From 65631adba9a6aeff2f0997c9d46db5be3b2e83a7 Mon Sep 17 00:00:00 2001
From: Marshall Lochbaum <mwlochbaum@gmail.com>
Date: Fri, 21 Aug 2020 21:37:38 -0400
Subject: Use Base64 encoding for code in URLs

---
 docs/repl.js | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

(limited to 'docs')

diff --git a/docs/repl.js b/docs/repl.js
index 2de1b1fb..2580d325 100644
--- a/docs/repl.js
+++ b/docs/repl.js
@@ -65,7 +65,8 @@ doc.kb.onmousedown = ev => {
 }
 
 if (doc.perm) doc.perm.onmouseover = doc.perm.onfocus = () => {
-  doc.perm.href='#code='+escape(doc.code.value)
+  let b=(new TextEncoder()).encode(doc.code.value);
+  doc.perm.href='#code='+btoa(String.fromCharCode(...b));
 }
 
 let demo = 0;
@@ -89,11 +90,14 @@ if (doc.demo) doc.demo.onclick = () => {
 }
 
 if (location.hash) {
-  let hp={};
-  location.hash.substring(1).split(',').map(s=>{
-    let[k,v]=s.split('=');hp[k]=unescape(v)
+  let code='', run=0;
+  location.hash.slice(1).split('&').map(s => {
+    if (s.slice(0,5)==='code=') code=s.slice(5);
+    if (s.slice(0,3)==='run') run=1;
   });
-  doc.code.value = hp.code||'';
-  if (hp.run) repl();
+  let b=atob(code);
+  b=new Uint8Array([...b].map(c=>c.charCodeAt(0)));
+  doc.code.value = (new TextDecoder()).decode(b);
+  if (run) repl();
 }
 doc.code.focus();
-- 
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