/usr/include/lv2-c++-tools/turtleparser.hpp is in libpaq-dev 1.0.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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turtleparser.hpp - A RDF/Turtle parser
Copyright (C) 2006-2007 Lars Luthman <lars.luthman@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 01222-1307 USA
****************************************************************************/
#ifndef TURTLEPARSER_HPP
#define TURTLEPARSER_HPP
#include <boost/spirit/include/classic_core.hpp>
#include <boost/spirit/include/classic_utility.hpp>
#include <boost/spirit/include/classic_parse_tree.hpp>
#include <boost/spirit/include/classic_ast.hpp>
#include <algorithm>
#include <iostream>
#include <map>
#include <vector>
#include <string>
#include <utility>
#include "unicode.hpp"
#include "rdf.hpp"
namespace PAQ {
using namespace std;
using namespace boost;
using namespace boost::spirit;
/** This class parses RDF data in the Turtle syntax. */
class TurtleParser {
public:
TurtleParser();
/** Parse the string @c str as a Turtle document and put the resulting
graph in @c data. */
bool parse_ttl(const std::string& str, RDFData& data,
const std::string& base_uri);
/** Parse the given file as a Turtle document and put the resulting graph
in @c data. */
bool parse_ttl_file(const std::string& filename, RDFData& data);
/** Parse the given URL as a Turtle document and put the resulting graph
in @c data. Only file:// URLs are supported. */
bool parse_ttl_url(const std::string& url, RDFData& data);
string absolutise(const std::string& str);
protected:
// Typedefs to make the rest of the code more readable
typedef const char* iterator_t;
typedef tree_match<iterator_t> parse_tree_match_t;
typedef parse_tree_match_t::const_tree_iterator iter_t;
typedef pt_match_policy<iterator_t> match_policy_t;
typedef scanner_policies<iteration_policy, match_policy_t, action_policy>
scanner_policy_t;
typedef scanner<iterator_t, scanner_policy_t> scanner_t;
typedef rule<scanner_t> rule_t;
// These functions are called when the parser finds a matching rule
void do_directive(iter_t iter);
void do_statement(iter_t iter);
void do_triples(iter_t iter);
RDFTerm* do_subject(iter_t iter);
RDFTerm* do_resource(iter_t iter);
RDFTerm* do_blank(iter_t iter);
RDFTerm* do_uriref(iter_t iter);
RDFTerm* do_relativeURI(iter_t iter);
RDFTerm* do_qname(iter_t iter);
RDFTerm* do_nodeID(iter_t iter);
multimap<RDFTerm*, RDFTerm*> do_predicateObjectList(iter_t iter);
RDFTerm* do_collection(iter_t iter);
RDFTerm* do_verb(iter_t iter);
vector<RDFTerm*> do_objectList(iter_t iter);
RDFTerm* do_predicate(iter_t iter);
RDFTerm* do_object(iter_t iter);
RDFTerm* do_literal(iter_t iter);
vector<RDFTerm*> do_itemList(iter_t iter);
RDFTerm* do_quotedString(iter_t iter);
RDFTerm* do_string(iter_t iter);
RDFTerm* do_longString(iter_t iter);
RDFTerm* do_double(iter_t iter);
RDFTerm* do_decimal(iter_t iter);
RDFTerm* do_integer(iter_t iter);
RDFTerm* do_boolean(iter_t iter);
RDFTerm* do_datatypeString(iter_t iter);
// Utility functions
string node_to_string(iter_t node);
void ucharacter_escape(std::string& str);
void scharacter_escape(std::string& str);
// All the grammar rules
rule_t turtleDoc,
statement,
directive,
triples,
predicateObjectList,
objectList,
verb,
comment,
subject,
predicate,
object,
literal,
datatypeString,
integer,
_double,
decimal,
exponent,
boolean,
blank,
itemList,
collection,
_ws,
resource,
nodeID,
qname,
uriref,
language,
nameStartChar,
nameChar,
name,
prefixName,
relativeURI,
quotedString,
_string,
longString,
character,
echaracter,
_hex,
ucharacter,
scharacter,
lcharacter;
std::map<parser_id, string> m_rule_map;
std::map<std::string, std::string> m_prefix_map;
std::string m_base_uri;
RDFData* m_data;
};
}
#endif
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