/* chardefs.h -- Character definitions for readline. */ /* Copyright (C) 1994 Free Software Foundation, Inc. This file is part of the GNU Readline Library, a library for reading lines of text with interactive input and history editing. The GNU Readline Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. The GNU Readline Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. The GNU General Public License is often shipped with GNU software, and is generally kept in a file called COPYING or LICENSE. If you do not have a copy of the license, write to the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ #ifndef _CHARDEFS_H_ #define _CHARDEFS_H_ #include <ctype.h> #if defined (HAVE_CONFIG_H) # if defined (HAVE_STRING_H) # include <string.h> # else # include <strings.h> # endif /* HAVE_STRING_H */ #else # include <string.h> #endif /* !HAVE_CONFIG_H */ #ifndef whitespace #define whitespace(c) (((c) == ' ') || ((c) == '\t')) #endif #ifdef CTRL #undef CTRL #endif /* Some character stuff. */ #define control_character_threshold 0x020 /* Smaller than this is control. */ #define control_character_mask 0x1f /* 0x20 - 1 */ #define meta_character_threshold 0x07f /* Larger than this is Meta. */ #define control_character_bit 0x40 /* 0x000000, must be off. */ #define meta_character_bit 0x080 /* x0000000, must be on. */ #define largest_char 255 /* Largest character value. */ #define CTRL_CHAR(c) ((c) < control_character_threshold && (c) >= 0) #define META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char) #define CTRL(c) ((c) & control_character_mask) #define META(c) ((c) | meta_character_bit) #define UNMETA(c) ((c) & (~meta_character_bit)) #define UNCTRL(c) _rl_to_upper(((c)|control_character_bit)) /* Old versions #define _rl_lowercase_p(c) (((c) > ('a' - 1) && (c) < ('z' + 1))) #define _rl_uppercase_p(c) (((c) > ('A' - 1) && (c) < ('Z' + 1))) #define _rl_digit_p(c) ((c) >= '0' && (c) <= '9') */ #define _rl_lowercase_p(c) (islower(c)) #define _rl_uppercase_p(c) (isupper(c)) #define _rl_digit_p(x) (isdigit (x)) #define _rl_pure_alphabetic(c) (_rl_lowercase_p(c) || _rl_uppercase_p(c)) #define ALPHABETIC(c) (_rl_lowercase_p(c) || _rl_uppercase_p(c) || _rl_digit_p(c)) /* Old versions # define _rl_to_upper(c) (_rl_lowercase_p(c) ? ((c) - 32) : (c)) # define _rl_to_lower(c) (_rl_uppercase_p(c) ? ((c) + 32) : (c)) */ #ifndef _rl_to_upper # define _rl_to_upper(c) (islower(c) ? toupper(c) : (c)) # define _rl_to_lower(c) (isupper(c) ? tolower(c) : (c)) #endif #ifndef _rl_digit_value #define _rl_digit_value(x) ((x) - '0') #endif #ifndef NEWLINE #define NEWLINE '\n' #endif #ifndef RETURN #define RETURN CTRL('M') #endif #ifndef RUBOUT #define RUBOUT 0x7f #endif #ifndef TAB #define TAB '\t' #endif #ifdef ABORT_CHAR #undef ABORT_CHAR #endif #define ABORT_CHAR CTRL('G') #ifdef PAGE #undef PAGE #endif #define PAGE CTRL('L') #ifdef SPACE #undef SPACE #endif #define SPACE ' ' /* XXX - was 0x20 */ #ifdef ESC #undef ESC #endif #define ESC CTRL('[') #ifndef ISOCTAL #define ISOCTAL(c) ((c) >= '0' && (c) <= '7') #endif #define OCTVALUE(c) ((c) - '0') #ifndef isxdigit # define isxdigit(c) (isdigit((c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F')) #endif #define HEXVALUE(c) \ (((c) >= 'a' && (c) <= 'f') \ ? (c)-'a'+10 \ : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0') #endif /* _CHARDEFS_H_ */