Have worked on an App for about 2 months and AppGyver has proved to be the perfect tool :-).
But Regular Expressions have always been a challenge for me and I’m not having any sucess with the AppGyver REPLACE_ONE_REGEX function. Hoping someone can help me.
My object is to highlight matching text portions in a text variable from a users text search. I’m using HTML to render the text and simple wrapping the matching text in <span style="color:red;"> </span>. I can do it easily with REPLACE_ALL function but that only replaces text of the same case. What I need to happen is to match and replace the search test in any case (or combination of case) and I assume the REPLACE_ONE_REGEX function is what I shoudl be using.
So what is the syntax for REPLACE_ONE_REGEX that would use to replace “big” with “small” in all of the examples below 
My **BIG** problem.
My **big** head.
My **Big** software problem
so the result of each replace would be
My **SMALL** problem.
My **small** head.
My **Small** software problem
A rough way of doing this would be to replace using LOWERCASE, UPPERCASE and CAPITALIZE functions but that is a lot of work and does not cover all case combinations. I’m sure there is a REGEX solution!