TAP::Parser::Iterator(3Perl Programmers Reference GuTAP::Parser::Iterator(3pm)NAMETAP::Parser::Iterator - Base class for TAP source iterators
VERSION
Version 3.23
SYNOPSIS
# to subclass:
use vars qw(@ISA);
use TAP::Parser::Iterator ();
@ISA = qw(TAP::Parser::Iterator);
sub _initialize {
# see TAP::Object...
}
sub next_raw { ... }
sub wait { ... }
sub exit { ... }
DESCRIPTION
This is a simple iterator base class that defines TAP::Parser's
iterator API. Iterators are typically created from
TAP::Parser::SourceHandlers.
METHODS
Class Methods
"new"
Create an iterator. Provided by TAP::Object.
Instance Methods
"next"
while ( my $item = $iter->next ) { ... }
Iterate through it, of course.
"next_raw"
Note: this method is abstract and should be overridden.
while ( my $item = $iter->next_raw ) { ... }
Iterate raw input without applying any fixes for quirky input syntax.
"handle_unicode"
If necessary switch the input stream to handle unicode. This only has
any effect for I/O handle based streams.
The default implementation does nothing.
"get_select_handles"
Return a list of filehandles that may be used upstream in a select()
call to signal that this Iterator is ready. Iterators that are not
handle-based should return an empty list.
The default implementation does nothing.
"wait"
Note: this method is abstract and should be overridden.
my $wait_status = $iter->wait;
Return the "wait" status for this iterator.
"exit"
Note: this method is abstract and should be overridden.
my $wait_status = $iter->exit;
Return the "exit" status for this iterator.
SUBCLASSING
Please see "SUBCLASSING" in TAP::Parser for a subclassing overview.
You must override the abstract methods as noted above.
Example
TAP::Parser::Iterator::Array is probably the easiest example to follow.
There's not much point repeating it here.
SEE ALSO
TAP::Object, TAP::Parser, TAP::Parser::Iterator::Array,
TAP::Parser::Iterator::Stream, TAP::Parser::Iterator::Process,
perl v5.16.3 2013-03-04 TAP::Parser::Iterator(3pm)
