Code review recent commit re. quoting parameters

Related commit:
fa3a290

src/js/scriptlet-filtering-core.js

@@ -98,24 +98,18 @@ const patchScriptlet = (content, arglist) => {
     );
 };
 
+const requote = s => {
+    if ( /^(["'`]).+\1$|,/.test(s) === false ) { return s; }
+    if ( s.includes("'") === false ) { return `'${s}'`; }
+    if ( s.includes('"') === false ) { return `"${s}"`; }
+    if ( s.includes('`') === false ) { return `\`${s}\``; }
+    return `'${s.replace(/'/g, "\\'")}'`;
+};
+
 const decompile = json => {
-    const args = JSON.parse(json).map(s => {
-        if ( /^(["'`]).+\1$/.test(s) ) {
-            const c0 = s.charAt(0);
-            const inner = s.slice(1,-1);
-            if ( c0 === '"' || c0 === '`' ) {
-                return inner.includes("'")
-                    ? '`' + s.replace(/`/g, '\\`') + '`'
-                    : `'${s}'`;
-            }
-            return inner.includes('"')
-                ? '`' + s.replace(/`/g, '\\`') + '`'
-                : `"${s}"`;
-        }
-        return s.replace(/,/g, '\\,');
-    });
+    const args = JSON.parse(json);
     if ( args.length === 0 ) { return '+js()'; }
-    return `+js(${args.join(', ')})`;
+    return `+js(${args.map(s => requote(s)).join(', ')})`;
 };
 
 /******************************************************************************/