Comments (4)
Is the content of a {%...%} or {{...}} arbitrary python or is it restricted to
python
identifiers?
Original comment by [email protected]
on 14 Jan 2009 at 8:19
from google-code-prettify.
Oh, and to avoid unnecessarily introducing multi-line tokens into HTML, can the
{%...%} or {{...}} constructs contain newline characters or the < character?
If so,
is it common for them to?
Original comment by [email protected]
on 14 Jan 2009 at 9:47
from google-code-prettify.
Mike, the contents of both {%...%} (template tags) and {{...}} (variables,
possibly
piped through filters), can potentially be anything in Unicode space. The first
"word" will typically be similar to a Python identifier, but the remainder are
arguments which can be arbitrary strings.
Neither grouping can contain newlines. They're unlikely to contain things like
the
'<' character. Experience (fwiw) suggests that the most likely things are going
to be
alphanumeric characters (including alphabetic characters outside the ASCII
range, and
that does happen as the Django international audience is huge), whitespace and
double
and single quotes. The rest are legal (except for newlines), but less common.
Original comment by [email protected]
on 19 Jan 2009 at 5:58
from google-code-prettify.
Thanks.
Are they typically short?
I ask since if I can't distinguish HTML source from HTML containing Django
template
groups, I want to be able to come up with a definition that admits few false
positives.
The definitions I'm leaning towards so far are:
/\{\{[^\0xa-0xd\x85\u2028\u2029]{2,40}?\}\}/
and
/\{\%[^\0xa-0xd\x85\u2028\u2029]{2,40}?\%\}/
http://docs.djangoproject.com/en/dev/topics/templates/#topics-templates
describes the
content as a language that has a few keywords, pythonesque identifiers, uses |
and :
for piping and parameterization, and which has numeric and double-quoted string
literals, without string interpolation. It's unclear whether it has reserved
keywords but that distinction isn't important to me.
Original comment by [email protected]
on 20 Jan 2009 at 11:45
- Changed state: Accepted
from google-code-prettify.
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