I have a small worry with RegExp in JavaScript. I would like to make an RegExp that is insensitive to accents.
For example if I do:
var str = 'césar';
var i = New Regexp (str, 'desired parameter, similar to <i> for example').exec('cesar');
console.log(i) // césar or cesar should print
Does something like this exist?
There is no RegExp parameter that you can pass to alter the way accents are treated. What you would need to do is build up a matrix of characters that should substitute each other and then construct a RegExp pattern from these substitute characters.
const e = ['È', 'É', 'Ê', 'Ë', 'è', 'é', 'ê', 'ë'],
a = ['à', 'á', 'â', 'ã', 'ä', 'å', 'æ', 'À', 'Á', 'Â', 'Ã', 'Ä', 'Å', 'Æ']
const substitutions = {
e, E: e, a, A: a
}
var str = 'Cesar';
const pattern = Array.from(str).map(c => substitutions[c] ? `[${c}${substitutions[c].join("")}]`: c).join("")
console.log(pattern)
var i = new RegExp(pattern, "gi").exec('césar');
console.log(i)