NAME¶
SP,
acs_map,
boolcodes,
boolfnames,
boolnames,
cur_term,
numcodes,
numfnames,
numnames,
strcodes,
strfnames,
strnames,
ttytype -
curses terminfo global variables
SYNOPSIS¶
#include <curses.h>
#include <term.h>
chtype acs_map[];
NCURSES_CONST char * const * boolcodes;
NCURSES_CONST char * const * boolfnames;
NCURSES_CONST char * const * boolnames;
TERMINAL * cur_term;
NCURSES_CONST char * const * numcodes;
NCURSES_CONST char * const * numfnames;
NCURSES_CONST char * const * numnames;
NCURSES_CONST char * const * strcodes;
NCURSES_CONST char * const * strfnames;
NCURSES_CONST char * const * strnames;
char ttytype[];
DESCRIPTION¶
This page summarizes variables provided by the
curses library's low-level
terminfo interface. A more complete description is given in the
curs_terminfo(3X) manual page.
Depending on the configuration, these may be actual variables, or macros (see
threads(3NCURSES)) which provide read-only access to
curses's
state. In either case, applications should treat them as read-only to avoid
confusing the library.
Alternate Character Set Mapping¶
After initializing the curses or terminfo interfaces, the
acs_map array
holds information used to translate cells with the
A_ALTCHARSET video
attribute into line-drawing characters.
The encoding of the information in this array has changed periodically.
Application developers need only know that it is used for the "ACS_"
constants in <curses.h>.
The comparable data for the wide-character library is a private variable.
Current Terminal Data¶
After initializing the curses or terminfo interfaces, the
cur_term
contains data describing the current terminal. This variable is also set as a
side-effect of
set_term(3X) and
delscreen(3X).
It is possible to save a value of
cur_term for subsequent use as a
parameter to
set_term, for switching between screens. Alternatively,
one can save the return value from
newterm or
setupterm to reuse
in
set_term.
Terminfo Names¶
The
tic(1) and
infocmp(1) programs use lookup tables for the long
and short names of terminfo capabilities, as well as the corresponding names
for termcap capabilities. These are available to other applications, though
the hash-tables are not available.
The long terminfo capability names use a "l" (ell) in their names:
boolfnames numfnames strfnames
These are the short names for terminfo capabilities: boolnames, numnames, and
strnames.
These are the corresponding names used for termcap descriptions: boolcodes,
numcodes, and strcodes.
Terminal Type¶
On initialization of the curses or terminfo interfaces,
setupterm copies
the terminal name to the array
ttytype.
NOTES¶
The low-level terminfo interface is initialized using
setupterm(3X). The
upper-level curses interface uses the low-level terminfo interface,
internally.
PORTABILITY¶
X/Open Curses does not describe any of these except for
cur_term. (The
inclusion of
cur_term appears to be an oversight, since other
comparable low-level information is omitted by X/Open).
Other implementations may have comparable variables. Some implementations
provide the variables in their libraries, but omit them from the header files.
SEE ALSO¶
ncurses(3NCURSES),
terminfo(3NCURSES),
threads(3NCURSES),
terminfo(3X),
terminfo(5).
