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Message from discussion pyTenjin Feature Requests
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makoto kuwata  
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 More options Jun 6 2009, 11:18 pm
From: makoto kuwata <kwa...@gmail.com>
Date: Sat, 6 Jun 2009 20:18:57 -0700 (PDT)
Local: Sat, Jun 6 2009 11:18 pm
Subject: Re: pyTenjin Feature Requests
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On 2009-06-07 12:31, Steve <unetright.thebas...@xoxy.net> wrote:

>  Is there anyway
> your subclass technique might be modified to support the following:
(...snip...)
> Notice in this example that bool2 and bool3 conditionals appear and
> different indentations because of the structure of the html.  But in
> python, they must appear at equal indentation levels.  Is there any
> way to handle that?

Here you are:

main.py:

    import tenjin    # 0.7.0 or 0.8.0
    from tenjin.helpers import *

    class MyTemplate(tenjin.Template):

        def add_stmt(self, buf, code):
            if buf:
                s = buf[-1]
                if s and s.isspace() and s.find("\n") < 0 and len(s) >
len(self._spaces):
                    buf[-1:-1] = (self._spaces, "if True: ## dummy
\n", )
            if self.newline == "\r\n":
                code = code.replace("\r\n", "\n")
            buf.append(code)

    if __name__ == '__main__':
        tenjin.Engine.templateclass = MyTemplate
        engine = tenjin.Engine()
        template = engine.get_template("ex.pyhtml")
        print(template.script)

ex.pyhtml:

    <html>
      <body>
        <?py if bool1: ?>
          <div class="a">
            <div class="b">
              <p>
                text line A
                <?py if bool2: ?>
                  text line B
                <?py #endif bool2 ?>
                text line C
              </p>
            </div>
            <?py if bool3: ?>
              <p>
                text line D
              </p>
            <?py #endif bool3 ?>
          </div>
        <?py #endif bool1 ?>
      </body>
    </html>

result:

    $ python main.py
    _buf.extend(('''<html>
      <body>\n''', ));
    if True: ## dummy
        if bool1:
            _buf.extend(('''      <div class="a">
            <div class="b">
              <p>
                text line A\n''', ));
            if True: ## dummy
                if bool2:
                    _buf.extend(('''              text line B
\n''', ));
                #endif bool2
                _buf.extend(('''            text line C
              </p>
            </div>\n''', ));
            if bool3:
                _buf.extend(('''          <p>
                text line D
              </p>\n''', ));
            #endif bool3
            _buf.extend(('''      </div>\n''', ));
        #endif bool1
        _buf.extend(('''  </body>
    </html>\n''', ));

You can see that dummy if-statement is inserted before
'if bool1:' and 'if bool2:'.
Notice that this makes line numbers changed.
For exaple if you have an error on line 10, it may be
reported as line 11 or 12.

I hope this helps you.

--
regards,
makoto kuwata


 
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