I'm sure there's a really simple answer to this, but I can't find it!
In Keyboard Maestro, I'm trying to set the trigger as a regular expression of semicolon followed by one of a few characters, like this:
;[.,\s]
When I put it like that, it works, but I only want the trigger to fire when the semicolon is on its own (at the beginning of a sentence, or after a space). I would think this would do the trick:
\b;[,.\s]
...but when I put the boundary character in, it doesn't work. What am I doing wrong? Thanks!
(I should add that the boundary character works fine when followed by an alphanumeric character, so it seems to just be an issue with symbols)
You should use the opposite construct as there is no word boundary between a space or start of string and a semi-colon:
\B;[,.\s]
^^
Here, \B is a non-word boundary that matches at all the locations where a word boundary does not match. In this specific case, ; will be matches only at the start of the string or if preceded with a non-word char (any char other than a letter/digit/_ and, depending on the regex library, other (very rare) chars that are consider "word" chars.