78 lines
1.7 KiB
ReStructuredText
78 lines
1.7 KiB
ReStructuredText
Language overview
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==================
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- ``{{ ... }}`` for variables to print to the template output
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- ``{% ... %}`` for tags
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- ``{# ... #}`` for comments not included in the template output
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Variables
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---------
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A variable can be defined in your template using the following:
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.. code-block:: html+django
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{{ variable }}
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Stencil will look up the variable inside the current variable context and
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evaluate it. When a variable contains a dot, it will try doing the
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following lookup:
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- Context lookup
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- Dictionary lookup
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- Array lookup (first, last, count, index)
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- Key value coding lookup
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- Type introspection
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For example, if `people` was an array:
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.. code-block:: html+django
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There are {{ people.count }} people. {{ people.first }} is the first
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person, followed by {{ people.1 }}.
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Filters
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~~~~~~~
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Filters allow you to transform the values of variables. For example, they look like:
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.. code-block:: html+django
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{{ variable|uppercase }}
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See :ref:`all builtin filters <built-in-filters>`.
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Tags
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----
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Tags are a mechanism to execute a piece of code, allowing you to have
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control flow within your template.
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.. code-block:: html+django
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{% if variable %}
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{{ variable }} was found.
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{% endif %}
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A tag can also affect the context and define variables as follows:
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.. code-block:: html+django
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{% for item in items %}
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{{ item }}
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{% endfor %}
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Stencil includes of built-in tags which are listed below. You can also
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extend Stencil by providing your own tags.
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See :ref:`all builtin tags <built-in-tags>`.
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Comments
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--------
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To comment out part of your template, you can use the following syntax:
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.. code-block:: html+django
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{# My comment is completely hidden #}
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