added basic method to check syntax command input

src/args.rs

@@ -0,0 +1,11 @@
+use std::path::PathBuf;
+
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+pub struct Args {
+    pub text: String,
+    #[arg(long)]
+    pub debug_tokens: bool,
+}