Format text with the script that comes in InDesign with find/change with grep

I haven't looked at it in recent years, but about 8 years ago I studied the GREP approaches in the FindChangeByList and found that many of them were formed badly because the Find included hard returns and caused paragraph style changes if used as shipped. Those built-in FindChange sequences work ok if all the text is raw or unstyled or all styled the same. The changes I made in my version largely revolved around changing the Finds from including hard returns to MATCHING (positive look-aheads and positive look-behinds) to a hard return. Done this way, the Find/Changes can be run early or late in a document's development, since none of the Find/Changes can goof up existing applied paragraph styles. When I get a chance to examine the shipping version, I will double-check if it is the same old searches, or whether the Adobe boffin have improved it in recent years.

Update: I just had a look at Find/ChangebyList.txt. Lines 31, 34, and 36 are still as they were originally. They are destructive and should be modified to MATCH; not select. This would produce a safer FindChangebyList.

2nd Update: I just read through your uploaded code. You note that Capitulo and Seccau do not work, but Articulo does.

I suspect it is the specially accented (diacritics) letters in those two words that the plain-old-programmers-English-language cannot understand. Maybe try to wildcard those characters and see if it works correctly?

I'm on my phone so can't check - what is the encoding of your TXT file?