Add the basic rope.

1 files changed, 20 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index e7a11a9..5302d59 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,22 @@
+mod rope;
+
+use rope::Rope;
+use std::ffi::OsString;
+use std::path::Path;
+
 fn main() {
-    println!("Hello, world!");
+    let args: Vec<OsString> = std::env::args_os().collect();
+    if args.len() != 2 {
+        println!("Usage: edit <filename>");
+        std::process::exit(1);
+    }
+    let file = Path::new(&args[1]);
+    let r = match Rope::open(file) {
+        Ok(r) => r,
+        Err(err) => {
+            println!("FAIL: open file {}: {}", file.to_string_lossy(), err);
+            std::process::exit(1);
+        }
+    };
+    println!("{}", r);
 }