13 lines
343 B
OCaml
13 lines
343 B
OCaml
let match2_num s1 s2 =
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let len1 = String.length s1
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and len2 = String.length s2 in
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if len1 < len2 then (false, 0) else
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let rec aux i n =
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if i < 0 then (n <> 0, n) else
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let sub = String.sub s1 i len2 in
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if (sub = s2)
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then aux (pred i) (succ n)
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else aux (pred i) (n)
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in
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aux (len1 - len2) 0
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