User:Prosody/charsetdisambig.js

Note: After saving, changes may not occur immediately. Click here to learn how to bypass your browser's cache.

Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (Cmd-R on a Mac)
Google Chrome: Press Ctrl-Shift-R (Cmd-Shift-R on a Mac)
Internet Explorer: Hold Ctrl while clicking Refresh, or press Ctrl-F5
Opera: Clear the cache in Tools → Preferences

For details and instructions about other browsers, see Wikipedia:Bypass your cache.

Code that you insert on this page could contain malicious content capable of compromising your account. If you are unsure whether code you are adding to this page is safe, you can ask at the central discussion page, Scriptorium. The code will be executed when previewing this page under some skins, including Monobook. You can Purge this page in the interim if you wish to refresh the content sooner under another skin.

Documentation for this script can be added at User:Prosody/charsetdisambig.

//adapted from http://olivier.thill.perso.neuf.fr/russian/lcg.htm by en:ws:User:Rene1596
charsets = [["Latin", [[0x41, 0x5A], [0x61, 0x7A], [0xC0, 0xFF]], "lightyellow"], ["Greek", [[0x370, 0x3E1]], "lightcyan"], ["Cyrillic", [[0x400, 0x46F]], "lightgreen"], ["Other", [], "white"]];

function show_text_in_color(from)
{
  var from_lg = from.length; 
  var to = new String();
  var c;
  var typ, old_typ;

  to = "";
  old_typ = "?";
  for(i=0; i < from_lg; i++) {
    c = from.charAt(i, 1);
    n = from.charCodeAt(i, 1);
    typ = "Other"
    for(j=0; j < charsets.length; j++) {
      for(k=0; k < charsets[j][1].length; k++) {
        if (n >= charsets[j][1][k][0] && n <= charsets[j][1][k][1]) typ = charsets[j][0]
      }
    }
    
    if (typ != old_typ) {
      if (old_typ != "?") to += "</span>";
      for(j=0; j < charsets.length; j++) {
        if (typ == charsets[j][0]) to += "<span style='background-color: " + charsets[j][2] + ";'>";
      }
      old_typ = typ;
    }
    to += c;
    if (c == '\n') to += "<br>";
  }
  if (old_typ != "?") to += "</span>";

  return to;
}

function charset_dialog_header() {
  h = "<p>"
  for (i=0; i < charsets.length; i++) {
    h += "<span style='background-color: " + charsets[i][2] + ";'>" + charsets[i][0] + "</span>, ";
  }
  h = h.substr(0, h.length-2);
  h += "</p><hr /><div id='disambiguated-text'></div>";
  return h;
}


// add button -- cribbed from http://www.mediawiki.org/wiki/Extension:WikiEditor/Toolbar_customization
if ( typeof $j != 'undefined' && typeof $.fn.wikiEditor != 'undefined' ) {
  // To add a button to an existing toolbar group:
  $(document).ready( function() {
    $( '#wpTextbox1' ).wikiEditor( 'addDialog', {
      'charset-disambig-dialog': {
        resizeme: false,
        titleMsg: 'charset-disambig-dialog',
        id: 'charset-disambig-dialog',
        init: function() {},
        html: charset_dialog_header(),
        dialog: {
          width: 550,
          open: function () { document.getElementById("disambiguated-text").innerHTML = show_text_in_color(document.getElementById("wpTextbox1").value); },
          beforeclose: function () {},
          buttons: {}
        }
      }
    });
    $( '#wpTextbox1' ).wikiEditor( 'addToToolbar', {
      'section': 'main',
      'group': 'insert',
      'tools': {
        'charsetdisambig': {
          label: 'Disambiguate character sets', // or use labelMsg for a localized label, see above
          type: 'button',
          icon: '//upload.wikimedia.org/wikipedia/commons/3/3e/Disambiguate_charset_button.png',
          action: {
            type: 'dialog',
            module: 'charset-disambig-dialog'
          }
        }
      }
    });
  });
}