writing document fails (no method error "present?")

[tamagokun]

Trying to generate an EDI document using the sample code from the documentation:

b.machine.zipper.tap do |z|
  # The :component, and :repetition parameters can also be specified as elements
  # of the ISA segment, at `b.ISA(...)` above. When generating a document from
  # scratch, :segment and :element must be specified -- if you've parsed the doc
  # from a file, these params will default to whatever was used in the file, or
  # you can override them here.
  separators =
    Stupidedi::Reader::Separators.build :segment    => "~\n",
                                        :element    => "*",
                                        :component  => ":",
                                        :repetition => "^"

  # You can also serialize any subtree within the document (e.g., everything inside
  # some ST..SE transaction set, or a single loop. Here, z.root is the entire tree.
  w = Stupidedi::Writer::Default.new(z.root, separators)
  w.write($stdout)
end

Getting the following no method error:

/Users/mkruk/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/stupidedi-1.2.6/lib/stupidedi/reader/separators.rb:53:in `select': undefined method `present?' for ":":String (NoMethodError)
Did you mean?  prepend
    from /Users/mkruk/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/stupidedi-1.2.6/lib/stupidedi/reader/separators.rb:53:in `characters'
    from /Users/mkruk/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/stupidedi-1.2.6/lib/stupidedi/writer/default.rb:19:in `write'
    from script/generate_997.rb:59:in `block in <main>'
    from /Users/mkruk/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/stupidedi-1.2.6/lib/stupidedi/either.rb:152:in `deconstruct'
    from /Users/mkruk/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/stupidedi-1.2.6/lib/stupidedi/either.rb:127:in `tap'
    from script/generate_997.rb:44:in `<main>'

Thought that it was my ruby version, upgraded to 2.3.0, but still no luck. It seems like maybe this is an issue with refinements? Any help would be appreciated.

[kputnam]

Ah, yes it is caused by refinements. It seems indirectly invoking a refinement method via &:present? won't work, but I think this can be fixed by spelling it out .select{|x| x.present? }.

I should have time to address this and other places it might occur within a day or two. Thanks for filing a bug!

[kputnam]

This was the only instance where a refinement method was called indirectly (the others were fixed previously). It's fixed in master and @irobayna or I will do a release soon. Thanks again for the report.

[tamagokun]

Excellent, thanks!