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Showing content from http://perldoc.perl.org/5.14.0/TAP::Parser::Iterator below:

TAP::Parser::Iterator - Base class for TAP source iterators

• NAME
• VERSION
• SYNOPSIS
• DESCRIPTION
• METHODS
  • Class Methods
    • new
  • Instance Methods
    • next
    • next_raw
    • handle_unicode
    • get_select_handles
    • wait
    • exit
• SUBCLASSING
  • Example
• SEE ALSO

TAP::Parser::Iterator - Base class for TAP source iterators

Version 3.23

# 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     { ... }

This is a simple iterator base class that defines TAP::Parser's iterator API. Iterators are typically created from TAP::Parser::SourceHandlers.

Create an iterator. Provided by TAP::Object.

while ( my $item = $iter->next ) { ... }

Iterate through it, of course.

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.

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.

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.

Note: this method is abstract and should be overridden.

my $wait_status = $iter->wait;

Return the wait status for this iterator.

Note: this method is abstract and should be overridden.

my $wait_status = $iter->exit;

Return the exit status for this iterator.

Please see "SUBCLASSING" in TAP::Parser for a subclassing overview.

You must override the abstract methods as noted above.

TAP::Parser::Iterator::Array is probably the easiest example to follow. There's not much point repeating it here.

TAP::Object, TAP::Parser, TAP::Parser::Iterator::Array, TAP::Parser::Iterator::Stream, TAP::Parser::Iterator::Process,

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