fixup: code points instead of code units

Author: ljharb

spec.emu

@@ -30,12 +30,12 @@ contributors: Jordan Harband
           1. Let _escapedList_ be a new empty List.
           1. For each code point _c_ in _cpList_, do
             1. If _escapedList_ is empty and _c_ is matched by |DecimalDigit|, then
-              1. Append code unit U+005C (REVERSE SOLIDUS) to _escapedList_.
-              1. Append code unit U+0078 (LATIN SMALL LETTER X) to _escapedList_.
-              1. Append code unit U+0033 (DIGIT THREE) to _escapedList_.
+              1. Append code point U+005C (REVERSE SOLIDUS) to _escapedList_.
+              1. Append code point U+0078 (LATIN SMALL LETTER X) to _escapedList_.
+              1. Append code point U+0033 (DIGIT THREE) to _escapedList_.
               1. Append _c_ to _escapedList_.
             1. Else,
-              1. Append the code units in EncodeForRegExpEscape(_c_) to _escapedList_.
+              1. Append the code points in EncodeForRegExpEscape(_c_) to _escapedList_.
           1. Return CodePointsToString(_escapedList_).
         </emu-alg>
 
@@ -47,32 +47,38 @@ contributors: Jordan Harband
       <emu-clause id="sec-encode" type="abstract operation">
         <h1>
           EncodeForRegExpEscape (
-            _c_: a code unit,
-          ): a List of code units
+            _c_: a code point,
+          ): a List of code points
         </h1>
         <dl class="header">
           <dt>description</dt>
           <dd>If the code unit represents a RegExp punctuator that needs escaping, or ASCII whitespace, it produces the code units for *"\x"* followed by the relevant escape code. If the code unit represents non-ASCII white space, it produces the code units for *"\u"* followed by the relevant escape code. Otherwise, it returns a List containing the original code unit.</dd>
         </dl>
 
         <emu-alg>
-          1. Let _codeUnits_ be a new empty List.
+          1. Let _codePoints_ be a new empty List.
           1. Let _punctuators_ be the following String, which consists of every ASCII punctuator except U+005F (LOW LINE): *"(){}[]|,.?\*+-^$=<>\/#&!%:;@~'"`"*.
           1. Let _toEscape_ be StringToCodePoints(_punctuators_).
           1. If _toEscape_ contains _c_ or _c_ is matched by |WhiteSpace|, then
-            1. Append code unit U+005C (REVERSE SOLIDUS) to _codeUnits_.
+            1. Append code point U+005C (REVERSE SOLIDUS) to _codePoints_.
             1. Let _hex_ be Number::toString(𝔽(_c_), 16).
             1. If the length of _hex_ is 1 or 2, then
               1. Set _hex_ to StringPad(_hex_, 2, *"0"*, ~start~).
-              1. Append code unit U+0078 (LATIN SMALL LETTER X) to _codeUnits_.
+              1. Append code point U+0078 (LATIN SMALL LETTER X) to _codePoints_.
+              1. Append the code points in StringToCodePoints(_hex_) to _codePoints_.
+            1. Else if the length of _hex_ is > 4, then
+              1. Append code point U+0075 (LATIN SMALL LETTER U) to _codePoints_.
+              1. Append code point U+007B (LEFT CURLY BRACKET) to _codePoints_.
+              1. Append the code points in StringToCodePoints(_hex_) to _codePoints_.
+              1. Append code point U+007D (RIGHT CURLY BRACKET) to _codePoints_.
             1. Else,
               1. Assert: The length of _hex_ is at most 4.
               1. Set _hex_ to StringPad(_hex_, 4, *"0"*, ~start~).
-              1. Append code unit U+0075 (LATIN SMALL LETTER U) to _codeUnits_.
-            1. Append the code units in _hex_ to _codeUnits_.
+              1. Append code point U+0075 (LATIN SMALL LETTER U) to _codePoints_.
+              1. Append the code points in StringToCodePoints(_hex_) to _codePoints_.
           1. Else,
-            1. Append _c_ to _codeUnits_.
-          1. Return _codeUnits_.
+            1. Append _c_ to _codePoints_.
+          1. Return _codePoints_.
         </emu-alg>
       </emu-clause>
       </ins>