"pure" JS regular expression for any unicode capital letter

pixxxel schubser wrote:

But you should not work with long long strings.

Better use ranges of unicode like this

… contents.replace(/[A-Z]/g, replaceWithWhatever); // is the same as

… contents.replace(/[\u0041-\u005A]/g, replaceWithWhatever);

… contents.replace(/[A-ZÀ-Ö]/g, replaceWithWhatever); new range added - is the same as

… contents.replace(/[\u0041-\u005A\u00C0-\u00D6]/g, replaceWithWhatever);

and so on

Good point. So, here's a function that will convert any string to its shortened form for GREP:

function shortenString(s){
  var r1, r2, a, i;
  r1 = r2 = s[0];
  a = [];
  for (i = 1; i < s.length; i++){
    if (s.charCodeAt() == r2.charCodeAt() + 1){
      r2 = s;
      if (i != s.length - 1) continue;
    }
    if (r1 != r2){
      a.push(r1 + "-" + r2);
    }
    else {
      a.push(r1);
    }
    r1 = r2 = s;
  }
  return a.join("");
}

Ariel