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.\" ========================================================================
.\"
.IX Title "AtteanX::Parser::SPARQL 3pm"
.TH AtteanX::Parser::SPARQL 3pm "2019-02-13" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
AtteanX::Parser::SPARQL \- SPARQL 1.1 Parser.
.SH "VERSION"
.IX Header "VERSION"
This document describes AtteanX::Parser::SPARQL version 0.021.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 5
\& 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);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module implements a recursive-descent parser for \s-1SPARQL 1.1\s0 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.
.SH "ROLES"
.IX Header "ROLES"
This class consumes Attean::API::Parser, Attean::API::AtOnceParser, and
Attean::API::AbbreviatingParser.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.ie n .IP """canonical_media_type""" 4
.el .IP "\f(CWcanonical_media_type\fR" 4
.IX Item "canonical_media_type"
.PD 0
.ie n .IP """media_types""" 4
.el .IP "\f(CWmedia_types\fR" 4
.IX Item "media_types"
.ie n .IP """file_extensions""" 4
.el .IP "\f(CWfile_extensions\fR" 4
.IX Item "file_extensions"
.ie n .IP """handled_type""" 4
.el .IP "\f(CWhandled_type\fR" 4
.IX Item "handled_type"
.ie n .IP """lexer""" 4
.el .IP "\f(CWlexer\fR" 4
.IX Item "lexer"
.ie n .IP """args""" 4
.el .IP "\f(CWargs\fR" 4
.IX Item "args"
.ie n .IP """build""" 4
.el .IP "\f(CWbuild\fR" 4
.IX Item "build"
.ie n .IP """update""" 4
.el .IP "\f(CWupdate\fR" 4
.IX Item "update"
.ie n .IP """namespaces""" 4
.el .IP "\f(CWnamespaces\fR" 4
.IX Item "namespaces"
.ie n .IP """baseURI""" 4
.el .IP "\f(CWbaseURI\fR" 4
.IX Item "baseURI"
.ie n .IP """filters""" 4
.el .IP "\f(CWfilters\fR" 4
.IX Item "filters"
.PD
.SH "METHODS"
.IX Header "METHODS"
.ie n .IP """parse ( $sparql )""" 4
.el .IP "\f(CWparse ( $sparql )\fR" 4
.IX Item "parse ( $sparql )"
Parse the \f(CW$sparql\fR query string and return the resulting
Attean::API::Algebra object.
.ie n .IP """parse_update ( $sparql )""" 4
.el .IP "\f(CWparse_update ( $sparql )\fR" 4
.IX Item "parse_update ( $sparql )"
Parse the \f(CW$sparql\fR update string and return the resulting
Attean::API::Algebra object.
.ie n .IP """parse_list_from_io( $fh )""" 4
.el .IP "\f(CWparse_list_from_io( $fh )\fR" 4
.IX Item "parse_list_from_io( $fh )"
.PD 0
.ie n .IP """parse_list_from_bytes( $bytes )""" 4
.el .IP "\f(CWparse_list_from_bytes( $bytes )\fR" 4
.IX Item "parse_list_from_bytes( $bytes )"
.ie n .IP """parse_nodes ( $string )""" 4
.el .IP "\f(CWparse_nodes ( $string )\fR" 4
.IX Item "parse_nodes ( $string )"
.PD
Returns a list of Attean::API::Term or Attean::API::Variable objects,
parsed in \s-1SPARQL\s0 syntax from the supplied \f(CW$string\fR. Parsing is ended
either upon seeing a \s-1DOT,\s0 or reaching the end of the string.
.ie n .IP """error""" 4
.el .IP "\f(CWerror\fR" 4
.IX Item "error"
Returns the error encountered during the last parse.
.ie n .IP """new_binary_expression ( $operator, @operands )""" 4
.el .IP "\f(CWnew_binary_expression ( $operator, @operands )\fR" 4
.IX Item "new_binary_expression ( $operator, @operands )"
Returns a new binary expression structure.
.ie n .IP """new_function_expression ( $function, @operands )""" 4
.el .IP "\f(CWnew_function_expression ( $function, @operands )\fR" 4
.IX Item "new_function_expression ( $function, @operands )"
Returns a new function expression structure.
.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\-\-2018 Gregory Todd Williams.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.