At work, we have a catalog of markup and CSS and any ruby helpers. I wrote this helper for it which takes a code string and spits it out, evals it, and provides the eval’ed html wrapped and indented. The code-highligher does all the highlighting.
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def code_helper(code) help_block = %{ <pre class="helper">n<code class="ruby">n<%= #{h(code)} %>n</code>n</pre> } result = instance_eval code, "generated code (#{__FILE__}:#{__LINE__})" result_block = %{ <div class="eval">#{result}</div> } doc = REXML::Document.new(result) markup = "" doc.write(markup, 2) markup_block = %{ <pre class="markup">n<code class="html">n#{h(markup)}n</code>n</pre>n } %{ #{help_block} #{markup_block} #{result_block} } end |
And usage:
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<%= code_helper %{ will_paginate(@count, @per_page, @page_num, { :extra_param => "extra1" }) } %> |
would display the code, the (escaped) markup that it generates, and then the straight up html.
