.Dd January 27, 2017
.Dt VIS-DIGRAPH 1
.Os Vis v0.7
.Sh NAME
.Nm vis-digraph
.Nd print Unicode character using mnemonics
.
.Sh SYNOPSIS
.
.Nm
.Ar digraph ...
.
.Nm
.Fl
.
.Sh DESCRIPTION
.
.Nm vis-digraph
read a digraph from command line argument or standard input and print
a corresponding Unicode character to standard output, encoded in current
locale.
.
.Bl -tag -width 8
.It Ar digraph
A set of two (or more) characters that get replaced by a single Unicode
character.
.It Fl
Read digraph from standard input.
.El
.Pp
Without argument,
.Nm
displays all available digraphs along with a description.
.
.Sh ENVIRONMENT
.
.Bl -tag -width 8
.
.It Ev LC_CTYPE
Locale definition, setting the encoding format of the Unicode character printed out.
See
.Xr locale 1
for more information.
.El
.
.Sh EXIT STATUS
.
.Bl -tag -width 4
.It 0
Digraph correctly read recognised and printed out.
.It 1
Digraph not recognised.
.It 2
Digraph is the beginning of an existing digraph, but does not correspond to a full digraph.
.It 3
An error occurred and digraph could not be read or printed.
.El
.
.Sh SEE ALSO
.
.Xr locale 1 ,
.Xr vis 1
.
.Sh STANDARDS
.
.Nm
follows the digraph format from
.Lk http://tools.ietf.org/rfc/rfc1345.txt "RFC 1345"