Man pages sections > man3 > AtteanX::Parser::SPARQL

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

AtteanX::Parser::SPARQL(3pm) User Contributed Perl Documentation AtteanX::Parser::SPARQL(3pm)

NAME

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

VERSION

This document describes AtteanX::Parser::SPARQL version 0.017.

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

<http://www.perlrdf.org/>

AUTHOR

Gregory Todd Williams "<gwilliams@cpan.org>" Copyright (c) 2014--2016 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
2017-10-02 perl v5.26.0