USER:TOPBANANA REGEXREPLACE.JS

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/*

  This is a slightly modified copy of [[User:Gerbrant/edit/regexReplace.js]] as I couldn't

  make the original do what I wanted.

*/



// Add some useful styles

mw.util.addCSS( 'span.GerbrantEditRegexReplaceHit{font-weight:bold;background:lightsteelblue}');

mw.util.addCSS( 'span.GerbrantEditRegexReplaceHitOff{font-weight:bold;background:mistyrose}');

mw.util.addCSS( 'span.GerbrantEditRegexReplaceMaskFailed{font-weight:normal;color:red}');



function createRegexControls()

{

   var lang, textBox = document.getElementById("wpTextbox1");

   if(!textBox) return;



    str = {

         finished: "Finished; $1 items were replaced.",

         finished2: "Finished; $1 out of $2 items were replaced.",

         notFound: "Requested text was not found.",

         replace: "Find",

         replaceSel: "Replace",

         errorNoCheckBox: "Cannot find the corresponding checkbox.",

         textHasChanged: "Warning! The text has changed after 'Replace...' was clicked. These changes will be lost during replacement. Do you want to continue?",

         looksLikeFunction: "Warning! The text you intend to use to replace the matched text looks like a JavaScript function. Are you really sure you want to use this as replacement text, and not as a replacement function?",

         maskFailed: "Mask failed: $1",

         useRepFun: "< function >"

      };





   var mask, regex, text, minFrag = 30, minDel = 10, repFun;



   var results = document.createElement("DIV");

   var tbRegex = document.createElement("INPUT");

   tbRegex.id = "tbRegex_SearchTextBox";



   var hl = document.createElement("INPUT");

   hl.type = "checkbox";

   hl.id = "tbRegex_SearchCaseSensitive"



   var rep = document.createElement("DIV");

   rep.style.display = "none";

   rep.style.whiteSpace = "nowrap";



   function returnTrue(){ return true; }



   function evalError(e){ alert(e.message); }



   function getMaskAndRegex(t)

   {

      var p = t.indexOf("**"), r;

      if(p < 0) return returnTrue, t];

      else

      {

         try{ eval("r=" + t.slice(0, p)) }

         catch(x){ evalError(x); r = returnTrue; }

         return r, t.slice(p + 2)];

      }

   }



   function findMatches()

   {

      var m = [], r = [], i = 0;

      text = textBox.value;



      var t = text.replace(regex, function(a)

      {

         try

         {

            if(!mask.apply(null, arguments)) return a;

         }

         catch(e)

         {

            m.push(a + ' \u0001span class="GerbrantEditRegexReplaceMaskFailed">(' + str.maskFailed.replace("$1", e.message) + ')\u0001/span>');

            return "\u0001";

         }

         m.push(a);

         return "\u0001";

      }).split("\u0001");



      if(m.length == 0)

      {

         results.innerHTML = str.notFound;

         return;

      }



      if(t0].length > minFrag + minDel)

      {

         r.push(" \u2026 ");

         r.push(t0].slice(-minFrag));

      }

      else

         r.push(t0]);

      while(true)

      {

         r.push('\u0001span class="GerbrantEditRegexReplaceHit">\u0001input type="checkbox" checked id="Gerbrant-errCB');

         r.push(i);

         r.push('" onclick="Gerbrant.edit.regexReplace.toggleCB(this)">');

         r.push(mi]);

         r.push('\u0001/span>');

         if(++i >= m.length) break;

         if(ti].length > 2 * minFrag + minDel)

         {

            r.push(ti].slice(0, minFrag));

            r.push(" \u2026 ");

            r.push(ti].slice(-minFrag));

         }

         else

            r.push(ti]);

      }

      if(ti].length > minFrag + minDel)

      {

         r.push(ti].slice(0, minFrag));

         r.push(" \u2026 ");

      }

      else

         r.push(ti]);



      rep.style.display = "";

      onResize();

      results.innerHTML = r.join("").replace(

         /&/g, "&amp;").replace(

         /</g, "&lt;").replace(

         /\u0001/g, "<").replace(

         /\n[ \t]/g, "\n&nbsp;").replace(

         /[ \t](?=[ \t])/g, "&nbsp;").replace(

         /\n/g, "<br>");

   }



   function getRegexAndFind()

   {

      mask = getMaskAndRegex(tbRegex.value);

      regex = new RegExp(mask1], hl.checked ? "g" : "ig");

      mask = mask0];

      findMatches();

   }



   var ok = document.createElement("INPUT");

   ok.type = "button";

   ok.value = str.replace;

   ok.onclick = getRegexAndFind;

   ok.id = "tbRegex_FindButton";



   var div = document.createElement("DIV");

   div.style.whiteSpace = "nowrap";

   div.appendChild(tbRegex);

   div.appendChild(hl);

   div.appendChild(ok);



   var tbReplace = document.createElement("INPUT");

        tbReplace.id = "tbRegex_ReplaceTextBox";



   

   var chkJS = document.createElement("INPUT");

   chkJS.type = "checkbox";



   function doReplace()

   {

      var rjs = chkJS.checked, i = 0, j = 0, r, nt, ohno = false;

      if(text != textBox.value) if(!confirm(str.textHasChanged)) return;

      r = tbReplace.value;

      if(rjs)

         if(r == str.useRepFun) r = repFun;

         else try{ eval("r=" + r); }

         catch(x){ evalError(x); return; }

      else if(r == str.useRepFun || /^\s*function\s*\([0-9A-Za-z$_, ]*\)\s*\{/.test(r)) if(!confirm(str.looksLikeFunction)) return;

      try

      {

         nt = text.replace(regex, function(a)

         {

            try{ if(!mask.apply(null, arguments)) return a; }catch(e){/* mask failed; assume true */}

            var c = document.getElementById("Gerbrant-errCB" + i++);

            if(c)

               if(c.checked)

               {

                  j++;

                  if(rjs)

                     return r.apply(null, arguments);

                  else return r;

               }

               else return a;

            else ohno = true;

         });

      }

      catch(e)

      {

         alert(e.message);

         return;

      }

      if(ohno)

      {

         alert(str.errorNoCheckBox);

         return;

      }

      if(j < i) results.innerHTML = str.finished2.replace("$1", j).replace("$2", i);

      else results.innerHTML = str.finished.replace("$1", j);

      rep.style.display = "none";

      textBox.value = nt;

   }



   var finish = document.createElement("INPUT");

   finish.type = "button";

   finish.value = str.replaceSel;

   finish.onclick = doReplace;



   rep.appendChild(tbReplace);

   rep.appendChild(chkJS);

   rep.appendChild(finish);



   textBox.parentNode.insertBefore(div, textBox);

   textBox.parentNode.insertBefore(results, textBox);

   textBox.parentNode.insertBefore(rep, textBox);



   function onResize()

   {

      finish.style.height = ok.style.height = tbRegex.offsetHeight + "px";

      tbRegex.style.width = textBox.offsetWidth - ok.offsetWidth - hl.offsetWidth - 14 + "px";

      tbReplace.style.width = textBox.offsetWidth - finish.offsetWidth - chkJS.offsetWidth - 14 + "px";

   }

   onResize();

//   hookEvent("resize", onResize);

}

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