[Cython] Utility Codes and templates

Stefan Behnel stefan_ml at behnel.de
Fri Jul 22 17:58:16 CEST 2011

Dag Sverre Seljebotn, 22.07.2011 17:49:
> On 07/22/2011 05:46 PM, Dag Sverre Seljebotn wrote:
>> On 07/22/2011 03:07 PM, Stefan Behnel wrote:
>>> Stefan Behnel, 22.07.2011 15:04:
>>>> Dag Sverre Seljebotn, 22.07.2011 13:54:
>>>>> On 07/22/2011 01:10 PM, Stefan Behnel wrote:
>>>>>> I'm fine with using a template engine for the more involved cases
>>>>>> (which
>>>>>> are rare enough). However, I'd prefer not adding a new dependency, but
>>>>>> just shipping a tiny single-module engine with Cython, e.g.
>>>>>> Templite or
>>>>>> pyratemp (just found them, never used them).
>>>>> BTW, I don't think anybody is suggesting having an *external*
>>>>> dependency
>>>>> that users would need to go fetch themselves....that would be insane.
>>>> Sure. I also don't mind having a small engine in a package, but just
>>>> putting a single file in the source tree (and overwriting it with a new
>>>> version at need) would be a perfectly small and nonintrusive addition.
>>>> And
>>>> given that there really are engines of that size (one file, <500 lines),
>>>> it's not so unrealistic either.
>>>> That being said, if you can recommend Tempita (which IMHO qualifies as
>>>> "small enough"), I won't object to it.
>>> ... although, isn't it unfortunate that it uses "{{...}}" for template
>>> code? How well readable is that when used in C code?
>> At least in emacs, pretty much any template syntax will mess up things
>> pretty badly, especially automatic indentation and so on.
>> What I do is using mmm-mode, so that everything within {{ and }} is
>> highlighted with python-mode, and the rest with c-mode. I'll share my
>> configuration later.
>> I'm merely stating why this has never been an issue for me, I'm NOT
>> suggesting everyone should use emacs (or that plain text editing isn't
>> convenient); you do have a point.
>> Keep in mind that a syntax must work well with utility code written in
>> Cython as well.
> OTOH one *might* want to have
> code.put_tempita(..) # or similar
> in Python code, and in that case plain text readability is very important.
> Of course, hacking Tempita to make it %[ ]% instead is a five minute job.
> But I'm happy with any other engine that somebody have actually tried out
> extensively.

Tempita accepts the delimiters as a parameter to the Template class, so 
that turns out to be a minor issue - we just have to come up with some good 
characters ourselves.


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