From: "thyresias (Thierry Lambert)" <noreply@...>
Date: 2021-11-08T18:33:06+00:00
Subject: [ruby-core:105972] [Ruby master Bug#18294] error when parsing regexp comment

Issue #18294 has been reported by thyresias (Thierry Lambert).

----------------------------------------
Bug #18294: error when parsing regexp comment
https://bugs.ruby-lang.org/issues/18294

* Author: thyresias (Thierry Lambert)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [i386-mingw32]
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
The following code generates the error "too short escaped multibyte character"
``` ruby
_re = /
  foo  # \M-ca
/x
```
Removing the \ or doubling it makes the error disappear.
Since this is in comment text, I would expect to be able to type anything there: am I missing something?



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