Software / code / prosody
Changeset
3745:87f6eabd90c9
util.serialization: Proper serialization of Infinity, -Infinity and NaN.
| author | Waqas Hussain <waqas20@gmail.com> |
|---|---|
| date | Mon, 13 Dec 2010 20:45:08 +0500 |
| parents | 3744:ed76b64da9d1 |
| children | 3746:9719316c854e |
| files | util/serialization.lua |
| diffstat | 1 files changed, 8 insertions(+), 2 deletions(-) [+] |
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--- a/util/serialization.lua Mon Dec 13 19:28:57 2010 +0500 +++ b/util/serialization.lua Mon Dec 13 20:45:08 2010 +0500 @@ -28,14 +28,20 @@ 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
