fix: fail on unmatched tags

[shklqm]

While playing with this library I noticed that for the tags that were not closed or not properly matched the parsing didn't fail.
I have added a few test cases to demonstrate this behavior.

PS: I used mustache playground to run & compare the results:
https://jgonggrijp.gitlab.io/wontache/playground.html

[bakert]

This is quite a change in behavior. I agree that it's desirable but it will need a major version bump as any old stuff might start exploding where as it would have been doing whatever arbitrary thing uncomplainingly until now. v1.0.0?

[shklqm]

That's a good point. How about making it optional first, something like:

def parse(self, template, raise_on_mismatch=False):
      ...
      if raise_on_mismatch and states:
          raise ParsingError('Tag mismatch.')

In this way the compatibility is kept, and the argument can be deprecated at some later point.

[bakert]

That's a good point. How about making it optional first, something like:

def parse(self, template, raise_on_mismatch=False):
      ...
      if raise_on_mismatch and states:
          raise ParsingError('Tag mismatch.')

In this way the compatibility is kept, and the argument can be deprecated at some later point.

That's pretty weak compared to the more desirable behavior of letting you know that you fucked up but it might be a more responsible change.

[bakert]

v0.6.7 now the latest on pypi has this