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Mikubot/plugins/rechner.lua

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-- Function reference: http://mathjs.org/docs/reference/functions/categorical.html
local function mathjs(exp)
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local exp = string.gsub(exp, ",", ".")
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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
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text = 'Ergebnis: '..string.gsub(b, "%.", "%,")
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elseif c == 400 then
text = b
else
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text = 'Unerwarteter Fehler\n'
..'Ist api.mathjs.org erreichbar?'
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end
return text
end
local function run(msg, matches)
return mathjs(matches[1])
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end
return {
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description = "Rechnen mit der mathjs-API",
usage = {
"/calc [Ausdruck]: Rechnet",
"Weitere Hilfe: + = Plus, - = Minus, * = Mal, / = geteilt"
},
patterns = {
"^/calc (.*)$"
},
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run = run
}