How match string ignoring case and accent?

Question

Im using Regex to match string ignoring case in Unity.

My code:

...
string _word = "Esto Es Una Cadena Con Texto"
string final = "esto es una cadena con texto"

if(Regex.IsMatch(final, Regex.Escape(_word), RegexOptions.IgnoreCase)){
//
}
...

According this:

string _word = "Estó Es Uná Cadená Cón Textó"
string final = "esto es una cadena con texto"

Is there a code to match previous string ignoring case and accent?

Do you actually need regular expressions here? It may well change the answer very significantly. — Jon Skeet, Apr 08 '19 at 13:27
Have a look at https://stackoverflow.com/questions/11054893/how-to-ignore-acute-accent-in-a-javascript-regex-match — Wyck, Apr 08 '19 at 13:29

score 1 · Answer 1 · answered Apr 08 '19 at 13:53

Try using CultureInfo:

string _word = "Estó Es Uná Cadená Cón Textó";
string final = "esto es una cadena con texto";
var compareInfo = CultureInfo.InvariantCulture.CompareInfo;
var equal = Convert.ToBoolean(compareInfo.Compare(_word, final));

if (equal)
{
    Console.WriteLine("Hello World!");
}

score 0 · Answer 2 · answered Apr 08 '19 at 13:37

If you want to match this specific sentence you could use something like this:

string final = "est[oó] es un[aá] caden[aá] c[oó]n text[oó]"

but if just want to "ignore" accents i would recommend you use String.replace(char, char)

string _word = "Estó Es Uná Cadená Cón Textó"
string final = "esto es una cadena con texto"

_word = _word.replace('é', 'e');  // same for á and ó

if(Regex.IsMatch(final, Regex.Escape(_word), RegexOptions.IgnoreCase)){
//
}

How match string ignoring case and accent?

2 Answers2