[fine] Beginning a binary

fine/src/main.rs

@@ -1 +1,37 @@
-pub fn main() {}
+use fine::parser::Parser;
+use std::env;
+use std::fs;
+
+pub fn process_file(file: &str) {
+    println!("{file}");
+    let source = match fs::read_to_string(file) {
+        Ok(c) => c,
+        Err(e) => {
+            eprintln!("Unable to read file {file}: {e}");
+            return;
+        }
+    };
+
+    let (mut tree, expr, lines) = Parser::new(&source).parse();
+    if tree.errors.len() > 0 {
+        for error in tree.errors {
+            eprintln!("{error}");
+        }
+        return;
+    }
+
+    let _expr_type = tree.expr_type(&expr, &lines, true);
+    if tree.errors.len() > 0 {
+        for error in tree.errors {
+            eprintln!("{error}");
+        }
+        return;
+    }
+}
+
+pub fn main() {
+    let args: Vec<String> = env::args().collect();
+    for arg in &args[1..] {
+        process_file(arg);
+    }
+}