From 40e3e8175b1363f4ebf73aa30c030fc6fb699a25 Mon Sep 17 00:00:00 2001
From: Waqas Hussain <waqas20@gmail.com>
Date: Mon, 13 Dec 2010 20:45:08 +0500
Subject: util.serialization: Proper serialization of Infinity, -Infinity and
NaN.
---
util/serialization.lua | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
(limited to 'util')
diff --git a/util/serialization.lua b/util/serialization.lua
index 474b5d65..e193b64f 100644
--- a/util/serialization.lua
+++ b/util/serialization.lua
@@ -28,14 +28,20 @@ local indent = function(i)
end
local function basicSerialize (o)
if type(o) == "number" or type(o) == "boolean" then
- return tostring(o);
+ -- no need to check for NaN, as that's not a valid table index
+ if o == 1/0 then return "(1/0)";
+ elseif o == -1/0 then return "(-1/0)";
+ else return tostring(o); end
else -- assume it is a string -- FIXME make sure it's a string. throw an error otherwise.
return (("%q"):format(tostring(o)):gsub("\\\n", "\\n"));
end
end
local function _simplesave(o, ind, t, func)
if type(o) == "number" then
- func(t, tostring(o));
+ if o ~= o then func(t, "(0/0)");
+ elseif o == 1/0 then func(t, "(1/0)");
+ elseif o == -1/0 then func(t, "(-1/0)");
+ else func(t, tostring(o)); end
elseif type(o) == "string" then
func(t, (("%q"):format(o):gsub("\\\n", "\\n")));
elseif type(o) == "table" then
--
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