[plt-scheme] world.ss ke=?

From: Marco Morazan (morazanm at gmail.com)
Date: Thu Oct 9 00:28:18 EDT 2008

Dear All,

In the world.ss documentation I see:

(ke=? x y) → boolean?

  x : key-event?

  y : key-event?

compares two KeyEvent for equality

DrScheme, however, complains about referencing an identifier before
its definition:

> ke=?
reference to an identifier before its definition: ke=?

The world.ss teachpack has been added. Has ke=? been renamed? If so,
what is it called now? If not, a combination of char?, char=?,
symbol?, and symbol=? works, but is much more cumbersome. Any pointers
will be appreciated.




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