Lua: all steps and self-hosting.

Also some misc docs/TODO updates.

1 files changed, 26 insertions, 0 deletions

diff --git a/lua/readline.lua b/lua/readline.lua
new file mode 100644
index 0000000..a75f4ff
--- /dev/null
+++ b/lua/readline.lua
@@ -0,0 +1,26 @@
+local LN = require('linenoise')
+
+local M = {}
+
+local history_loaded = false
+local history_file = os.getenv("HOME") .. "/.mal-history"
+
+function M.readline(prompt)
+    if not history_loaded then
+        history_loaded = true
+        for line in io.lines(history_file) do
+            LN.historyadd(line)
+        end
+    end
+
+    line = LN.linenoise(prompt)
+    if line then
+        LN.historyadd(line)
+        local f = io.open(history_file, "a")
+        f:write(line.."\n")
+        f:close()
+    end
+    return line
+end
+
+return M