/* chardefs.h -- Character definitions for readline. */ #ifndef _CHARDEFS_ #define _CHARDEFS_ #include <ctype.h> #ifndef savestring #define savestring(X) _rl_savestring(X) extern char * _rl_savestring (); #endif #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 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 META_CHAR(c) ((c) > meta_character_threshold && (c) <= largest_char) #define CTRL(c) ((c) & (~control_character_bit)) #define META(c) ((c) | meta_character_bit) #define UNMETA(c) ((c) & (~meta_character_bit)) #define UNCTRL(c) to_upper(((c)|control_character_bit)) #define lowercase_p(c) (((c) > ('a' - 1) && (c) < ('z' + 1))) #define uppercase_p(c) (((c) > ('A' - 1) && (c) < ('Z' + 1))) #define pure_alphabetic(c) (lowercase_p(c) || uppercase_p(c)) #ifndef to_upper #define to_upper(c) (lowercase_p(c) ? ((c) - 32) : (c)) #define to_lower(c) (uppercase_p(c) ? ((c) + 32) : (c)) #endif #define CTRL_P(c) ((c) < control_character_threshold) #define META_P(c) ((c) > meta_character_threshold) #ifndef NEWLINE #define NEWLINE '\n' #endif #ifndef RETURN #define RETURN CTRL('M') #endif #ifndef RUBOUT #define RUBOUT 0x07f #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 0x020 #ifdef ESC #undef ESC #endif #define ESC CTRL('[') #endif /* _CHARDEFS_ */