1/* chardefs.h -- Character definitions for readline. */
2
3/* Copyright (C) 1994 Free Software Foundation, Inc.
4
5 This file is part of the GNU Readline Library, a library for
6 reading lines of text with interactive input and history editing.
7
8 The GNU Readline Library is free software; you can redistribute it
9 and/or modify it under the terms of the GNU General Public License
10 as published by the Free Software Foundation; either version 2, or
11 (at your option) any later version.
12
13 The GNU Readline Library is distributed in the hope that it will be
14 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 The GNU General Public License is often shipped with GNU software, and
19 is generally kept in a file called COPYING or LICENSE. If you do not
20 have a copy of the license, write to the Free Software Foundation,
21 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
22
23#ifndef _CHARDEFS_H_
24#define _CHARDEFS_H_
25
26#include <ctype.h>
27
28#if defined (HAVE_CONFIG_H)
29# if defined (HAVE_STRING_H)
30# if ! defined (STDC_HEADERS) && defined (HAVE_MEMORY_H)
31# include <memory.h>
32# endif
33# include <string.h>
34# endif /* HAVE_STRING_H */
35# if defined (HAVE_STRINGS_H)
36# include <strings.h>
37# endif /* HAVE_STRINGS_H */
38#else
39# include <string.h>
40#endif /* !HAVE_CONFIG_H */
41
42#ifndef whitespace
43#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
44#endif
45
46#ifdef CTRL
47# undef CTRL
48#endif
49#ifdef UNCTRL
50# undef UNCTRL
51#endif
52
53/* Some character stuff. */
54#define control_character_threshold 0x020 /* Smaller than this is control. */
55#define control_character_mask 0x1f /* 0x20 - 1 */
56#define meta_character_threshold 0x07f /* Larger than this is Meta. */
57#define control_character_bit 0x40 /* 0x000000, must be off. */
58#define meta_character_bit 0x080 /* x0000000, must be on. */
59#define largest_char 255 /* Largest character value. */
60
61#define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0))
62#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
63
64#define CTRL(c) ((c) & control_character_mask)
65#define META(c) ((c) | meta_character_bit)
66
67#define UNMETA(c) ((c) & (~meta_character_bit))
68#define UNCTRL(c) _rl_to_upper(((c)|control_character_bit))
69
70#if defined STDC_HEADERS || (!defined (isascii) && !defined (HAVE_ISASCII))
71# define IN_CTYPE_DOMAIN(c) 1
72#else
73# define IN_CTYPE_DOMAIN(c) isascii(c)
74#endif
75
76#if !defined (isxdigit) && !defined (HAVE_ISXDIGIT)
77# define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
78#endif
79
80#if defined (CTYPE_NON_ASCII)
81# define NON_NEGATIVE(c) 1
82#else
83# define NON_NEGATIVE(c) ((unsigned char)(c) == (c))
84#endif
85
86/* Some systems define these; we want our definitions. */
87#undef ISPRINT
88
89#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
90#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
91#define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
92#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
93#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
94#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
95#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
96
97#define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c))
98#define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c))
99#define _rl_digit_p(c) ((c) >= '0' && (c) <= '9')
100
101#define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c))
102#define ALPHABETIC(c) (NON_NEGATIVE(c) && ISALNUM(c))
103
104#ifndef _rl_to_upper
105# define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)c) : (c))
106# define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)c) : (c))
107#endif
108
109#ifndef _rl_digit_value
110# define _rl_digit_value(x) ((x) - '0')
111#endif
112
113#ifndef _rl_isident
114# define _rl_isident(c) (ISALNUM(c) || (c) == '_')
115#endif
116
117#ifndef ISOCTAL
118# define ISOCTAL(c) ((c) >= '0' && (c) <= '7')
119#endif
120#define OCTVALUE(c) ((c) - '0')
121
122#define HEXVALUE(c) \
123 (((c) >= 'a' && (c) <= 'f') \
124 ? (c)-'a'+10 \
125 : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0')
126
127#ifndef NEWLINE
128#define NEWLINE '\n'
129#endif
130
131#ifndef RETURN
132#define RETURN CTRL('M')
133#endif
134
135#ifndef RUBOUT
136#define RUBOUT 0x7f
137#endif
138
139#ifndef TAB
140#define TAB '\t'
141#endif
142
143#ifdef ABORT_CHAR
144#undef ABORT_CHAR
145#endif
146#define ABORT_CHAR CTRL('G')
147
148#ifdef PAGE
149#undef PAGE
150#endif
151#define PAGE CTRL('L')
152
153#ifdef SPACE
154#undef SPACE
155#endif
156#define SPACE ' ' /* XXX - was 0x20 */
157
158#ifdef ESC
159#undef ESC
160#endif
161#define ESC CTRL('[')
162
163#endif /* _CHARDEFS_H_ */
2
3/* Copyright (C) 1994 Free Software Foundation, Inc.
4
5 This file is part of the GNU Readline Library, a library for
6 reading lines of text with interactive input and history editing.
7
8 The GNU Readline Library is free software; you can redistribute it
9 and/or modify it under the terms of the GNU General Public License
10 as published by the Free Software Foundation; either version 2, or
11 (at your option) any later version.
12
13 The GNU Readline Library is distributed in the hope that it will be
14 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 The GNU General Public License is often shipped with GNU software, and
19 is generally kept in a file called COPYING or LICENSE. If you do not
20 have a copy of the license, write to the Free Software Foundation,
21 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
22
23#ifndef _CHARDEFS_H_
24#define _CHARDEFS_H_
25
26#include <ctype.h>
27
28#if defined (HAVE_CONFIG_H)
29# if defined (HAVE_STRING_H)
30# if ! defined (STDC_HEADERS) && defined (HAVE_MEMORY_H)
31# include <memory.h>
32# endif
33# include <string.h>
34# endif /* HAVE_STRING_H */
35# if defined (HAVE_STRINGS_H)
36# include <strings.h>
37# endif /* HAVE_STRINGS_H */
38#else
39# include <string.h>
40#endif /* !HAVE_CONFIG_H */
41
42#ifndef whitespace
43#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
44#endif
45
46#ifdef CTRL
47# undef CTRL
48#endif
49#ifdef UNCTRL
50# undef UNCTRL
51#endif
52
53/* Some character stuff. */
54#define control_character_threshold 0x020 /* Smaller than this is control. */
55#define control_character_mask 0x1f /* 0x20 - 1 */
56#define meta_character_threshold 0x07f /* Larger than this is Meta. */
57#define control_character_bit 0x40 /* 0x000000, must be off. */
58#define meta_character_bit 0x080 /* x0000000, must be on. */
59#define largest_char 255 /* Largest character value. */
60
61#define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0))
62#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
63
64#define CTRL(c) ((c) & control_character_mask)
65#define META(c) ((c) | meta_character_bit)
66
67#define UNMETA(c) ((c) & (~meta_character_bit))
68#define UNCTRL(c) _rl_to_upper(((c)|control_character_bit))
69
70#if defined STDC_HEADERS || (!defined (isascii) && !defined (HAVE_ISASCII))
71# define IN_CTYPE_DOMAIN(c) 1
72#else
73# define IN_CTYPE_DOMAIN(c) isascii(c)
74#endif
75
76#if !defined (isxdigit) && !defined (HAVE_ISXDIGIT)
77# define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
78#endif
79
80#if defined (CTYPE_NON_ASCII)
81# define NON_NEGATIVE(c) 1
82#else
83# define NON_NEGATIVE(c) ((unsigned char)(c) == (c))
84#endif
85
86/* Some systems define these; we want our definitions. */
87#undef ISPRINT
88
89#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
90#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
91#define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
92#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
93#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
94#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
95#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
96
97#define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c))
98#define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c))
99#define _rl_digit_p(c) ((c) >= '0' && (c) <= '9')
100
101#define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c))
102#define ALPHABETIC(c) (NON_NEGATIVE(c) && ISALNUM(c))
103
104#ifndef _rl_to_upper
105# define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)c) : (c))
106# define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)c) : (c))
107#endif
108
109#ifndef _rl_digit_value
110# define _rl_digit_value(x) ((x) - '0')
111#endif
112
113#ifndef _rl_isident
114# define _rl_isident(c) (ISALNUM(c) || (c) == '_')
115#endif
116
117#ifndef ISOCTAL
118# define ISOCTAL(c) ((c) >= '0' && (c) <= '7')
119#endif
120#define OCTVALUE(c) ((c) - '0')
121
122#define HEXVALUE(c) \
123 (((c) >= 'a' && (c) <= 'f') \
124 ? (c)-'a'+10 \
125 : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0')
126
127#ifndef NEWLINE
128#define NEWLINE '\n'
129#endif
130
131#ifndef RETURN
132#define RETURN CTRL('M')
133#endif
134
135#ifndef RUBOUT
136#define RUBOUT 0x7f
137#endif
138
139#ifndef TAB
140#define TAB '\t'
141#endif
142
143#ifdef ABORT_CHAR
144#undef ABORT_CHAR
145#endif
146#define ABORT_CHAR CTRL('G')
147
148#ifdef PAGE
149#undef PAGE
150#endif
151#define PAGE CTRL('L')
152
153#ifdef SPACE
154#undef SPACE
155#endif
156#define SPACE ' ' /* XXX - was 0x20 */
157
158#ifdef ESC
159#undef ESC
160#endif
161#define ESC CTRL('[')
162
163#endif /* _CHARDEFS_H_ */