How to use GREP to format scientific expressions

[Julie_M_]

I have a huge text with a lot of scientific expressions like "Cmax" and "Tmax" that require a subscript on the "max" but not on the "C", or italics on the text between brackets but not to the backets. How can I use GREP styles or GREP find/replace to apply the character style to the letters "max" in "Cmax" and "tmax". And of course the word "maximum" is also present in the text but should not be subscripted.

I am new to GREP, but I'm quite sure there must be a way to use it to apply the right character styles only where I need it, just haven't found it yet.

[manal shanableh]

https://www.youtube.com/watch?v=V4j9rXda-18

[vladan saveljic · Accepted solution]

you could try this grep style

[Julie_M_]

It works! Thanks a lot!
Can you explain how did you come to this style? I mean, how do you "write" the exception?

[Willi Adelberger]

With GREP you have often several solutions

Create a character style

Use it for

Try to use the hints in the menu:

Positive look behind, insert C | T (the pipe | means or) this will not include to the style, but mus come before

Insert the character chain you want to apply the style to "max".

[vladan saveljic]

[l\u] - any letter

\K - positive lookbehind

\b - Word Boundary

in your case the grep style takes into consideration only the whole word "max" preceded with any letter

[Peter Spier]

Perhaps it would be a good idea to modify the expression to \b[\l\u]\Kmax\b to limit it to only words with a single letter before the "max."