/* Void Main's man pages */
{ phpMan } else { main(); }
infocmp(1M) infocmp(1M)
NAME
infocmp - compare or print out terminfo descriptions
SYNOPSIS
infocmp [-1CEFGILTUVcdegilnpqrtux]
[-v n] [-s d| i| l| c] [-R subset]
[-w width] [-A directory] [-B directory]
[termname...]
DESCRIPTION
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
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 vari-
ables.
The -d option 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 terminals.
The -c option 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 using.
The -n option 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 terminal named.
-I use the terminfo 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 parameterized strings can be
changed to the termcap format. infocmp will attempt to convert most of the parameterized information, and anything not
converted 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, 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 for-
mat 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 %iq ANSI standard, vt100
%p1%?%'x'%>%t%p1%'y'%+%; %>xy concept
%p2 is printed before %p1 %r hp
Use= Option [-u]
The -u option 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 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 first termname.
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 specifica-
tion to be ignored. Using infocmp to recreate a description can be a useful check to make sure that everything was spec-
ified 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.
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, in /usr/share/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.
Other Options
-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.
-a tells infocmp to retain commented-out capabilities rather than discarding them. Capabilities are commented by pre-
fixing them with a period.
-E Dump the capabilities of the given terminal as tables, needed in the C initializer for a TERMTYPE structure (the
terminal capability structure in the <term.h>). This option is useful for preparing versions of the curses library
hardwired for a given terminal type. The tables are all declared static, and are named according to the type and
the name of the corresponding terminal entry.
Before ncurses 5.0, the split between the -e and -E options was not needed; but support for extended names required
making the arrays of terminal capabilities separate from the TERMTYPE structure.
-e Dump the capabilities of the given terminal as a C initializer for a TERMTYPE structure (the terminal capability
structure in the <term.h>). This option is useful for preparing versions of the curses library hardwired for a
given terminal type.
-F compare terminfo files. This assumes that two following arguments are filenames. The files are searched for pair-
wise matches between entries, with two entries considered to match if any of their names do. The report printed to
standard output lists entries with no matches in the other file, and entries with more than one match. For entries
with exactly one match it includes a difference report. Normally, to reduce the volume of the report, use refer-
ences are not resolved before looking for differences, but resolution can be forced by also specifying -r.
-f Display complex terminfo strings which contain if/then/else/endif expressions indented for readability.
-G Display constant literals in decimal form rather than their character equivalents.
-g Display constant character literals in quoted form rather than their decimal equivalents.
-i Analyze the initialization (is1, is2, is3), and reset (rs1, rs2, rs3), strings in the entry. For each string, the
code tries to analyze it into actions in terms of the other capabilities in the entry, certain X3.64/ISO
6429/ECMA-48 capabilities, and certain DEC VT-series private modes (the set of recognized special sequences has been
selected for completeness over the existing terminfo database). Each report line consists of the capability name,
followed by a colon and space, followed by a printable expansion of the capability string with sections matching
recognized actions translated into {}-bracketed descriptions. Here is a list of the DEC/ANSI special sequences rec-
ognized: i.
Action Meaning
-----------------------------------------
RIS full reset
SC save cursor
RC restore cursor
LL home-down
RSR reset scroll region
-----------------------------------------
DECSTR soft reset (VT320)
S7C1T 7-bit controls (VT220)
-----------------------------------------
ISO DEC G0 enable DEC graphics for G0
ISO UK G0 enable UK chars for G0
ISO US G0 enable US chars for G0
ISO DEC G1 enable DEC graphics for G1
ISO UK G1 enable UK chars for G1
ISO US G1 enable US chars for G1
-----------------------------------------
DECPAM application keypad mode
DECPNM normal keypad mode
DECANSI enter ANSI mode
-----------------------------------------
ECMA[+-]AM keyboard action mode
ECMA[+-]IRM insert replace mode
ECMA[+-]SRM send receive mode
ECMA[+-]LNM linefeed mode
-----------------------------------------
DEC[+-]CKM application cursor keys
DEC[+-]ANM set VT52 mode
DEC[+-]COLM 132-column mode
DEC[+-]SCLM smooth scroll
DEC[+-]SCNM reverse video mode
DEC[+-]OM origin mode
DEC[+-]AWM wraparound mode
DEC[+-]ARM auto-repeat mode
It also recognizes a SGR action corresponding to ANSI/ISO 6429/ECMA Set Graphics Rendition, with the values NORMAL,
BOLD, UNDERLINE, BLINK, and REVERSE. All but NORMAL may be prefixed with `+' (turn on) or `-' (turn off).
An SGR0 designates an empty highlight sequence (equivalent to {SGR:NORMAL}).
-l Set output format to terminfo.
-p Ignore padding specifications when comparing strings.
-q Make the comparison listing shorter by omitting subheadings, and using "-" for absent capabilities, "@" for canceled
rather than "NULL".
-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 do not support the full set of SVR4/XSI Curses terminfo; and variants such as AIX that have
their own extensions incompatible with SVr4/XSI. Available terminfo subsets are "SVr1", "Ultrix", "HP", and "AIX";
see terminfo(5) for details. You can also choose the subset "BSD" which selects only capabilities with termcap
equivalents recognized by 4.4BSD.
-s [d|i|l|c]
The -s option sorts the fields within each type according 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 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 sorting to be done by the termcap name or the
long C variable name, respectively.
-T eliminates size-restrictions on the generated text. This is mainly useful for testing and analysis, since the com-
piled descriptions are limited (e.g., 1023 for termcap, 4096 for terminfo).
-t tells tic to discard commented-out capabilities. Normally when translating from terminfo to termcap, untranslatable
capabilities are commented-out.
-U tells infocmp to not post-process the data after parsing the source file. This feature helps when comparing the
actual contents of two source files, since it excludes the inferences that infocmp makes to fill in missing data.
-V reports the version of ncurses which was used in this program, and exits.
-v n prints out tracing information on standard error as the program runs. Higher values of n induce greater verbosity.
-w width
changes the output to width characters.
-x print information for user-defined capabilities. These are extensions to the terminfo repertoire which can be
loaded using the -x option of tic.
FILES
/usr/share/terminfo Compiled terminal description database.
EXTENSIONS
The -E, -F, -G, -R, -T, -V, -a, -e, -f, -g, -i, -l, -p, -q and -t options are not supported in SVr4 curses.
The -r option's notion of `termcap' capabilities is System V Release 4's. Actual BSD curses versions will have a more
restricted set. To see only the 4.4BSD set, use -r -RBSD.
BUGS
The -F option of infocmp(1M) should be a toe(1M) mode.
SEE ALSO
captoinfo(1M), infotocap(1M), tic(1M), toe(1M), curses(3X), terminfo(5).
This describes ncurses version 5.7 (patch 20100703).
AUTHOR
Eric S. Raymond <esrATsnark.com> and
Thomas E. Dickey <dickeyATinvisible-island.net>
infocmp(1M)
