ncurses 6.1 - patch 20180331

[ncurses.git] / man / term.5

diff --git a/man/term.5 b/man/term.5
index d4519dffe1b86ac5fa7a6d887af0d53413b3175b..554e8ed598e6723c5ee5b7e27c2d65f4e56de968 100644 (file)
--- a/man/term.5
+++ b/man/term.5
@@ -1,5 +1,5 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2016,2017 Free Software Foundation, Inc.              *
+.\" Copyright (c) 1998-2017,2018 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            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,7 +26,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: term.5,v 1.27 2017/12/16 21:27:20 tom Exp $
+.\" $Id: term.5,v 1.28 2018/03/31 22:41:29 tom Exp $

 .TH term 5
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
 .TH term 5
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``


@@ -58,7 +58,7 @@ term \- format of compiled term file.
 .SH DESCRIPTION
 .SS STORAGE LOCATION
 Compiled terminfo descriptions are placed under the directory \fB\*d\fP.
 .SH DESCRIPTION
 .SS STORAGE LOCATION
 Compiled terminfo descriptions are placed under the directory \fB\*d\fP.

-Two configurations are supported (when building the ncurses libraries):
+Two configurations are supported (when building the \fBncurses\fP libraries):

 .TP 5
 .B directory tree
 A two-level scheme is used to avoid a linear search
 .TP 5
 .B directory tree
 A two-level scheme is used to avoid a linear search


@@ -81,11 +81,11 @@ the terminfo's primary name as a key,
 and records containing only aliases pointing to the primary name.
 .IP
 If built to write hashed databases,
 and records containing only aliases pointing to the primary name.
 .IP
 If built to write hashed databases,

-ncurses can still read terminfo databases organized as a directory tree,
+\fBncurses\fP can still read terminfo databases organized as a directory tree,

 but cannot write entries into the directory tree.
 It can write (or rewrite) entries in the hashed database.
 .IP
 but cannot write entries into the directory tree.
 It can write (or rewrite) entries in the hashed database.
 .IP

-ncurses distinguishes the two cases in the TERMINFO and TERMINFO_DIRS
+\fBncurses\fP distinguishes the two cases in the TERMINFO and TERMINFO_DIRS

 environment variable by assuming a directory tree for entries that
 correspond to an existing directory,
 and hashed database otherwise.
 environment variable by assuming a directory tree for entries that
 correspond to an existing directory,
 and hashed database otherwise.


@@ -129,7 +129,8 @@ The first byte contains the least significant 8 bits of the value,
 and the second byte contains the most significant 8 bits.
 (Thus, the value represented is 256*second+first.)
 The value \-1 is represented by the two bytes 0377, 0377; other negative
 and the second byte contains the most significant 8 bits.
 (Thus, the value represented is 256*second+first.)
 The value \-1 is represented by the two bytes 0377, 0377; other negative

-values are illegal. This value generally
+values are illegal.
+This value generally

 means that the corresponding capability is missing from this terminal.
 Note that this format corresponds to the hardware of the \s-1VAX\s+1
 and \s-1PDP\s+1-11 (that is, little-endian machines).
 means that the corresponding capability is missing from this terminal.
 Note that this format corresponds to the hardware of the \s-1VAX\s+1
 and \s-1PDP\s+1-11 (that is, little-endian machines).


@@ -179,12 +180,14 @@ With some minor variations of the offsets (see PORTABILITY),
 the same binary format is used in all modern UNIX systems.
 Each system uses a predefined set of boolean, number or string capabilities.
 .PP
 the same binary format is used in all modern UNIX systems.
 Each system uses a predefined set of boolean, number or string capabilities.
 .PP

-The ncurses libraries and applications support extended terminfo binary format,
-allowing users to define capabilities which are loaded at runtime.  This
+The \fBncurses\fP libraries and applications support extended terminfo binary format,
+allowing users to define capabilities which are loaded at runtime.
+This

 extension is made possible by using the fact that the other implementations
 stop reading the terminfo data when they have reached the end of the size given
 in the header.
 extension is made possible by using the fact that the other implementations
 stop reading the terminfo data when they have reached the end of the size given
 in the header.

-ncurses checks the size, and if it exceeds that due to the predefined data,
+\fBncurses\fP checks the size,
+and if it exceeds that due to the predefined data,

 continues to parse according to its own scheme.
 .PP
 First, it reads the extended header (5 short integers):
 continues to parse according to its own scheme.
 .PP
 First, it reads the extended header (5 short integers):


@@ -200,13 +203,17 @@ count of extended numeric capabilities
 count of extended string capabilities
 .TP 5
 (4)
 count of extended string capabilities
 .TP 5
 (4)

-size of the extended string table in bytes.
+count of the items in extended string table

 .TP 5
 (5)
 .TP 5
 (5)

-last offset of the extended string table in bytes.
+size of the extended string table in bytes

 .RE
 .PP
 .RE
 .PP

-Using the counts and sizes, ncurses allocates arrays and reads data
+The count- and size-values for the extended string table
+include the extended capability \fInames\fP as well as
+extended capability \fIvalues\fP.
+.PP
+Using the counts and sizes, \fBncurses\fP allocates arrays and reads data

 for the extended capabilities in the same order as the header information.
 .PP
 The extended string table contains values for string capabilities.
 for the extended capabilities in the same order as the header information.
 .PP
 The extended string table contains values for string capabilities.


@@ -221,7 +228,7 @@ names with members of a \fBTERMTYPE\fP structure.
 .SS EXTENDED NUMBER FORMAT
 .PP
 On occasion, 16-bit signed integers are not large enough.
 .SS EXTENDED NUMBER FORMAT
 .PP
 On occasion, 16-bit signed integers are not large enough.

-With ncurses 6.1, a new format is introduced by making a few changes
+With \fBncurses\fP 6.1, a new format was introduced by making a few changes

 to the legacy format:
 .bP
 a different magic number (0542)
 to the legacy format:
 .bP
 a different magic number (0542)


@@ -255,11 +262,13 @@ of boolean, number, and string capabilities.
 .PP
 Despite the consistent use of little-endian for numbers and the otherwise
 self-describing format, it is not wise to count on portability of binary
 .PP
 Despite the consistent use of little-endian for numbers and the otherwise
 self-describing format, it is not wise to count on portability of binary

-terminfo entries between commercial UNIX versions.  The problem is that there
+terminfo entries between commercial UNIX versions.
+The problem is that there

 are at least three versions of terminfo (under HP\-UX, AIX, and OSF/1) which
 diverged from System V terminfo after SVr1, and have added extension
 capabilities to the string table that (in the binary format) collide with
 are at least three versions of terminfo (under HP\-UX, AIX, and OSF/1) which
 diverged from System V terminfo after SVr1, and have added extension
 capabilities to the string table that (in the binary format) collide with

-System V and XSI Curses extensions.  See \fBterminfo\fR(\*n) for detailed
+System V and XSI Curses extensions.
+See \fBterminfo\fR(\*n) for detailed

 discussion of terminfo source compatibility issues.
 .PP
 Direct access to the \fBTERMTYPE\fP structure is provided for legacy
 discussion of terminfo source compatibility issues.
 .PP
 Direct access to the \fBTERMTYPE\fP structure is provided for legacy


@@ -271,7 +280,7 @@ A small number of terminal descriptions use uppercase characters in
 their names.
 If the underlying filesystem ignores the difference between
 uppercase and lowercase,
 their names.
 If the underlying filesystem ignores the difference between
 uppercase and lowercase,

-ncurses represents the \*(``first character\*('' of the terminal name used as
+\fBncurses\fP represents the \*(``first character\*('' of the terminal name used as

 the intermediate level of a directory tree in (two-character) hexadecimal form.
 .SH EXAMPLE
 As an example, here is a description for the Lear-Siegler
 the intermediate level of a directory tree in (two-character) hexadecimal form.
 .SH EXAMPLE
 As an example, here is a description for the Lear-Siegler