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MiniRobotLanguage (MRL)
IFC. Conditional Statement
If Fuzzy Compare
Intention
Conditional Statement.
Test if a specified string evaluates true with a given other String. having regard to one of two alternative fuzzy logic algorithm.
IFC. in Mode 1 uses a percentage from 0 to 100.
IFC. in Mode 2 (use P4, "m"-Flag) uses a maximum error number starting from 0.
In both modes, you will find the internally calculated "Match-value" on TOS.
' Example that will NOT match
' change the percentaqe value so that it will match.
'
$$TXB=ABCDEFGHIJK
$$TXA=ABCDEFGH
IFC.$$TXA|$$TXB|90
DBV.Yes, we match.
ELS.
DBP. This matches only to $$000 percent.
EIF.
ENR.
In Mode 2 we deal with "typing errors". Take this example:
$$TXB=ABCDEFGHIJK
$$TXA=ABCEFGHK
IFC.$$TXA|$$TXB|2|m
DBV.Yes, we match.
ELS.
DBP. This matches only to $$000 errors.
EIF.
ENR.
Note that a missing or deleted char is always one typing error.
Using algo 2, you will always find the internally calculated number of typing errors on the TOS.
NWC. is the negative Form of this statement.
Syntax
IFC.P1|P2|P3 … ELS. … EIF.
Parameter Explanation
P1 - Variable A to compare
P2 - Variable B to compare
P3 - numerical argument, depends on used algorithm.
P4 - (optional) can be omitted or can be "m". In that case
another algorithm is used to compare P1 and P2.
In detail the difference is:
- Algorithm 1 (no "m"-Flag):
P3 is a percentage number from 0% to 100%.
If Algorithm 1 is chosen, then
P1 must match P2 for the given percentage.
- Algorithm 2 ("m"-Flag, P4 is used):
P3 is a maximum error number, similar to wrong letter,
or missing letter.
If Algorithm 2 is chosen, then
P1 must match P2 taking into account the given
maximum number of "typing errors".
IFC.'s can be nested to unlimited Depth, and they can also enclose Sub-Programm Calls or FEX. (Enumerations) to unlimited Depth.
Example
'***********************************
' IWC.-Test, Algo 1
'***********************************
$$TXB=ABCDEFGHIJK
$$TXA=ABCDEFGH
IFC.$$TXA|$$TXB|90
DBV.Yes, we match.
ELS.
DBP. This matches only to $$000 percent.
EIF.
ENR.
'***********************************
' IWC.-Test, Algo 1
'***********************************
' Will match to 90%
$$TXB=ABCDEFGHIJK
$$TXA=ABCDEFGHI
IFC.$$TXA|$$TXB|90
DBV.Yes, we match.
EIF.
'***********************************
' IWC.-Test, Algo 2
'***********************************
'
' This will NOT match
$$TXB=ABCDEFGHIJK
$$TXA=ABCEFGHK
IFC.$$TXA|$$TXB|2|m
DBV.Yes, we match.
ELS.
DBP. This matches only to $$000 errors.
EIF.
ENR.
Remarks
-
Limitations:
-
See also:
• IVP./ NVP. - If-Variable-Pattern
• IVC. / NVC. - If-Variable-Contains
• CAL. - mathematical CALculation
• IVV. / NVV. - If Variable Value