GREP style for specific digits

[jakubf20695365]

Hi all,
I'm working on a book and I'm having an issue with GREP. I have a list of excercises in a following manner (to be clear - Zad. is a shortcut from 'Zadanie', meaning an 'Exercise' in English):

Zad.1 (main exercise)

Zad.1.2 (secondary exercise)

Zad.1.3

Zad.2 ... etc

Analogically, I have 2-digit numbers exercises: Zad.10, Zad.10.1, Zad. 10.2 etc. and 3 digit: Zad.100., Zad.100.1, Zad.100.2, Zad.101.
I would like to change "Zad." to a specific character style, only if it's followed by a secondary exercise. Wrote 3 greps:

But only first two are working properly. Any idea why the third one don't change the font?

Thanks

[vladan saveljic]

Maybe I didn't understand your issue.

Zad.3.1

Zad.3.2

Zad.12.1

Zad.12.2

Zad.108.1

Zad.108.2

On your screenshot I see that all this cases are in Comic sans

I missed something?

[jakubf20695365]

I have a whole book made with a Lato font. I need to change prefixes: "Zad." to a specific character style (e.g. Comic Sans - it doesn't matter for now), only if they stand before secondary exercieses (x.1, x.2 etc). With the GREPs I sent above, it works only for one-digit and two-digit. In three-digit examples (see the screenshot) - it doesn't. The main exercise number is being changed to Comic. I need it to stay in Lato (as on two first screenshots). Any ideas for that?
Sorry maybe I posted my question wrongly.

Jakub

[vladan saveljic · Accepted solution]

However in your case you don't need 3 grep style.

One grep style is enough

Try this grep

Zad\.(?=\d{1,3}\.\d+)

or this one

Zad\.(?=\d+\.\d+)

[jakubf20695365]

Thank you for a help! Worked!
Jakub

[vladan saveljic]

You have to insert "\" before any dot "."

the dot "." without "\" means any character

In your case for example your second grep style Zad.(?=\d\d.\d) means find Zad + any character with positiv lookahead any digit + any digit + any character

In this case your grep style finds Zad.108 too