Tim> I'm actually starting to think that this may be a good use case for
Tim> views of strings i.e. rather than create 3 new strings, each
Tim> "string" is a view onto the string that was partitioned.
How would this work? One of the advantages of the current string is that
the underlying data is NUL-terminated, so when passing strings to C routines
no copying is required. Suppose I executed
scheme, _, rest = "http://www.python.org/".partition(':')
As a Python programmer I'd get back what look like three strings: "http",
":", and "//www.python.org/". If each of them was a view onto part of the
original string, only the last one would truly refer to a NUL-terminated
sequence of characters. If I then wanted to see what scheme's value
compared to, the string's comparison method would have to recognize that it
wasn't truly NUL-terminated, copy it, call strncmp() or whatever underlying
routine is used for string comparisons. (Maybe string comparisons are done
inline. I'm sure there are some examples where the underlying C string
routines are called.)
OTOH, maybe that would work. Perhaps we should try it.
Skip
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
