merge ot with rask

src/lib.rs

@@ -1,13 +1,27 @@
 // TODO: remove this eventually when there's an API
 #![allow(dead_code)]
 
+#[macro_use]
+extern crate failure;
+
 mod errors;
 mod operation;
 mod replica;
 mod server;
+mod task;
 mod taskdb;
+mod tdb2;
 
 pub use operation::Operation;
 pub use replica::Replica;
 pub use server::Server;
+pub use task::Task;
 pub use taskdb::DB;
+
+use failure::Fallible;
+use std::io::BufRead;
+
+// TODO: remove (artifact of merging projects)
+pub fn parse(filename: &str, reader: impl BufRead) -> Fallible<Vec<Task>> {
+    Ok(tdb2::parse(filename, reader)?)
+}