4BSD/usr/src/lib/libcurses/cr_ex.h
/* Copyright (c) 1979 Regents of the University of California */
/*
* Character constants and bits
*
* The editor uses the QUOTE bit as a flag to pass on with characters
* e.g. to the putchar routine. The editor never uses a simple char variable.
* Only arrays of and pointers to characters are used and parameters and
* registers are never declared character.
*/
# define QUOTE 0200
# define TRIM 0177
# define CTRL(c) ('c' & 037)
# define NL CTRL(j)
# define CR CTRL(m)
# define DELETE 0177 /* See also ATTN, QUIT in ex_tune.h */
# define ESCAPE 033