blob: b5bfc0c70c43c3b825a09a5464332b42e2d27a29 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package model
import (
"regexp"
"strings"
)
var atMentionRegexp = regexp.MustCompile(`\B@[[:alnum:]][[:alnum:]\.\-_:]*`)
const usernameSpecialChars = ".-_"
// PossibleAtMentions returns all substrings in message that look like valid @
// mentions.
func PossibleAtMentions(message string) []string {
var names []string
if !strings.Contains(message, "@") {
return names
}
alreadyMentioned := make(map[string]bool)
for _, match := range atMentionRegexp.FindAllString(message, -1) {
name := NormalizeUsername(match[1:])
if !alreadyMentioned[name] && IsValidUsernameAllowRemote(name) {
names = append(names, name)
alreadyMentioned[name] = true
}
}
return names
}
// TrimUsernameSpecialChar tries to remove the last character from word if it
// is a special character for usernames (dot, dash or underscore). If not, it
// returns the same string.
func TrimUsernameSpecialChar(word string) (string, bool) {
len := len(word)
if len > 0 && strings.LastIndexAny(word, usernameSpecialChars) == (len-1) {
return word[:len-1], true
}
return word, false
}
|
