.replace(/\n/g,"%20")
).replace(/%20+/g,"%20")
).replace(/%E2%80%99/g,"'")
).replace(/%F4%80%83%94/g,"ff")
).replace(/%F4%80%83%95/g,"fi")
).replace(/%F4%80%83%96/g,"fl")
).replace(/%F4%80%83%97/g,"ffi")
).replace(/%F4%80%83%98/g,"ffl")
).replace(/ die([ .!:;'])/g," dice$1")
).replace(/([.!?:;])%20*/g,"$1\n\n")
)jQuery使えるんで、他に何かあれば自分で改造して使えばいいと思うよ
以下がスクリプト(ブックマークのURLに設定)
javascript:!function(d,f,s){s=d.createElement("script");s.src="//j.mp/1bPoAXq";s.onload=function(){f(jQuery.noConflict(1))};d.body.appendChild(s)}(document,function($){$("#source").val($("#source").val().replace(/\n/g,"%20").replace(/%20+/g,"%20").replace(/%E2%80%99/g,"'").replace(/%F4%80%83%94/g,"ff").replace(/%F4%80%83%95/g,"fi").replace(/%F4%80%83%96/g,"fl").replace(/%F4%80%83%97/g,"ffi").replace(/%F4%80%83%98/g,"ffl").replace(/ die([ .!:;'])/g," dice$1").replace(/([.!?:;])%20*/g,"$1\n\n"))})