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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM_CHARS_H |
4 | #define SCM_CHARS_H | |
5 | ||
904a78f1 | 6 | /* Copyright (C) 1995,1996,2000,2001,2004, 2006, 2008, 2009 Free Software Foundation, Inc. |
0527e687 | 7 | * |
73be1d9e | 8 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
9 | * modify it under the terms of the GNU Lesser General Public License |
10 | * as published by the Free Software Foundation; either version 3 of | |
11 | * the License, or (at your option) any later version. | |
0527e687 | 12 | * |
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13 | * This library is distributed in the hope that it will be useful, but |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * Lesser General Public License for more details. | |
0527e687 | 17 | * |
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18 | * You should have received a copy of the GNU Lesser General Public |
19 | * License along with this library; if not, write to the Free Software | |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
21 | * 02110-1301 USA | |
73be1d9e | 22 | */ |
0527e687 | 23 | |
0f2d19dd JB |
24 | \f |
25 | ||
b4309c3c | 26 | #include "libguile/__scm.h" |
a876e7dc | 27 | #include "libguile/numbers.h" |
0f2d19dd JB |
28 | |
29 | \f | |
30 | /* Immediate Characters | |
31 | */ | |
7866a09b | 32 | #define SCM_CHARP(x) (SCM_ITAG8(x) == scm_tc8_char) |
904a78f1 MG |
33 | #define SCM_CHAR(x) ((scm_t_wchar)SCM_ITAG8_DATA(x)) |
34 | ||
8ef69629 MG |
35 | /* SCM_MAKE_CHAR maps signed chars (-128 to 127) and unsigned chars (0 |
36 | to 255) to Latin-1 codepoints (0 to 255) while allowing higher | |
37 | codepoints (256 to 1114111) to pass through unchanged. | |
38 | ||
39 | This macro evaluates x twice, which may lead to side effects if not | |
40 | used properly. */ | |
41 | #define SCM_MAKE_CHAR(x) \ | |
42 | ((x) <= 1 \ | |
43 | ? SCM_MAKE_ITAG8 ((scm_t_bits) (unsigned char) (x), scm_tc8_char) \ | |
4847dc17 | 44 | : SCM_MAKE_ITAG8 ((scm_t_bits) (x), scm_tc8_char)) |
904a78f1 MG |
45 | |
46 | #define SCM_CODEPOINT_MAX (0x10ffff) | |
47 | #define SCM_IS_UNICODE_CHAR(c) \ | |
f7118e35 MG |
48 | ((scm_t_wchar) (c) <= 0xd7ff \ |
49 | || ((scm_t_wchar) (c) >= 0xe000 && (scm_t_wchar) (c) <= SCM_CODEPOINT_MAX)) | |
7866a09b | 50 | |
0f2d19dd JB |
51 | \f |
52 | ||
33b001fd MV |
53 | SCM_API SCM scm_char_p (SCM x); |
54 | SCM_API SCM scm_char_eq_p (SCM x, SCM y); | |
55 | SCM_API SCM scm_char_less_p (SCM x, SCM y); | |
56 | SCM_API SCM scm_char_leq_p (SCM x, SCM y); | |
57 | SCM_API SCM scm_char_gr_p (SCM x, SCM y); | |
58 | SCM_API SCM scm_char_geq_p (SCM x, SCM y); | |
59 | SCM_API SCM scm_char_ci_eq_p (SCM x, SCM y); | |
60 | SCM_API SCM scm_char_ci_less_p (SCM x, SCM y); | |
61 | SCM_API SCM scm_char_ci_leq_p (SCM x, SCM y); | |
62 | SCM_API SCM scm_char_ci_gr_p (SCM x, SCM y); | |
63 | SCM_API SCM scm_char_ci_geq_p (SCM x, SCM y); | |
64 | SCM_API SCM scm_char_alphabetic_p (SCM chr); | |
65 | SCM_API SCM scm_char_numeric_p (SCM chr); | |
66 | SCM_API SCM scm_char_whitespace_p (SCM chr); | |
67 | SCM_API SCM scm_char_upper_case_p (SCM chr); | |
68 | SCM_API SCM scm_char_lower_case_p (SCM chr); | |
69 | SCM_API SCM scm_char_is_both_p (SCM chr); | |
70 | SCM_API SCM scm_char_to_integer (SCM chr); | |
71 | SCM_API SCM scm_integer_to_char (SCM n); | |
72 | SCM_API SCM scm_char_upcase (SCM chr); | |
73 | SCM_API SCM scm_char_downcase (SCM chr); | |
904a78f1 MG |
74 | SCM_API scm_t_wchar scm_c_upcase (scm_t_wchar c); |
75 | SCM_API scm_t_wchar scm_c_downcase (scm_t_wchar c); | |
76 | SCM_INTERNAL const char *scm_i_charname (SCM chr); | |
77332b21 MG |
77 | SCM_INTERNAL SCM scm_i_charname_to_char (const char *charname, |
78 | size_t charname_len); | |
102dbb6f | 79 | SCM_INTERNAL void scm_init_chars (void); |
0f2d19dd | 80 | |
0527e687 | 81 | #endif /* SCM_CHARS_H */ |
89e00824 ML |
82 | |
83 | /* | |
84 | Local Variables: | |
85 | c-file-style: "gnu" | |
86 | End: | |
87 | */ |