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sort.go

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package cli

import "unicode"

// lexicographicLess compares strings alphabetically considering case.

func lexicographicLess(i, j string) bool {

iRunes := []rune(i)

jRunes := []rune(j)

lenShared := len(iRunes)

if lenShared > len(jRunes) {

lenShared = len(jRunes)

}

for index := 0; index < lenShared; index++ {

ir := iRunes[index]

jr := jRunes[index]

if lir, ljr := unicode.ToLower(ir), unicode.ToLower(jr); lir != ljr {

return lir < ljr

}

if ir != jr {

return ir < jr

}

}

return i < j

}