[Python-Dev] PEP 292, Simpler String Substitutions
Barry A. Warsaw
Wed, 19 Jun 2002 10:58:56 -0400
>>>>> "GvR" == Guido van Rossum <email@example.com> writes:
>> I agree that certain use cases make the exception problematic.
>> Think a program that uses a template entered remotely through
>> the web. That template could have misspellings in the variable
>> substitutions. In that case I think you'd like to carry on as
>> best you can, by returning a string with the bogus placeholders
>> still in the string.
GvR> That's a matter of validating the template before accepting
True, which isn't hard to do. You can write a regexp to extract the
$names and then validate those. In fact, I think this is what newer
versions of xgettext do for Python code (albeit with the %(name)s