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term::receive(n)                              Terminal control                              term::receive(n)



____________________________________________________________________________________________________________

NAME
       term::receive - General input from terminals

SYNOPSIS
       package require Tcl  8.4

       package require term::receive  ?0.1?

       ::term::receive::getch ?chan?

       ::term::receive::listen cmd ?chan?

       cmd process string

       cmd eof

       ::term::receive::unlisten ?chan?

____________________________________________________________________________________________________________

DESCRIPTION
       This package provides the most primitive commands for receiving characters to a terminal. They are in
       essence convenient wrappers around the builtin commands read and fileevent.

       ::term::receive::getch ?chan?
              This command reads a single character from the channel with handle chan and returns it as  the
              result of the command.

              If not specified chan defaults to stdin.

              It  is the responsibility of the caller to make sure that the channel can provide single char-acters. characters.
              acters.  On  unix  this  can  be  done,  for  example,  by  using  the  command   of   package
              term::ansi::ctrl::unix.

       ::term::receive::listen cmd ?chan?
              This command sets up a filevent listener for the channel with handle chan and invokes the com-mand command
              mand prefix cmd whenever characters have been received, or EOF was reached.

              If not specified chan defaults to stdin.

              The signature of the command prefix is

              cmd process string
                     This method is invoked when characters were received, and string holds  them  for  pro-cessing. processing.
                     cessing.

              cmd eof
                     This  method  is  invoked when EOF was reached on the channel we listen on.  It will be
                     the last call to be received by the callback.

       ::term::receive::unlisten ?chan?
              This command disables the filevent listener for the channel with handle chan.

              If not specified chan defaults to stdin.


BUGS, IDEAS, FEEDBACK
       This document, and the package it describes,  will  undoubtedly  contain  bugs  and  other  problems.
       Please   report   such   in   the   category   term   of   the  Tcllib  SF  Trackers  [http://source -
       forge.net/tracker/? group_id=12883].  Please also report any ideas for enhancements you may  have  for
       either package and/or documentation.

KEYWORDS
       character input, control, get character, listener, receiver, terminal

CATEGORY
       Terminal control

COPYRIGHT
       Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>




term                                                 0.1                                    term::receive(n)