5836a818ec
This reverts commitb558ff043d. This reverts commit4a11f20659. The initial import commit failed to retain local changes made to readline's configure.in (and the commit message erroneously stated that there were no local changes that needed to be reapplied). Also the import caused a couple of build errors and a scattering of testsuite regressions throughout many arches. It's probably better to start over with this import, hopefully more carefully next time.
164 lines
4.4 KiB
C
164 lines
4.4 KiB
C
/* chardefs.h -- Character definitions for readline. */
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/* Copyright (C) 1994-2009 Free Software Foundation, Inc.
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This file is part of the GNU Readline Library (Readline), a library
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for reading lines of text with interactive input and history editing.
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Readline is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Readline is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Readline. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _CHARDEFS_H_
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#define _CHARDEFS_H_
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#include <ctype.h>
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#if defined (HAVE_CONFIG_H)
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# if defined (HAVE_STRING_H)
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# if ! defined (STDC_HEADERS) && defined (HAVE_MEMORY_H)
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# include <memory.h>
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# endif
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# include <string.h>
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# endif /* HAVE_STRING_H */
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# if defined (HAVE_STRINGS_H)
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# include <strings.h>
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# endif /* HAVE_STRINGS_H */
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#else
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# include <string.h>
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#endif /* !HAVE_CONFIG_H */
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#ifndef whitespace
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#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
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#endif
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#ifdef CTRL
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# undef CTRL
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#endif
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#ifdef UNCTRL
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# undef UNCTRL
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#endif
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/* Some character stuff. */
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#define control_character_threshold 0x020 /* Smaller than this is control. */
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#define control_character_mask 0x1f /* 0x20 - 1 */
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#define meta_character_threshold 0x07f /* Larger than this is Meta. */
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#define control_character_bit 0x40 /* 0x000000, must be off. */
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#define meta_character_bit 0x080 /* x0000000, must be on. */
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#define largest_char 255 /* Largest character value. */
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#define CTRL_CHAR(c) ((c) < control_character_threshold && (((c) & 0x80) == 0))
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#define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char)
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#define CTRL(c) ((c) & control_character_mask)
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#define META(c) ((c) | meta_character_bit)
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#define UNMETA(c) ((c) & (~meta_character_bit))
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#define UNCTRL(c) _rl_to_upper(((c)|control_character_bit))
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#if defined STDC_HEADERS || (!defined (isascii) && !defined (HAVE_ISASCII))
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# define IN_CTYPE_DOMAIN(c) 1
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#else
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# define IN_CTYPE_DOMAIN(c) isascii(c)
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#endif
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#if !defined (isxdigit) && !defined (HAVE_ISXDIGIT)
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# define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
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#endif
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#if defined (CTYPE_NON_ASCII)
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# define NON_NEGATIVE(c) 1
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#else
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# define NON_NEGATIVE(c) ((unsigned char)(c) == (c))
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#endif
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/* Some systems define these; we want our definitions. */
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#undef ISPRINT
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/* Beware: these only work with single-byte ASCII characters. */
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#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
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#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
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#define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
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#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
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#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
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#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
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#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
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#define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c))
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#define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c))
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#define _rl_digit_p(c) ((c) >= '0' && (c) <= '9')
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#define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c))
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#define ALPHABETIC(c) (NON_NEGATIVE(c) && ISALNUM(c))
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#ifndef _rl_to_upper
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# define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)c) : (c))
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# define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)c) : (c))
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#endif
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#ifndef _rl_digit_value
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# define _rl_digit_value(x) ((x) - '0')
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#endif
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#ifndef _rl_isident
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# define _rl_isident(c) (ISALNUM(c) || (c) == '_')
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#endif
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#ifndef ISOCTAL
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# define ISOCTAL(c) ((c) >= '0' && (c) <= '7')
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#endif
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#define OCTVALUE(c) ((c) - '0')
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#define HEXVALUE(c) \
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(((c) >= 'a' && (c) <= 'f') \
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? (c)-'a'+10 \
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: (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0')
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#ifndef NEWLINE
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#define NEWLINE '\n'
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#endif
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#ifndef RETURN
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#define RETURN CTRL('M')
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#endif
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#ifndef RUBOUT
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#define RUBOUT 0x7f
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#endif
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#ifndef TAB
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#define TAB '\t'
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#endif
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#ifdef ABORT_CHAR
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#undef ABORT_CHAR
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#endif
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#define ABORT_CHAR CTRL('G')
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#ifdef PAGE
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#undef PAGE
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#endif
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#define PAGE CTRL('L')
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#ifdef SPACE
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#undef SPACE
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#endif
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#define SPACE ' ' /* XXX - was 0x20 */
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#ifdef ESC
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#undef ESC
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#endif
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#define ESC CTRL('[')
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#endif /* _CHARDEFS_H_ */
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