How to use regular expressions in "available when"?

[Mark]

.

1. Are regular expressions available in functions like "available when", or not?

2. If regular expressions can be used, can someone please give me a hint how to do this?

   Focused Window Title Contains: "Fastmail"
   Focused Window Title Does Not Contain: "compose new"
   .

The problem is, "Available When" only allows one choice.

---

[Tom]

@Mark

1. Are regular expressions available in functions like "available when", or not?

As far as I know you cannot select applications by regular expressions.

@Mark

2. If regular expressions can be used, can someone please give me a hint how to do this?

Focused Window Title Contains: "Fastmail"
Focused Window Title Does Not Contain: "compose new"

In the case of the Focused Window:

In general you can use regular expressions when

• it explicitly says “regular expression”
• or when you see the term “match(es)”

“Contain” means string matching.

[JMichaelTX]

@Mark

Are regular expressions available in functions like "available when", or not?

Very often, regular expressions are available anywhere you can type in text.

From this thread:
###Places where Regular Expressions can be used

@peternlewis

In almost all cases, regex is signified explicitly, usually by a menu selection that allows "matches" as an option, or for some actions like Search Variable it is always a regex.

But there are a few cases where a text field is almost always just a "contains" or "is" test (eg Button Press), and in some of those I allow regex if the entry starts with "^".

See the above thread for more examples and discussion.

[peternlewis]

In Keyboard Maestro, the term “matches” implies regular expressions.

In the menu, select Available when a focussed window title matches.

[Mark]

Thank you Tom, JM, and Peter, for those details.
I will read and study more.