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<div class="section" id="integration">
<h1>Integration<a class="headerlink" href="#integration" title="Permalink to this headline">¶</a></h1>
<p>Jinja2 provides some code for integration into other tools such as frameworks,
the <a class="reference external" href="http://babel.pocoo.org/">Babel</a> library or your favourite editor for fancy code highlighting.
This is a brief description of whats included.</p>
<p>Files to help integration are available
<a class="reference external" href="https://github.com/pallets/jinja/tree/master/ext">here.</a></p>
<div class="section" id="babel-integration">
<span id="id1"></span><h2>Babel Integration<a class="headerlink" href="#babel-integration" title="Permalink to this headline">¶</a></h2>
<p>Jinja provides support for extracting gettext messages from templates via a
<a class="reference external" href="http://babel.pocoo.org/">Babel</a> extractor entry point called <cite>jinja2.ext.babel_extract</cite>. The Babel
support is implemented as part of the <a class="reference internal" href="extensions.html#i18n-extension"><span class="std std-ref">i18n Extension</span></a> extension.</p>
<p>Gettext messages extracted from both <cite>trans</cite> tags and code expressions.</p>
<p>To extract gettext messages from templates, the project needs a Jinja2 section
in its Babel extraction method <a class="reference external" href="http://babel.pocoo.org/en/latest/messages.html#extraction-method-mapping-and-configuration">mapping file</a>:</p>
<div class="highlight-ini notranslate"><div class="highlight"><pre><span></span><span class="k">[jinja2: **/templates/**.html]</span>
<span class="na">encoding</span> <span class="o">=</span> <span class="s">utf-8</span>
</pre></div>
</div>
<p>The syntax related options of the <code class="xref py py-class docutils literal notranslate"><span class="pre">Environment</span></code> are also available as
configuration values in the mapping file. For example to tell the extraction
that templates use <code class="docutils literal notranslate"><span class="pre">%</span></code> as <cite>line_statement_prefix</cite> you can use this code:</p>
<div class="highlight-ini notranslate"><div class="highlight"><pre><span></span><span class="k">[jinja2: **/templates/**.html]</span>
<span class="na">encoding</span> <span class="o">=</span> <span class="s">utf-8</span>
<span class="na">line_statement_prefix</span> <span class="o">=</span> <span class="s">%</span>
</pre></div>
</div>
<p><a class="reference internal" href="extensions.html#jinja-extensions"><span class="std std-ref">Extensions</span></a> may also be defined by passing a comma separated list
of import paths as <cite>extensions</cite> value. The i18n extension is added
automatically.</p>
<div class="versionchanged">
<p><span class="versionmodified">Changed in version 2.7: </span>Until 2.7 template syntax errors were always ignored. This was done
since many people are dropping non template html files into the
templates folder and it would randomly fail. The assumption was that
testsuites will catch syntax errors in templates anyways. If you don’t
want that behavior you can add <code class="docutils literal notranslate"><span class="pre">silent=false</span></code> to the settings and
exceptions are propagated.</p>
</div>
</div>
<div class="section" id="pylons">
<h2>Pylons<a class="headerlink" href="#pylons" title="Permalink to this headline">¶</a></h2>
<p>With <a class="reference external" href="http://www.pylonshq.com/">Pylons</a> 0.9.7 onwards it’s incredible easy to integrate Jinja into a
Pylons powered application.</p>
<p>The template engine is configured in <cite>config/environment.py</cite>. The configuration
for Jinja2 looks something like that:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">jinja2</span> <span class="k">import</span> <span class="n">Environment</span><span class="p">,</span> <span class="n">PackageLoader</span>
<span class="n">config</span><span class="p">[</span><span class="s1">'pylons.app_globals'</span><span class="p">]</span><span class="o">.</span><span class="n">jinja_env</span> <span class="o">=</span> <span class="n">Environment</span><span class="p">(</span>
<span class="n">loader</span><span class="o">=</span><span class="n">PackageLoader</span><span class="p">(</span><span class="s1">'yourapplication'</span><span class="p">,</span> <span class="s1">'templates'</span><span class="p">)</span>
<span class="p">)</span>
</pre></div>
</div>
<p>After that you can render Jinja templates by using the <cite>render_jinja</cite> function
from the <cite>pylons.templating</cite> module.</p>
<p>Additionally it’s a good idea to set the Pylons’ <cite>c</cite> object into strict mode.
Per default any attribute to not existing attributes on the <cite>c</cite> object return
an empty string and not an undefined object. To change this just use this
snippet and add it into your <cite>config/environment.py</cite>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">config</span><span class="p">[</span><span class="s1">'pylons.strict_c'</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
</pre></div>
</div>
</div>
<div class="section" id="textmate">
<h2>TextMate<a class="headerlink" href="#textmate" title="Permalink to this headline">¶</a></h2>
<p>There is a <a class="reference external" href="https://github.com/mitsuhiko/jinja2-tmbundle">bundle for TextMate</a> that supports syntax highlighting for Jinja1 and Jinja2 for text based
templates as well as HTML. It also contains a few often used snippets.</p>
</div>
<div class="section" id="vim">
<h2>Vim<a class="headerlink" href="#vim" title="Permalink to this headline">¶</a></h2>
<p>A syntax plugin for <a class="reference external" href="http://www.vim.org/">Vim</a> exists in the Vim-scripts directory as well as the
<cite>ext</cite> folder at the root of the Jinja2 project. <a class="reference external" href="http://www.vim.org/scripts/script.php?script_id=1856">The script</a> supports Jinja1 and
Jinja2. Once installed two file types are available <cite>jinja</cite> and <cite>htmljinja</cite>.
The first one for text based templates, the latter for HTML templates.</p>
<p>Copy the files into your <cite>syntax</cite> folder.</p>
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<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Integration</a><ul>
<li><a class="reference internal" href="#babel-integration">Babel Integration</a></li>
<li><a class="reference internal" href="#pylons">Pylons</a></li>
<li><a class="reference internal" href="#textmate">TextMate</a></li>
<li><a class="reference internal" href="#vim">Vim</a></li>
</ul>
</li>
</ul>
<h3>Related Topics</h3>
<ul>
<li><a href="index.html">Documentation overview</a><ul>
<li>Previous: <a href="extensions.html" title="previous chapter">Extensions</a></li>
<li>Next: <a href="switching.html" title="next chapter">Switching from other Template Engines</a></li>
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