From 3c84d1fbdd5f017ddea60b5f89008843906902ea Mon Sep 17 00:00:00 2001
From: Reuh <fildadut@reuh.eu>
Date: Wed, 9 Jun 2021 13:43:52 +0200
Subject: [PATCH] Fix string.format errors on Lua 5.1 when using booleans or
 nil

---
 bin/can     | 2 +-
 bin/canc    | 2 +-
 candran.can | 4 ++--
 candran.lua | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/bin/can b/bin/can
index cad0270..8c4cdc7 100644
--- a/bin/can
+++ b/bin/can
@@ -15,7 +15,7 @@ if args.help or args.h then
 	print("Default options:")
 	for opt, val in pairs(candran.default) do
 		if type(val) == "string" then val = val:gsub("\n", "\\n") end
-		print(("  %s=%q"):format(opt, val))
+		print(("  %s=%q"):format(opt, tostring(val)))
 	end
 	return
 end
diff --git a/bin/canc b/bin/canc
index b87cb8f..32265ef 100644
--- a/bin/canc
+++ b/bin/canc
@@ -23,7 +23,7 @@ if #arg < 1 or args.help or args.h then
 	print("Default options:")
 	for opt, val in pairs(candran.default) do
 		if type(val) == "string" then val = val:gsub("\n", "\\n") end
-		print(("  %s=%q"):format(opt, val))
+		print(("  %s=%q"):format(opt, tostring(val)))
 	end
 	return
 end
diff --git a/candran.can b/candran.can
index 57f115d..aa34258 100644
--- a/candran.can
+++ b/candran.can
@@ -203,7 +203,7 @@ local codeCache = {}
 function candran.loadfile(filepath, env, options)
 	local f, err = io.open(filepath)
 	if not f then
-		return nil, "cannot open %s":format(err)
+		return nil, "cannot open %s":format(tostring(err))
 	end
 	local content = f:read("*a")
 	f:close()
@@ -321,7 +321,7 @@ function candran.searcher(modpath)
 		if r then
 			return r(modpath, filepath)
 		else
-			error("error loading candran module '%s' from file '%s':\n\t%s":format(modpath, filepath, s), 0)
+			error("error loading candran module '%s' from file '%s':\n\t%s":format(modpath, filepath, tostring(s)), 0)
 		end
 	end, filepath
 end
diff --git a/candran.lua b/candran.lua
index 51a26ad..4512e48 100644
--- a/candran.lua
+++ b/candran.lua
@@ -6541,7 +6541,7 @@ local codeCache = {} -- candran.can:200
 candran["loadfile"] = function(filepath, env, options) -- candran.can:203
 local f, err = io["open"](filepath) -- candran.can:204
 if not f then -- candran.can:205
-return nil, ("cannot open %s"):format(err) -- candran.can:206
+return nil, ("cannot open %s"):format(tostring(err)) -- candran.can:206
 end -- candran.can:206
 local content = f:read("*a") -- candran.can:208
 f:close() -- candran.can:209
@@ -6651,7 +6651,7 @@ if r then -- candran.can:321
 return r(modpath, filepath) -- candran.can:322
 else -- candran.can:322
 error(("error loading candran module '%s' from file '%s':\
-	%s"):format(modpath, filepath, s), 0) -- candran.can:324
+	%s"):format(modpath, filepath, tostring(s)), 0) -- candran.can:324
 end -- candran.can:324
 end, filepath -- candran.can:326
 end -- candran.can:326