Description

Default Options

Comparison Options [-d] [-c] [-n]

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]

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 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	%iq	ANSI standard, vt100
%p1%?%’x’%>%t%p1%’y’%+%;	%>xy	concept
%p2 is printed before %p1	%r	hp

Use= Option [-u]

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 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.

Changing Databases [-A directory] [-B directory]

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 prefixing 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 pairwise 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 references 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 recognized: 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() 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 compiled 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

Compiled terminal description database.

Extensions

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

See Also

This describes ncurses version 5.9 (patch 20110404).

Author

Table of Contents

• Name
• Synopsis
• Description
• Default Options
• Comparison Options [-d] [-c] [-n]
• Source Listing Options [-I] [-L] [-C] [-r]
• Use= Option [-u]
• Changing Databases [-A directory] [-B directory]
• Other Options
• Files
• Extensions
• Bugs
• See Also
• Author