Re: Parsing/Formatting API

[Matthew Simon Cavalletto]

On Tuesday, January 14, 2003, at 07:24  PM, Dave Rolsky wrote:

On Tue, 14 Jan 2003, Matthew Simon Cavalletto wrote:

Agreed, strftime per se is Gregorian-centric.

Ok, then what were you proposing moving out of (or not putting in) DateTime.pm in favor of putting it in a library.

I (and others) have suggested that:
- parser/formatter code should be broken up into multiple modules;
- this be done for all parsers/formatters, not just the "extra" ones.

Using strftime as an example, this suggests the following code:

package DateTime;

sub strftime { (shift)->format_string('strtime', @_) }

sub format_string {
my ($dt, $type, @fmt) = @_;
my $package = "DateTime::Format::$type";
$package->rdsec_to_string( $dt->as_rd_sec(), @fmt );
}

sub as_rd_sec {
my $dt = shift;
return( $dt->{ratadie}, $dt->{julsec} );
}

package DateTime::Format::strtime;

sub rdsec_to_string {
my ($class, $rd, $sec, $fmt) = @_;
# ... strftime logic...
return $string;
}

(Obviously the above is just an outline and would need real error handling and suchlike.)

-Simon