iconverter.h
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1 /*
2  * Copyright (C) 2006 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 #ifndef CXXTOOLS_ICONVERTER_H
30 #define CXXTOOLS_ICONVERTER_H
31 
32 #include <cxxtools/iconvstream.h>
33 #include <string>
34 #include <sstream>
35 
36 namespace cxxtools
37 {
54  class IConverter
55  {
56  std::string tocode;
57  std::string fromcode;
58 
59  public:
60  IConverter() { }
61  IConverter(const std::string& tocode_, const std::string& fromcode_)
62  : tocode(tocode_),
63  fromcode(fromcode_)
64  { }
65 
66  void setToCode(const std::string& tocode_) { tocode = tocode_; }
67  void setFromCode(const std::string& fromcode_) { fromcode = fromcode_; }
68  const std::string& getToCode() const { return tocode; }
69  const std::string& getFromCode() const { return fromcode; }
70 
71  template <typename objT>
72  std::string convert(objT s) const
73  {
74  std::ostringstream o;
75 
76  iconvstream conv;
77  conv.exceptions(std::ios::failbit | std::ios::badbit);
78  conv.open(o, tocode.c_str(), fromcode.c_str());
79  conv << s << std::flush;
80 
81  return o.str();
82  }
83 
84  std::string convert(const char* data, unsigned size) const
85  {
86  std::ostringstream o;
87 
88  iconvstream conv;
89  conv.exceptions(std::ios::failbit | std::ios::badbit);
90  conv.open(o, tocode.c_str(), fromcode.c_str());
91  conv.write(data, size);
92  conv.flush();
93 
94  return o.str();
95  }
96 
97  template <typename iteratorT>
98  std::string convertRange(iteratorT begin, iteratorT end) const
99  {
100  std::ostringstream o;
101 
102  iconvstream conv;
103  conv.exceptions(std::ios::failbit | std::ios::badbit);
104  conv.open(o, tocode.c_str(), fromcode.c_str());
105  for (iteratorT it = begin; it != end; ++it)
106  conv << *it;
107 
108  conv.flush();
109 
110  return o.str();
111  }
112 
113  template <typename objT>
114  std::string operator() (objT s) const
115  { return convert(s); }
116 
117  std::string operator() (const char* data, unsigned size) const
118  { return convert(data, size); }
119  };
120 
121 }
122 
123 #endif // CXXTOOLS_ICONVERTER_H
124