gistfile1.js

function onInsideBracket(string) {
  return '<span class="lookup">' + Ext.htmlEncode(string) + '</span>';
}

function onOutsideBracket(string) {
  return Ext.htmlEncode(string);
}

function formatBrackets(string) {
  var out = "";

  if (string) {
    string = string.replace(/\[word\]/g, "[");
    string = string.replace(/\[\/word\]/g, "]");

    var splitByOpen = string.split("[");
    if (splitByOpen[0] != "") {
      out += this.onOutsideBracket(splitByOpen[0]);
    }

    for (var i = 1; i < splitByOpen.length; i++) {
      var splitByClose = splitByOpen[i].split("]");
      out += this.onInsideBracket(splitByClose[0]);

      if (splitByClose[1] != "") {
        out += this.onOutsideBracket(splitByClose[1]);
      }
    }
  }

  return out.replace(/\n/g, "<br/>");
}