NAME

       AtteanX::Parser::SPARQL - SPARQL 1.1 Parser.

VERSION

       This document describes AtteanX::Parser::SPARQL version 0.019.

SYNOPSIS

        use AtteanX::Parser::SPARQL;
        my $algbrea = AtteanX::Parser::SPARQL->parse($sparql, $base_uri);
        # or:
        my $parser     = AtteanX::Parser::SPARQL->new();
        my ($algebra) = $parser->parse_list_from_bytes($sparql, $base_uri);

        # or to allow parsing of SPARQL 1.1 Updates:

        my $algbrea = AtteanX::Parser::SPARQL->parse_update($sparql, $base_uri);
        # or:
        my $parser = AtteanX::Parser::SPARQL->new(update => 1);
        my ($algebra) = $parser->parse_list_from_bytes($sparql, $base_uri);

DESCRIPTION

       This module implements a recursive-descent parser for SPARQL 1.1 using the
       AtteanX::Parser::SPARQLLex tokenizer. Successful parsing results in an object whose type
       is one of: Attean::Algebra::Query, Attean::Algebra::Update, or Attean::Algebra::Sequence.

ROLES

       This class consumes Attean::API::Parser, Attean::API::AtOnceParser, and
       Attean::API::AbbreviatingParser.

ATTRIBUTES

       "canonical_media_type"
       "media_types"
       "file_extensions"
       "handled_type"
       "lexer"
       "args"
       "build"
       "update"
       "namespaces"
       "baseURI"
       "filters"

METHODS

       "parse ( $sparql )"
           Parse the $sparql query string and return the resulting Attean::API::Algebra object.

       "parse_update ( $sparql )"
           Parse the $sparql update string and return the resulting Attean::API::Algebra object.

       "parse_list_from_io( $fh )"
       "parse_list_from_bytes( $bytes )"
       "parse_nodes ( $string )"
           Returns a list of Attean::API::Term or Attean::API::Variable objects, parsed in SPARQL
           syntax from the supplied $string. Parsing is ended either upon seeing a DOT, or
           reaching the end of the string.

       "error"
           Returns the error encountered during the last parse.

       "new_binary_expression ( $operator, @operands )"
           Returns a new binary expression structure.

       "new_function_expression ( $function, @operands )"
           Returns a new function expression structure.

BUGS

       Please report any bugs or feature requests to through the GitHub web interface at
       <https://github.com/kasei/attean/issues>.

SEE ALSO

AUTHOR

       Gregory Todd Williams  "<gwilliams@cpan.org>"

COPYRIGHT

       Copyright (c) 2014--2018 Gregory Todd Williams.  This program is free software; you can
       redistribute it and/or modify it under the same terms as Perl itself.