es                      Expression substitution
matches                 Extract matching substrings
ore                     Oniguruma regular expressions
ore.dict                Get or set entries in the pattern dictionary
ore.escape              Escape regular expression special characters
ore.file                Use a file as a text source
ore.ismatch             Does text match a regex?
ore.lastmatch           Retrieve the last match
ore.search              Search for matches to a regular expression
ore.split               Split strings using a regex
ore.subst               Replace matched substrings with new text
