INFOCMP(1M-SysV) RISC/os Reference Manual INFOCMP(1M-SysV)
NAME
infocmp - compare or print out terminfo descriptions
SYNOPSIS
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
infocmp can be used to compare a binary terminfo(4) entry
with other terminfo entries, rewrite a terminfo(4) descrip-
tion to take advantage of the use= terminfo field, or print
out a terminfo(4) description from the binary file (term(4))
in a variety of formats. In all cases, the boolean fields
will be printed first, followed by the numeric fields, fol-
lowed by the string fields.
Default Options
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(4) 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 produce a list of each capability that
is different. In this manner, if one
has two entries for the same terminal or
similar terminals, using infocmp will
show what is different between the two
entries. This is sometimes necessary
when more than one person produces an
entry for the same terminal and one
wants to see what is different between
the two.
-c produce a list of each capability that
is common between the 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 using.
-n produce a list of each capability that
is in neither entry. If no termnames
are given, the environment variable TERM
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will be used for both of the termnames.
This can be used as a quick check to see
if anything was left out of the descrip-
tion.
Source Listing Options [-I] [-L] [-C] [-r]
The -I, -L, and -C options will produce a source listing for
each terminal named.
-I use the terminfo(4) names
-L use the long C variable name listed in
<term.h>
-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 the termcap format. infocmp will attempt
to convert most of the parameterized information, but that
which it doesn't will be plainly marked in the output and
commented out. These should be edited by hand.
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 become optional.
All termcap variables no longer supported by terminfo(4),
but which are derivable from other terminfo(4) variables,
will be output. Not all terminfo(4) 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, and termcap strings were not as
flexible, it is not always possible to convert a terminfo(4)
string capability into an equivalent termcap format. Not
all of these strings will be able to be converted. A subse-
quent conversion of the termcap file back into terminfo(4)
format will not necessarily reproduce the original ter-
minfo(4) source.
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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 produce a terminfo(4) source description
of the first terminal termname which is
relative to the sum of the descriptions
given by the entries for the other ter-
minals termnames. It does this by
analyzing the differences between the
first termname and the other termnames
and producing a description with use=
fields for the other terminals. In this
manner, it is possible to retrofit gen-
eric terminfo entries into a terminal's
description. Or, if two similar termi-
nals 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 first
termname.
The order of the other termname entries is significant.
Since the terminfo compiler tic(1M) 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 incon-
sistencies between the other termname entries as they are
found.
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Alternatively, specifying a capability after a use= entry
that contains that capability will cause the second specifi-
cation to be ignored. Using infocmp to recreate a descrip-
tion 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 sort the fields within each type accord-
ing to the argument below:
d leave fields in the order that they are
stored in the terminfo database.
i sort by terminfo name.
l sort by the long C variable name.
c sort by the termcap name.
If no -s option is 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 sorting to be done by the termcap name or the long C
variable name, respectively.
-v print out tracing information on stan-
dard error as the program runs.
-V print out the version of the program in
use on standard error and exit.
-1 cause the fields to printed out one to a
line. Otherwise, the fields will be
printed several to a line to a maximum
width of 60 characters.
-w change the output to width characters.
Changing Databases [-A directory] [-B directory]
The location of the compiled terminfo(4) 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(4) 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
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to compare descriptions for a terminal with the same name
located in two different databases. This is useful for com-
paring descriptions for the same terminal created by dif-
ferent people. Otherwise the terminals would have to be
named differently in the terminfo(4) database for a com-
parison to be made.
FILES
/usr/lib/terminfo/?/* compiled terminal description database
DIAGNOSTICS
malloc is out of space!
There was not enough memory available to process
all the terminal descriptions requested. Run
infocmp several times, each time including a sub-
set of the desired termnames.
use= order dependency found:
A value specified in one relative terminal specif-
ication was different from that in another rela-
tive terminal specification.
A relative terminal name did not contribute anything to the final
description.
done.
must have at least two terminal names for a comparison to be
The -u, -d and -c options require at least two
terminal names.
SEE ALSO
tic(1M), curses(3X), term(4), terminfo(4) in the
Programmer's Reference Manual.
captoinfo(1M) in the System Administrator's Reference
Manual.
Chapter 10 of the Programmer's Guide.
NOTE
The termcap database (from earlier releases of UNIX System
V) may not be supplied in future releases.
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