xref: /freebsd/contrib/ncurses/README (revision f4aafb9ea6efd41efe05876d0e6ed70e46b425f0)
1-------------------------------------------------------------------------------
2-- Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.               --
3--                                                                           --
4-- Permission is hereby granted, free of charge, to any person obtaining a   --
5-- copy of this software and associated documentation files (the             --
6-- "Software"), to deal in the Software without restriction, including       --
7-- without limitation the rights to use, copy, modify, merge, publish,       --
8-- distribute, distribute with modifications, sublicense, and/or sell copies --
9-- of the Software, and to permit persons to whom the Software is furnished  --
10-- to do so, subject to the following conditions:                            --
11--                                                                           --
12-- The above copyright notice and this permission notice shall be included   --
13-- in all copies or substantial portions of the Software.                    --
14--                                                                           --
15-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS   --
16-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF                --
17-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN --
18-- NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,       --
19-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR     --
20-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE --
21-- USE OR OTHER DEALINGS IN THE SOFTWARE.                                    --
22--                                                                           --
23-- Except as contained in this notice, the name(s) of the above copyright    --
24-- holders shall not be used in advertising or otherwise to promote the      --
25-- sale, use or other dealings in this Software without prior written        --
26-- authorization.                                                            --
27-------------------------------------------------------------------------------
28-- $Id: README,v 1.25 2012/08/11 20:11:26 tom Exp $
29-------------------------------------------------------------------------------
30		README file for the ncurses package
31
32See the file ANNOUNCE for a summary of ncurses features and ports.
33See the file INSTALL for instructions on how to build and install ncurses.
34See the file NEWS for a release history and bug-fix notes.
35See the file TO-DO for things that still need doing, including known bugs.
36
37Browse the file misc/ncurses-intro.html for narrative descriptions of how
38to use ncurses and the panel, menu, and form libraries.
39
40Browse the file doc/html/hackguide.html for a tour of the package internals.
41
42ROADMAP AND PACKAGE OVERVIEW:
43
44You should be reading this file in a directory called:  ncurses-d.d, where d.d
45is the current version number (see the dist.mk file in this directory for
46that).  There should be a number of subdirectories, including `c++', `form',
47`man', `menu', `misc', `ncurses', `panel', `progs', `test', 'tack' and `Ada95'.
48(The 'tack' program may be distributed separately).
49
50A full build/install of this package typically installs several libraries, a
51handful of utilities, and a database hierarchy.  Here is an inventory of the
52pieces:
53
54The libraries are:
55
56	libncurses.a       (normal)
57	libncurses.so      (shared)
58	libncurses_g.a     (debug and trace code enabled)
59	libncurses_p.a     (profiling enabled)
60
61	libpanel.a         (normal)
62	libpanel.so        (shared)
63	libpanel_g.a       (debug and trace code enabled)
64
65	libmenu.a          (normal)
66	libmenu.so         (shared)
67	libmenu_g.a        (debug enabled)
68
69	libform.a          (normal)
70	libform.so         (shared)
71	libform_g.a        (debug enabled)
72
73If you configure using the --enable-widec option, a "w" is appended to the
74library names (e.g., libncursesw.a), and the resulting libraries support
75wide-characters, e.g., via a UTF-8 locale.  The corresponding header files
76are compatible with the non-wide-character configuration; wide-character
77features are provided by ifdef's in the header files.  The wide-character
78library interfaces are not binary-compatible with the non-wide-character
79version.
80
81If you configure using the --enable-reentrant option, a "t" is appended to the
82library names (e.g., libncursest.a) and the resulting libraries have a
83different binary interface which makes the ncurses interface more "opaque".
84
85The ncurses libraries implement the curses API.  The panel, menu and forms
86libraries implement clones of the SVr4 panel, menu and forms APIs.  The source
87code for these lives in the `ncurses', `panel', `menu', and `form' directories
88respectively.
89
90In the `c++' directory, you'll find code that defines an interface to the
91curses, forms, menus and panels library packaged as C++ classes, and a demo program in C++
92to test it.  These class definition modules are not installed by the 'make
93install.libs' rule as libncurses++.
94
95In the `Ada95' directory, you'll find code and documentation for an
96Ada95 binding of the curses API, to be used with the GNAT compiler.
97This binding is built by a normal top-level `make' if configure detects
98an usable version of GNAT (3.11 or above). It is not installed automatically.
99See the Ada95 directory for more build and installation instructions and
100for documentation of the binding.
101
102To do its job, the ncurses code needs your terminal type to be set in the
103environment variable TERM (normally set by your OS; under UNIX, getty(1)
104typically does this, but you can override it in your .profile); and, it needs a
105database of terminal descriptions in which to look up your terminal type's
106capabilities.
107
108In older (V7/BSD) versions of curses, the database was a flat text file,
109/etc/termcap; in newer (USG/USL) versions, the database is a hierarchy of
110fast-loading binary description blocks under /usr/lib/terminfo.  These binary
111blocks are compiled from an improved editable text representation called
112`terminfo' format (documented in man/terminfo.5).  The ncurses library can use
113either /etc/termcap or the compiled binary terminfo blocks, but prefers the
114second form.
115
116In the `misc' directory, there is a text file terminfo.src, in editable
117terminfo format, which can be used to generate the terminfo binaries (that's
118what make install.data does).  If the package was built with the
119--enable-termcap option enabled, and the ncurses library cannot find a terminfo
120description for your terminal, it will fall back to the termcap file supplied
121with your system (which the ncurses package installation leaves strictly
122alone).
123
124The utilities are as follows:
125
126	tic             -- terminfo source to binary compiler
127	infocmp         -- terminfo binary to source decompiler/comparator
128	clear           -- emits clear-screen for current terminal
129	tabs            -- set tabs on a terminal
130	tput            -- shell-script access to terminal capabilities.
131	toe             -- table of entries utility
132	tset            -- terminal-initialization utility
133
134The first two (tic and infocmp) are used for manipulating terminfo
135descriptions; the next two (clear and tput) are for use in shell scripts.  The
136last (tset) is provided for 4.4BSD compatibility.  The source code for all of
137these lives in the `progs' directory.
138
139Detailed documentation for all libraries and utilities can be found in the
140`man' and `doc' directories.  An HTML introduction to ncurses, panels, and
141menus programming lives in the `doc/html' directory.  Manpages in HTML format
142are under `doc/html/man'.
143
144The `test' directory contains programs that can be used to verify or
145demonstrate the functions of the ncurses libraries.  See test/README for
146descriptions of these programs.  Notably, the `ncurses' utility is designed to
147help you systematically exercise the library functions.
148
149AUTHORS:
150
151Pavel Curtis:
152	wrote the original ncurses
153
154Zeyd M. Ben-Halim:
155	port of original to Linux and many enhancements.
156
157Thomas Dickey (maintainer for 1.9.9g through 4.1, resuming with FSF's 5.0):
158	configuration scripts, porting, mods to adhere to XSI Curses in the
159	areas of background color, terminal modes.  Also memory leak testing,
160	the wresize, default colors and key definition extensions and numerous
161	bug fixes -- more than half of those enumerated in NEWS beginning with
162	the internal release 1.8.9, see
163
164		http://invisible-island.net/personal/changelogs.html
165
166Florian La Roche (official maintainer for FSF's ncurses 4.2)
167	Beginning with release 4.2, ncurses is distributed under an MIT-style
168	license.
169
170Eric S. Raymond:
171	the man pages, infocmp(1), tput(1), clear(1), captoinfo(1), tset(1),
172	toe(1), most of tic(1), trace levels, the HTML intro, wgetnstr() and
173	many other entry points, the cursor-movement optimization, the
174	scroll-pack optimizer for vertical motions, the mouse interface and
175	xterm mouse support, and the ncurses test program.
176
177Juergen Pfeifer
178	The menu and form libraries, C++ bindings for ncurses, menus, forms and
179	panels, as well as the Ada95 binding.  Ongoing support for panel.
180
181CONTRIBUTORS:
182
183Alexander V. Lukyanov
184	for numerous fixes and improvements to the optimization logic.
185
186David MacKenzie
187	for first-class bug-chasing and methodical testing.
188
189Ross Ridge
190	for the code that hacks termcap parameterized strings into terminfo.
191
192Warren Tucker and Gerhard Fuernkranz,
193	for writing and sending the panel library.
194
195Hellmuth Michaelis,
196	for many patches and testing the optimization code.
197
198Eric Newton, Ulrich Drepper, and Anatoly Ivasyuk:
199	the C++ code.
200
201Jonathan Ross,
202	for lessons in using sed.
203
204Keith Bostic (maintainer of 4.4BSD curses)
205	for help, criticism, comments, bug-finding, and being willing to
206	deep-six BSD curses for this one when it grew up.
207
208Richard Stallman,
209	for his commitment to making ncurses free software.
210
211Countless other people have contributed by reporting bugs, sending fixes,
212suggesting improvements, and generally whining about ncurses :-)
213
214BUGS:
215	See the INSTALL file for bug and developer-list addresses.
216	The Hacker's Guide in the doc directory includes some guidelines
217	on how to report bugs in ways that will get them fixed most quickly.
218