From 5f94f3d439dc84fd32ce2ca75eaa867bf0668fc9 Mon Sep 17 00:00:00 2001
From: Case Duckworth
Date: Wed, 3 Apr 2024 23:34:46 -0500
Subject: Catch read errors

---
 repl.lua | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'repl.lua')

diff --git a/repl.lua b/repl.lua
index c2233c4..be739c7 100644
--- a/repl.lua
+++ b/repl.lua
@@ -39,12 +39,24 @@ function m.repl (prompt, infile, out)
 	if prompt then
 		stderr = io.open("/dev/stderr", "w") -- Linux-only !
 	end
-	while true do
+	while true do -- loop
 		if prompt then
 			stderr:write(prompt)
 			stderr:flush()
 		end
-		local x = read.read(inport)
+		-- read
+		local ok, x = xpcall(
+			function () return read.read(inport) end,
+			function (e)
+				local start = e:find(": ")
+				return e:sub(start+2)
+			end
+		)
+		if not ok then
+			print("(read) not ok: " .. x)
+			x = nil
+		end
+		-- eval
 		if x then
 			local ok, val =
 				xpcall(
@@ -55,8 +67,9 @@ function m.repl (prompt, infile, out)
 					end
 				)
 			if not ok then
-				print("not ok: " .. val)
+				print("(eval) not ok: " .. val)
 			elseif out ~= false then
+				-- print
 				schemeprint(val)
 			end
 		end
-- 
cgit 1.4.1-21-gabe81