Regular expression tips

Posted by Kyle Hankinson August 17th, 2022

General

If you need a trigger or alias to match on a regular expression, here are some hints and tips to use.

Regex vailidation

As you type your regex, the main mud display will update to highlight matches.

The background will be highlighted with the full match range. The full match can be accessed in script via \0.
Each capture group will be underlined and can be used as a paramter in the script starting with \1, \2, \3, etc.

Whitespace

For whitespace (space, tab, linebreak) use the \s+ syntax option. While most muds will use spaces, some muds will use tabs is certain instances which may case a basic space match to fail.

Console commands

Posted by Kyle Hankinson August 5th, 2022

Commands

#clearMessages

Clears anything currently in the messages window.

#clearOutput

Removes the main output buffer.

#autocomplete list

Displays a list of current autocomplete entries.

#autocomplete clear

Clears the autocomplete entries.

#vars

Displays a list of current script variables.

#disconnect

Disconnects from the current session. If auto-reconnect is enabled, a countdown will be started and the connection re-attempted.

#close

Disconnects the current connection and closes the window.

#set VARIABLE=VALUE

Sets the specified varaible to the specified value.

#stop

Stops any activly waiting scripts. Scripts may be in a waiting state from either a wait or a commandAndReadFromServer function.

Autocomplete

Posted by Kyle Hankinson August 3rd, 2022

What is autocomplete?

Autocomplete is a way to quickly turn a partial letter into a full word. For example if you were to type the letter look mer and hit tab, it might fill the completion text in as look merchant rather than needing to fully type out merchant.

An example:

How it works

MUD Client allows autocomplete keywords to be added via the scripting engine. An example of this could be an alias to the command look or inventory, or by a trigger that matches You see:.

To have words added to the autocomplete list, you must call the processForAutocomplete method with either an array of words or a string containing one or more words to be added. For example, you could have a login script with either of the following:

processForAutcomplete(['consider', 'kill']);
processForAutcomplete('consider kill');

A larger example based on a trigger would be as follows:

In this example a regular expression is used to match from `You see:` until > (the cursor input for this mud). Everything inbetween is added for autocomplete.