Regex#inspect does not show all flags

[HertzDevil]

Regex#inspect's format is based on regex literals themselves, so it handles the flags that can be applied to literals:

Regex.new("foo", :ignore_case) # => /foo/i
Regex.new("foo", :multiline)   # => /foo/m
Regex.new("foo", :extended)    # => /foo/x

but not the other Regex::CompileOptions flags:

Regex.new("foo", :anchored)     # => /foo/
Regex.new("foo", :no_utf_check) # => /foo/

In these cases perhaps it is better to fall back to a non-literal format?