func newDoubleArrayTrieFile(a_file *os.File) (Trie, error) {
da := da.NewDoubleArray()
scanner := bufio.NewScanner(a_file)
keywords := make([]string, 0, 51200)
for scanner.Scan() {
keywords = append(keywords, scanner.Text())
}
da.Build(keywords)
return da, scanner.Err()
}
func NewDoubleArrayTrie(a_src interface{}) (Trie, error) {
switch a_src.(type) {
case []string:
return newDoubleArrayTrieKeywords(a_src.([]string)), nil
case *os.File:
return newDoubleArrayTrieFile(a_src.(*os.File))
default:
return da.NewDoubleArray(), errors.New("cannot open unknown type src, '[]string' or '*os.File' can be specified.")
}
}
func newDoubleArrayTrieKeywords(a_keywords []string) Trie {
sort.Strings(a_keywords)
da := da.NewDoubleArray()
da.Build(a_keywords)
return da
}