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Bug #18686
openRegexp supporting unexpected age properties in Ruby < 3.2
Description
I've encountered this on GitHub Actions running Ubuntu 20. I cannot reproduce it locally on Darwin/arm64.
It is a weird bug and far from critical, but it might indicate some underlying problem.
I've found that ...
- all Ruby versions below 3.1 allow
/\p{age=14.0}/
- this is unexpected because age 14 was only added in Ruby 3.2
- Ruby seems to parse this as
age=10.0
, at least it matches exactly these codepoints
- all Ruby versions below 3.2 allow some unexpected values for age
- allowed values are e.g.
age=21.0
,age=41.0
,age=99.0
(depending on Ruby version) - on Ruby 3.1,
age=99.0
matches exactly the same codepoints asage=11.0
- allowed values are e.g.
- ruby-head doesn't seem to allow unexpected age values (i've only tested values ending in
.0
)
I've set up a minimal reproduction here:
https://github.com/jaynetics/ruby_age_property_bug_repro
with the unexpected results visible here:
https://github.com/jaynetics/ruby_age_property_bug_repro/actions/runs/2115522407
and here:
https://github.com/jaynetics/ruby_age_property_bug_repro/actions/runs/2116785501
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