Implement kludge to set options through Move Type-in

A leading "!!! " will cause the rest of the line to be parsed as
command line. Very dangerous, as an unknown option (e.g. because of a typo)
will cause a fatal error, which makes XBoard exit.

diff --git a/backend.c b/backend.c
index c85a2ac..c196662 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -15635,6 +15635,14 @@ TypeInDoneEvent (char *move)
          ToNrEvent(2*n-1);
          return;
        }
+       // undocumented kludge: allow command-line option to be typed in!
+       // (potentially fatal, and does not implement the effect of the option.)
+       // should only be used for options that are values on which future decisions will be made,
+       // and definitely not on options that would be used during initialization.
+       if(strstr(move, "!!! -") == move) {
+           ParseArgsFromString(move+4);
+           return;
+        }
 
       if (gameMode != EditGame && currentMove != forwardMostMove && 
        gameMode != Training) {