End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Regexp#options
rxp.options → integer
re.c
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static VALUE
rb_reg_options_m(VALUE re)
{
int options = rb_reg_options(re);
return INT2NUM(options);
}
Returns the set of bits corresponding to the options used when creating this Regexp (see Regexp::new for details. Note that additional bits may be set in the returned options: these are used internally by the regular expression code. These extra bits are ignored if the options are passed to Regexp::new.
Example
Regexp::IGNORECASE #=> 1 Regexp::EXTENDED #=> 2 Regexp::MULTILINE #=> 4 /cat/.options #=> 0 /cat/ix.options #=> 3 Regexp.new('cat', true).options #=> 1 /\xa1\xa2/e.options #=> 16 r = /cat/ix Regexp.new(r.source, r.options) #=> /cat/ix