\///\/\ /\//\\/\//\ /\\/\//\\ \\// /// //\/\\

vimtext.js

{
// /\ / \ \/\ /\/\ /\/ \/ \/\/ 
//
// / i, /\ a, /\/ n, /\/\ m
// \ i, \/ v, \/\ h, \/\/ w
const swslash = {
 a: "/\\", i: "/", m: "/\\/\\", n: "/\\/",
};
const swback = {
 i: "\\", h: "\\/\\", v: "\\/", w: "\\/\\/",
};

const matches = (w) => {
  mflp: for(const schar of ["/", "\\"]) {
      let res = schar;

      for(const char of [...w.toLowerCase()]) {
		const sl = res.slice(-1) === "/" ? swslash : swback;
		if(!sl[char]) continue mflp;
		res += sl[char];
      }

	  return res.substr(1);
  }
}

console.log(document.body.textContent.split("\n").filter(matches).join("\n"))
}