tic
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NAME
tic - the terminfo entry-description compiler
SYNOPSIS
tic [-v[n]] [-cpICNru] file
DESCRIPTION
The command tic translates a terminfo file from source
format into compiled format. The compiled format is necessary for use with
the library routines in ncurses(3X).
The results are normally placed in the system terminfo
directory /gg/lib/terminfo. There are two ways to change this behavior.
First, you may override the system default by setting the variable
TERMINFO in your shell environment to a valid (existing) directory name.
Secondly, if tic cannot get access to /gg/lib/terminfo or your TERMINFO
directory, it looks for the directory $HOME/.terminfo; if that directory
exists, the entry is placed there.
Libraries that read terminfo entries are expected to check for a TERMINFO
directory first, look at $HOME/.terminfo if TERMINFO is not set, and
finally look in /gg/lib/terminfo.
- -c
-
specifies to only check file for errors, including syntax problems and
bad use links. If you specify -C (-I) with this option, the code
will print warnings about entries which, after use resolution, are more than
1023 (4096) bytes long. Due to a fixed buffer length in older termcap
libraries (and a documented limit in terminfo), these entries may cause core
dumps.
- -vn
-
specifies that (verbose) output be written to standard error trace
information showing tic's progress. The optional integer
n is a number from 1 to 10, inclusive, indicating the desired
level of detail of information. If n is omitted, the default
level is 1. If n is specified and greater than 1, the level of
detail is increased.
- -I
-
Force source translation to terminfo format.
- -C
-
Force source translation to termcap format. Note: this differs from the -C
option of infocmp(1m) in that it does not merely translate capability
names, but also translates terminfo strings to termcap format. Capabilities
that are not translatable are left in the entry under their terminfo names
but commented out with two preceding dots.
- -N
-
Disable smart defaults.
Normally, when translating from termcap to terminfo, the compiler makes
a number of assumptions about the defaults of string capabilities
reset1_string, carriage_return, cursor_left,
cursor_down, scroll_forward, tab, newline,
key_backspace, key_left, and key_down, then attempts
to use obsolete termcap capabilities to deduce correct values. It also
normally suppresses output of obsolete termcap capabilities such as bs.
This option forces a more literal translation that also preserves the
obsolete capabilities.
- -Rsubset
-
Restrict output to a given subset. This option is for use with archaic
versions of terminfo like those on SVr1, Ultrix, or HP/UX that don't support
the full set of SVR4/XSI Curses terminfo; and outright broken ports like AIX
that have their own extensions incompatible with SVr4/XSI. Available subsets
are "SVr1", "Ultrix", "HP", and AIX"; see terminfo(5) for details.
- -r
-
Force entry resolution (so there are no remaining tc capabilities) even
when doing translation to termcap format. This may be needed if you are
preparing a termcap file for a termcap library (such as GNU termcap up
to version 1.3 or BSD termcap up to 4.3BSD) that doesn't handle multiple
tc capabilities per entry.
- file
-
contains one or more terminfo terminal descriptions in source
format [see terminfo(5)]. Each description in the file
describes the capabilities of a particular terminal.
The debug flag levels are as follows:
- 1
-
Names of files created and linked
- 2
-
Information related to the ``use'' facility
- 3
-
Statistics from the hashing algorithm
- 5
-
String-table memory allocations
- 7
-
Entries into the string-table
- 8
-
List of tokens encountered by scanner
- 9
-
All values computed in construction of the hash table
If n is not given, it is taken to be one.
All but one of the capabilities recognized by tic are documented
in terminfo(5). The exception is the use capability.
When a use=entry-name field is discovered in a
terminal entry currently being compiled, tic reads in the binary
from /gg/lib/terminfo to complete the entry. (Entries created from
file will be used first. If the environment variable
TERMINFO is set, that directory is searched instead of
/gg/lib/terminfo.) tic duplicates the capabilities in
entry-name for the current entry, with the exception of
those capabilities that explicitly are defined in the current entry.
When an entry, e.g., entry_name_1, contains a
use=entry_name_2 field, any canceled
capabilities in entry_name_2 must also appear in
entry_name_1 before use= for these capabilities to be
canceled in entry_name_1.
If the environment variable TERMINFO is set, the compiled
results are placed there instead of /gg/lib/terminfo.
Total compiled entries cannot exceed 4096 bytes. The name field cannot
exceed 128 bytes. Terminal names exceeding 14 characters will be
truncated to 14 characters and a warning message will be printed.
COMPATIBILITY
There is some evidence that historic tic implementations treated
description fields with no whitespace in them as additional aliases or
shortnames. This tic does not do that, but it does warn when
description fields may be treated that way and check them for dangerous
characters.
EXTENSIONS
Unlike the stock SVr4 tic command, this implementation can actually
compile termcap sources. In fact, entries in terminfo and termcap syntax can
be mixed in a single source file. See terminfo(5) for the list of
termcap names taken to be equivalent to terminfo names.
The SVr4 manual page are not clear on the resolution rules for use
capabilities. This implementation of tic will find use targets anywhere
in the source file, or anywhere in the file tree routed at TERMINFO (if
TERMINFO is defined), or in the user's $HOME/.terminfo directory
(if it exists), or (finally) anywhere in the system's file tree of
compiled entries.
The error messages from this tic have the same format as GNU C
error messages, and can be parsed by GNU Emacs's compile facility.
The -I, -C, -N, -R, and -r options are not supported under SVr4.
The SVr4 -c mode does not report bad use links.
System V does not compile entries to or read entries from your
$HOME/.terminfo directory unless TERMINFO is explicitly set to it.
FILES
- /gg/lib/terminfo/?/*
-
Compiled terminal description database.
SEE ALSO
infocmp(1m), captoinfo(1m), infotocap(1m), toe(1m),
curses(3X), terminfo(5).
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- COMPATIBILITY
-
- EXTENSIONS
-
- FILES
-
- SEE ALSO
-
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Time: 01:50:47 GMT, July 11, 2022