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51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
# coding: utf-8
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"""
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Exposes a class that represents a parsed (or compiled) template.
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"""
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class ParsedTemplate(object):
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"""
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Represents a parsed or compiled template.
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An instance wraps a list of unicode strings and node objects. A node
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object must have a `render(engine, stack)` method that accepts a
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RenderEngine instance and a ContextStack instance and returns a unicode
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string.
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"""
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def __init__(self):
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self._parse_tree = []
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def __repr__(self):
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return repr(self._parse_tree)
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def add(self, node):
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"""
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Arguments:
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node: a unicode string or node object instance. See the class
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docstring for information.
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"""
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self._parse_tree.append(node)
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def render(self, engine, context):
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"""
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Returns: a string of type unicode.
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"""
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# We avoid use of the ternary operator for Python 2.4 support.
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def get_unicode(node):
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if type(node) is unicode:
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return node
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return node.render(engine, context)
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parts = map(get_unicode, self._parse_tree)
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s = ''.join(parts)
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return unicode(s)
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