+provides the same functionality as \fBsetterm(\fIterm\fB)\fR,
+and is not recommended for new programs.
+This implementation provides each of those symbols
+as macros for BSD compatibility,
+.\" ***************************************************************************
+.SH HISTORY
+SVr2 introduced the terminfo feature.
+Its programming manual mentioned the following low-level functions.
+.PP
+.TS
+lB lB
+lB lx.
+Function Description
+_
+fixterm restore tty to \*(``in curses\*('' state
+gettmode establish current tty modes
+mvcur low level cursor motion
+putp T{
+utility function that uses \fBtputs\fP to send characters via \fBputchar\fP.
+T}
+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 \fBvidputs\fP, but outputs through \fBputchar\fP
+vidputs T{
+output a string to put terminal in a specified video attribute mode
+T}
+.TE
+.PP
+The programming manual also mentioned
+functions provided for \fItermcap\fP compatibility
+(commenting that they \*(``may go away at a later date\*('').
+.PP
+.TS
+lB lB
+lB lx.
+Function Description
+_
+tgetent look up \fItermcap\fP entry for given \fIname\fP
+tgetflag get boolean entry for given \fIid\fP
+tgetnum get numeric entry for given \fIid\fP
+tgetstr get string entry for given \fIid\fP
+tgoto apply parameters to given capability
+tputs T{
+apply padding to capability, calling a function to put characters
+T}
+.TE
+.PP
+Early terminfo programs obtained capability values from the
+\fBTERMINAL\fP structure initialized by \fBsetupterm\fP.
+.PP
+SVr3 extended terminfo by adding functions to retrieve capability values
+(like the termcap interface),
+and reusing \fBtgoto\fP and \fBtputs\fP:
+.PP
+.TS
+lB lB
+lB lx.
+Function Description
+_
+tigetflag get boolean entry for given \fIid\fP
+tigetnum get numeric entry for given \fIid\fP
+tigetstr get string entry for given \fIid\fP
+.TE
+.PP
+SVr3 also replaced several of the SVr2 \fIterminfo\fP functions
+which had no counterpart in the \fItermcap\fP interface,
+documenting them as obsolete.
+.PP
+.TS
+lB lB
+l lx.
+Function Replaced by
+_
+crmode cbreak
+fixterm reset_prog_mode
+gettmode \fIn/a\fP
+nocrmode nocbreak
+resetterm reset_shell_mode
+saveterm def_prog_mode
+setterm setupterm
+.TE
+.PP
+SVr3 kept the \fBmvcur\fP, \fBvidattr\fP and \fBvidputs\fP functions,
+along with \fBputp\fP, \fBtparm\fP and \fBtputs\fP.
+The latter were needed to support padding,
+and handling functions such as \fBvidattr\fP
+(which used more than the two parameters supported by \fBtgoto\fP).
+.PP
+SVr3 introduced the functions for switching between terminal
+descriptions, e.g., \fBset_curterm\fP.
+Some of that was incremental improvements to the SVr2 library:
+.bP
+The \fBTERMINAL\fP type definition was introduced in SVr3.01,
+for the \fBterm\fP structure provided in SVr2.
+.bP
+The various global variables such as \fBboolnames\fP were mentioned
+in the programming manual at this point,
+though the variables were provided in SVr2.
+.PP
+SVr4 added the \fBvid_attr\fP and \fBvid_puts\fP functions.
+.PP
+There are other low-level functions declared in the \fIcurses\fP header files
+on Unix systems,
+but none were documented.
+The functions marked \*(``obsolete\*('' remained in use
+by the Unix \fBvi\fP(1) editor.
+.SH PORTABILITY
+.SS Extensions
+The functions marked as extensions were designed for \fBncurses\fP(3X),
+and are not found in SVr4 curses, 4.4BSD curses,
+or any other previous version of curses.
+.SS Legacy functions
+X/Open notes that \fBvidattr\fP and \fBvidputs\fP may be macros.
+.PP
+The function \fBsetterm\fP is not described by X/Open and must