statustools.go (1342B)
1 // GoToSocial 2 // Copyright (C) GoToSocial Authors admin@gotosocial.org 3 // SPDX-License-Identifier: AGPL-3.0-or-later 4 // 5 // This program is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU Affero General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU Affero General Public License for more details. 14 // 15 // You should have received a copy of the GNU Affero General Public License 16 // along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18 package util 19 20 import ( 21 "unicode" 22 ) 23 24 func IsPlausiblyInHashtag(r rune) bool { 25 // Marks are allowed during parsing, prior to normalization, but not after, 26 // since they may be combined into letters during normalization. 27 return unicode.IsLetter(r) || unicode.IsNumber(r) || unicode.IsMark(r) 28 } 29 30 func IsPermittedInHashtag(r rune) bool { 31 return unicode.IsLetter(r) || unicode.IsNumber(r) 32 } 33 34 // Decides where to break before or after a #hashtag or @mention 35 func IsMentionOrHashtagBoundary(r rune) bool { 36 return unicode.IsSpace(r) || unicode.IsPunct(r) 37 }