Issue #19904 has been updated by nobu (Nobuyoshi Nakada). https://github.com/nobu/ruby/tree/multiple-regexp-encodings ---------------------------------------- Feature #19904: Deprecate or warn on multiple regular expression encodings https://bugs.ruby-lang.org/issues/19904#change-104787 * Author: tenderlovemaking (Aaron Patterson) * Status: Open * Priority: Normal ---------------------------------------- It seems like you can pass multiple encoding flags to regular expression literals, but I think this should be a warning or possibly syntax error. For example: ```ruby x = /foo/nu p x.encoding ``` `n` says the RE should be ASCII-8BIT, and `u` says it should be UTF-8. The last flag wins, so in this case the regular expression gets UTF-8 encoding. However, I think it should be a warning or even a syntax error if you specify multiple encoding options on a regular expression. It seems like a mistake if programmers specify multiple. Thanks! -- https://bugs.ruby-lang.org/