Strange behavior in translation of str-length function

[Руслан Сорокин]

Dear CLIPS users and team!

Strange behavior I noticed in translation of str-length function:

ru@ru-sitrol:~/clips/VRGoogleEarthView$ ./clips/clips
         CLIPS (6.4 2/9/21)
CLIPS> (deffunction test ()
(bind ?c "abbra caddabra")
(bind ?len (str-length ?с))
(if (and (neq ?c EOF)(eq (sub-string 1 2 ?c) "ab"))
then
(bind ?r (sub-string 3 4 ?c))))

[PRCCODE3] Undefined variable ?с referenced in deffunction.

ERROR:
(deffunction MAIN::test
   ()
   (bind ?c "abbra caddabra")
   (bind ?len (str-length ?с))
   (if (and (neq ?c EOF) (eq (sub-string 1 2 ?c) "ab"))
      then
      (bind ?r (sub-string 3 4 ?c)))
   )
CLIPS> (deffunction test ()
(bind ?c "abbra caddabra")
(bind ?len 5) ;(str-length ?с))
(if (and (neq ?c EOF)(eq (sub-string 1 2 ?c) "ab"))
then
(bind ?r (sub-string 3 4 ?c))))
CLIPS>

The presence of a function call causes an error.

Replacing the call with a constant eliminates the error!

Any comments would be great.
Sincerely,
  Ru

[CLIPS Support]

The name for the variable you're passing to the str-index function looks like a c, but it's not a c. When I copy and paste that character and compare it to a c I typed, the eq function returns FALSE. When I compare two c characters I've typed, it returns true.

         CLIPS (6.4.1 4/8/23)
CLIPS> (eq с c)
FALSE
CLIPS> (eq c c)
TRUE
CLIPS> 

[Alex Gian]

Russian lower case "Es" (0x1089)

The tribulations of those of us using dual keyboard maps!  So easy to do.

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[Руслан Сорокин]

Thank you  both very much! I suspected this and copied and pasted several times like Gary. But seems not enough :)

Sorry!

Sincerely,

  Ru

вторник, 12 ноября 2024 г. в 10:52:16 UTC+3, Alex Gian: