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24d56127 LC |
1 | /* Character handling in C locale. |
2 | ||
f0007cad | 3 | Copyright 2000-2003, 2006, 2009-2012 Free Software Foundation, Inc. |
24d56127 LC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public License | |
16 | along with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
19 | #include <config.h> | |
20 | ||
21 | /* Specification. */ | |
22 | #define NO_C_CTYPE_MACROS | |
23 | #include "c-ctype.h" | |
24 | ||
25 | /* The function isascii is not locale dependent. Its use in EBCDIC is | |
26 | questionable. */ | |
27 | bool | |
28 | c_isascii (int c) | |
29 | { | |
30 | return (c >= 0x00 && c <= 0x7f); | |
31 | } | |
32 | ||
33 | bool | |
34 | c_isalnum (int c) | |
35 | { | |
36 | #if C_CTYPE_CONSECUTIVE_DIGITS \ | |
37 | && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE | |
38 | #if C_CTYPE_ASCII | |
39 | return ((c >= '0' && c <= '9') | |
40 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z')); | |
41 | #else | |
42 | return ((c >= '0' && c <= '9') | |
43 | || (c >= 'A' && c <= 'Z') | |
44 | || (c >= 'a' && c <= 'z')); | |
45 | #endif | |
46 | #else | |
47 | switch (c) | |
48 | { | |
49 | case '0': case '1': case '2': case '3': case '4': case '5': | |
50 | case '6': case '7': case '8': case '9': | |
51 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
52 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
53 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
54 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
55 | case 'Y': case 'Z': | |
56 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
57 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
58 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
59 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
60 | case 'y': case 'z': | |
61 | return 1; | |
62 | default: | |
63 | return 0; | |
64 | } | |
65 | #endif | |
66 | } | |
67 | ||
68 | bool | |
69 | c_isalpha (int c) | |
70 | { | |
71 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE | |
72 | #if C_CTYPE_ASCII | |
73 | return ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'); | |
74 | #else | |
75 | return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')); | |
76 | #endif | |
77 | #else | |
78 | switch (c) | |
79 | { | |
80 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
81 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
82 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
83 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
84 | case 'Y': case 'Z': | |
85 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
86 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
87 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
88 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
89 | case 'y': case 'z': | |
90 | return 1; | |
91 | default: | |
92 | return 0; | |
93 | } | |
94 | #endif | |
95 | } | |
96 | ||
97 | bool | |
98 | c_isblank (int c) | |
99 | { | |
100 | return (c == ' ' || c == '\t'); | |
101 | } | |
102 | ||
103 | bool | |
104 | c_iscntrl (int c) | |
105 | { | |
106 | #if C_CTYPE_ASCII | |
107 | return ((c & ~0x1f) == 0 || c == 0x7f); | |
108 | #else | |
109 | switch (c) | |
110 | { | |
111 | case ' ': case '!': case '"': case '#': case '$': case '%': | |
112 | case '&': case '\'': case '(': case ')': case '*': case '+': | |
113 | case ',': case '-': case '.': case '/': | |
114 | case '0': case '1': case '2': case '3': case '4': case '5': | |
115 | case '6': case '7': case '8': case '9': | |
116 | case ':': case ';': case '<': case '=': case '>': case '?': | |
117 | case '@': | |
118 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
119 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
120 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
121 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
122 | case 'Y': case 'Z': | |
123 | case '[': case '\\': case ']': case '^': case '_': case '`': | |
124 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
125 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
126 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
127 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
128 | case 'y': case 'z': | |
129 | case '{': case '|': case '}': case '~': | |
130 | return 0; | |
131 | default: | |
132 | return 1; | |
133 | } | |
134 | #endif | |
135 | } | |
136 | ||
137 | bool | |
138 | c_isdigit (int c) | |
139 | { | |
140 | #if C_CTYPE_CONSECUTIVE_DIGITS | |
141 | return (c >= '0' && c <= '9'); | |
142 | #else | |
143 | switch (c) | |
144 | { | |
145 | case '0': case '1': case '2': case '3': case '4': case '5': | |
146 | case '6': case '7': case '8': case '9': | |
147 | return 1; | |
148 | default: | |
149 | return 0; | |
150 | } | |
151 | #endif | |
152 | } | |
153 | ||
154 | bool | |
155 | c_islower (int c) | |
156 | { | |
157 | #if C_CTYPE_CONSECUTIVE_LOWERCASE | |
158 | return (c >= 'a' && c <= 'z'); | |
159 | #else | |
160 | switch (c) | |
161 | { | |
162 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
163 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
164 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
165 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
166 | case 'y': case 'z': | |
167 | return 1; | |
168 | default: | |
169 | return 0; | |
170 | } | |
171 | #endif | |
172 | } | |
173 | ||
174 | bool | |
175 | c_isgraph (int c) | |
176 | { | |
177 | #if C_CTYPE_ASCII | |
178 | return (c >= '!' && c <= '~'); | |
179 | #else | |
180 | switch (c) | |
181 | { | |
182 | case '!': case '"': case '#': case '$': case '%': case '&': | |
183 | case '\'': case '(': case ')': case '*': case '+': case ',': | |
184 | case '-': case '.': case '/': | |
185 | case '0': case '1': case '2': case '3': case '4': case '5': | |
186 | case '6': case '7': case '8': case '9': | |
187 | case ':': case ';': case '<': case '=': case '>': case '?': | |
188 | case '@': | |
189 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
190 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
191 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
192 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
193 | case 'Y': case 'Z': | |
194 | case '[': case '\\': case ']': case '^': case '_': case '`': | |
195 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
196 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
197 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
198 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
199 | case 'y': case 'z': | |
200 | case '{': case '|': case '}': case '~': | |
201 | return 1; | |
202 | default: | |
203 | return 0; | |
204 | } | |
205 | #endif | |
206 | } | |
207 | ||
208 | bool | |
209 | c_isprint (int c) | |
210 | { | |
211 | #if C_CTYPE_ASCII | |
212 | return (c >= ' ' && c <= '~'); | |
213 | #else | |
214 | switch (c) | |
215 | { | |
216 | case ' ': case '!': case '"': case '#': case '$': case '%': | |
217 | case '&': case '\'': case '(': case ')': case '*': case '+': | |
218 | case ',': case '-': case '.': case '/': | |
219 | case '0': case '1': case '2': case '3': case '4': case '5': | |
220 | case '6': case '7': case '8': case '9': | |
221 | case ':': case ';': case '<': case '=': case '>': case '?': | |
222 | case '@': | |
223 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
224 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
225 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
226 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
227 | case 'Y': case 'Z': | |
228 | case '[': case '\\': case ']': case '^': case '_': case '`': | |
229 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
230 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': | |
231 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': | |
232 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': | |
233 | case 'y': case 'z': | |
234 | case '{': case '|': case '}': case '~': | |
235 | return 1; | |
236 | default: | |
237 | return 0; | |
238 | } | |
239 | #endif | |
240 | } | |
241 | ||
242 | bool | |
243 | c_ispunct (int c) | |
244 | { | |
245 | #if C_CTYPE_ASCII | |
246 | return ((c >= '!' && c <= '~') | |
247 | && !((c >= '0' && c <= '9') | |
248 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'))); | |
249 | #else | |
250 | switch (c) | |
251 | { | |
252 | case '!': case '"': case '#': case '$': case '%': case '&': | |
253 | case '\'': case '(': case ')': case '*': case '+': case ',': | |
254 | case '-': case '.': case '/': | |
255 | case ':': case ';': case '<': case '=': case '>': case '?': | |
256 | case '@': | |
257 | case '[': case '\\': case ']': case '^': case '_': case '`': | |
258 | case '{': case '|': case '}': case '~': | |
259 | return 1; | |
260 | default: | |
261 | return 0; | |
262 | } | |
263 | #endif | |
264 | } | |
265 | ||
266 | bool | |
267 | c_isspace (int c) | |
268 | { | |
269 | return (c == ' ' || c == '\t' | |
270 | || c == '\n' || c == '\v' || c == '\f' || c == '\r'); | |
271 | } | |
272 | ||
273 | bool | |
274 | c_isupper (int c) | |
275 | { | |
276 | #if C_CTYPE_CONSECUTIVE_UPPERCASE | |
277 | return (c >= 'A' && c <= 'Z'); | |
278 | #else | |
279 | switch (c) | |
280 | { | |
281 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
282 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': | |
283 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': | |
284 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': | |
285 | case 'Y': case 'Z': | |
286 | return 1; | |
287 | default: | |
288 | return 0; | |
289 | } | |
290 | #endif | |
291 | } | |
292 | ||
293 | bool | |
294 | c_isxdigit (int c) | |
295 | { | |
296 | #if C_CTYPE_CONSECUTIVE_DIGITS \ | |
297 | && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE | |
298 | #if C_CTYPE_ASCII | |
299 | return ((c >= '0' && c <= '9') | |
300 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'F')); | |
301 | #else | |
302 | return ((c >= '0' && c <= '9') | |
303 | || (c >= 'A' && c <= 'F') | |
304 | || (c >= 'a' && c <= 'f')); | |
305 | #endif | |
306 | #else | |
307 | switch (c) | |
308 | { | |
309 | case '0': case '1': case '2': case '3': case '4': case '5': | |
310 | case '6': case '7': case '8': case '9': | |
311 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
312 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
313 | return 1; | |
314 | default: | |
315 | return 0; | |
316 | } | |
317 | #endif | |
318 | } | |
319 | ||
320 | int | |
321 | c_tolower (int c) | |
322 | { | |
323 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE | |
324 | return (c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c); | |
325 | #else | |
326 | switch (c) | |
327 | { | |
328 | case 'A': return 'a'; | |
329 | case 'B': return 'b'; | |
330 | case 'C': return 'c'; | |
331 | case 'D': return 'd'; | |
332 | case 'E': return 'e'; | |
333 | case 'F': return 'f'; | |
334 | case 'G': return 'g'; | |
335 | case 'H': return 'h'; | |
336 | case 'I': return 'i'; | |
337 | case 'J': return 'j'; | |
338 | case 'K': return 'k'; | |
339 | case 'L': return 'l'; | |
340 | case 'M': return 'm'; | |
341 | case 'N': return 'n'; | |
342 | case 'O': return 'o'; | |
343 | case 'P': return 'p'; | |
344 | case 'Q': return 'q'; | |
345 | case 'R': return 'r'; | |
346 | case 'S': return 's'; | |
347 | case 'T': return 't'; | |
348 | case 'U': return 'u'; | |
349 | case 'V': return 'v'; | |
350 | case 'W': return 'w'; | |
351 | case 'X': return 'x'; | |
352 | case 'Y': return 'y'; | |
353 | case 'Z': return 'z'; | |
354 | default: return c; | |
355 | } | |
356 | #endif | |
357 | } | |
358 | ||
359 | int | |
360 | c_toupper (int c) | |
361 | { | |
362 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE | |
363 | return (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c); | |
364 | #else | |
365 | switch (c) | |
366 | { | |
367 | case 'a': return 'A'; | |
368 | case 'b': return 'B'; | |
369 | case 'c': return 'C'; | |
370 | case 'd': return 'D'; | |
371 | case 'e': return 'E'; | |
372 | case 'f': return 'F'; | |
373 | case 'g': return 'G'; | |
374 | case 'h': return 'H'; | |
375 | case 'i': return 'I'; | |
376 | case 'j': return 'J'; | |
377 | case 'k': return 'K'; | |
378 | case 'l': return 'L'; | |
379 | case 'm': return 'M'; | |
380 | case 'n': return 'N'; | |
381 | case 'o': return 'O'; | |
382 | case 'p': return 'P'; | |
383 | case 'q': return 'Q'; | |
384 | case 'r': return 'R'; | |
385 | case 's': return 'S'; | |
386 | case 't': return 'T'; | |
387 | case 'u': return 'U'; | |
388 | case 'v': return 'V'; | |
389 | case 'w': return 'W'; | |
390 | case 'x': return 'X'; | |
391 | case 'y': return 'Y'; | |
392 | case 'z': return 'Z'; | |
393 | default: return c; | |
394 | } | |
395 | #endif | |
396 | } |