Re: Simplify formatting.c

Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > The third step is for oracle_compat.c::initcap() to use
> > formatting.c::str_initcap().  You can see the result;  patch attached
> > (not applied).
>
> > This greatly reduces the size of initcap(), with the downside that we
> > are making two extra copies of the string to convert it to/from char*.
>
> > Is this acceptable?
>
> I'd say not.  Can't we do some more refactoring and avoid so many
> useless conversions?  Seems like str_initcap is the wrong primitive API
> --- the work ought to be done by a function that takes a char pointer
> and a length.  That would be a suitable basis for functions operating
> on both text datums and C strings.

Yea, I thought about that idea too but it is going to add a strlen()
calls in some places, but not in critical ones.

> (Perhaps what I should be asking is whether the performance of upper()
> and lower() is equally bad.  Certainly all three should have comparable
> code, so maybe they all need refactoring.)

Yes, they do.  I will work on the length idea and see how that goes.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +