Triggers and prefixes

A custom command starts with the prefix of the server, ! by default: !hello. A command can also have its own trigger, so people can start it in another way:

!customcommand trigger <name> <type> [text]

Type	It starts when…	Example	Message that starts it
`command`	The message starts with the prefix of Petto and the name. This is the default		`!hello`
`prefix`	The message starts with its own prefix and the name	`!customcommand trigger hello prefix ?`	`?hello`
`startswith`	The message starts with some words	`!customcommand trigger hi startswith hey bot`	`hey bot, how are you?`
`exact`	The message is exactly some words	`!customcommand trigger gm exact good morning`	`good morning`
`contains`	The message has some words inside	`!customcommand trigger pizza contains pizza`	`I want pizza!`

Without a type, !customcommand trigger <name> shows how the command starts now.

How it matches

The case does not matter: Good Morning matches good morning.
A word is never cut in the middle: pizza matches I love pizza! but not pizzas or unpizza.
The arguments are what comes after the trigger. For ?hello big world, .Args is ["big", "world"]. For contains, .RawArgs is the whole message.
A command with a trigger of its own is not also started by the prefix of Petto. Setting command goes back to that.
A prefix is up to 5 characters without spaces, such as ?, >> or .. The other texts are up to 50 characters. A trigger cannot hold a mention.
If two commands could match the same message, the first one by name (alphabetical order) runs. Only one command runs for each message.
A prefix plus a name cannot be the name of a real command of Petto.

Limits

A server can have up to 25 commands with a trigger of their own. Each person can use each command once every 2 seconds, so a contains trigger cannot be used to flood a channel.

Tips

Use prefix to make commands that feel like their own bot: ?roll, >>shop.
Use exact for greetings and short phrases, and contains sparingly: it reads every message of the server.
The code can tell how it started: .Cmd is the name of the command and .Prefix is the prefix that started it (empty for startswith, exact and contains).