Super Markdown Parser (Ruby flavored)

markdown-parser.rb

def markdown_h(input)
  input.gsub(/^(?'hashtag'#+) (?'title'.*)/) do
    level = [$~[:hashtag].size, 6].min
    "<h#{level}>#{$~[:title]}</h#{level}>"
  end
end

def markdown_em(input)
  input.gsub(/\*(?'text'\S+)\*/) do
    "<em>#{$~[:text]}</em>"
  end
end

def markdown_strong(input)
  input.gsub(/\*\*(?'text'\S+)\*\*/) do
    "<strong>#{$~[:text]}</strong>"
  end
end

def markdown(input)
  input = markdown_h(input)
  input = markdown_strong(input)
  input = markdown_em(input)

  input
end

puts markdown(DATA.read)

__END__
# H1
## H2
### *H3*
#### H4
##### **H5**
###### H6
####### H7

* Ba**na**na
* *Plum*
* Apple

## Eurucamp *2015*

Lorem ipsum dolor **sit** amet, consectetur adipisicing elit, sed do eiusmod *tempor* incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in *reprehenderit in voluptate* velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Pair programming with @raluka at @eurucamp!