( C: "<spaces>name"
Skip leading space delimiters. Parse name
delimited by a
space. Create a definition for name
, called a "colon
definition". Enter compilation state and start the current
definition, producing colon-sys
. Append the initiation
semantics given below to the current definition.
The execution semantics of name
will be determined by the
words compiled into the body of the definition. The current
definition shall not be findable in the dictionary until it is
ended (or until the execution of DOES>
in some systems).