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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package model
import (
"regexp"
"strings"
)
var channelMentionRegexp = regexp.MustCompile(`\B~[a-zA-Z0-9\-_]+`)
func ChannelMentions(message string) []string {
var names []string
if strings.Contains(message, "~") {
alreadyMentioned := make(map[string]bool)
for _, match := range channelMentionRegexp.FindAllString(message, -1) {
name := match[1:]
if !alreadyMentioned[name] {
names = append(names, name)
alreadyMentioned[name] = true
}
}
}
return names
}
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