Error Installing Rdoc Documentation: Incompatible Encoding Regexp Match

error installing RDoc documentation: incompatible encoding regexp match

michael.rp almost had it, but no quotes on the environment string for Windows. The same solution for Linux appears in the link supplied by jerry. For Windows:

set RDOCOPT=--encoding=UTF-8

I put this in the RubyInstaller\Ruby1.9.3\setup_environment.bat file so it is always there.

Ruby: incompatible encoding regexp match

Just encode the regex in UTF-8:

str = 'é'
arr = str.split(/x/mu)
#=> ["é"]

Documentation: https://ruby-doc.org/core-2.3.1/Regexp.html#class-Regexp-label-Encoding

Regex Error - (incompatible encoding regexp match (UTF-8 regexp with ASCII-8BIT string)

The Net::HTTP standard library only returns binary (ASCII-8BIT) strings. See the long-standing feature request: Feature #2567: Net::HTTP does not handle encoding correctly. So if you want UTF-8 strings you have to manually set their encoding to UTF-8 with String#force_encoding:

source_code.force_encoding(Encoding::UTF_8)

If the website's character encoding isn't UTF-8 you have to implement a heuristic based on the Content-Type header or <meta>'s charset attribute but even then it might not be the correct encoding. You can validate a string's encoding with String#valid_encoding? if you need to deal with such cases. Thankfully most websites use UTF-8 nowadays.

Also as @WiktorStribiżew already wrote in the comments, the regexp encoding specifiers s (Windows-31J) and u (UTF-8) modifiers aren't necessary here and only very rarely are. Especially the latter one since modern Ruby defaults to UTF-8 (or, if sufficient, its subset US-ASCII) anyway. In other programming languages they may have a different meaning, e.g. in Perl s means single line.

Pushing rdoc documentation to rubygems.org

When you upload your gem into rubygems.org, it automatically uploads the documentation in rubydoc.info

The guide to upload the gem: http://guides.rubygems.org/publishing/

hope it helps

encoding and utf-8 exceptions after upgrade to Ruby 1.9.3 and rails 3.2

I had the same problem occuring "sometimes", I use now at the very top of each .rb files the following:

# encoding: UTF-8

class Whatever < ActiveRecord::Base
  ...
end

The problem occurs when the file contains one/several accent(s) (as a french guy, I sometimes use it in comments).

jekyll regeneration failed with unicode posts

chcp 65001 in cmd helps me everytime before running jekyll. But I think it is not full solution

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