librostlab-blast 1.0.1
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blast-parser-driver.h
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1/*
2 Copyright (C) 2011 Laszlo Kajan, Technical University of Munich, Germany
3
4 This file is part of librostlab.
5
6 librostlab is free software: you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19#ifndef ROSTLAB_BLAST_PARSER_DRIVER_H
20#define ROSTLAB_BLAST_PARSER_DRIVER_H 1
21
22#include <stdio.h>
23#include <string>
24#include <map>
25#include <rostlab/rostlab_stdexcept.h>
28
29// Tell Flex the lexer's prototype ...
30#define YY_DECL \
31 rostlab::blast::parser::token_type \
32 yylex( rostlab::blast::parser::semantic_type* __yylval, \
33 rostlab::blast::parser::location_type* __yylloc, \
34 rostlab::blast::parser_driver& __drv, \
35 void* yyscanner )
36// ... and declare it for the parser's sake.
38#define YY_DECL_FRIEND \
39 rostlab::blast::parser::token_type \
40 (::yylex)( rostlab::blast::parser::semantic_type* __yylval, \
41 rostlab::blast::parser::location_type* __yylloc, \
42 rostlab::blast::parser_driver& __drv, \
43 void* yyscanner )
44
45namespace rostlab {
46
47namespace blast {
48
49class parser_error : public rostlab::runtime_error
50{
51 public:
52 parser_error( const std::string& __msg ) : rostlab::runtime_error(__msg){}
53};
54
56
61 friend YY_DECL_FRIEND;
62 public:
64 private:
65 std::string _istream_name; // a name for error reporting
66 FILE* _istream;
67 result_type _result;
68 void* _scanner; // yyscan_t
69 private:
70 // this is a resource - disable copy contructor and copy assignment
71 parser_driver( const parser_driver& ){};
72 parser_driver& operator=(const parser_driver&){return *this;};
73
74 std::string _buffer;
75 int _n1, _n2;
76 void _scan_init();
77 void _scan_destroy();
78 public:
79 parser_driver( FILE* __istream = stdin, const std::string& __istream_name = "stdin" ) : _istream_name(__istream_name), _istream(__istream)
80 {
81 _scan_init();
82 }
84 {
85 _scan_destroy();
86 }
87
89
90 const result_type&
91 parse( bool __trace_parsing = false, bool __trace_scanning = false );
92
96 void trace_scanning( bool __b );
97
99 void error( const rostlab::blast::location& __loc, const std::string __msg )
100 {
101 std::cerr << __loc << ": " << __msg << "\n";
102 }
103
105 void error( const std::string __msg )
106 {
107 std::cerr << __msg << "\n";
108 }
109
111
112 const result_type&
113 result() const { return _result; }
114};
115
116} // namespace blast
117
118} // namespace rostlab
119
120#endif // ROSTLAB_BLAST_PARSER_DRIVER_H
121
122// vim:et:ts=4:ai:
#define YY_DECL_FRIEND
#define YY_DECL
Two points in a source file.
Blast (default, -m 0) output parser.
const result_type & parse(bool __trace_parsing=false, bool __trace_scanning=false)
Parse one result from the input stream.
void trace_scanning(bool __b)
Set tracing of scanning.
void error(const rostlab::blast::location &__loc, const std::string __msg)
Print error message for given location.
void error(const std::string __msg)
Print error message.
bool trace_scanning()
Get tracing of scanning.
parser_driver(FILE *__istream=stdin, const std::string &__istream_name="stdin")
const result_type & result() const
Read-only access to results.
rostlab::blast::result result_type
parser_error(const std::string &__msg)
Blast result for one query.