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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 <http://www.gnu.org/licenses/>.
package util
import (
"unicode"
)
func IsPlausiblyInHashtag(r rune) bool {
// Marks are allowed during parsing, prior to normalization, but not after,
// since they may be combined into letters during normalization.
return unicode.IsLetter(r) || unicode.IsNumber(r) || unicode.IsMark(r)
}
func IsPermittedInHashtag(r rune) bool {
return unicode.IsLetter(r) || unicode.IsNumber(r)
}
// Decides where to break before or after a #hashtag or @mention
func IsMentionOrHashtagBoundary(r rune) bool {
return unicode.IsSpace(r) || unicode.IsPunct(r)
}
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