Bookmarklet Help: Creating a Find/Replace Bookmarklet

Question

I\'m trying to slightly modify this so that it prompts for the text to search for, followed by the text to replace with, and when all done processing, show a dialog box lett

Answer 1

This worked for me:

javascript:function%20htmlreplace(a,b,element){if(!element)element=document.body;var%20nodes=element.childNodes;for(var%20n=0;n<nodes.length;n++){if(nodes[n].nodeType==Node.TEXT_NODE){nodes[n].textContent=nodes[n].textContent.replace(new%20RegExp(a,'gi'),b);}else{htmlreplace(a,b,nodes[n]);}}}htmlreplace(prompt("Text%20to%20replace:","old"),prompt("Replacement%20text:","new"));

All I did was replace the old and new with a prompt() function. good bookmarklet.

Answer 2

Here is the most direct conversion of the original function to search/replace textarea and text inputs instead of HTML. I also added 'm' to regex and added alert('done') at end. However, I think that using 'm' may not solve your problem perfectly, but I may be wrong.

function htmlreplace(a, b, element) {
    if (!element) element = document.body;    
    var nodes = element.childNodes;
    for (var n=0; n<nodes.length; n++) {
        if ( nodes[n].type && (nodes[n].type.toLowerCase() == 'textarea' || nodes[n].type.toLowerCase() == 'text') ) {
            var r = new RegExp(a, 'gim');
            nodes[n].value = nodes[n].value.replace(r, b);
        } else {
            htmlreplace(a, b, nodes[n]);
        }
    }
}

htmlreplace(prompt('find'), prompt('replace'));
alert('done');

Here it is as a bookmarklet.

javascript:function htmlreplace(a,b,element){if(!element)element=document.body;var nodes=element.childNodes;for(var n=0;n<nodes.length;n++){if(nodes[n].type&&(nodes[n].type.toLowerCase()=='textarea'||nodes[n].type.toLowerCase()=='text')){var r=new RegExp(a,'gim');nodes[n].value=nodes[n].value.replace(r,b)}else{htmlreplace(a,b,nodes[n])}}}htmlreplace(prompt('find'),prompt('replace'));alert('done');

Answer 3

A search landed me here, and the stuff above is wrong (or at least outdated), and I went through the trouble of updating it until it worked, so I figured I'd paste it here:

javascript:var count=0;
function htmlreplace(a,b,element){
if(!element)element=document.body;
var nodes=element.childNodes;
for(var n=0;n<nodes.length;n++){
   if(nodes[n].type&&nodes[n].type.toLowerCase()=='textarea'){
      var r=new RegExp(a,'gim');
      if(nodes[n].value.match(r)){
        count++;
      }
      nodes[n].value=nodes[n].value.replace(r,b)
    }
    else if(nodes[n].nodeValue && nodes[n].nodeValue.length > 0){
      var r=new RegExp(a,'gim');
      if(nodes[n].nodeValue.match(r)){
        count++;
      }
      nodes[n].nodeValue=nodes[n].nodeValue.replace(r,b)
    }
    else{
      htmlreplace(a,b,nodes[n])
    }
  }
}
htmlreplace(prompt('find'),prompt('replace'));
alert('replaced '+count+' words.');

(Tested in Chrome) It's got a word count instead of just a 'done' message. I changed it to scan through all textNode elements. (I suppose MOST people wouldn't care about replacing all text on the page, but that's the use case that brought me here.)