CODEWITHSUNDEEP
prologsubstringmatch
Cho Sinhee
Cho Sinhee

Reputation: 59

How can I match two strings by using substring in PROLOG?

I have been developing expert system as a term project. And in the expert system, I am trying to make a function that will compare two strings including its substring. for example, it will be like:

let's say there's A = 'health_care', B = 'healthy_food'. Because there's a partially matched string, 'health', it will result in 'true'.

I have tried to find some functions related to it, I could not find anything. If you have some ideas or specific solutions, it will be highly appreciated.

Upvotes: 0

Views: 1673

Answers (1)

Christian Fritz
Christian Fritz

Reputation: 21374

Google: "prolog substring" gives this:

http://www.swi-prolog.org/pldoc/man?predicate=sub_string/5

You can use this to solve your problem like this. Increase the condition on L if you want to only admit longer sub-strings:

sub_string('testing', B, L, A, Sub),
sub_string('tester', B2, L, A2, Sub),
L > 3.

Upvotes: 2

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