Serving Code Samples
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The document discusses the author's experience of coding during a boring holiday and the desire to share code snippets on a blog. The author outlines a method to display code samples on the blog using a helper function and HTML structure. Additionally, it touches on a controller setup for file retrieval in a web application.
![The Helper
def code_sample(filename)
@filename = filename
file = "#{options.views}/#{@category}/#{@name}/
files/#{filename}.txt"
if File.exist? file
@code_snippet= preserve(
escape_once(File.read(file))
)
extension = filename.split('.')[1]
@code_class = (
extension == "js" ? "javascript" : extension
)
end
haml(:"_code_sample", :layout => false)
end](https://image.slidesharecdn.com/code-samples-100112170204-phpapp01/85/Serving-Code-Samples-18-320.jpg)
![The Controller
get '/*/files/:filename.:filetype' do
filetype = params[:filetype] == "zip" ? "zip" :
"#{params[:filetype]}.txt"
file = "#{options.views}/#{params[:splat]}/files/
#{params[:filename]}.#{filetype}"
if File.exists? file
content_type 'text/plain', :charset => 'utf-8'
send_file(file)
else
raise not_found
end
end](https://image.slidesharecdn.com/code-samples-100112170204-phpapp01/85/Serving-Code-Samples-21-320.jpg)
Serving Code Samples
- 1. Serving Code Samples Lachstock
- 2. I was recently on holidays.
- 4. Holidays are boring So I wrote code.
- 5. Holidays are boring Then I thought I should blog about it.
- 6. Holidays are boring But I didn’t want to write a long article.
- 7. Holidays are boring Just a snippet.
- 8. Holidays are boring I needed code section
- 9. Holidays are boring I needed a code section!
- 10. Five busy days later...
- 11. The Problem I needed to display the actual code I wrote.
- 12. The Problem Ordered list with codey bits in LIs?
- 14. The Problem Surely someone has solved this?
- 15. The Problem Surely someone has solved this?
- 16. NO!
- 17. The Post %h2 HTML = code_sample("anchor.html")
- 18. The Helper def code_sample(filename) @filename = filename file = "#{options.views}/#{@category}/#{@name}/ files/#{filename}.txt" if File.exist? file @code_snippet= preserve( escape_once(File.read(file)) ) extension = filename.split('.')[1] @code_class = ( extension == "js" ? "javascript" : extension ) end haml(:"_code_sample", :layout => false) end
- 19. The Partial .code %pre %code{:class => @code_class}= @code_snippet %span.download Download file: %a{:href => "files/#{@filename}"}= @filename
- 20. The Browser <h2>HTML</h2> <div class="code"> <pre> <code class="html"><a href="/ feeds/articles/" id="feed- button">
 <span>Subscribe</span>
</ a></code></pre> <span class="download"> Download file: <a href="files/anchor.html"> anchor.html </a> </span> </div>
- 21. The Controller get '/*/files/:filename.:filetype' do filetype = params[:filetype] == "zip" ? "zip" : "#{params[:filetype]}.txt" file = "#{options.views}/#{params[:splat]}/files/ #{params[:filename]}.#{filetype}" if File.exists? file content_type 'text/plain', :charset => 'utf-8' send_file(file) else raise not_found end end
- 22. Questions?