in my field of research there is a parameter called a*. It shows up in a lot of notes and PDFs that I have.
My problem is that I can’t figure out how to search for it, as searching for a* returns all words starting with the letter a.
Is there a way to omit the wildcard and to tell Devonthink to treat it as a character?
If already tried to find a hint in the manual and searched the forum.
DEVONthink will only search for alphanumeric characters, with the exception that ‘’ and ‘?’ are wildcards. Even if you could escape the '’ with a regex operator, I would expect that ‘*’ would still be unsearchable as are all the other non-alphanumeric characters.
Assuming that you have enabled Spotlight searching for your databases, you can search for ‘a*’ with Spotlight and then save the search.
You could try a[^a-z]. As wildcards as literals are ignored, you can’t extend this to a[^a-z0-9] to find non-alphanumerics but unless you have occurrences of a1, a2, etc. this may work well enough for you.