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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 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <cerrno> |
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29 #include <cstdlib> |
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30 #include <cstring> |
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31 |
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32 #include "sysdir.h" |
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33 |
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34 #include "dir-ops.h" |
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35 #include "file-ops.h" |
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36 #include "lo-error.h" |
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37 #include "lo-sysdep.h" |
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38 #include "str-vec.h" |
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39 |
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40 bool |
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41 dir_entry::open (const std::string& n) |
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42 { |
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43 fail = true; |
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44 |
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45 if (! n.empty ()) |
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46 name = n; |
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47 |
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48 if (! name.empty ()) |
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49 { |
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50 close (); |
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51 |
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52 std::string fullname = file_ops::tilde_expand (name); |
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53 |
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54 dir = static_cast<void *> (opendir (fullname.c_str ())); |
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55 |
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56 if (dir) |
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57 fail = false; |
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58 else |
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59 { |
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60 using namespace std; |
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61 errmsg = strerror (errno); |
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62 } |
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63 } |
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64 else |
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65 errmsg = "dir_entry::open: empty file name"; |
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66 |
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67 return ! fail; |
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68 } |
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69 |
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70 string_vector |
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71 dir_entry::read (void) |
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72 { |
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73 static octave_idx_type grow_size = 100; |
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74 |
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75 octave_idx_type len = 0; |
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76 |
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77 string_vector dirlist; |
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78 |
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79 if (ok ()) |
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80 { |
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81 int count = 0; |
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82 |
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83 struct dirent *dir_ent; |
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84 |
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85 while ((dir_ent = readdir (static_cast<DIR *> (dir)))) |
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86 { |
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87 if (dir_ent) |
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88 { |
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89 if (count >= len) |
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90 { |
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91 len += grow_size; |
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92 dirlist.resize (len); |
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93 } |
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94 |
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95 dirlist[count] = dir_ent->d_name; |
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96 |
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97 count++; |
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98 } |
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99 else |
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100 break; |
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101 } |
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102 |
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103 dirlist.resize (count); |
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104 } |
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105 |
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106 return dirlist; |
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107 } |
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108 |
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109 void |
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110 dir_entry::close (void) |
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111 { |
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112 if (dir) |
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113 closedir (static_cast<DIR *> (dir)); |
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114 |
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115 dir = 0; |
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116 } |
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117 |
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118 void |
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119 dir_entry::copy (const dir_entry& de) |
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120 { |
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121 name = de.name; |
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122 dir = de.dir; |
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123 fail = de.fail; |
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124 errmsg = de.errmsg; |
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125 } |
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126 |
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127 /* |
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128 ;;; Local Variables: *** |
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129 ;;; mode: C++ *** |
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130 ;;; End: *** |
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131 */ |
