django-linestripper removes blank / empty / whitespaced lines generated by template tags.

django == 1.4

 <h1>My list</h1>

 <ul>
 {% for item in items %}
     <li>{{ item }}</li>
 {% endfor %}
 </ul>

<h1>My list</h1>

<ul>

    <li>item 1</li>

    <li>item 2</li>

    <li>item 3</li>

</ul>

<h1>My list</h1>

<ul>
    <li>item 1</li>
    <li>item 2</li>
    <li>item 3</li>
</ul>

• Put the django_linestripper folder at the root of your app structure
• Edit settings.py:
• In TEMPLATE_LOADERS, add django_linestripper.stripper.Loader as the first loader
• In MIDDLEWARE_CLASSES, put django_linestripper.stripper.StripperMiddleware wherever you want
• You're done !

The following constants can be overriden in settings.py:

defaults to True

Indicates weither django-linestripper is enabled or not.

defaults to "__STRIPPER_TAG__"

A unique string that you don't use in your templates. It will be suppressed by the django-linestripper middleware.

defaults to False

Clear every non-generated whitespace metacharacter before \n. For instance:

\n\t\t\t\n
=> \n\t\t\t\n

\n\t\t\t\n
=> \n\n

• Step 1: tag empty lines with __STRIPPER_TAG__
• Step 2: wait for the rendered template
• Step 3: suppress blank lines and suppress __STRIPPER_TAG__

If your rendered template isn't part of the HttpResponse, the stripper middleware won't intercept the rendering. It can be a pain if you're using templates as mail templates.

This thread on DjangoProject.com talks about the subject in a very precise manner. A patch has been submitted but the validation process is very long. Please do not hesitate in contacting me when this whitespace issue is resolved.

I always dreamed of doing that.

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