ncurses 6.1 - patch 20190727

[ncurses.git] / man / infocmp.1m

diff --git a/man/infocmp.1m b/man/infocmp.1m
index 19852e8f691d75f1fa547609de6de605f9bb91d4..cfee79a553eb2f82eb9be6dc70f59f7e29891b97 100644 (file)
--- a/man/infocmp.1m
+++ b/man/infocmp.1m
@@ -1,6 +1,6 @@
 '\" t
 .\"***************************************************************************
-.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc.              *
+.\" Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -27,7 +27,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: infocmp.1m,v 1.71 2018/05/19 21:07:17 tom Exp $
+.\" $Id: infocmp.1m,v 1.75 2019/07/20 18:42:11 tom Exp $
 .TH @INFOCMP@ 1M ""
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
@@ -49,7 +49,8 @@
 .de NE
 .fi
 .ft R
-.in -4
+.ie n  .in -4
+.el    .in -2
 ..
 .ds d @TERMINFO@
 .SH NAME
@@ -134,7 +135,7 @@ followed by the capability value.
 .IP
 The \fB\-u\fR option provides a related output,
 showing the first terminal description rewritten to use the second
-as a building block via the \*(``use=\*('' clause. 
+as a building block via the \*(``use=\*('' clause.
 .TP
 \fB\-n\fR
 produces a list of each capability that is in \fInone\fP of the given entries.
@@ -148,8 +149,8 @@ If no \fItermnames\fR are given,
 \fB@INFOCMP@\fR uses the environment variable \fBTERM\fR
 for each of the \fItermnames\fR.
 .SS Source Listing Options [\-I] [\-L] [\-C] [\-r]
-The \fB\-I\fR, \fB\-L\fR, and \fB\-C\fR options will produce a source listing for
-each terminal named.
+The \fB\-I\fR, \fB\-L\fR, and \fB\-C\fR options will produce
+a source listing for each terminal named.
 .
 .TS
 center tab(/) ;
@@ -552,13 +553,41 @@ Use the \fB\-W\fP option to do this.
 changes the output to \fIwidth\fR characters.
 .TP
 \fB\-x\fR
-print information for user-defined capabilities.
+print information for user-defined capabilities (see \fBuser_caps(\*n)\fP.
 These are extensions to the terminfo repertoire which can be loaded
 using the \fB\-x\fR option of \fB@TIC@\fP.
 .SH FILES
 .TP 20
 \*d
 Compiled terminal description database.
+.SH HISTORY
+Although System V Release 2 provided a terminfo library,
+it had no documented tool for decompiling the terminal descriptions.
+Tony Hansen (AT&T) wrote the first \fBinfocmp\fP in early 1984,
+for System V Release 3.
+.PP
+Eric Raymond used the AT&T documentation in 1995 to provide an equivalent
+\fB@INFOCMP@\fP for ncurses.
+In addition, he added a few new features such as:
+.bP
+the \fB\-e\fP option, to support \fIfallback\fP
+(compiled-in) terminal descriptions
+.bP
+the \fB\-i\fP option, to help with analysis 
+.PP
+Later, Thomas Dickey added the \fB\-x\fP (user-defined capabilities)
+option, and the \fB\-E\fP option to support fallback entries with
+user-defined capabilities.
+.PP
+For a complete list, see the \fIEXTENSIONS\fP section.
+.PP
+In 2010, Roy Marples provided an \fBinfocmp\fP program for NetBSD.
+It is less capable than the SVr4 or ncurses versions
+(e.g., it lacks the sorting options documented in X/Open),
+but does include the \fB\-x\fP option adapted from ncurses.
+.SH PORTABILITY
+X/Open Curses, Issue 7 (2009) provides a description of \fBinfocmp\fP.
+It does not mention the options used for converting to termcap format.
 .SH EXTENSIONS
 The
 \fB\-0\fR,
@@ -601,6 +630,7 @@ The \fB\-F\fR option of \fB@INFOCMP@\fR(1M) should be a \fB@TOE@\fR(1M) mode.
 \fB@TOE@\fR(1M),
 \fBcurses\fR(3X),
 \fBterminfo\fR(\*n).
+\fBuser_caps\fR(\*n).
 .sp
 https://invisible-island.net/ncurses/tctest.html
 .PP