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This module implements two template language syntaxes, at least for a certain
transitional period. `OldTextTemplate` (aliased to just `TextTemplate`) defines
a syntax that was inspired by Cheetah/Velocity. `NewTextTemplate` on the other
hand is inspired by the syntax of the Django template language, which has more
explicit delimiting of directives, and is more flexible with regards to
white space and line breaks.

In a future release, `OldTextTemplate` will be phased out in favor of
`NewTextTemplate`, as the names imply. Therefore the new syntax is strongly
recommended for new projects, and existing projects may want to migrate to the
new syntax to remain compatible with future Genshi releases.
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    with a ``#`` sign, directives and commenbtsr are enclosed in delimiter pairs
    (by default ``{% ... %}`` and ``{# ... #}``, respectively).
    
    Variable substitution uses the same interpolation syntax as for markup
    languages: simple references are prefixed with a dollar sign, more complex
    expression enclosed in curly braces.
    
    >>> tmpl = NewTextTemplate('''Dear $name,
    ... 
    ... {# This is a comment #}
    ... We have the following items for you:
    ... {% for item in items %}
    ...  * ${'Item %d' % item}
    ... {% end %}
    ... ''')
    >>> print(tmpl.generate(name='Joe', items=[1, 2, 3]).render(encoding=None))
    Dear Joe,
    <BLANKLINE>
    <BLANKLINE>
    We have the following items for you:
    <BLANKLINE>
     * Item 1
    <BLANKLINE>
     * Item 2
    <BLANKLINE>
     * Item 3
    <BLANKLINE>
    <BLANKLINE>
    
    By default, no spaces or line breaks are removed. If a line break should
    not be included in the output, prefix it with a backslash:
    
    >>> tmpl = NewTextTemplate('''Dear $name,
    ... 
    ... {# This is a comment #}\
    ... We have the following items for you:
    ... {% for item in items %}\
    ...  * $item
    ... {% end %}\
    ... ''')
    >>> print(tmpl.generate(name='Joe', items=[1, 2, 3]).render(encoding=None))
    Dear Joe,
    <BLANKLINE>
    We have the following items for you:
     * 1
     * 2
     * 3
    <BLANKLINE>
    
    Backslashes are also used to escape the start delimiter of directives and
    comments:

    >>> tmpl = NewTextTemplate('''Dear $name,
    ... 
    ... \\{# This is a comment #}
    ... We have the following items for you:
    ... {% for item in items %}\
    ...  * $item
    ... {% end %}\
    ... ''')
    >>> print(tmpl.generate(name='Joe', items=[1, 2, 3]).render(encoding=None))
    Dear Joe,
    <BLANKLINE>
    {# This is a comment #}
    We have the following items for you:
     * 1
     * 2
     * 3
    <BLANKLINE>
    
    :since: version 0.5
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    >>> tmpl = OldTextTemplate('''Dear $name,
    ... 
    ... We have the following items for you:
    ... #for item in items
    ...  * $item
    ... #end
    ... 
    ... All the best,
    ... Foobar''')
    >>> print(tmpl.generate(name='Joe', items=[1, 2, 3]).render(encoding=None))
    Dear Joe,
    <BLANKLINE>
    We have the following items for you:
     * 1
     * 2
     * 3
    <BLANKLINE>
    All the best,
    Foobar
    rrrrrrrrzA(?:^[ \t]*(?<!\\)#(end).*\n?)|(?:^[ \t]*(?<!\\)#((?:\w+|#).*)\n?)cCs<g}i}d}|��}t|tj�s|�|pdd�}d}d}t|j�|��D]�\}}	|	��\}
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