); |
---|
696 | } |
---|
697 | } |
---|
698 | |
---|
699 | static final char[] UPPER_CASE_CHARS = new char[128]; |
---|
700 | |
---|
701 | static |
---|
702 | { |
---|
703 | for (int i = UPPER_CASE_CHARS.length; i-- > 0;) |
---|
704 | UPPER_CASE_CHARS[i] = Character.toUpperCase((char)i); |
---|
705 | } |
---|
706 | |
---|
707 | public static final char toLowerCase(char c) |
---|
708 | { |
---|
709 | if (c < 128) |
---|
710 | return LOWER_CASE_CHARS[c]; |
---|
711 | return Character.toLowerCase(c); |
---|
712 | } |
---|
713 | |
---|
714 | static final char[] LOWER_CASE_CHARS = new char[128]; |
---|
715 | |
---|
716 | static |
---|
717 | { |
---|
718 | for (int i = LOWER_CASE_CHARS.length; i-- > 0;) |
---|
719 | LOWER_CASE_CHARS[i] = Character.toLowerCase((char)i); |
---|
720 | } |
---|
721 | } |
---|