Nevermind, I seem to have figured it out. I dont know what I did wrong, but this line works:
(retract-string (str-cat "(MAIN::triple (predicate " "\" http://www.semanticweb.org/ontologies/ImageEditor.owl#Pickable\""; ") (subject \"" ?tool1 "\") (object " "\"true\"" "))")) Perhaps I messed up some brackets or inverted commas before....or maybe it was the missing "MAIN::" in the head of my fact that I needed... Problem solved. /Chirag On 31/03/2008, Chirag Vesuvala <[EMAIL PROTECTED]> wrote: > > Hi all, > > I'm trying to retract a fact via the retract-string method. I need to use > the str-cat method to assemble my fact. The problem is that the slot values > of my fact have " " (double quotations) around them. str-cat is not > detecting that my \" should be interpreted as a " only. > > How do I make str-cat concatenate a string which already has "" marks in > it, so that it doesn't include the extra \ sign? See the example below if > this is way too confusing to understand. > > Yes, i am importing a .owl file developed in protege. > > (retract-string (str-cat > "(triple > (predicate \" > http://www.semanticweb.org/ontologies/ImageEditor.owl#Pickable\<http://www.semanticweb.org/ontologies/ImageEditor.owl#Pickable%5C> > ") > (subject \" " ?tool "\") <----------- notice the 2 \" on this line > (object \"false\"))" > ) > ) > > The fact in the working set looks like this: > (triple > (predicate " > http://www.semanticweb.org/ontologies/ImageEditor.owl#Pickable";) > (subject "myTool") <--------- This is how it should look. No \" > should be there. > (object "false") > ) > > > Thanks, > Chirag >
