alex at mindlube.com
Mon Nov 10 16:52:03 CST 2003
In my revclips external, I pass strings and symbol names to the CLIPS
system, which is not as flexible as runrev with it's data types. In
CLIPS a string is:
"""A string is a set of characters that starts with a double quote (")
and is followed by zero or more printable characters. A string ends
with double quotes. Double quotes may be embedded within a string by
placing a backslash (\) in front of the character. A backslash may be
embedded by placing two consecutive backslash characters in the string.
Some examples are "foo" "a and b" "1 number"
I guess the "printable characters" is what's tripping me up. Sometimes
users will copy-paste in characters that Rev accepts just fine in a
text field, but CLIPS doesn't think they are OK as a string. I've fixed
the obvious problem characters like double quote.
CLIPS is an ANSI C program, originating probably in Unix or even
PDP/microcomputer days. Can anyone make a guess as to what printable
characters means in that context and a good transcript method to clean
strings for sending to CLIPS? Thanks,
Alex Rice <alex at mindlube.com> | Mindlube Software |
what a waste of thumbs that are opposable
to make machines that are disposable -Ani DiFranco
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