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?

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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 characters. 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 command 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 processing.

              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   Trackers
       [http://core.tcl.tk/tcllib/reportlist].  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>