How to filter the special characters, not including the French letters, using regular expressions

Question

I use replace(/[^\\w\\s]|_/g, \"\").replace(/\\s+/g, \" \") can filter all special character, but I don\'t want filter the French letters.

Answer 1

You can use this:

/[^\w\sàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒ]/g

You don't need special treatment for the _ as it is included in \w

Reference

French orthography