Wrapping Mako-generated text to a fixed width

[jgarbers]

I'm using Mako templates to generate emails with lots of interpolated
variables. I'd like to be able to use Python's textwrap module to
force some of the paragraphs in the email wrap to a specified column
width.

I could "pre-wrap" the text before interpolating it into my template,
but I'd prefer to have the text for those paragraphs simply live in
the template.

Can someone suggest a convenient approach to tag or mark a paragraph
in a template so it can have a function -- in this case, presumably,
textwrap.wrap() -- applied to it?

Thanks!

[Michael Bayer]

the <%block> tag was made for this sort of thing:

from mako.template import Template

t = Template("""
<%block filter="wrap">
alsfalskmf alsdkfm aslkf asdlkf aslkfmaslfma ds skjfna ksjfn adkjfn adskjfn
</%block>
""")

import textwrap
def wrap(text):
return "\n".join(textwrap.wrap(text, 40)).strip()

print t.render(wrap = wrap)

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