external/bsd/atf/dist/tools/atf-format.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 #include <cstdlib>
  31 #include <iostream>
  32 #include <sstream>
  33
  34 #include "atf-c++/application.hpp"
  35 #include "atf-c++/sanity.hpp"
  36 #include "atf-c++/ui.hpp"
  37
  38 class atf_format : public atf::application::app {
  39     static const char* m_description;
  40
  41     size_t m_length;
  42     std::string m_tag;
  43     bool m_repeat;
  44
  45     void process_option(int, const char*);
  46     std::string specific_args(void) const;
  47     options_set specific_options(void) const;
  48
  49 public:
  50     atf_format(void);
  51
  52     int main(void);
  53 };
  54
  55 const char* atf_format::m_description =
  56     "atf-format is a tool that formats text messages to fit inside "
  57     "the terminal's size.  Messages can be fed either through the "
  58     "standard input or as arguments to the program.  Each independent "
  59     "line is treated as a different paragraph.";
  60
  61 atf_format::atf_format(void) :
  62     app(m_description, "atf-format(1)", "atf(7)"),
  63     m_length(0),
  64     m_repeat(false)
  65 {
  66 }
  67
  68 void
  69 atf_format::process_option(int ch, const char* arg)
  70 {
  71     switch (ch) {
  72     case 'l':
  73         {
  74             std::istringstream ss(arg);
  75             ss >> m_length;
  76             if (m_length < m_tag.length())
  77                 throw std::runtime_error("Length must be greater than "
  78                                          "tag's length");
  79         }
  80         break;
  81
  82     case 'r':
  83         m_repeat = true;
  84         break;
  85
  86     case 't':
  87         m_tag = arg;
  88         if (m_length < m_tag.length())
  89             m_length = m_tag.length();
  90         break;
  91
  92     default:
  93         UNREACHABLE;
  94     }
  95 }
  96
  97 std::string
  98 atf_format::specific_args(void)
  99     const
 100 {
 101     return "[str1 [.. strN]]";
 102 }
 103
 104 atf_format::options_set
 105 atf_format::specific_options(void)
 106     const
 107 {
 108     using atf::application::option;
 109     options_set opts;
 110     opts.insert(option('l', "length", "Tag length"));
 111     opts.insert(option('r', "", "Repeat tag on each line"));
 112     opts.insert(option('t', "tag", "Tag to use for printing"));
 113     return opts;
 114 }
 115
 116 int
 117 atf_format::main(void)
 118 {
 119     std::string str;
 120
 121     if (m_argc > 0) {
 122         for (int i = 0; i < m_argc; i++) {
 123             str += m_argv[i];
 124             if (i < m_argc - 1)
 125                 str += ' ';
 126         }
 127         str += '\n';
 128     } else {
 129         std::string line;
 130         while (std::getline(std::cin, line))
 131             str += line + '\n';
 132     }
 133
 134     std::cout << atf::ui::format_text_with_tag(str, m_tag, m_repeat, m_length)
 135               << std::endl;
 136
 137     return EXIT_SUCCESS;
 138 }
 139
 140 int
 141 main(int argc, char* const* argv)
 142 {
 143     return atf_format().run(argc, argv);
 144 }