Lesson 8: Convert a simple mIRC script

Goal: convert this mIRC script:

on *:TEXT:!hello*:#:{
  msg $chan Hello, $nick! (you said: $1-)
}

Option 1: let SwizzinIRC translate it

Save it as a .mrc file. SwizzinIRC translates this pattern to SwizzScript when it loads and lists any problems with line numbers. It stays Off until you review it and approve its permissions. Edit the .mrc file, not the translation. See mIRC compatibility for the supported events, commands and identifiers.

Option 2: write it in Luau

--! name: Hello trigger
--! description: Answers !hello in channels
--! api: 1
--! permissions: send
swizzin.on("message", function(e)
    local inChannel = string.sub(e.target, 1, 1) == "#"
    if inChannel and swizzin.wildmatch("!hello*", e.text) then
        swizzin.send(e.target, `Hello, {e.nick}! (you said: {string.sub(e.text, 1, 200)})`)
    end
end)

How the parts map

mIRC	SwizzScript
`on :TEXT:!hello:#:`	`swizzin.on("message", …)` plus `swizzin.wildmatch("!hello*", e.text)` and a channel check
`$chan`	`e.target`
`$nick`	`e.nick`
`$1-`	the message text, `e.text`
`msg $chan …`	`swizzin.send(e.target, …)`

Expected result

Someone typing !hello there in a channel gets Hello, <their nick>! (you said: !hello there).

Common mistakes

Expecting mIRC variables, if/while, timer, files or sockets to translate: they are refused. Use Luau locals, swizzin.data, and swizzin.timer.
Forgetting the channel check: in mIRC the # in the event restricts it to channels.

Troubleshooting

The editor lists unsupported lines (up to 20) with line numbers. See Coming from mIRC.