Refactor string utilities into its own package str

utils/str/str.go

@@ -0,0 +1,46 @@
+package str
+
+import (
+	"strings"
+
+	"github.com/navidrome/navidrome/conf"
+)
+
+func Clear(name string) string {
+	r := strings.NewReplacer(
+		"–", "-",
+		"‐", "-",
+		"“", `"`,
+		"”", `"`,
+		"‘", `'`,
+		"’", `'`,
+	)
+	return r.Replace(name)
+}
+
+func NoArticle(name string) string {
+	articles := strings.Split(conf.Server.IgnoredArticles, " ")
+	for _, a := range articles {
+		n := strings.TrimPrefix(name, a+" ")
+		if n != name {
+			return n
+		}
+	}
+	return name
+}
+
+func LongestCommonPrefix(list []string) string {
+	if len(list) == 0 {
+		return ""
+	}
+
+	for l := 0; l < len(list[0]); l++ {
+		c := list[0][l]
+		for i := 1; i < len(list); i++ {
+			if l >= len(list[i]) || list[i][l] != c {
+				return list[i][0:l]
+			}
+		}
+	}
+	return list[0]
+}