From: Robert Klemme <shortcutter@...>
Date: 2009-12-05T02:27:15+09:00
Subject: Re: using heredoc string in erb

2009/12/4 jakemiles <jacob.miles@gmail.com>:
> Thanks!  The .chomp fixed it.

For me moving the "%>" to the next line fixed it.

> No, the intention isn't to create helper functions in Java.  The web
> page happens to be a tutorial on Java.  The helper function is a ruby
> helper that appliers google's syntaxhighlighting javascript thing to
> the provided block of text.
>
> The resulting code in the view, for posterity, is:
>
>  <%= code "java", <<-"CODE".chomp
>
>        // create a panel using a GridBagLayout
>        JPanel panel = new JPanel (new GridBagLayout());
>
>        // three labels on the first row
>        panel.add (new JLabel ("One"));
>        panel.add (new JLabel ("Two"));
>        panel.add (new JLabel ("Threeeee"));
>
> CODE
> %>
>
> And the helper function it calls is this:
>
>  def code(lang, block)
>    "<script type=\"syntaxhighlighter\" class=\"brush: #{lang}\"><!
> [CDATA[#{block}]]></script>"
>  end
>
> This turns the provided block of code into this HTML:
>
>  <script type="syntaxhighlighter" class="brush: java"><![CDATA[
>        // create a panel using a GridBagLayout
>        JPanel panel = new JPanel (new GridBagLayout());
>
>        // three labels on the first row
>        panel.add (new JLabel ("One"));
>        panel.add (new JLabel ("Two"));
>        panel.add (new JLabel ("Threeeee"));
> ]]></script>
>
> Which is the syntax for the syntaxhighlighter package that syntax-
> highlights the code in the page andmakes it look quite sharp.  The
> helper will also automagically include the right javascript file for
> the language of the formatted code block.

Erm, why do you need a helper function for this? Why not directly
place this in the ERB template

 <script type="syntaxhighlighter" class="brush: java"><![CDATA[
       // create a panel using a GridBagLayout
       JPanel panel = new JPanel (new GridBagLayout());

       // three labels on the first row
       panel.add (new JLabel ("One"));
       panel.add (new JLabel ("Two"));
       panel.add (new JLabel ("Threeeee"));
]]></script>


Or even do

<%= CODE_INTRO_JAVA %>
       // create a panel using a GridBagLayout
       JPanel panel = new JPanel (new GridBagLayout());

       // three labels on the first row
       panel.add (new JLabel ("One"));
       panel.add (new JLabel ("Two"));
       panel.add (new JLabel ("Threeeee"));
<%= CODE_END %>

with proper definitions of both constants?  What am I missing?

Kind regards

robert


PS: Please do not top post.


-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/