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   curs_terminfo.3x    ( 3 )

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История (History)

SVr2 introduced the terminfo feature. Its programming manual mentioned these low-level functions:

Function Description ──────────────────────────────────────────────────────────── fixterm restore tty to 'in curses' state gettmode establish current tty modes mvcur low level cursor motion putp utility function that uses tputs to send characters via putchar. resetterm set tty modes to 'out of curses' state resetty reset tty flags to stored value saveterm save current modes as 'in curses' state savetty store current tty flags setterm establish terminal with given type setupterm establish terminal with given type tparm instantiate a string expression with parameters tputs apply padding information to a string vidattr like vidputs, but outputs through putchar vidputs output a string to put terminal in a specified video attribute mode

The programming manual also mentioned functions provided for termcap compatibility (commenting that they 'may go away at a later date'):

Function Description ──────────────────────────────────────────────── tgetent look up termcap entry for given name tgetflag get boolean entry for given id tgetnum get numeric entry for given id tgetstr get string entry for given id tgoto apply parameters to given capability tputs apply padding to capability, calling a function to put characters

Early terminfo programs obtained capability values from the TERMINAL structure initialized by setupterm.

SVr3 extended terminfo by adding functions to retrieve capability values (like the termcap interface), and reusing tgoto and tputs:

Function Description ─────────────────────────────────────────── tigetflag get boolean entry for given id tigetnum get numeric entry for given id tigetstr get string entry for given id

SVr3 also replaced several of the SVr2 terminfo functions which had no counterpart in the termcap interface, documenting them as obsolete:

Function Replaced by

───────────────────────────── crmode cbreak fixterm reset_prog_mode gettmode N/A nocrmode nocbreak resetterm reset_shell_mode saveterm def_prog_mode setterm setupterm

SVr3 kept the mvcur, vidattr and vidputs functions, along with putp, tparm and tputs. The latter were needed to support padding, and handling functions such as vidattr (which used more than the two parameters supported by tgoto).

SVr3 introduced the functions for switching between terminal descriptions, e.g., set_curterm. The various global variables such as boolnames were mentioned in the programming manual at this point.

SVr4 added the vid_attr and vid_puts functions.

There are other low-level functions declared in the curses header files on Unix systems, but none were documented. The functions marked 'obsolete' remained in use by the Unix vi editor.

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