moonledger

commit 5d3441876b76c2c7d86a7e757403a737d51affa4
parent 9b6ef07fc1867b47fbeb55356486e55bb12c98ab
Author: Nihal Jere <nihal@nihaljere.xyz>
Date:   Wed, 17 Aug 2022 00:09:05 -0500

decmath: export tostring

Diffstat:
M
decmath.lua
 | 
27
++++++++++++++++++++-------

1 file changed, 20 insertions(+), 7 deletions(-)
diff --git a/decmath.lua b/decmath.lua
@@ -2,11 +2,17 @@
 
 local imath = require "imath"
 
-local meta = {
-	__tostring = function(val)
-		local str = tostring(val.sig)
+function asstring(val)
+	local str = tostring(val.sig)
+	if val.exp < 0 then
 		return string.sub(str, 1, #str + val.exp) .. "." .. string.sub(str, #str + val.exp + 1, #str)
-	end,
+	end
+
+	return str
+end
+
+local meta = {
+	__tostring = asstring,
 	__add = function(a, b)
 		if a.exp < b.exp then
 			a, b = b, a
@@ -26,10 +32,17 @@ return {
 			-- todo normalize
 			local asint, count = string.gsub(val, "%.", "")
 			local pos = string.find(val, "%.")
-			assert(count == 1)
-			local dec = {sig=imath.new(asint), exp=pos-#val}
+			local dec = {}
 			setmetatable(dec, meta)
+			if count == 1 then
+				dec.sig = imath.new(asint)
+				dec.exp = pos - #val
+			elseif count == 0 then
+				dec.sig = imath.new(asint)
+				dec.exp = 0
+			end
 			return dec
 		end
-	end
+	end,
+	tostring = asstring
 }