61 lines
2.2 KiB
Go
61 lines
2.2 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package util
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import (
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"strings"
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"github.com/superseriousbusiness/gotosocial/internal/regexes"
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)
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// DeriveMentionNamesFromText takes a plaintext (ie., not html-formatted) text,
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// and applies a regex to it to return a deduplicated list of account names
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// mentioned in that text, in the format "@user@example.org" or "@username" for
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// local users.
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func DeriveMentionNamesFromText(text string) []string {
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mentionedAccounts := []string{}
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for _, m := range regexes.MentionFinder.FindAllStringSubmatch(text, -1) {
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mentionedAccounts = append(mentionedAccounts, m[1])
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}
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return UniqueStrings(mentionedAccounts)
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}
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// DeriveHashtagsFromText takes a plaintext (ie., not html-formatted) text,
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// and applies a regex to it to return a deduplicated list of hashtags
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// used in that text, without the leading #. The case of the returned
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// tags will be lowered, for consistency.
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func DeriveHashtagsFromText(text string) []string {
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tags := []string{}
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for _, m := range regexes.HashtagFinder.FindAllStringSubmatch(text, -1) {
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tags = append(tags, strings.TrimPrefix(m[1], "#"))
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}
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return UniqueStrings(tags)
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}
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// DeriveEmojisFromText takes a plaintext (ie., not html-formatted) text,
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// and applies a regex to it to return a deduplicated list of emojis
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// used in that text, without the surrounding `::`
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func DeriveEmojisFromText(text string) []string {
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emojis := []string{}
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for _, m := range regexes.EmojiFinder.FindAllStringSubmatch(text, -1) {
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emojis = append(emojis, m[1])
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}
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return UniqueStrings(emojis)
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}
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