User:Lilac Soul/formatter.js

Code that you insert on this page could contain malicious content capable of compromising your account. If you import a script from another page with "importScript", "mw.loader.load", "iusc", or "lusc", take note that this causes you to dynamically load a remote script, which could be changed by others. Editors are responsible for all edits and actions they perform, including by scripts. User scripts are not centrally supported and may malfunction or become inoperable due to software changes. A guide to help you find broken scripts is available. If you are unsure whether code you are adding to this page is safe, you can ask at the appropriate village pump.
This code will be executed when previewing this page.

Documentation for this user script can be added at User:Lilac Soul/formatter.

Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.

/*<source lang=javascript>*/
//Wikipedia:WikiProject User scripts | Scripts

function format() {
    var txt = document.editform.wpTextbox1;
    //txt.value = catFixer(txt.value);
    txt.value = entities(txt.value);
    txt.value = fixheadings(txt.value);
    txt.value = fixsyntax(txt.value);
    txt.value = linkfixer(txt.value, false);
    //txt.value = imagefixer(txt.value);
    //txt.value = whitespace(txt.value);
    txt.value = linksimplifyer(txt.value);
    //txt.value = trim(txt.value);
    document.editform.wpSummary.value += "+formating fixes using [[Wikipedia:WikiProject User scripts/Scripts/Formatter]]";
   document.getElementById('wpDiff').click();
}

function whitespace(str){
    str = str.replace(/\t/g, " ");

    str = str.replace(/^ ? ? \n/gm, "\n");
    str = str.replace(/(\n\n)\n+/g, "$1");
    str = str.replace(/== ? ?\n\n==/g, "==\n==");
    str = str.replace(/\n\n(\* ?\[?http)/g, "\n$1");

    str = str.replace(/^ ? ? \n/gm, "\n");
    str = str.replace(/\n\n\*/g, "\n*");
    str = str.replace(/[ \t][ \t]+/g, " ");
    str = str.replace(/([=\n]\n)\n+/g, "$1");
    str = str.replace(/ \n/g, "\n");

    //* bullet points
    str = str.replace(/^([\*#]+) /gm, "$1");
    str = str.replace(/^([\*#]+)/gm, "$1 ");

    //==Headings==
    str = str.replace(/^(={1,4}) ?(.*?) ?(={1,4})$/gm, "$1$2$3");

    //dash — spacing
   // str = str.replace(/ ?(–|&#150;|&ndash;|&#8211;|&#x2013;) ?/g, "$1");
   // str = str.replace(/ ?(—|&#151;|&mdash;|&#8212;|&#x2014;) ?/g, "$1");
   // str = str.replace(/([^1-9])(—|&#151;|&mdash;|&#8212;|&#x2014;|–|&#150;|&ndash;|&#8211;|&#x2013;)([^1-9])/g, "$1 $2 $3");

    return trim(str);
}

function entities(str){
    //str = str.replace(//g, "");
    str = str.replace(/&#150;|&#8211;|&#x2013;/g, "&ndash;");
    str = str.replace(/&#151;|&#8212;|&#x2014;/g, "&mdash;");
   // str = str.replace(/(cm| m|km|mi)<sup>2</sup>/g, "$1²");
    str = str.replace(/&sup2;/g, "²");
    str = str.replace(/&deg;/g, "°");

    return trim(str);
}

//Fix ==See also== and similar section common errors.
function fixheadings(str)
{
  if( !str.match(/= ?See also ?=/) )
    str = str.replace(/(== ?)(see also:?|related topics:?|related articles:?|internal links:?|also see:?)( ?==)/gi, "$1See also$3");

  str = str.replace(/(== ?)(external links?:?|outside links?|web ?links?:?|exterior links?:?)( ?==)/gi, "$1External links$3");
  str = str.replace(/(== ?)(references?:?)( ?==)/gi, "$1References$3");
  str = str.replace(/(== ?)(sources?:?)( ?==)/gi, "$1Sources$3");
  str = str.replace(/(== ?)(further readings?:?)( ?==)/gi, "$1Further reading$3");

  return str;
}

function catFixer(str){
    str = str.replace(/\[\[ ?[Cc]ategory ?: ?/g, "[[Category:");

    return trim(str);
}

//fixes many common syntax problems
function fixsyntax(str)
{
  //replace html with wiki syntax
  if( !str.match(/'<\/?[ib]>|<\/?[ib]>'/gi) )
  {
    str = str.replace(/<i>(.*?)<\/i>/gi, "''$1''");
    str = str.replace(/<b>(.*?)<\/b>/gi, "'''$1'''");
  }
  str = str.replace(/<br\/>/gi, "<br />");
  str = str.replace(/<br>/gi, "<br />");
                      
  return trim(str);
}

//formats links in standard fashion
function linkfixer(str, checkImages)
{ 
  str = str.replace(/\]\[/g, "] [");
  var m = str.match(/\[?\[[^\]]*?\]\]?/g);
  if (m)
  {
    for (var i = 0; i < m.length; i++)
    {
      var x = m[i].toString();
      var y = x;

      //internal links only
      if ( !y.match(/^\[?\[http:\/\//i) && !y.match(/^\[?\[image:/i) )
      {
        if (y.indexOf(":") == -1 && y.substr(0,3) != "[[_" && y.indexOf("|_") == -1)
        {
          if (y.indexOf("|") == -1)
            y = y.replace(/_/g, " ");
          else
            y = y.replace( y.substr(0, y.indexOf("|")), y.substr(0, y.indexOf("|")).replace(/_/g, " "));
        }  
      
        y = y.replace(/ ?\| ?/, "|").replace("|]]", "| ]]");
        
      }

      str = str.replace(x, y);
    }
  }

  //repair bad internal links
  str = str.replace(/\[\[ ?([^\]]*?) ?\]\]/g, "[[$1]]");
  str = str.replace(/\[\[([^\]]*?)( |_)#([^\]]*?)\]\]/g, "[[$1#$3]]");

  //repair bad external links
  str = str.replace(/\[?\[http:\/\/([^\]]*?)\]\]?/gi, "[http://$1]");
  str = str.replace(/\[http:\/\/([^\]]*?)\|([^\]]*?)\]/gi, "[http://$1 $2]");

  return trim(str);
}

//fixes images
function imagefixer(str)
{

  //remove external images
  str = str.replace(/\[?\[image:http:\/\/([^\]]*?)\]\]?/gi, "[http://$1]");

  //fix links within internal images
  var m = str.match(/\[?\[image:[^\[\]]*?(\[?\[[^\]]*?\]*?[^\[\]]*?)*?\]+/gi);
  if (m)
  {
    for (var i = 0; i < m.length; i++)
    {
      var x = m[i].toString();
      var y = x;

      y = y.replace(/^\[\[i/i, "I").replace(/\]\]$/, "");
      y = y.replace(/(\[[^\]]*?)$/, "$1]");
      y = linkfixer(y, true);
      y = "[[" + y + "]]";

      str = str.replace(x, y);
    }
  }

  return trim(str);
}

//simplifies some links e.g. [[Dog|dog]] to [[dog]] and [[Dog|dogs]] to [[dog]]s
function linksimplifyer(str){
  var m = str.match(/\[\[([^[]*?)\|([^[]*?)\]\]/g);
  if (m)
  {
    for (var i = 0; i < m.length; i++)
    {
      var n_arr = m[i].toString().match(/\[\[([^[]*?)\|([^[]*?)\]\]/);
      var n = n_arr[0];
      var a = n_arr[1];
      var b = n_arr[2];

      if (b.indexOf(a) == 0 || b.indexOf(TurnFirstToLower(a)) == 0)
      {
        var k = n.replace(/\[\[([^\]\|]*?)\|(\1)([\w]*?)\]\]/i, "[[$2]]$3");
        str = str.replace(n, k);
      }
    }
  }

  str = str.replace(/\[\[([^\]\|]+)\|([^\]\|]+)\]\]([A-Za-z\'][A-Za-z]*)([\.\,\;\:\"\!\?\s\n])/g, "[[$1|$2$3]]$4"); // ' // Help the syntax highlighter...

  return str;
}

//trim start and end, trim spaces from the end of lines
function trim(str) {
   str = str.replace(/ $/gm, "");
   return str.replace(/^\s*|\s*$/g, "");
}

//turns first character to lowercase
function TurnFirstToLower(input) {
  if (input != "")
  {
    var input = trim(input);
    var temp = input.substr(0, 1);
    return temp.toLowerCase() + input.substr(1, input.length);
  }
  else
    return "";
}

//entities that should never be unicoded
function noUnicodify(str) {
  str = str.replace(" &amp; ", " & ");
  str = str.replace("&amp;", "&amp;amp;").replace("&amp;lt;", "&amp;amp;lt;").replace("&amp;gt;", "&amp;amp;gt;").replace("&amp;quot;", "&amp;amp;quot;").replace("&amp;apos;", "&amp;amp;apos;");
  str = str.replace("&minus;", "&amp;minus;").replace("&times;", "&amp;times;");

  str = str.replace("&nbsp;", "&amp;nbsp;").replace("&thinsp;", "&amp;thinsp;").replace("&shy;", "&amp;shy;");
  str = str.replace("&prime;", "&amp;prime;");
  str = str.replace(/&(#0?9[13];)/, "&amp;$1");
  str = str.replace(/&(#0?12[345];)/, "&amp;$1");

  return str;
}

addOnloadHook(function () {
  if(mw.config.get('wgNamespaceNumber')==0&&document.forms.editform) {
    addPortletLink('p-cactions', 'javascript:format()', 'format', 'ca-format', 'Format article', '', document.getElementById('ca-edit'));
  }
});

/*</source>

[[Category:Wikipedia scripts]]
*/