Batch renaming sub-layers in Illustrator

[Twinkl5C5F]

Hello, I have hundreds of files that require layers renaming from target1 at the bottom of the layers list to the top in sequential order. For example: target1, target 2, target 3 until it reaches the top. I've searched high and low for a script for this, does anyone have one I can use? 

Thanks in advance for any help.

 

[Twinkl5C5F]

 They could also be objects/paths this is what it looks like from the top if that helps.

[Twinkl5C5F · Accepted solution]

This one almost does it: 

var ItemRenamer, itemRenamer;

ItemRenamer = (function() {
function ItemRenamer() {

if ( app.activeDocument.selection.length > 0 ) {

this.replacements = [
prompt( 'What would you like to replace?\nEmpty if you are renaming instead of replacing.', 'Eg: source.' ),
prompt( 'What would you like to replace it with?\nUse %i placeholder to auto-increment naming. "name-%i" will name items: "name-1", "name-2", etc.', 'Eg: replacement, or replacement-%i' )
];

this.renameItems( app.activeDocument.selection );

} else {
alert( 'Select the items you would like to be renamed. You can select a Layer to rename all the items inside it.' );
}
}

ItemRenamer.prototype.renameItems = function( items ) {
var _i, _results, counting, regxp;

_results = [];
regxp = new RegExp( '%i', 'i' );
counting = this.replacements[1].match( regxp ) ? prompt( 'Start counting at:', '1' ) : 0;

for (_i = 0; _i < items.length; _i++) {
nb = parseInt( _i ) + parseInt( counting );
origin = this.replacements[0];
replacement = this.replacements[1].match( regxp ) ? this.replacements[1].replace( regxp, ( '' + nb ) ) : this.replacements[1];

// Renaming.
if ( origin === '' ) {
_results.push( items[_i].name = replacement );
}
// Replacing.
else {
_results.push( items[_i].name = items[_i].name.replace( origin, replacement ) );
}
}

return _results;
};

return ItemRenamer;

})();

itemRenamer = new ItemRenamer();

[Twinkl5C5F]

This works if you refresh it. I then reversed the layer order using the 'reverse order' option in the layer menu.

[Kurt Gold]

You may also try this approach provided by Sergey Osokin.

https://github.com/creold/illustrator-scripts#renameitems