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Link hashtag bug (#121)

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* link + hashtag bug

* remove printlns

* tidy up some duplicated code
This commit is contained in:
Tobi Smethurst 2021-07-29 13:18:22 +02:00 • committed by GitHub
commit a940a520d3
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15 changed files with 349 additions and 97 deletions
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17
internal/util/regexes.go
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@ -30,25 +30,26 @@ const (
)
var (
mentionNameRegexString = `^@([a-zA-Z0-9_]+)(?:@([a-zA-Z0-9_\-\.]+)?)$`
mentionNameRegexString = `^@(\w+)(?:@([a-zA-Z0-9_\-\.]+)?)$`
// mention name regex captures the username and domain part from a mention string
// such as @whatever_user@example.org, returning whatever_user and example.org (without the @ symbols)
mentionNameRegex = regexp.MustCompile(mentionNameRegexString)
// mention regex can be played around with here: https://regex101.com/r/qwM9D3/1
mentionFinderRegexString = `(?: |^|\W)(@[a-zA-Z0-9_]+(?:@[a-zA-Z0-9_\-\.]+)?)(?:[^a-zA-Z0-9]|\W|$)?`
mentionFinderRegexString = `(?:\B)(@\w+(?:@[a-zA-Z0-9_\-\.]+)?)(?:\B)?`
mentionFinderRegex = regexp.MustCompile(mentionFinderRegexString)
// hashtag regex can be played with here: https://regex101.com/r/Vhy8pg/1
hashtagFinderRegexString = fmt.Sprintf(`(?:\b)?#(\w{1,%d})(?:\b)`, maximumHashtagLength)
hashtagFinderRegex = regexp.MustCompile(hashtagFinderRegexString)
// hashtag regex can be played with here: https://regex101.com/r/bPxeca/1
hashtagFinderRegexString = fmt.Sprintf(`(?:^|\n|\s)(#[a-zA-Z0-9]{1,%d})(?:\b)`, maximumHashtagLength)
// HashtagFinderRegex finds possible hashtags in a string.
// It returns just the string part of the hashtag, not the # symbol.
HashtagFinderRegex = regexp.MustCompile(hashtagFinderRegexString)
// emoji shortcode regex can be played with here: https://regex101.com/r/zMDRaG/1
emojiShortcodeRegexString = fmt.Sprintf(`[a-z0-9_]{2,%d}`, maximumEmojiShortcodeLength)
emojiShortcodeRegexString = fmt.Sprintf(`\w{2,%d}`, maximumEmojiShortcodeLength)
emojiShortcodeValidationRegex = regexp.MustCompile(fmt.Sprintf("^%s$", emojiShortcodeRegexString))
// emoji regex can be played with here: https://regex101.com/r/478XGM/1
emojiFinderRegexString = fmt.Sprintf(`(?: |^|\W)?:(%s):(?:\b|\r)?`, emojiShortcodeRegexString)
emojiFinderRegexString = fmt.Sprintf(`(?:\B)?:(%s):(?:\B)?`, emojiShortcodeRegexString)
emojiFinderRegex = regexp.MustCompile(emojiFinderRegexString)
// usernameRegexString defines an acceptable username on this instance