View file File name : chardefs.h Content :/* chardefs.h -- Character definitions for readline. */ /* Copyright (C) 1994-2015 Free Software Foundation, Inc. This file is part of the GNU Readline Library (Readline), a library for reading lines of text with interactive input and history editing. Readline 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 3 of the License, or (at your option) any later version. Readline 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. You should have received a copy of the GNU General Public License along with Readline. If not, see <http://www.gnu.org/licenses/>. */ #ifndef _CHARDEFS_H_ #define _CHARDEFS_H_ #include <ctype.h> #include <string.h> #ifndef whitespace #define whitespace(c) (((c) == ' ') || ((c) == '\t')) #endif #ifdef CTRL # undef CTRL #endif #ifdef UNCTRL # undef UNCTRL #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) & 0x80) == 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)) #if defined STDC_HEADERS || (!defined (isascii) && !defined (HAVE_ISASCII)) # define IN_CTYPE_DOMAIN(c) 1 #else # define IN_CTYPE_DOMAIN(c) isascii(c) #endif #if !defined (isxdigit) && !defined (HAVE_ISXDIGIT) && !defined (__cplusplus) # define isxdigit(c) (isdigit((unsigned char)(c)) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F')) #endif #if defined (CTYPE_NON_ASCII) # define NON_NEGATIVE(c) 1 #else # define NON_NEGATIVE(c) ((unsigned char)(c) == (c)) #endif /* Some systems define these; we want our definitions. */ #undef ISPRINT /* Beware: these only work with single-byte ASCII characters. */ #define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum ((unsigned char)c)) #define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha ((unsigned char)c)) #define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit ((unsigned char)c)) #define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower ((unsigned char)c)) #define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint ((unsigned char)c)) #define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper ((unsigned char)c)) #define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit ((unsigned char)c)) #define _rl_lowercase_p(c) (NON_NEGATIVE(c) && ISLOWER(c)) #define _rl_uppercase_p(c) (NON_NEGATIVE(c) && ISUPPER(c)) #define _rl_digit_p(c) ((c) >= '0' && (c) <= '9') #define _rl_pure_alphabetic(c) (NON_NEGATIVE(c) && ISALPHA(c)) #define ALPHABETIC(c) (NON_NEGATIVE(c) && ISALNUM(c)) #ifndef _rl_to_upper # define _rl_to_upper(c) (_rl_lowercase_p(c) ? toupper((unsigned char)c) : (c)) # define _rl_to_lower(c) (_rl_uppercase_p(c) ? tolower((unsigned char)c) : (c)) #endif #ifndef _rl_digit_value # define _rl_digit_value(x) ((x) - '0') #endif #ifndef _rl_isident # define _rl_isident(c) (ISALNUM(c) || (c) == '_') #endif #ifndef ISOCTAL # define ISOCTAL(c) ((c) >= '0' && (c) <= '7') #endif #define OCTVALUE(c) ((c) - '0') #define HEXVALUE(c) \ (((c) >= 'a' && (c) <= 'f') \ ? (c)-'a'+10 \ : (c) >= 'A' && (c) <= 'F' ? (c)-'A'+10 : (c)-'0') #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('[') #endif /* _CHARDEFS_H_ */