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// Copyright (C) 2021-2021 The Whirlsplash Collective
// SPDX-License-Identifier: GPL-3.0-only
package utilities
import "unicode/utf8"
// https://stackoverflow.com/a/43461796/14452787
//
// I cannot explain the joy that flew through me once I found this ISO-8859-1
// (Latin-1) to UTF-8 converter. I was looking for a valid solution on how to
// insert the username and password into a hex-escaped string sequence for
// EncodeSessionInitialization for hours and this finally solved all of my
// problems.
func ISO88591ToString(iso string) string {
var utf []rune
for i := 0; i < len(iso); i++ {
r := iso[i]
if utf == nil {
if r < utf8.RuneSelf {
continue
}
utf = make([]rune, len(iso))
for j, r := range iso[:i] {
utf[j] = rune(r)
}
}
utf[i] = rune(r)
}
if utf == nil {
return string(iso)
}
return string(utf)
}
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