[issue5237] Allow auto-numbered replacement fields in str.format() strings

[Eric Smith]

Eric Smith <eric at trueblade.com> added the comment:

I implemented this one:
field_name        ::=  (identifier | integer | ) ("." attribute_name |
"[" element_index "]")*

Which I would have written as:
field_name        ::=  (identifier | integer)? ("." attribute_name |
"[" element_index "]")*

Not that it matters, of course.

And the proviso is correct: blanks and integers cannot be mixed in the
same string.

Thanks for looking at this!

----------
stage:  -> committed/rejected

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5237>
_______________________________________