NAME [Toc] [Back]
infocmp - compare or print out terminfo descriptions
SYNOPSIS [Toc] [Back]
infocmp [-d] [-c] [-n] [-I] [-L] [-C] [-r] [-u] [-s d|i|l|c] [-v] [-V]
[-1] [-w width] [-A directory] [-B directory] [termname... ]
DESCRIPTION [Toc] [Back]
infocmp can be used to compare a binary terminfo entry with other
terminfo entries, rewrite a terminfo description to take advantage of
the use= terminfo field, or print out a terminfo description from the
binary file (term) in a variety of formats. In all cases, the boolean
fields will be printed first, followed by the numeric fields, followed
by the string fields.
Default Options [Toc] [Back]
If no options are specified and zero or one termnames are specified,
the -I option will be assumed. If more than one termname is
specified, the -d option will be assumed.
Comparison Options [-d] [-c] [-n]
infocmp compares the terminfo description of the first terminal
termname with each of the descriptions given by the entries for the
other terminal's termnames. If a capability is defined for only one
of the terminals, the value returned will depend on the type of the
capability: F for boolean variables, -1 for integer variables, and
NULL for string variables.
-d produces a list of each capability that is different between two
entries. This option is useful to show the difference between
two entries, created by different people, for the same or similar
-c produces a list of each capability that is common between two
entries. Capabilities that are not set are ignored. This option
can be used as a quick check to see if the -u option is worth
-n produces a list of each capability that is in neither entry. If
no termnames are given, the environment variable TERM will be
used for both of the termnames. This can be used as a quick
check to see if anything was left out of a description.
Source Listing Options [-I] [-L] [-C] [-r]
The -I, -L, and -C options will produce a source listing for each
-I use the terminf names
-L use the long C variable name listed in <term.h>
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-C use the termcap names
-r when using -C, put out all capabilities in termcap form
If no termnames are given, the environment variable TERM will be used
for the terminal name.
The source produced by the -C option may be used directly as a termcap
entry, but not all of the parameterized strings may be changed to th
termcap format. infocmp will attempt to convert most of the
parameterized information, but anything not converted will be plainly
marked in the output and commented out. These should be edited by
All padding information for strings will be collected together and
placed at the beginning of the string where termcap expects it.
Mandatory padding (padding information with a trailing '/') will
All termcap variables no longer supported by terminfo, but which are
derivable from other terminfo variables, will be output. Not all -
terminfo capabilities will be translated; only those variables which
were part of termcap will normally be output. Specifying the -r
option will take off this restriction, allowing all capabilities to be
output in termcap form.
Note that because padding is collected to the beginning of the
capability, not all capabilities are output. Mandatory padding is not
supported. Because termcap strings are not as flexible, it is not
always possible to convert a terminfo string capability into an
equivalent termcap format. A subsequent conversion of the termcap
file back into terminfo format will not necessarily reproduce the
original terminfo source.
Some common terminfo parameter sequences, their termcap equivalents,
and some terminal types which commonly have such sequences, are:
terminfo termcap Representative Terminals
%p1%c %. adm
%p1%d %d hp, ANSI standard, vt100
%p1%'x'%+%c %+x concept
%i %i ANSI standard, vt100
%p1%?%'x'%>%t%p1%'y'%+%; %>xy concept
%p2 is printed before %p1 %r hp
Use= Option [-u]
-u produces a terminfo source description of the first terminal
termname which is relative to the sum of the descriptions
given by the entries for the other terminals termnames. It
does this by analyzing the differences between the first
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termname and the other termnames and producing a description
with use= fields for the other terminals. In this manner, it
is possible to retrofit generic terminfo entries into a
terminal's description. Or, if two similar terminals exist,
but were coded at different times or by different people so
that each description is a full description, using infocmp
will show what can be done to change one description to be
relative to the other.
A capability will get printed with an at-sign (@) if it no longer
exists in the first termname, but one of the other termname entries
contains a value for it. A capability's value gets printed if the
value in the first termname is not found in any of the other termname
entries, or if the first of the other termname entries that has this
capability gives a different value for the capability than that in the
The order of the other termname entries is significant. Since the
terminfo compiler tic does a left-to-right scan of the capabilities,
specifying two use= entries that contain differing entries for the
same capabilities will produce different results depending on the
order that the entries are given in. infocmp will flag any such
inconsistencies between the other termname entries as they are found.
Alternatively, specifying a capability after a use= entry that
contains that capability will cause the second specification to be
ignored. Using infocmp to recreate a description can be a useful
check to make sure that everything was specified correctly in the
original source description.
Another error that does not cause incorrect compiled files, but will
slow down the compilation time, is specifying extra use= fields that
are superfluous. infocmp will flag any other termname use= fields
that were not needed.
Other Options [-s d|i|l|c] [-v] [-V] [-1] [-w width]
-s sorts the fields within each type according to the argument
d leave fields in the order that they are stored in the
i sort by terminfo name.
l sort by the long C variable name.
c sort by the termcap name.
If the -s option is not given, the fields printed out will be
sorted alphabetically by the terminfo name within each type,
except in the case of the -C or the -L options, which cause the
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sorting to be done by the termcap name or the long C variable
-v prints out tracing information on standard error as the program
-V prints out the version of the program in use on standard error
-1 causes the fields to be printed out one to a line. Otherwise,
the fields will be printed several to a line to a maximum width
of 60 characters.
-w changes the output to width characters.
Changing Databases [-A directory] [-B directory]
The location of the compiled terminfo database is taken from the
environment variable TERMINFO. If the variable is not defined, or the
terminal is not found in that location, the system terminfo database,
usually in /usr/lib/terminfo, will be used. The options -A and -B may
be used to override this location. The -A option will set TERMINFO
for the first termname and the -B option will set TERMINFO for the
other termnames. With this, it is possible to compare descriptions
for a terminal with the same name located in two different databases.
This is useful for comparing descriptions for the same terminal
created by different people.
FILES [Toc] [Back]
/usr/lib/terminfo/?/* Compiled terminal description
SEE ALSO [Toc] [Back]
curses_intro(3X), captoinfo(1M), terminfo(4), tic(1M).
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