blob: fb4b8fa1fb6cf041aed684dcfa45cdc1f0094239 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
local M = {}
M.DEFAULT_WPM = 250
M.DEFAULT_STEP = 25
M.DEFAULT_MIN_WPM = 50
local function positive_finite(value)
return type(value) == "number"
and value == value
and value ~= math.huge
and value ~= -math.huge
and value > 0
end
function M.read(raw)
if raw == nil then raw = {} end
if type(raw) ~= "table" then
return nil, "rsvp settings must be a table"
end
for key in pairs(raw) do
if key ~= "wpm" and key ~= "wpm_step" and key ~= "min_wpm" then
return nil, string.format("unknown rsvp setting %s", tostring(key))
end
end
local settings = {
wpm = raw.wpm == nil and M.DEFAULT_WPM or raw.wpm,
wpm_step = raw.wpm_step == nil and M.DEFAULT_STEP or raw.wpm_step,
min_wpm = raw.min_wpm == nil and M.DEFAULT_MIN_WPM or raw.min_wpm,
}
for key, value in pairs(settings) do
if not positive_finite(value) then
return nil, string.format("rsvp.%s must be a finite positive number", key)
end
end
settings.wpm = math.max(settings.wpm, settings.min_wpm)
return settings
end
return M
|
