[E-devel] printf-style new function for eina strbufs

[Ulrich E. <doo...@kn...>]

Hi!

I've been wondering why there are ways to append to a strbuf but no way to 
create one from scratch providing a format string and arguments. Actually, 
I've found a few places where a strbuf is created (with its default size) and 
then appended to, possibly causing a reallocation. I think the code overhead 
of doing it in two steps and the runtime overhead for the reallocation are 
unnecessary. They are even dangerous in out-of-memory situations if not done 
correctly.

Please have a look at the attached patch. It provides two new functions, 
eina_strbuf_new_printf() and eina_strbuf_new_vprintf(). I'm aware that the 
implementation is far from ideal, since it doesn't avoid the useless double 
allocation. Also, the version for wide character strings is missing. Still, I 
wanted to ask if there is any interest in such an eina extension and whether 
the interface is acceptable.

Cheers!

Uli