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infocmp(1M)							   infocmp(1M)

NAME
       infocmp - compare or print out terminfo descriptions

SYNOPSIS
       infocmp [-dcnpILCuV1] [-v n] [-s d| i| l| c]
	     [-w width] [-A directory] [-B directory] [termname...]

DESCRIPTION
       infocmp	can be used to compare a binary terminfo entry with other ter‐
       minfo 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 capa‐
       bility: F for boolean variables, -1 for integer variables, and NULL for
       string variables.

       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 simi‐
       lar 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 ter‐
       minal 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.	Manda‐
       tory  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 ter‐
       minfo 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 capabil‐
       ity, not all capabilities are output.  Mandatory padding	 is  not  sup‐
       ported.	 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]
       The -u option produces a terminfo source description of the first  ter‐
       minal  termname	which is relative to the sum of the descriptions given
       by the entries for the other terminals termnames.  It does this by ana‐
       lyzing  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 ter‐
       minfo compiler tic does a left-to-right scan of the capabilities, spec‐
       ifying  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] [-T] [-w width]
       The  -s option sorts the fields within each type according to the argu‐
       ment 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.

       -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.

       -p   Ignore padding specifications when comparing strings.

       -v n prints  out	 tracing  information on standard error as the program
	    runs.  Higher values of n induce greater verbosity.

       -V   prints out the version of the program in use on standard error and
	    exits.

       -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.

       -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 ter‐
	    minfo).

       -w   changes the output to width characters.

       -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  terminfo	 subsets   are
	    "SVr1",  "Ultrix",	"HP",  and "AIX"; see terminfo(5) for details.
	    You can also choose the subset "BSD" which selects only  capabili‐
	    ties with termcap equivalents recognized by 4.4BSD.

       -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.

   Changing Databases [-A directory] [-B directory]
       The location of the compiled terminfo database is taken from the	 envi‐
       ronment	variable  TERMINFO  .	If the variable is not defined, or the
       terminal is not found in that location, the system  terminfo  database,
       in  /usr/local/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.

       -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 recog‐
	    nized actions translated into {}-bracketed descriptions.  Here  is
	    a list of the DEC/ANSI special sequences recognized:

			 Action	       Meaning
			 ─────────────────────────────────────────
			 RIS	       full reset
			 SC	       save cursor
			 RC	       restore cursor
			 LL	       home-down
			 RSR	       reset scroll region

			 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

			 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}).

FILES
       /usr/local/share/terminfo
			   Compiled terminal description database.

EXTENSIONS
       The  -F	option	is  not	 supported  in	SVr4 curses.  (It is primarily
       intended to help infocmp's author, while wearing	 his  terminfo/termcap
       maintainer  hat, merge termcap/terminfo files from various sources into
       the master.)

       The -R, -p, -e, -T and -i 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
       infocmp(1M),   captoinfo(1M),	infotocap(1M),	  tic(1M),    toe(1M),
       curses(3X), terminfo(5).

AUTHOR
       Eric S. Raymond <esr@snark.thyrsus.com>

								   infocmp(1M)
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