photoprism/internal/util/keywords.go

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package util
import (
"regexp"
"strings"
)
var KeywordsRegexp = regexp.MustCompile("[\\p{L}]{3,}")
func Keywords(s string) (results []string) {
all := KeywordsRegexp.FindAllString(s, -1)
for _, w := range all {
w = strings.ToLower(w)
if _, ok := Stopwords[w]; ok == false {
results = append(results, w)
}
}
return results
}