.\"***************************************************************************
-.\" Copyright 2018-2020,2021 Thomas E. Dickey *
+.\" Copyright 2018-2021,2023 Thomas E. Dickey *
.\" Copyright 1998-2016,2017 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: term.5,v 1.43 2021/12/25 21:28:59 tom Exp $
-.TH term 5
+.\" $Id: term.5,v 1.56 2023/09/16 23:38:39 tom Exp $
+.TH term 5 2023-09-16 "ncurses 6.4" "File formats"
.ie \n(.g .ds `` \(lq
.el .ds `` ``
.ie \n(.g .ds '' \(rq
.el .ds '' ''
+.ie n .ds CW R
+.el \{
+.ie \n(.g .ds CW CR
+.el .ds CW CW
+.\}
.de NS
.ie n .sp
.el .sp .5
.ie n .in +4
.el .in +2
.nf
-.ft C \" Courier
+.ft \*(CW
..
.de NE
.fi
.ds n 5
.ds d @TERMINFO@
.SH NAME
-term \- format of compiled term file.
+term \-
+compiled \fIterminfo\fR terminal description
.SH SYNOPSIS
.B term
.SH DESCRIPTION
names with members of a \fBTERMTYPE\fP structure.
.
.SS EXTENDED NUMBER FORMAT
-.PP
On occasion, 16-bit signed integers are not large enough.
With \fBncurses\fP 6.1, a new format was introduced by making a few changes
to the legacy format:
to provide data for the terminfo functions.
.SH PORTABILITY
.SS setupterm
-.PP
Note that it is possible for
.B setupterm
to expect a different set of capabilities
Also, new capabilities must always be added at the end of the lists
of boolean, number, and string capabilities.
.SS Binary format
-.PP
X/Open Curses does not specify a format for the terminfo database.
UNIX System V curses used a directory-tree of binary files,
one per terminal description.
can be matched by building ncurses
with different configuration options.
.SS Magic codes
-.PP
The magic number in a binary terminfo file is the first 16-bits (two bytes).
Besides making it more reliable for the library to check that a file
is terminfo,
This implementation uses 01036 as a continuation of that sequence,
but with a different high-order byte to avoid confusion.
.SS The TERMTYPE structure
-.PP
Direct access to the \fBTERMTYPE\fP structure is provided for legacy
applications.
Portable applications should use the \fBtigetflag\fP and related functions
described in \fBcurs_terminfo\fP(3X) for reading terminal capabilities.
.SS Mixed-case terminal names
-.PP
A small number of terminal descriptions use uppercase characters in
their names.
If the underlying filesystem ignores the difference between
bel=^G, clear=\032$<1>, cr=^M, cub1=^H, cud1=^J,
cuf1=^L, cup=\\E=%p1%{32}%+%c%p2%{32}%+%c, cuu1=^K,
home=^^, ind=^J,
-.NS
+.NE
.PP
and a hexadecimal dump of the compiled terminal description:
-.NS
-.ft CW
-\s-20000 1a 01 10 00 02 00 03 00 82 00 31 00 61 64 6d 33 ........ ..1.adm3
+.PP
+.ie n .in -2n
+.el .in +4n
+.TS
+lp-1f(\*(CW).
+0000 1a 01 10 00 02 00 03 00 82 00 31 00 61 64 6d 33 ........ ..1.adm3
0010 61 7c 6c 73 69 20 61 64 6d 33 61 00 00 01 50 00 a|lsi ad m3a...P.
0020 ff ff 18 00 ff ff 00 00 02 00 ff ff ff ff 04 00 ........ ........
0030 ff ff ff ff ff ff ff ff 0a 00 25 00 27 00 ff ff ........ ..%.'...
0120 ff ff ff ff ff ff 2f 00 07 00 0d 00 1a 24 3c 31 ....../. .....$<1
0130 3e 00 1b 3d 25 70 31 25 7b 33 32 7d 25 2b 25 63 >..=%p1% {32}%+%c
0140 25 70 32 25 7b 33 32 7d 25 2b 25 63 00 0a 00 1e %p2%{32} %+%c....
-0150 00 08 00 0c 00 0b 00 0a 00 ........ .\s+2
-.ft R
-.NE
-.sp
+0150 00 08 00 0c 00 0b 00 0a 00 ........ .
+.TE
+.in
.SH LIMITS
Some limitations:
.bP
The legacy format could have supported 32768-byte entries,
but was limited a virtual memory page's 4096 bytes.
.SH FILES
-\*d/*/* compiled terminal capability database
+\*d/*/* compiled terminal capability database
.SH SEE ALSO
\fBcurses\fP(3X), \fBterminfo\fP(\*n).
.SH AUTHORS