refactor: cleanup parse function

examples/convert.rs

@@ -0,0 +1,33 @@
+use std::env;
+use std::fs::File;
+use std::io::Cursor;
+use std::io::Read;
+
+use orgize::export::{HtmlHandler, Render};
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() < 2 {
+        println!("Usage: {} <org-file>", args[0]);
+        return;
+    }
+
+    let mut file = File::open(&args[1]).expect(&format!("file {} not found", &args[1]));
+
+    let mut contents = String::new();
+    file.read_to_string(&mut contents)
+        .expect("something went wrong reading the file");
+
+    let cursor = Cursor::new(Vec::new());
+    let handler = HtmlHandler;
+    let mut render = Render::new(handler, cursor, &contents);
+
+    render
+        .render()
+        .expect("something went wrong rendering the file");
+    println!(
+        "{}",
+        String::from_utf8(render.into_wirter().into_inner()).expect("invalid utf-8")
+    );
+}