Bug #20986: Bug in Prism parser with `?\C`

• Status: Closed
• Assignee: prism
• Target version: -
• Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN

[tenderlovemaking (Aaron Patterson)]

Prism output is this:

$ ./miniruby -e 'p ?\C-\]'
"]"

Parse.y output is this:

$ ./miniruby --parser=parse.y -e 'p ?\C-\]'
"\u001D"

[zenspider (Ryan Davis)]

Caught via ruby_parser's lexer tests

[kddnewton (Kevin Newton)]

https://github.com/ruby/prism/pull/3349

[kddnewton (Kevin Newton)]

• Status changed from Open to Closed

Applied in changeset git|4d8c9c131021316b854c4c8b877110d5584069d3.

---

[ruby/prism] Handle escaped characters after controls

Fixes [Bug #20986]

https://github.com/ruby/prism/commit/fd0c563e9e