Re: JESS: Comparing string
Jess doesn't have an explicit else-if feature; if you put an if into the else of another if, then that second if is a separate function call, so it needs its own parentheses. If I may, I will point out a few other things here: You don't need to spell out the names of any classes in java.lang, as it's implicitly imported, just as in Java. Second, you don't actually need to construct Strings at all; you can call Java String methods on Jess strings. Third, you can (and should) always omit call when calling a Java instance method; it's really only needed when you're invoking a static method. So you could clean your function up like this: (deffunction compare-comptment-function(?s1 ?s2) (if (eq ?s1 ?s2) then (return FFF) else (if (?s1 contains ?s2) then (printout t COMES 1 crlf) (return ?s1) else (if (?s2 contains ?s1) then (printout t COMES 2 crlf) (return ?s2) else (printout t COMES 3 crlf) (return (str-cat ?s1 , ?s2)) I think Amit Jain wrote: [Charset iso-8859-1 unsupported, filtering to ASCII...] Hi all I'm trying to compare two strings (deffunction compare-comptment-function(?s1 ?s2) (bind ?str-buff1 (new java.lang.String ?s1)) (bind ?str-buff2 (new java.lang.String ?s2)) (if (eq ?s1 ?s2) then (return FFF) else if (call ?str-buff1 contains ?str-buff2) then (printout t COMES 1 crlf) (return ?s1) else if (call ?str-buff2 contains ?str-buff1) then (printout t COMES 2 crlf) (return ?s2) else (printout t COMES 3 crlf) (return (str-cat ?s1 , ?s2 SO when i call (compare-comptment-function CSEE CS) it should return COMES 1 CSEE (compare-comptment-function CSE CSEEE) it should return COMES 2 CSEEE and (compare-comptment-function AE CSE) it should return COMES 3 AE,CSE but it keeps going into first elseif loop in all the cases. please tell me what i'm doing wrong. thanks for the help. -amit - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National LabsFAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED]
Re: JESS: Comparing string
worked like charm. thanks -amit On 9/9/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Jess doesn't have an explicit else-if feature; if you put an if into the else of another if, then that second if is a separate function call, so it needs its own parentheses. If I may, I will point out a few other things here: You don't need to spell out the names of any classes in java.lang, as it's implicitly imported, just as in Java. Second, you don't actually need to construct Strings at all; you can call Java String methods on Jess strings. Third, you can (and should) always omit call when calling a Java instance method; it's really only needed when you're invoking a static method. So you could clean your function up like this: (deffunction compare-comptment-function(?s1 ?s2) (if (eq ?s1 ?s2) then (return FFF) else (if (?s1 contains ?s2) then (printout t COMES 1 crlf) (return ?s1) else (if (?s2 contains ?s1) then (printout t COMES 2 crlf) (return ?s2) else (printout t COMES 3 crlf) (return (str-cat ?s1 , ?s2)) I think Amit Jain wrote: [Charset iso-8859-1 unsupported, filtering to ASCII...] Hi all I'm trying to compare two strings (deffunction compare-comptment-function(?s1 ?s2) (bind ?str-buff1 (new java.lang.String ?s1)) (bind ?str-buff2 (new java.lang.String ?s2)) (if (eq ?s1 ?s2) then (return FFF) else if (call ?str-buff1 contains ?str-buff2) then (printout t COMES 1 crlf) (return ?s1) else if (call ?str-buff2 contains ?str-buff1) then (printout t COMES 2 crlf) (return ?s2) else (printout t COMES 3 crlf) (return (str-cat ?s1 , ?s2 SO when i call (compare-comptment-function CSEE CS) it should return COMES 1 CSEE (compare-comptment-function CSE CSEEE) it should return COMES 2 CSEEE and (compare-comptment-function AE CSE) it should return COMES 3 AE,CSE but it keeps going into first elseif loop in all the cases. please tell me what i'm doing wrong. thanks for the help. -amit - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National Labs FAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED]
Re: JESS: Pattern Binding for CE
I think Krasnigor, Scott L (N-AST) wrote: I have an ID slot defined for the Bean object used to define the facts but can't seem to figure out how to get the fact that triggered the rule so I can modify it for this particular case (all my other rules allow pattern binding). I formatted your rule to make it easier to understand. (defrule doctrine-untripped ;; sets qualDoctrine to FALSE if any check flags are FALSE ?docFact - (or (and (testTrkClass (qualRng FALSE)) (testTrkClass (qualDoctrine ~FALSE))) (and (testTrkClass (qualBrg FALSE)) (testTrkClass (qualDoctrine ~FALSE = (modify ?docFact (qualDoctrine FALSE))) So the or has two branches, each of which is an and. Those ands, in turn, each match two facts (the two could, in fact, be the same one, or they could be different.) Based on your comment, and on your problem description, my guess is that you didn't realize that, and you intend the and to simply group together multiple tests on the same fact. It doesn't work that way: you should write all the tests for a single fact in a single pattern, or else the rule can match bits and pieces from multiple facts. So really I think you mean (defrule doctrine-untripped ;; sets qualDoctrine to FALSE if any check flags are FALSE ?docFact - (or (testTrkClass (qualRng FALSE) (qualDoctrine ~FALSE)) (testTrkClass (qualBrg FALSE) (qualDoctrine ~FALSE)) = (modify ?docFact (qualDoctrine FALSE))) Because each branch of the or matches a single branch, the pattern binding is OK. - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National LabsFAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED]
