"""preprocessing functions, used with the 'preprocessor' argument on Template, TemplateLookup"""
import re
def convert_comments(text):
"""preprocess old style comments.
example:
from mako.ext.preprocessors import convert_comments
t = Template(..., preprocessor=preprocess_comments)"""
return re.sub(r'(?<=\n)\s*#[^#]', "##", text)
# TODO
def create_tag(callable):
"""given a callable, extract the *args and **kwargs, and produce a preprocessor
that will parse for <%<funcname> <args>> and convert to an appropriate <%call> statement.
this allows any custom tag to be created which looks like a pure Mako-style tag."""
raise NotImplementedError("Future functionality....")
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