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+======Synopsis:======
+__input_char__ [-noecho] "<prompt>" {<stuff>}
+======Description:======
+This command prompts the user to type ONE character and then runs the
+<stuff> and $* will be the user's response.
+The -noecho option will suppress the outputting of the character to the
+input line as it is typed.
+The $'...' expando is a wrapper around __INPUT_CHAR__ in case you were
+wondering.  It's always better to use __INPUT_CHAR__ than $'...' if you
+can arrange it because it operates asynchronously, which means it plays
+nicely with other commands.
+======Examples:======
+      input_char "Press 'q' to quit, any other key to continue: " {
+         unless ( [$0] == [q] ) {
+            /* do whatever */
+         }
+      }
+======History:======
+The __INPUT_CHAR__ command first appeared in EPIC3.003.