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| module Array = | |
| open System.Collections.Generic | |
| let toMap<'TItem when 'TItem : equality> array = | |
| let map = array |> Seq.fold (fun (map: Dictionary<'TItem, int>) ch -> | |
| if map.ContainsKey(ch) then | |
| map.[ch] <- map.[ch] + 1 | |
| else | |
| map.Add(ch, 1) | |
| map) (new Dictionary<'TItem, int>()) | |
| map | |
| let replaceExact (source: string) (find: string) (replace: string) = | |
| let pattern = String.Format(@"\b{0}\b", find); | |
| Regex.Replace(source, pattern, replace) | |
| let replaceDuplicates str = | |
| match str with | |
| | null | "" -> str | |
| | _ -> | |
| let inline replaceWithWhitespaces acc key = replaceExact acc key (String.replicate (String.length key) " "); | |
| str.Split(" ", StringSplitOptions.None) | |
| |> Array.toMap | |
| |> fun map -> map.Keys |> Array.ofSeq |> Array.filter (fun key -> map.[key] > 1) | |
| |> fun duplicates -> Array.fold replaceWithWhitespaces str duplicates |
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