Support for regex - either in conditions or as an action with capture groups exposed

[mohawkalex]

It would be really good to have support for regular expressions.

This could be surfaced in the UI ideally in both conditions and actions.

A conditional regex would just test whether a string matched against a regex.

An action regex would expose capture groups.

[michowl]

Would like to be able to perform regex commands on strings.

Outputs would be 

- array of matches

- count of matches

- array of arrays of groups in matches

if using find/replace regex, also include full string post replacement

[dschmidt]

I would love to be able to use regex to parse text emails for expected strings and use that to create a calendar event!

[colvinjoseph]

I would love to use regex for comments from planner task so I can generate a summary of a task based on the key words. This is a good idea to have that ability.

[Anonymous]

Greate feature, would like to have it!

[MM]

Regex should be usable on all fields, like any other function