File: sbuild-format-detail.h

package info (click to toggle)
schroot 1.6.4-4
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 6,684 kB
  • sloc: cpp: 21,427; sh: 12,516; makefile: 829; ansic: 231; sed: 16
file content (185 lines) | stat: -rw-r--r-- 4,637 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
/* Copyright © 2005-2007  Roger Leigh <rleigh@debian.org>
 *
 * schroot 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.
 *
 * schroot 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, see
 * <http://www.gnu.org/licenses/>.
 *
 *********************************************************************/

#ifndef SBUILD_FORMAT_DETAIL_H
#define SBUILD_FORMAT_DETAIL_H

#include <sbuild/sbuild-types.h>
#include <sbuild/sbuild-util.h>

#include <cwchar>
#include <iomanip>
#include <locale>
#include <ostream>
#include <sstream>
#include <string>

namespace sbuild
{

  /**
   * Format names and values for output.
   */
  class format_detail
  {
  public:
    /**
     * The constructor.
     *
     * @param title the title of the set of name and value pairs.
     * @param locale the locale to use for formatting the values.
     */
    format_detail (const std::string& title,
		   std::locale        locale);

    virtual ~format_detail ();

    /**
     * Add a name-value pair (string specialisation).
     *
     * @param name the name.
     * @param value the string value.
     * @returns a reference to the format_detail object.
     */
    format_detail&
    add (std::string const& name,
	 std::string const& value);

    /**
     * Add a name-value pair (bool specialisation).
     *
     * @param name the name.
     * @param value the bool value.
     * @returns a reference to the format_detail object.
     */
    format_detail&
    add (std::string const& name,
	 bool               value);

    /**
     * Add a name-value pair (string_list specialisation).
     *
     * @param name the name.
     * @param value the string_list value.
     * @returns a reference to the format_detail object.
     */
    format_detail&
    add (std::string const& name,
	 string_list const& value);

    /**
     * Add a name-value pair.
     *
     * @param name the name.
     * @param value the value.
     * @returns a reference to the format_detail object.
     */
    template<typename T>
    format_detail&
    add (std::string const& name,
	 T const&           value)
    {
      std::ostringstream varstring;
      varstring.imbue(this->locale);
      varstring << value;
      return add(name, varstring.str());
    }

  private:
    /**
     * Get the title of the chroot.  The title is formatted for
     * output.
     *
     * @returns the formatted title.
     */
    std::string
    get_title () const;

    /**
     * Output the format_detail to an ostream.
     *
     * @param stream the stream to output to.
     * @param rhs the format_detail to output.
     * @returns the stream.
     */
    template <class charT, class traits>
    friend
    std::basic_ostream<charT,traits>&
    operator << (std::basic_ostream<charT,traits>& stream,
		 format_detail const& rhs)
    {
      std::locale loc = stream.getloc();
      int max_width = 0;

      for (format_detail::list_type::const_iterator pos = rhs.items.begin();
	   pos != rhs.items.end();
	   ++pos)
	{
	  std::wstring wide = widen_string(pos->first, loc);
	  int width = wcswidth(wide.c_str(), wide.length());

	  if (max_width < width)
	    max_width = width;
	}

      if (max_width < 20)
	max_width = 20;
      // To ensure 2 spaces of separation between name and value
      max_width += 2;

      stream << "  " << rhs.get_title() << '\n';

      for (format_detail::list_type::const_iterator pos = rhs.items.begin();
	   pos != rhs.items.end();
	   ++pos)
	{
	  std::wostringstream ws;
	  ws.imbue(loc);

	  std::wstring wide = widen_string(pos->first, loc);
	  ws << L"  " << std::setw(max_width) << std::left << wide;

	  stream << narrow_string(ws.str(), loc) << pos->second << '\n';
	}

      return stream;
    }

  private:
    /// Name and value pairs.
    typedef std::pair<std::string,std::string> value_type;
    /// List of name and value pairs.
    typedef std::vector<value_type> list_type;

    /// The title of the items to format.
    std::string title;
    /// The locale to use for output.
    std::locale locale;
    /// The items to format;
    list_type   items;
  };

}

#endif /* SBUILD_FORMAT_DETAIL_H */

/*
 * Local Variables:
 * mode:C++
 * End:
 */