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76 lines
3.9 KiB
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76 lines
3.9 KiB
Plaintext
Mytinfo is Public Domain and comes with no guarantees.
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By Ross Ridge (ross@zooid.guild.org).
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Mytinfo is a single library that combines the functionality of the
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standard Unix termcap and terminfo libraries. It has the special
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ability of being able to fetch terminal descriptions from both
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termcap and terminfo databases regardless of which set of functions,
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termcap or terminfo, are used. It can even read terminal descriptions
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from terminfo source files.
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You should be able to compile this library on almost all versions of Unix.
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Much of it's development was done on '386 Xenix, but I've sucessfuly built
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mytinfo under BSD 4.3, HP-UX 2.1 (System III), SunOS 3.5, and Amix
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(System V R4). There hasn't been a large amount of testing of the support
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programmes that come with the library, but the library itself has been in
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use on a couple of public access Unix sites for over two years. It has
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successfully linked and run with many programmes such as rn, vi and nethack.
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Included in the package is tconv, an "all-in-one" programme that will
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compile terminfo sources to binary format and also translate termcap to
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either terminfo source or binary. tic and cap2info are just links
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to the tconv programme. I've also written replacement for tset,
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that uses the mytinfo library, in case tset doesn't come with your
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system or if you aren't too pleased with the one that did. Since this
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is the newest part of the package it probably still has a few bugs.
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You'll also find tput, as well two versions of clear, one that uses
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termcap and the other that uses terminfo.
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The environment variables TERMCAP and TERMINFO can have multiple
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filenames separated by a space, a feature not in terminfo and not in
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most termcaps. This is very handy for users that maintain their own
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private databases, as they don't have to have a copy the entire
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database. Eg:
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TERMCAP="$HOME/.termcap /etc/termcap"
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TERMINFO="$HOME/terminfo /usr/lib/terminfo"
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export TERMCAP TERMINFO
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The library will also check compiled-in default locations for terminal
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descriptions. Like most termcaps, the TERMCAP variable can also
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contain the complete termcap terminal description, usually supplied
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from tset at login. The TERMINFO variable can also contain a complete
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terminfo description, but there is no programme like tset to supply it.
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Unlike termcap, this library can only use capabilities that it knows about.
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However it does knows about all the standard ones, and you can easily
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add your own to it's list. Included in the list are all terminfo
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capabilities to Release 4 of System V, obsolete termcap capabilities, a
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few caps used from the University of Waterloo (UW), a couple from GNU Emacs,
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and a few I made up myself. Two extensions to the standard termcap % codes
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are supported, GNU's %a, %m, %b, and %f, and UW's %-, %a, and %s.
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Termcap and terminfo source descriptions can be mixed in one file, but
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because of this termcap databases must be in a certain style. All
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continuation lines of a termcap entry must be indented from the left
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margin by white space. This shouldn't be a problem with most sites
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since this is the style that most termcap files are distributed, but local
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additions may not adhere to this style. Another possible problem is
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that termcap entries should end with a colon (:), but in most
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distributed termcaps there are entries that don't. If a one line
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termcap entry doesn't end with a colon, it will be ignored. A quick
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way to find these is "tconv -c /etc/termcap > /dev/null".
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See the file INSTALL for instructions on configuring and installing
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this library. The file README.doc lists the functions supported by the
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library, and gives short description of the tconv programme. tconv.1 is
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a simple man page for tconv. terminfo.src contains a few sample
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terminal descriptions in terminfo source format. TODO is a list of
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possible enhancements too the library, your comments and additions
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are welcome.
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Please let me know of any bugs you find, as well as any ideas you have
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for improvement.
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Ross Ridge
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ross@zooid.guild.org
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