feat:validate tags with reserved words(#14)

ssx/reserved.go

@@ -0,0 +1,27 @@
+package ssx
+
+var (
+	// Reference: https://github.com/vimiix/ssx/issues/14
+	reservedWords = []string{
+		"l", "ls", "list",
+		"t", "tag",
+		"d", "del", "delete",
+		"a", "add",
+		"i", "info",
+		"u", "update",
+		"cp", "scp",
+		"stats", "top", "share",
+		"ssx",
+	}
+	reservedWordsMap = map[string]bool{}
+)
+
+func init() {
+	for _, word := range reservedWords {
+		reservedWordsMap[word] = true
+	}
+}
+
+func isReservedWord(word string) bool {
+	return reservedWordsMap[word]
+}

ssx/ssx.go

@@ -481,6 +481,17 @@ func (s *SSX) AppendTagByID(id int, tags ...string) error {
 	if len(tags) == 0 {
 		return nil
 	}
+	var reserved []string
+	for _, tag := range tags {
+		if isReservedWord(tag) {
+			reserved = append(reserved, tag)
+		}
+	}
+	if len(reserved) > 0 {
+		return fmt.Errorf("can not contain reserved words: %s\nsee also %s",
+			reserved, "https://github.com/vimiix/ssx/issues/14")
+	}
+
 	em, err := s.repo.GetAllEntries()
 	if err != nil {
 		return err