On Dec 27, 2007, at 8:30 AM, Eric Wang wrote:
=======
Summary
=======
[6.1p8]
(read) quietly reads a variable-like lexeme "?x" from a text file,
and returns an atom "?x", without ever trying to evaluate it as a
Jess variable.
[7.1b1]
(read) throws "No such variable x" in Context.getVariable().
(explode$) converts a string "?x" to gibberish like "^B".
The change to the parser was to support "dotted variables" in Jess
7.1. You can
use syntax like ?x.y to refer to the slot named "y" if ?x is a fact,
or a member
variable or method in the object ?x, if ?x is some other kind of object.
The change in behavior to "read" here is accidental; thanks for
reporting it,
and it will be fixed for 7.1 final.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 [EMAIL PROTECTED]
Livermore, CA 94550 http://www.jessrules.com
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