# \<!-- foo --\> in RDoc

**URL:** <https://www.ruby-forum.com/t/foo-in-rdoc/74518>\
**Category:** Ruby\
**Created:** [November 7, 2006, 10:46am UTC](https://www.ruby-forum.com/t/foo-in-rdoc/74518 "2006-11-07T10:46:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Christoffer\_S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/bb73d2/32.png) [@Christoffer\_S](https://www.ruby-forum.com/u/Christoffer_S)\
**Post date:** [November 7, 2006, 10:46am UTC](https://www.ruby-forum.com/t/foo-in-rdoc/74518/1 "2006-11-07T10:46:50Z")

</div>

Running [0] through RDoc raises the exception [1].

Questions:

1. What special meaning does have in RDoc? Is it for  
inserting (later invisible) comments in the documentation? Where can I  
read more about it? Why doesn’t it work?

2. How can I insert verbatim?

– 0 –

# Test

# 

def test() end

– 1 –

/rdoc/markup/simple\_markup/to\_html.rb:230:in `convert_special': Unhandled special: Special: type=17, text="<!-- foo -->" (RuntimeError) from <snip>/rdoc/markup/simple_markup/to_html.rb:180:in`convert\_flow’  
from /1.8/rdoc/markup/simple\_markup/to\_html.rb:172:in  
`each’

Thanks,