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d60d9f65 SS |
1 | /* chardefs.h -- Character definitions for readline. */ |
2 | ||
cc88a640 | 3 | /* Copyright (C) 1994-2009 Free Software Foundation, Inc. |
d60d9f65 | 4 | |
cc88a640 JK |
5 | This file is part of the GNU Readline Library (Readline), a library |
6 | for reading lines of text with interactive input and history editing. | |
d60d9f65 | 7 | |
cc88a640 JK |
8 | Readline is free software: you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
d60d9f65 SS |
11 | (at your option) any later version. |
12 | ||
cc88a640 JK |
13 | Readline is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
d60d9f65 SS |
16 | GNU General Public License for more details. |
17 | ||
cc88a640 JK |
18 | You should have received a copy of the GNU General Public License |
19 | along with Readline. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
d60d9f65 SS |
21 | |
22 | #ifndef _CHARDEFS_H_ | |
23 | #define _CHARDEFS_H_ | |
24 | ||
25 | #include <ctype.h> | |
26 | ||
27 | #if defined (HAVE_CONFIG_H) | |
28 | # if defined (HAVE_STRING_H) | |
9255ee31 EZ |
29 | # if ! defined (STDC_HEADERS) && defined (HAVE_MEMORY_H) |
30 | # include <memory.h> | |
31 | # endif | |
d60d9f65 | 32 | # include <string.h> |
d60d9f65 | 33 | # endif /* HAVE_STRING_H */ |
9255ee31 EZ |
34 | # if defined (HAVE_STRINGS_H) |
35 | # include <strings.h> | |
36 | # endif /* HAVE_STRINGS_H */ | |
d60d9f65 SS |
37 | #else |
38 | # include <string.h> | |
39 | #endif /* !HAVE_CONFIG_H */ | |
40 | ||
41 | #ifndef whitespace | |
42 | #define whitespace(c) (((c) == ' ') || ((c) == '\t')) | |
43 | #endif | |
44 | ||
45 | #ifdef CTRL | |
9255ee31 EZ |
46 | # undef CTRL |
47 | #endif | |
48 | #ifdef UNCTRL | |
49 | # undef UNCTRL | |
d60d9f65 SS |
50 | #endif |
51 | ||
52 | /* Some character stuff. */ | |
53 | #define control_character_threshold 0x020 /* Smaller than this is control. */ | |
54 | #define control_character_mask 0x1f /* 0x20 - 1 */ | |
55 | #define meta_character_threshold 0x07f /* Larger than this is Meta. */ | |
56 | #define control_character_bit 0x40 /* 0x000000, must be off. */ | |
57 | #define meta_character_bit 0x080 /* x0000000, must be on. */ | |
58 | #define largest_char 255 /* Largest character value. */ | |
59 | ||
9255ee31 | 60 | #define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0)) |
d60d9f65 SS |
61 | #define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char) |
62 | ||
63 | #define CTRL(c) ((c) & control_character_mask) | |
64 | #define META(c) ((c) | meta_character_bit) | |
65 | ||
66 | #define UNMETA(c) ((c) & (~meta_character_bit)) | |
67 | #define UNCTRL(c) _rl_to_upper(((c)|control_character_bit)) | |
68 | ||
9255ee31 EZ |
69 | #if defined STDC_HEADERS || (!defined (isascii) && !defined (HAVE_ISASCII)) |
70 | # define IN_CTYPE_DOMAIN(c) 1 | |
71 | #else | |
72 | # define IN_CTYPE_DOMAIN(c) isascii(c) | |
73 | #endif | |
74 | ||
5836a818 PP |
75 | #if !defined (isxdigit) && !defined (HAVE_ISXDIGIT) |
76 | # define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F')) | |
9255ee31 EZ |
77 | #endif |
78 | ||
5bdf8622 DJ |
79 | #if defined (CTYPE_NON_ASCII) |
80 | # define NON_NEGATIVE(c) 1 | |
81 | #else | |
82 | # define NON_NEGATIVE(c) ((unsigned char)(c) == (c)) | |
83 | #endif | |
9255ee31 EZ |
84 | |
85 | /* Some systems define these; we want our definitions. */ | |
86 | #undef ISPRINT | |
d60d9f65 | 87 | |
5bdf8622 DJ |
88 | /* Beware: these only work with single-byte ASCII characters. */ |
89 | ||
5836a818 PP |
90 | #define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c)) |
91 | #define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c)) | |
92 | #define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c)) | |
93 | #define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c)) | |
94 | #define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c)) | |
95 | #define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c)) | |
96 | #define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c)) | |
d60d9f65 | 97 | |
9255ee31 EZ |
98 | #define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c)) |
99 | #define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c)) | |
100 | #define _rl_digit_p(c) ((c) >= '0' && (c) <= '9') | |
d60d9f65 | 101 | |
9255ee31 EZ |
102 | #define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c)) |
103 | #define ALPHABETIC(c) (NON_NEGATIVE(c) && ISALNUM(c)) | |
d60d9f65 SS |
104 | |
105 | #ifndef _rl_to_upper | |
9255ee31 EZ |
106 | # define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)c) : (c)) |
107 | # define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)c) : (c)) | |
d60d9f65 SS |
108 | #endif |
109 | ||
110 | #ifndef _rl_digit_value | |
9255ee31 EZ |
111 | # define _rl_digit_value(x) ((x) - '0') |
112 | #endif | |
113 | ||
114 | #ifndef _rl_isident | |
115 | # define _rl_isident(c) (ISALNUM(c) || (c) == '_') | |
d60d9f65 SS |
116 | #endif |
117 | ||
9255ee31 EZ |
118 | #ifndef ISOCTAL |
119 | # define ISOCTAL(c) ((c) >= '0' && (c) <= '7') | |
120 | #endif | |
121 | #define OCTVALUE(c) ((c) - '0') | |
122 | ||
123 | #define HEXVALUE(c) \ | |
124 | (((c) >= 'a' && (c) <= 'f') \ | |
125 | ? (c)-'a'+10 \ | |
126 | : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0') | |
127 | ||
d60d9f65 SS |
128 | #ifndef NEWLINE |
129 | #define NEWLINE '\n' | |
130 | #endif | |
131 | ||
132 | #ifndef RETURN | |
133 | #define RETURN CTRL('M') | |
134 | #endif | |
135 | ||
136 | #ifndef RUBOUT | |
137 | #define RUBOUT 0x7f | |
138 | #endif | |
139 | ||
140 | #ifndef TAB | |
141 | #define TAB '\t' | |
142 | #endif | |
143 | ||
144 | #ifdef ABORT_CHAR | |
145 | #undef ABORT_CHAR | |
146 | #endif | |
147 | #define ABORT_CHAR CTRL('G') | |
148 | ||
149 | #ifdef PAGE | |
150 | #undef PAGE | |
151 | #endif | |
152 | #define PAGE CTRL('L') | |
153 | ||
154 | #ifdef SPACE | |
155 | #undef SPACE | |
156 | #endif | |
157 | #define SPACE ' ' /* XXX - was 0x20 */ | |
158 | ||
159 | #ifdef ESC | |
160 | #undef ESC | |
161 | #endif | |
162 | #define ESC CTRL('[') | |
163 | ||
d60d9f65 | 164 | #endif /* _CHARDEFS_H_ */ |