|
| 1 | +/* chardefs.h -- Character definitions for readline. */ |
| 2 | + |
| 3 | +/* Copyright (C) 1994-2021 Free Software Foundation, Inc. |
| 4 | +
|
| 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. |
| 7 | +
|
| 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 |
| 11 | + (at your option) any later version. |
| 12 | +
|
| 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 |
| 16 | + GNU General Public License for more details. |
| 17 | +
|
| 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 | +*/ |
| 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) |
| 29 | +# include <string.h> |
| 30 | +# endif /* HAVE_STRING_H */ |
| 31 | +# if defined (HAVE_STRINGS_H) |
| 32 | +# include <strings.h> |
| 33 | +# endif /* HAVE_STRINGS_H */ |
| 34 | +#else |
| 35 | +# include <string.h> |
| 36 | +#endif /* !HAVE_CONFIG_H */ |
| 37 | + |
| 38 | +#ifndef whitespace |
| 39 | +#define whitespace(c) (((c) == ' ') || ((c) == '\t')) |
| 40 | +#endif |
| 41 | + |
| 42 | +#ifdef CTRL |
| 43 | +# undef CTRL |
| 44 | +#endif |
| 45 | +#ifdef UNCTRL |
| 46 | +# undef UNCTRL |
| 47 | +#endif |
| 48 | + |
| 49 | +/* Some character stuff. */ |
| 50 | +#define control_character_threshold 0x020 /* Smaller than this is control. */ |
| 51 | +#define control_character_mask 0x1f /* 0x20 - 1 */ |
| 52 | +#define meta_character_threshold 0x07f /* Larger than this is Meta. */ |
| 53 | +#define control_character_bit 0x40 /* 0x000000, must be off. */ |
| 54 | +#define meta_character_bit 0x080 /* x0000000, must be on. */ |
| 55 | +#define largest_char 255 /* Largest character value. */ |
| 56 | + |
| 57 | +#define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0)) |
| 58 | +#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char) |
| 59 | + |
| 60 | +#define CTRL(c) ((c) & control_character_mask) |
| 61 | +#define META(c) ((c) | meta_character_bit) |
| 62 | + |
| 63 | +#define UNMETA(c) ((c) & (~meta_character_bit)) |
| 64 | +#define UNCTRL(c) _rl_to_upper(((c)|control_character_bit)) |
| 65 | + |
| 66 | +#ifndef UCHAR_MAX |
| 67 | +# define UCHAR_MAX 255 |
| 68 | +#endif |
| 69 | +#ifndef CHAR_MAX |
| 70 | +# define CHAR_MAX 127 |
| 71 | +#endif |
| 72 | + |
| 73 | +/* use this as a proxy for C89 */ |
| 74 | +#if defined (HAVE_STDLIB_H) && defined (HAVE_STRING_H) |
| 75 | +# define IN_CTYPE_DOMAIN(c) 1 |
| 76 | +# define NON_NEGATIVE(c) 1 |
| 77 | +#else |
| 78 | +# define IN_CTYPE_DOMAIN(c) ((c) >= 0 && (c) <= CHAR_MAX) |
| 79 | +# define NON_NEGATIVE(c) ((unsigned char)(c) == (c)) |
| 80 | +#endif |
| 81 | + |
| 82 | +#if !defined (isxdigit) && !defined (HAVE_ISXDIGIT) && !defined (__cplusplus) |
| 83 | +# define isxdigit(c) (isdigit((unsigned char)(c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F')) |
| 84 | +#endif |
| 85 | + |
| 86 | +/* Some systems define these; we want our definitions. */ |
| 87 | +#undef ISPRINT |
| 88 | + |
| 89 | +/* Beware: these only work with single-byte ASCII characters. */ |
| 90 | + |
| 91 | +#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum ((unsigned char)c)) |
| 92 | +#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha ((unsigned char)c)) |
| 93 | +#define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit ((unsigned char)c)) |
| 94 | +#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower ((unsigned char)c)) |
| 95 | +#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint ((unsigned char)c)) |
| 96 | +#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper ((unsigned char)c)) |
| 97 | +#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit ((unsigned char)c)) |
| 98 | + |
| 99 | +#define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c)) |
| 100 | +#define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c)) |
| 101 | +#define _rl_digit_p(c) ((c) >= '0' && (c) <= '9') |
| 102 | + |
| 103 | +#define _rl_alphabetic_p(c) (NON_NEGATIVE(c) && ISALNUM(c)) |
| 104 | +#define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c)) |
| 105 | + |
| 106 | +#ifndef _rl_to_upper |
| 107 | +# define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)(c)) : (c)) |
| 108 | +# define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)(c)) : (c)) |
| 109 | +#endif |
| 110 | + |
| 111 | +#ifndef _rl_digit_value |
| 112 | +# define _rl_digit_value(x) ((x) - '0') |
| 113 | +#endif |
| 114 | + |
| 115 | +#ifndef _rl_isident |
| 116 | +# define _rl_isident(c) (ISALNUM(c) || (c) == '_') |
| 117 | +#endif |
| 118 | + |
| 119 | +#ifndef ISOCTAL |
| 120 | +# define ISOCTAL(c) ((c) >= '0' && (c) <= '7') |
| 121 | +#endif |
| 122 | +#define OCTVALUE(c) ((c) - '0') |
| 123 | + |
| 124 | +#define HEXVALUE(c) \ |
| 125 | + (((c) >= 'a' && (c) <= 'f') \ |
| 126 | + ? (c)-'a'+10 \ |
| 127 | + : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0') |
| 128 | + |
| 129 | +#ifndef NEWLINE |
| 130 | +#define NEWLINE '\n' |
| 131 | +#endif |
| 132 | + |
| 133 | +#ifndef RETURN |
| 134 | +#define RETURN CTRL('M') |
| 135 | +#endif |
| 136 | + |
| 137 | +#ifndef RUBOUT |
| 138 | +#define RUBOUT 0x7f |
| 139 | +#endif |
| 140 | + |
| 141 | +#ifndef TAB |
| 142 | +#define TAB '\t' |
| 143 | +#endif |
| 144 | + |
| 145 | +#ifdef ABORT_CHAR |
| 146 | +#undef ABORT_CHAR |
| 147 | +#endif |
| 148 | +#define ABORT_CHAR CTRL('G') |
| 149 | + |
| 150 | +#ifdef PAGE |
| 151 | +#undef PAGE |
| 152 | +#endif |
| 153 | +#define PAGE CTRL('L') |
| 154 | + |
| 155 | +#ifdef SPACE |
| 156 | +#undef SPACE |
| 157 | +#endif |
| 158 | +#define SPACE ' ' /* XXX - was 0x20 */ |
| 159 | + |
| 160 | +#ifdef ESC |
| 161 | +#undef ESC |
| 162 | +#endif |
| 163 | +#define ESC CTRL('[') |
| 164 | + |
| 165 | +#endif /* _CHARDEFS_H_ */ |
0 commit comments