Re: Faster CSV parsing

Robert Klemme wrote:
> William James <w_a_x_man@xxxxxxxxx> wrote:
> > Gavin Kistner wrote:
> >> On Oct 29, 2005, at 10:07 PM, William James wrote:
> >>> ## Read, parse, and create csv records.
> >>>
> >>> # The program conforms to the csv specification at this site:
> >>> # http://www.creativyst.com/Doc/Articles/CSV/CSV01.htm
> >>> # The only extra is that you can change the field-separator.
> >>> # For a field-separator other than a comma, for example
> >>> # a semicolon:
> >>> # Csv.fs=";"
> >>> #
> >>> # After a record has been read and parsed,
> >>> # Csv.string contains the record in raw string format.
> >>
> >> Thanks for sharing this. You claim 'faster' CSV parsing. Faster than
> >> what,
> >
> > Than Ruby's standard-lib csv.rb.
> >
> >> and by how much? Got any benchmark results to share?
> >
> > For my test file of 1,964,211 bytes, it's about 6.4 times as fast.
>
> I didn't look too closely at it nor did I test it but your use of class
> variables seems not necessary here. I'd prefer to transform them into
> instance variables. Makes your code much more robust...
>
> Kind regards
>
> robert

If anyone wants to make it more robust, he is free to do so.
I have little need for csv parsing, and I don't want to spend
much more time on this.

The people on Ruby Core who are trying to speed up CSV parsing
could use this as a starting point.

.