String Buffering Issue

Ruby
1

This is an example snippet from a library im working on
example.rb · GitHub I need to be able to ‘buffer’ or collect
the results without yielding an object to any number of nested blocks.

I know this can be done with method_missing etc but my brain hurts haha
and for some stupid reason im stuck with this issue and have the
incorrect output below

Output:

2

On 29.06.2009 22:39, Tj Holowaychuk wrote:

    • It seems you are trying to solve not a buffering problem but rather want
    some kind of context present for every tag you generate. You can do so
    by having the context in an object.

    class Context
    def initialize
    @out = “”
    end

    def tag(name, &b)
    if b
    @out << “<” << name << “>”
    instance_eval(&b)
    @out << “</” << name << “>”
    else
    @out << “<” << name << “/>”
    end
    end

    def text(s)
    @out << s
    end
    end

    def markup(&b)
    c = Context.new
    c.instance_eval(&b)
    c
    end

    mup = markup do
    tag “foo” do
    tag “bar” do
    text “blah”
    end

     tag "empty"

    end
    end

    Kind regards

    robert

    3

    Thanks for the reply!

    Buffer is a bad choice of wording on my part (lack of a better name for
    the module).

    The library is http://github.com/visionmedia/tagz/tree/master which is
    used by http://github.com/visionmedia/tagz/tree/master

    Tagz is the one with the Tagz::Buffer module with this issue. The code
    is pretty much the same as what I posted above. Everything works fine
    until a method uses #tag to create nested tags, for example in Formz the
    #fieldset method returns fieldset markup and a legend in the markup as
    well so two calls to #tag in my current version start to duplicate
    markup

    Hope that sort of makes sense :s