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.\" ========================================================================
.\"
.IX Title "Attean::BindingEqualityTest 3pm"
.TH Attean::BindingEqualityTest 3pm "2022-10-06" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
Attean::BindingEqualityTest \- Test for equality of binding sets with bnode isomorphism
.SH "VERSION"
.IX Header "VERSION"
This document describes Attean::BindingEqualityTest version 0.033
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 6
\&  use v5.14;
\&  use Attean;
\&  my $test      = Attean::BindingEqualityTest\->new();
\&  if ($test\->equals($iter_a, $iter_b)) {
\&    say "Iterators contain equivalent bindings";
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&...
.SH "METHODS"
.IX Header "METHODS"
.ie n .IP """equals ( $graph1, $graph2 )""" 4
.el .IP "\f(CWequals ( $graph1, $graph2 )\fR" 4
.IX Item "equals ( $graph1, $graph2 )"
Returns true if the invocant and \f(CW$graph\fR represent two equal \s-1RDF\s0 graphs (e.g.
there exists a bijection between the \s-1RDF\s0 statements of the invocant and \f(CW$graph\fR).
.ie n .IP """is_subgraph_of ( $graph1, $graph2 )""" 4
.el .IP "\f(CWis_subgraph_of ( $graph1, $graph2 )\fR" 4
.IX Item "is_subgraph_of ( $graph1, $graph2 )"
Returns true if the invocant is a subgraph of \f(CW$graph\fR. (i.e. there exists an
injection of \s-1RDF\s0 statements from the invocant to \f(CW$graph\fR.)
.ie n .IP """injection_map ( $graph1, $graph2 )""" 4
.el .IP "\f(CWinjection_map ( $graph1, $graph2 )\fR" 4
.IX Item "injection_map ( $graph1, $graph2 )"
If the invocant is a subgraph of \f(CW$graph\fR, returns a mapping of blank node
identifiers from the invocant graph to \f(CW$graph\fR as a hashref. Otherwise
returns false. The solution is not always unique; where there exist multiple
solutions, the solution returned is arbitrary.
.ie n .IP """split_blank_statements( $iter )""" 4
.el .IP "\f(CWsplit_blank_statements( $iter )\fR" 4
.IX Item "split_blank_statements( $iter )"
Returns two array refs containing bindings from \f(CW$iter\fR, with bindings
containing blank nodes and bindings without any blank nodes, respectively.
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs or feature requests to through the GitHub web interface
at <https://github.com/kasei/attean/issues>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.SH "AUTHOR"
.IX Header "AUTHOR"
Gregory Todd Williams  \f(CW\*(C`<gwilliams@cpan.org>\*(C'\fR
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 2014\-\-2022 Gregory Todd Williams.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.