sensibilidade-de-caixa

I need to check if a certain term exists within a string (in SQL it's something like like '%termo%'). The point is that I ne ... uim Pedro Soares"; mainStr.Contains("JOA"); mainStr.Contains("Quim"); mainStr.Contains("PEDRO"); mainStr.Contains("PeDro");

When I had this question, I did not find quick results in Portuguese that offered an answer(most of the results are in StackO ... ? if you search for a name with an accent it is possible that it identify that "Luis" is related to" Luis " and vice versa?

Or is this just taste? Do not want if you like one more than the other. I don't care why people like one or the other more. ... do not understand the subject, I'm talking about the syntax of the language. I'm talking about the keywords, the identifiers.

I created a repository on Github and sent my application containing an X folder with the whole name in lowercase, when in f ... e for me to delete the folder with the lowercase name. Folder/ file.txt What do I do to delete the folder with the old name?