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location.hh
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1 /* A Bison parser, made by GNU Bison 2.3. */
2
3 /* Locations for Bison parsers in C++
4
5 Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
21
22 /* As a special exception, you may create a larger work that contains
23 part or all of the Bison parser skeleton and distribute that work
24 under terms of your choice, so long as that work isn't itself a
25 parser generator using the skeleton or a modified version thereof
26 as a parser skeleton. Alternatively, if you modify or redistribute
27 the parser skeleton itself, you may (at your option) remove this
28 special exception, which will cause the skeleton and the resulting
29 Bison output files to be licensed under the GNU General Public
30 License without this special exception.
31
32 This special exception was added by the Free Software Foundation in
33 version 2.2 of Bison. */
34
40 #ifndef BISON_LOCATION_HH
41 # define BISON_LOCATION_HH
42
43 # include <iostream>
44 # include <string>
45 # include "position.hh"
46
47 namespace yy
48 {
49
51 class location
52 {
53 public:
54
56 location ()
57 : begin (), end ()
58 {
59 }
60
61
63 inline void initialize (std::string* fn)
64 {
65 begin.initialize (fn);
66 end = begin;
67 }
68
71 public:
73 inline void step ()
74 {
75 begin = end;
76 }
77
79 inline void columns (unsigned int count = 1)
80 {
81 end += count;
82 }
83
85 inline void lines (unsigned int count = 1)
86 {
87 end.lines (count);
88 }
92 public:
94 position begin;
96 position end;
97 };
98
100 inline const location operator+ (const location& begin, const location& end)
101 {
102 location res = begin;
103 res.end = end.end;
104 return res;
105 }
106
108 inline const location operator+ (const location& begin, unsigned int width)
109 {
110 location res = begin;
111 res.columns (width);
112 return res;
113 }
114
116 inline location& operator+= (location& res, unsigned int width)
117 {
118 res.columns (width);
119 return res;
120 }
121
128 inline std::ostream& operator<< (std::ostream& ostr, const location& loc)
129 {
130 position last = loc.end - 1;
131 ostr << loc.begin;
132 if (last.filename
133 && (!loc.begin.filename
134 || *loc.begin.filename != *last.filename))
135 ostr << '-' << last;
136 else if (loc.begin.line != last.line)
137 ostr << '-' << last.line << '.' << last.column;
138 else if (loc.begin.column != last.column)
139 ostr << '-' << last.column;
140 return ostr;
141 }
142
143 }
144
145 #endif // not BISON_LOCATION_HH
yy::position
Abstract a position.
Definition: position.hh:49
yy::location::columns
void columns(unsigned int count=1)
Extend the current location to the COUNT next columns.
Definition: location.hh:79
yy::location::initialize
void initialize(std::string *fn)
Initialization.
Definition: location.hh:63
position.hh
yy::position::column
unsigned int column
Current column number.
Definition: position.hh:96
yy::position::lines
void lines(int count=1)
(line related) Advance to the COUNT next lines.
Definition: position.hh:72
yy::position::initialize
void initialize(std::string *fn)
Initialization.
Definition: position.hh:61
yy::location::begin
position begin
Beginning of the located region.
Definition: location.hh:94
yy::location::end
position end
End of the located region.
Definition: location.hh:96
yy::location::lines
void lines(unsigned int count=1)
Extend the current location to the COUNT next lines.
Definition: location.hh:85
yy::location::step
void step()
Reset initial location to final location.
Definition: location.hh:73
yy::location
Abstract a location.
Definition: location.hh:51
yy
Definition: json_parser.cc:101
yy::position::line
unsigned int line
Current line number.
Definition: position.hh:94
yy::location::location
location()
Construct a location.
Definition: location.hh:56
yy::position::filename
std::string * filename
File name to which this position refers.
Definition: position.hh:92

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