improved regex for filtering out symbols in tags

Author: lkramer

add.go

@@ -47,7 +47,7 @@ func addNote(args []string) (err error) {
 		// Arguments prefixed by + are tags
 		if arg[0] == '+' {
 			tag := arg[1:]
-			if regexp.MustCompile(`^[^\W_]+$`).MatchString(tag) == false {
+			if regexp.MustCompile(`^[\pL0-9]+$`).MatchString(tag) == false {
 				fmt.Println("Error: Tags must be alphanumeric")
 				return
 			}

types.go

@@ -336,7 +336,7 @@ func (n Note) MatchesFilter(filter NoteFilter) (ret bool, err error) {
 // the single tag is skipped, but the other tags are added
 func (n *Note) AddTags(t []string) error {
 	for _, v := range t {
-		if regexp.MustCompile(`^[^\W_]+$`).MatchString(v) == false {
+		if regexp.MustCompile(`^[\pL0-9]+$`).MatchString(v) == false {
 			return fmt.Errorf("Error: Tags must be alphanumeric")
 		}