forked from public/foundryvtt-wh4-lang-fr-fr
59 lines
1.2 KiB
Lua
59 lines
1.2 KiB
Lua
--[[
|
|
Licensed according to the included 'LICENSE' document
|
|
Author: Thomas Harning Jr <harningt@gmail.com>
|
|
]]
|
|
local tostring = tostring
|
|
local assert = assert
|
|
local jsonutil = require("json.util")
|
|
local huge = require("math").huge
|
|
|
|
local _ENV = nil
|
|
|
|
local defaultOptions = {
|
|
nan = true,
|
|
inf = true
|
|
}
|
|
|
|
local modeOptions = {}
|
|
modeOptions.strict = {
|
|
nan = false,
|
|
inf = false
|
|
}
|
|
|
|
local function mergeOptions(options, mode)
|
|
jsonutil.doOptionMerge(options, false, 'number', defaultOptions, mode and modeOptions[mode])
|
|
end
|
|
|
|
|
|
local function encodeNumber(number, options)
|
|
if number ~= number then
|
|
assert(options.nan, "Invalid number: NaN not enabled")
|
|
return "NaN"
|
|
end
|
|
if number == huge then
|
|
assert(options.inf, "Invalid number: Infinity not enabled")
|
|
return "Infinity"
|
|
end
|
|
if number == -huge then
|
|
assert(options.inf, "Invalid number: Infinity not enabled")
|
|
return "-Infinity"
|
|
end
|
|
return tostring(number)
|
|
end
|
|
|
|
local function getEncoder(options)
|
|
options = options and jsonutil.merge({}, defaultOptions, options) or defaultOptions
|
|
return {
|
|
number = function(number, state)
|
|
return encodeNumber(number, options)
|
|
end
|
|
}
|
|
end
|
|
|
|
local number = {
|
|
mergeOptions = mergeOptions,
|
|
getEncoder = getEncoder
|
|
}
|
|
|
|
return number
|