1 files changed, 34 insertions, 0 deletions
diff --git a/crates/whirl_prompt/src/builtins/structures.rs b/crates/whirl_prompt/src/builtins/structures.rs
new file mode 100644
index 0000000..4217a38
--- /dev/null
+++ b/crates/whirl_prompt/src/builtins/structures.rs
@@ -0,0 +1,34 @@
+// Copyleft (ɔ) 2021-2021 The Whirlsplash Collective
+// SPDX-License-Identifier: GPL-3.0-only
+
+use std::str::FromStr;
+
+pub enum BuiltIn {
+  Echo,
+  History,
+  Exit,
+  Null,
+  Help,
+  Ls,
+  Cat,
+  Config,
+  Fetch,
+}
+impl FromStr for BuiltIn {
+  type Err = ();
+
+  fn from_str(s: &str) -> Result<Self, Self::Err> {
+    match s {
+      "echo" => Ok(BuiltIn::Echo),
+      "history" => Ok(BuiltIn::History),
+      "exit" => Ok(BuiltIn::Exit),
+      "null" => Ok(BuiltIn::Null),
+      "help" => Ok(BuiltIn::Help),
+      "ls" => Ok(BuiltIn::Ls),
+      "cat" => Ok(BuiltIn::Cat),
+      "config" => Ok(BuiltIn::Config),
+      "fetch" => Ok(BuiltIn::Fetch),
+      _ => Err(()),
+    }
+  }
+}