Issue #19728 has been updated by janosch-x (Janosch Müller). I found that `enc-unicode.rb` deals with some inconsistent unicode data (i.e. some data which uses short property names and some data which uses long names), so it doesn't provide much useful context. I've made a PR to create documentation from the result instead: https://github.com/ruby/ruby/pull/7944 ---------------------------------------- Bug #19728: Automate (checking of) Regexp character property documentation https://bugs.ruby-lang.org/issues/19728#change-103559 * Author: duerst (Martin Dürst) * Status: Open * Priority: Normal * Assignee: duerst (Martin Dürst) * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- This came up in a discussion at https://github.com/ruby/ruby/pull/7923. The documentation at doc/regexp.rdoc currently contains a list of character properties that can be used in regular expressions. But there is no guarantee that this list is updated when the Unicode version is updated. One idea is to create a ruby equivalent of https://github.com/k-takata/Onigmo/blob/master/tool/update-doc.py. Another idea is to just write a test that checks enc/unicode/$UNICODE_VERSION/name2ctype.h against the relevant part of the documentation file. This might make it easier for the documentation to be rewritten while guaranteeing that no properties get forgotten. -- https://bugs.ruby-lang.org/