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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_env_h) |
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25 #define octave_env_h 1 |
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26 |
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27 #include <string> |
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28 |
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29 class |
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30 octave_env |
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31 { |
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32 protected: |
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33 |
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34 octave_env (void); |
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35 |
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36 public: |
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37 |
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38 static std::string polite_directory_format (const std::string& name); |
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39 |
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40 static bool absolute_pathname (const std::string& s); |
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41 |
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42 static std::string base_pathname (const std::string& s); |
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43 |
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44 static std::string make_absolute (const std::string& s, |
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45 const std::string& dot_path); |
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46 |
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47 static std::string getcwd (void); |
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48 |
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49 static std::string get_home_directory (void); |
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50 |
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51 static std::string get_program_name (void); |
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52 |
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53 static std::string get_program_invocation_name (void); |
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54 |
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55 static std::string get_user_name (void); |
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56 |
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57 static std::string get_host_name (void); |
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58 |
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59 static std::string getenv (const std::string& name); |
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60 |
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61 static void putenv (const std::string& name, const std::string& value); |
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62 |
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63 static bool have_x11_display (void); |
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64 |
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65 static bool chdir (const std::string& newdir); |
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66 |
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67 static void set_program_name (const std::string& s); |
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68 |
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69 private: |
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70 |
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71 static bool instance_ok (void); |
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72 |
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73 std::string do_polite_directory_format (const std::string& name) const; |
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74 |
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75 bool do_absolute_pathname (const std::string& s) const; |
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76 |
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77 std::string do_base_pathname (const std::string& s) const; |
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78 |
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79 std::string do_make_absolute (const std::string& s, |
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80 const std::string& dot_path) const; |
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81 |
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82 std::string do_getcwd (void) const; |
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83 |
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84 std::string do_get_home_directory (void) const; |
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85 |
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86 std::string do_get_user_name (void) const; |
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87 |
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88 std::string do_get_host_name (void) const; |
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89 |
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90 std::string do_getenv (const std::string& name) const; |
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91 |
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92 void do_putenv (const std::string& name, const std::string& value) const; |
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93 |
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94 bool do_chdir (const std::string& newdir); |
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95 |
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96 void do_set_program_name (const std::string& s) const; |
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97 |
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98 void pathname_backup (std::string& path, int n) const; |
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99 |
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100 void error (int) const; |
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101 |
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102 void error (const std::string&) const; |
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103 |
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104 // No copying! |
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105 |
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106 octave_env (const octave_env&); |
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107 |
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108 octave_env& operator = (const octave_env&); |
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109 |
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110 // The real thing. |
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111 static octave_env *instance; |
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112 |
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113 // TRUE means follow symbolic links that point to directories just |
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114 // as if they are real directories. |
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115 bool follow_symbolic_links; |
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116 |
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117 // TRUE means that pwd always give verbatim directory, regardless |
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118 // of symbolic link following. |
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119 bool verbatim_pwd; |
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120 |
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121 // Where are we? |
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122 mutable std::string current_directory; |
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123 |
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124 // Etc. |
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125 mutable std::string program_name; |
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126 |
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127 mutable std::string program_invocation_name; |
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128 |
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129 mutable std::string user_name; |
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130 |
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131 mutable std::string host_name; |
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132 }; |
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133 |
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134 #endif |
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135 |
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136 /* |
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137 ;;; Local Variables: *** |
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138 ;;; mode: C++ *** |
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139 ;;; End: *** |
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140 */ |
