happyDomain/internal/helpers/username.go

53 lines
1.6 KiB
Go

// This file is part of the happyDomain (R) project.
// Copyright (c) 2020-2024 happyDomain
// Authors: Pierre-Olivier Mercier, et al.
//
// This program is offered under a commercial and under the AGPL license.
// For commercial licensing, contact us at <contact@happydomain.org>.
//
// For AGPL licensing:
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package helpers
import (
"strings"
"unicode"
)
func GenUsername(email string) (toName string) {
if n := strings.Index(email, "+"); n > 0 {
toName = email[0:n]
} else {
toName = email[0:strings.Index(email, "@")]
}
if len(toName) > 1 {
toNameCopy := strings.ReplaceAll(toName, ".", " ")
toName = ""
lastRuneIsSpace := true
for _, runeValue := range toNameCopy {
if lastRuneIsSpace {
lastRuneIsSpace = false
toName += string(unicode.ToTitle(runeValue))
} else {
toName += string(runeValue)
}
if unicode.IsSpace(runeValue) || unicode.IsPunct(runeValue) || unicode.IsSymbol(runeValue) {
lastRuneIsSpace = true
}
}
}
return
}