UnixDesignPatternsAdvanced < Training2

%SECTION0{name=UnixDesignPatternsAdvanced}% Advanced Unix Interface Design Patterns

some of the more important, there are more:

   * the _ed_ pattern
      * takes commands interactively
      * may emit outout
      * examples: ed(1), gnuplot(1), gdb(1)
      * can often read commands on =stdin=

   * the Roguelike Pattern (TUI pattern)
      * text based user interface
      * single stroke commands
      * many examples: top(1), mutt(1), gdbtui(1), watch(1), vi(1), lynx(1)

   * Driver/Engine pair
      * driver and engine interact via some IPC method
      * engine can run standalone
      * examples: ddd+gdb, gnomebaker+cdrecord

   * the CLI Server Pattern
      * standalone _source_ program
      * invoked by a harness program that changes _stdin_ and _stdout_
      * examples: xinetd/inetd (harness) and pop3, tftp, smtp,...

4.7.2. Simple Unix Interface Design Patterns		1. Denx Training Topics		4.7.4. Unix Inter Process Communication - Simple Techniques
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