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Mikubot-2/plugins/calc.lua
topkecleon 26c1299374 Rewrote help.lua and added markup support to several plugins.
help.lua has been rewritten to support "/help command".
New variable "command" has been added to plugins for the syntax (w/out slash) to be displayed in main
help message. "doc" will be displayed upon "/help command".

Output of >12 plugins has been reformated to utilize markup.
There is a fairly standard style throughout plugins.

get_word() in utilities.lua now has defaults for nil arguments.
2016-01-08 08:44:37 -05:00

43 lines
884 B
Lua
Executable File

local command = 'calc <expression>'
local doc = [[```
/calc <expression>
Returns solutions to mathematical expressions and conversions between common units. Results provided by mathjs.org.
```]]
local triggers = {
'^/calc[@'..bot.username..']*'
}
local action = function(msg)
local input = msg.text:input()
if not input then
if msg.reply_to_message and msg.reply_to_message.text then
input = msg.reply_to_message.text
else
sendMessage(msg.chat.id, doc, true, msg.message_id, true)
return
end
end
local url = 'https://api.mathjs.org/v1/?expr=' .. URL.escape(input)
local output = HTTPS.request(url)
if not output then
sendReply(msg, config.errors.connection)
return
end
output = '`' .. output .. '`'
sendMessage(msg.chat.id, output, true, msg.message_id, true)
end
return {
action = action,
triggers = triggers,
command = command,
doc = doc
}