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#3192 — 21.2.1 Patterns: Allow to escape $ in IdentityEscape


21.2.1 Patterns, IdentityEscape:

IdentityEscape should allow to escape $ because it's also a SyntaxCharacter.

Maybe change grammar to this alternative?
---
IdentityEscape[U] ::
[+U] SyntaxCharacter
[~U] SourceCharacter but not UnicodeIDContinue or _
---

That way the extra rules for <ZWJ> and <ZWNJ> can be removed, too.


fixed in rev28 editor's draft


fixed in rev28