// Purpose: Changes hexcharacter codes in wikilinks to actual unicode characters

//

// Examples: [[Stra%C3%9Fe|street]] -> [[Straße|street]]

//           [[AutoEd#History_.281990.29|History]] ->

//               [[AutoEd#History (1990)|History]]

//

// Note: Contributed by CharlotteWeb

//

// Comments (CharlotteWeb):

// To keep things simple we'll ignore all image links. because some people prefer

// underscores in the file name and the caption can contain god-knows-what.

// one easy way is to flag them with a character which should never be used,

// but if it is already present we have a problem, so let's just quit.

//

function autoEdUnicodeHex(txt) { //MAIN FUNCTION describes list of fixes

 if(txt.match(/\uE000/)) return(txt); // see [[Private Use Area]]

 txt = txt.replace(/(\[\[[\:\s*]*(?:Image|File|Media)\s*\:)/gi, "$1\uE000");

 if(m = txt.match(/\[\[[^\[\]\n\uE000]+\]\]/g)) {

  for(var i = 0; i < m.length; i++) {

   parts = mi].split("|");

   link = parts0];

   a = link.split("#")

   title = a0];

   section = a1];

   try {

    link = decodeURIComponent(title.replace(/\%(.[^0-9A-F]|[^0-9A-F].|$)/gi, "%25$1")

     ) + ( section ? ("#" + decodeURIComponent(section

           // change "&#" to "%" when followed by valid hex

           .replace(/&#([0-9A-F]{2})/gi, "%$1")

           .replace(/\%(.[^0-9A-F]|[^0-9A-F].|$)/gi, "%25$1")

         )

     ) : "" )

    } catch(e) { } // just do no decoding

      parts0 = link; 

      txt = txt.replace(mi], parts.join("|"));

   }

  }

  return(txt.replace(/\uE000/g, ""));

}