40 lines
832 B
Lua
40 lines
832 B
Lua
local calc = {}
|
|
|
|
local URL = require('socket.url')
|
|
local http = require('socket.http')
|
|
local utilities = require('miku.utilities')
|
|
|
|
calc.command = 'calc <Ausdruck>'
|
|
|
|
function calc:init(config)
|
|
calc.triggers = {
|
|
"^/calc (.*)$"
|
|
}
|
|
calc.doc = [[*
|
|
]]..config.cmd_pat..[[calc* _[Ausdruck]_: Rechnet]]
|
|
end
|
|
|
|
function calc:mathjs(exp)
|
|
local exp = string.gsub(exp, ",", "%.")
|
|
local url = 'http://api.mathjs.org/v1/'
|
|
url = url..'?expr='..URL.escape(exp)
|
|
local b,c = http.request(url)
|
|
local text = nil
|
|
if c == 200 then
|
|
text = '= '..string.gsub(b, "%.", ",")
|
|
|
|
elseif c == 400 then
|
|
text = b
|
|
else
|
|
text = 'Unerwarteter Fehler\n'
|
|
..'Ist api.mathjs.org erreichbar?'
|
|
end
|
|
return text
|
|
end
|
|
|
|
function calc:action(msg, config, matches)
|
|
utilities.send_reply(self, msg, calc:mathjs(matches[1]))
|
|
end
|
|
|
|
return calc
|