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vimr/VimR/Scorer.swift
2016-09-05 23:15:46 +02:00

32 lines
773 B
Swift

/**
* Tae Won Ha - http://taewon.de - @hataewon
* See LICENSE
*/
import Foundation
class Scorer {
static func score(target: String, pattern: String) -> Float {
let wf = Matcher.wagnerFisherDistance(target, pattern: pattern)
// let fuzzy = Matcher.fuzzyIgnoringCase(target, pattern: pattern)
let upper = Matcher.numberOfUppercaseMatches(target, pattern: pattern)
let exactMatch = Matcher.exactMatchIgnoringCase(target, pattern: pattern)
let exactScore: Float
switch exactMatch {
case .none:
exactScore = 0
case .exact:
return 100
case .prefix, .contains, .suffix:
exactScore = 5
}
return (wf == 0 ? 0 : 5.0 / Float(wf))
// + Float(fuzzy.matches)
+ Float(upper)
+ exactScore
}
}