vis

a vi-like editor based on Plan 9's structural regular expressions
vis-digraph.1

(1231B)
      1 .Dd January 27, 2017
      2 .Dt VIS-DIGRAPH 1
      3 .Os Vis VERSION
      4 .Sh NAME
      5 .Nm vis-digraph
      6 .Nd print Unicode character using mnemonics
      7 .
      8 .Sh SYNOPSIS
      9 .
     10 .Nm
     11 .Ar digraph ...
     12 .
     13 .Nm
     14 .Fl
     15 .
     16 .Sh DESCRIPTION
     17 .
     18 .Nm vis-digraph
     19 read a digraph from command line argument or standard input and print
     20 a corresponding Unicode character to standard output, encoded in current
     21 locale.
     22 .
     23 .Bl -tag -width 8
     24 .It Ar digraph
     25 A set of two (or more) characters that get replaced by a single Unicode
     26 character.
     27 .It Fl
     28 Read digraph from standard input.
     29 .El
     30 .Pp
     31 Without argument,
     32 .Nm
     33 displays all available digraphs along with a description.
     34 .
     35 .Sh ENVIRONMENT
     36 .
     37 .Bl -tag -width 8
     38 .
     39 .It Ev LC_CTYPE
     40 Locale definition, setting the encoding format of the Unicode character printed out.
     41 See
     42 .Xr locale 1
     43 for more information.
     44 .El
     45 .
     46 .Sh EXIT STATUS
     47 .
     48 .Bl -tag -width 4
     49 .It 0
     50 Digraph correctly read recognised and printed out.
     51 .It 1
     52 Digraph not recognised.
     53 .It 2
     54 Digraph is the beginning of an existing digraph, but does not correspond to a full digraph.
     55 .It 3
     56 An error occurred and digraph could not be read or printed.
     57 .El
     58 .
     59 .Sh SEE ALSO
     60 .
     61 .Xr locale 1 ,
     62 .Xr vis 1
     63 .
     64 .Sh STANDARDS
     65 .
     66 .Nm
     67 follows the digraph format from
     68 .Lk http://tools.ietf.org/rfc/rfc1345.txt "RFC 1345"