Problem trying to match a word with a letter with accent mark and with "del". REGEX in python

Question

I want to match the following three expressions:

"Facultad Regional Villa María"
"Facultad Regional Mar del Plata"
"Facultad Regional Haedo"

This what i did:

"^(Facultad Regional)( [A-Z][a-z]*){1,5}$"

As you can see, Facultad Regional must be at the beginning of the string.

I can match the third expression perfectly. But not the other two. I need the following concept to put in my regex. I need that if the word "del" exists, is still valid. Also, if a word has an alphabet character with an accent mark, it's also valid.

Thanks in advance. I'm glad to read your answers (:

`( [A-Z][a-z]*){1,5}$` means _Any english letter or none from 1 to 5 times_. Makes sense that it doesn't match other two expressions — sudden_appearance, Jun 13 '22 at 18:59
If `del` exists anywhere or as one of the 5 words? Current regex isn't looking for `del`. Does having `del` supercede other rule(s)? e.g. `model` and `delta` should be found? — user3783243, Jun 13 '22 at 19:07
@sudden_appearance Yeah, I know but i don't know how to do it to make it work. That's why I'm asking. — Facundo Borrás, Jun 13 '22 at 19:15
@user3783243 As one of the five words, to be precise. It must be after "Facultad Regional". It can only be found "del". The other words that can be matched if first letter is upper and the rest lower — Facundo Borrás, Jun 13 '22 at 19:19

sudden_appearance · Accepted Answer · 2022-06-14T07:42:23.847

1

From what you've said, I got these rules

String starts with Facultad Regional
Then there can be from 1 to 5 following words
- del
- word that is title cased and has no more uppercase letters afterwards

That's the regex you want ^Facultad Regional( \p{Lu}\p{Ll}+| del){1,5}$

P.S. \p{Lu} and \p{Ll} means letter that has upper(lower)case variant of this letter

UPD: to use \p in your regex, you need to use regex library

edited Jun 14 '22 at 07:42

answered Jun 13 '22 at 19:31

sudden_appearance

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I tried it but it gives an error from the re library. The problem is with the \p. – Facundo Borrás Jun 13 '22 at 19:45
@user3783243, it is achievable with [regex](https://pypi.org/project/regex/) module – sudden_appearance Jun 13 '22 at 19:49
[This answer](https://stackoverflow.com/questions/58763162/re-findall-bad-escape-for-category-s-and-p) has an explanation. Briefly: `re` module has pure functionality with unicode regex – sudden_appearance Jun 13 '22 at 19:51
@sudden_appearance Thanks with the regex module works perfectly. – Facundo Borrás Jun 13 '22 at 20:40
@sudden_appearance You should add that to the answer – user3783243 Jun 14 '22 at 00:35

Problem trying to match a word with a letter with accent mark and with "del". REGEX in python

1 Answers1