// ==UserScript==
// @name        ii-rainbow
// @description `rtext to rainbow`r
// @author      Full Metal Lion
// @namespace   http://enquirer.improbableisland.com/dokuwiki/doku.php?id=greasemonkey
// @match       *://*.improbableisland.com/*
// @exclude     *://enquirer.improbableisland.com/dokuwiki/*
// @icon        http://improbableisland.com/favicon.ico
// @version     0.1
// @grant       none
// ==/UserScript==

var bracketsr = /`r(.*?)`r/;
//matches brackets and captures what's between them,

rain=["*","Q","y","g","L","&","V"];

var rainindex=0;
function nextrain(){
  if (rainindex>=rain.length){
    rainindex = 0;
  }
  return rain[rainindex++];
}

var boxes = document.querySelectorAll('input, textarea');
for(var i=0; i<boxes.length; i++){
  boxes[i].addEventListener("input", function(event){
    target = this.value;
    target = bracketsr.exec(target)[1]; //get the capture group
    str="";
    for (c of target){
      if (c != " "){
        str += "`"+nextrain()+c;
      } else {
        str += c;
      }
    }
    rainindex=0;
    str = "`b`i"+str+"`b`i";
    console.log(str);
    this.value =(this.value.replace(bracketsr, str));
  });
};