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util.serialization: Proper serialization of Infinity, -Infinity and NaN.

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This commit is contained in:
Waqas Hussain 2010-12-13 20:45:08 +05:00
parent 503997bd9d
commit de4152ae6d
1 changed files with 8 additions and 2 deletions
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10
util/serialization.lua
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@ -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