made getList save to file option & improved word_type checking

src/cli.rs

@@ -99,7 +99,6 @@ impl<'a> Command<'a> {
     /**
      * Adds arguments to the command
      */
-
     pub fn with_args(mut self, args: &Vec<Arg>) -> Command<'a> {
         if self.args.is_none() {
             self.args = Some(vec![]);

src/main.rs

@@ -181,26 +181,7 @@ fn main() {
             let display = command.has("display");
             let to = command.get_value_of("to");
 
-            if type_of_words != "english"
-                && type_of_words != "latin"
-                && type_of_words != "inflections"
-                && type_of_words != "inflection"
-                && type_of_words != "not_packons"
-                && type_of_words != "not_packon"
-                && type_of_words != "packon"
-                && type_of_words != "packons"
-                && type_of_words != "prefixes"
-                && type_of_words != "prefix"
-                && type_of_words != "stems"
-                && type_of_words != "stem"
-                && type_of_words != "suffixes"
-                && type_of_words != "suffix"
-                && type_of_words != "tackons"
-                && type_of_words != "tackon"
-                && type_of_words != "tickons"
-                && type_of_words != "tickon"
-                && type_of_words != "unique_latin"
-            {
+            if !WordType::is_valid_word_type(&type_of_words) {
                 println!(
                     "Invalid type of words. Please use `help` to see the available types of words."
                 );

src/use_data/mod.rs

@@ -58,6 +58,15 @@ impl WordType {
             _ => Err(format!("Invalid word type: {}", s)),
         }
     }
+
+    pub fn is_valid_word_type(s: &str) -> bool {
+        match s {
+            "english" | "latin" | "inflections" | "inflection" | "not_packons" | "not_packon"
+            | "packon" | "packons" | "prefixes" | "prefix" | "stems" | "stem" | "suffixes"
+            | "suffix" | "tackons" | "tackon" | "tickons" | "tickon" | "unique_latin" => true,
+            _ => false,
+        }
+    }
 }
 
 #[derive(Debug, Serialize)]
@@ -141,4 +150,10 @@ pub fn get_list(
     if display {
         println!("{}", serde_json::to_string_pretty(&list).unwrap());
     }
+
+    if to.is_some() {
+        let file_path = to.unwrap();
+        let file = std::fs::File::create(file_path).unwrap();
+        serde_json::to_writer_pretty(file, &list).unwrap();
+    }
 }