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1 /* |
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2 |
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2847
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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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2939
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22 */ |
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23 |
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24 /* |
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25 |
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26 The functions listed below were adapted from similar functions from |
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27 GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free |
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28 Software Foundation, Inc. |
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29 |
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30 do_history edit_history_readline |
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31 do_edit_history edit_history_add_hist |
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32 |
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33 */ |
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34 |
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240
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35 #ifdef HAVE_CONFIG_H |
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1192
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36 #include <config.h> |
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1
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37 #endif |
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38 |
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1343
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39 #include <cstdlib> |
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40 #include <cstring> |
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41 |
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1750
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42 #include <string> |
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43 |
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3503
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44 #include <fstream> |
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1350
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45 |
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46 #ifdef HAVE_UNISTD_H |
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2442
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47 #ifdef HAVE_SYS_TYPES_H |
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1
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48 #include <sys/types.h> |
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2442
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49 #endif |
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1
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50 #include <unistd.h> |
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51 #endif |
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1350
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52 |
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1799
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53 #include "cmd-hist.h" |
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1802
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54 #include "file-ops.h" |
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3016
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55 #include "lo-mappers.h" |
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2926
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56 #include "oct-env.h" |
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5305
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57 #include "oct-time.h" |
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1755
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58 #include "str-vec.h" |
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59 |
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2492
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60 #include <defaults.h> |
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1352
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61 #include "defun.h" |
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1
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62 #include "error.h" |
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3016
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63 #include "gripes.h" |
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1
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64 #include "input.h" |
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1742
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65 #include "oct-hist.h" |
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1750
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66 #include "oct-obj.h" |
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1352
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67 #include "pager.h" |
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3018
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68 #include "parse.h" |
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1352
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69 #include "sighandlers.h" |
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1690
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70 #include "sysdep.h" |
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1750
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71 #include "toplev.h" |
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1352
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72 #include "unwind-prot.h" |
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73 #include "utils.h" |
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2205
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74 #include "variables.h" |
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1
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75 |
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3018
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76 // TRUE means input is coming from temporary history file. |
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77 bool input_from_tmp_history_file = false; |
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168
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78 |
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5305
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79 static std::string |
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1
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80 default_history_file (void) |
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81 { |
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3523
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82 std::string file; |
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1
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83 |
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3523
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84 std::string env_file = octave_env::getenv ("OCTAVE_HISTFILE"); |
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1755
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85 |
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2926
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86 if (! env_file.empty ()) |
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1
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87 { |
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3551
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88 std::fstream f (env_file.c_str (), (std::ios::in | std::ios::out)); |
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89 |
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529
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90 if (f) |
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1
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91 { |
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92 file = env_file; |
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1
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93 f.close (); |
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94 } |
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95 } |
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96 |
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1755
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97 if (file.empty ()) |
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98 { |
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3523
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99 std::string home_dir = octave_env::get_home_directory (); |
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2926
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100 |
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101 if (! home_dir.empty ()) |
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1969
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102 { |
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2926
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103 file = home_dir; |
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1969
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104 file.append ("/.octave_hist"); |
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105 } |
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1755
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106 else |
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107 file = ".octave_hist"; |
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108 } |
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1
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109 |
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110 return file; |
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111 } |
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112 |
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5794
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113 // Where history is saved. |
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114 static std::string Vhistory_file = default_history_file (); |
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115 |
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5305
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116 static int |
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117 default_history_size (void) |
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118 { |
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119 int size = 1024; |
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120 |
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121 std::string env_size = octave_env::getenv ("OCTAVE_HISTSIZE"); |
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122 |
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123 if (! env_size.empty ()) |
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124 { |
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125 int val; |
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126 |
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127 if (sscanf (env_size.c_str (), "%d", &val) == 1) |
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128 size = val > 0 ? val : 0; |
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129 } |
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130 |
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131 return size; |
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132 } |
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133 |
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5794
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134 // The number of lines to keep in the history file. |
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135 static int Vhistory_size = default_history_size (); |
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136 |
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5305
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137 static std::string |
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138 default_history_timestamp_format (void) |
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139 { |
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140 return |
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141 std::string ("# Octave " OCTAVE_VERSION ", %a %b %d %H:%M:%S %Y %Z <") |
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142 + octave_env::get_user_name () |
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143 + std::string ("@") |
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144 + octave_env::get_host_name () |
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145 + std::string (">"); |
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146 } |
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147 |
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5794
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148 // The format of the timestamp marker written to the history file when |
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149 // Octave exits. |
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150 static std::string Vhistory_timestamp_format_string |
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151 = default_history_timestamp_format (); |
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152 |
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153 // TRUE if we are saving history. |
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154 bool Vsaving_history = true; |
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155 |
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581
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156 // Display, save, or load history. Stolen and modified from bash. |
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157 // |
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158 // Arg of -w FILENAME means write file, arg of -r FILENAME |
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159 // means read file, arg of -q means don't number lines. Arg of N |
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160 // means only display that many items. |
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161 |
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1755
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162 static void |
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163 do_history (int argc, const string_vector& argv) |
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1
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164 { |
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165 int numbered_output = 1; |
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166 |
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1755
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167 int i; |
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168 for (i = 1; i < argc; i++) |
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1
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169 { |
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3523
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170 std::string option = argv[i]; |
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2435
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171 |
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172 if (option == "-r" || option == "-w" || option == "-a" |
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173 || option == "-n") |
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1
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174 { |
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1755
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175 if (i < argc - 1) |
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5872
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176 command_history::set_file (argv[i+1]); |
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1
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177 |
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2435
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178 if (option == "-a") |
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179 // Append `new' lines to file. |
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2926
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180 command_history::append (); |
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2435
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181 |
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182 else if (option == "-w") |
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183 // Write entire history. |
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2926
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184 command_history::write (); |
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777
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185 |
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2435
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186 else if (option == "-r") |
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187 // Read entire file. |
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2926
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188 command_history::read (); |
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777
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189 |
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2435
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190 else if (option == "-n") |
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191 // Read `new' history from file. |
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2926
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192 command_history::read_range (); |
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777
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193 |
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2435
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194 else |
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195 panic_impossible (); |
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196 |
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1
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197 return; |
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198 } |
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1755
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199 else if (argv[i] == "-q") |
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1
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200 numbered_output = 0; |
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1755
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201 else if (argv[i] == "--") |
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1
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202 { |
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1755
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203 i++; |
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1
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204 break; |
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205 } |
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206 else |
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207 break; |
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208 } |
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209 |
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1799
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210 int limit = -1; |
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1
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211 |
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1755
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212 if (i < argc) |
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1
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213 { |
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1755
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214 if (sscanf (argv[i].c_str (), "%d", &limit) != 1) |
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1
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215 { |
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1755
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216 if (argv[i][0] == '-') |
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217 error ("history: unrecognized option `%s'", argv[i].c_str ()); |
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1
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218 else |
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1755
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219 error ("history: bad non-numeric arg `%s'", argv[i].c_str ()); |
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220 |
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1
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221 return; |
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222 } |
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223 |
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224 if (limit < 0) |
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225 limit = -limit; |
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1799
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226 } |
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1
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227 |
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2926
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228 string_vector hlist = command_history::list (limit, numbered_output); |
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1
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229 |
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1799
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230 int len = hlist.length (); |
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231 |
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2095
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232 for (i = 0; i < len; i++) |
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233 octave_stdout << hlist[i] << "\n"; |
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1
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234 } |
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235 |
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581
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236 // Read the edited history lines from STREAM and return them |
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237 // one at a time. This can read unlimited length lines. The |
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2434
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238 // caller should free the storage. |
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581
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239 |
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1
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240 static char * |
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3551
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241 edit_history_readline (std::fstream& stream) |
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1
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242 { |
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243 char c; |
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244 int line_len = 128; |
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245 int lindex = 0; |
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246 char *line = new char [line_len]; |
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247 line[0] = '\0'; |
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248 |
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249 while (stream.get (c)) |
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250 { |
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251 if (lindex + 2 >= line_len) |
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252 { |
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253 char *tmp_line = new char [line_len += 128]; |
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254 strcpy (tmp_line, line); |
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255 delete [] line; |
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256 line = tmp_line; |
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257 } |
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258 |
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259 if (c == '\n') |
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260 { |
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261 line[lindex++] = '\n'; |
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262 line[lindex++] = '\0'; |
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263 return line; |
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264 } |
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265 else |
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266 line[lindex++] = c; |
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267 } |
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268 |
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269 if (! lindex) |
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270 { |
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271 delete [] line; |
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529
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272 return 0; |
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1
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273 } |
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274 |
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275 if (lindex + 2 >= line_len) |
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276 { |
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277 char *tmp_line = new char [lindex+3]; |
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278 strcpy (tmp_line, line); |
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279 delete [] line; |
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280 line = tmp_line; |
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281 } |
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282 |
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1358
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283 // Finish with newline if none in file. |
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1
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284 |
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285 line[lindex++] = '\n'; |
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286 line[lindex++] = '\0'; |
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287 return line; |
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288 } |
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289 |
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581
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290 // Use `command' to replace the last entry in the history list, which, |
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291 // by this time, is `run_history blah...'. The intent is that the |
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1799
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292 // new command becomes the history entry, and that `fc' should never |
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581
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293 // appear in the history list. This way you can do `run_history' to |
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294 // your heart's content. |
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295 |
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64
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296 static void |
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3523
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297 edit_history_repl_hist (const std::string& command) |
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64
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298 { |
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1799
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299 if (! command.empty ()) |
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300 { |
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2926
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301 string_vector hlist = command_history::list (); |
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64
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302 |
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1799
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303 int len = hlist.length (); |
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64
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304 |
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1799
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305 if (len > 0) |
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306 { |
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307 int i = len - 1; |
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64
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308 |
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3523
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309 std::string histent = command_history::get_entry (i); |
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64
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310 |
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1799
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311 if (! histent.empty ()) |
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312 { |
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3523
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313 std::string cmd = command; |
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64
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314 |
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1799
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315 int cmd_len = cmd.length (); |
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64
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316 |
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1799
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317 if (cmd[cmd_len - 1] == '\n') |
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318 cmd.resize (cmd_len - 1); |
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64
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319 |
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1799
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320 if (! cmd.empty ()) |
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2926
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321 command_history::replace_entry (i, cmd); |
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1799
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322 } |
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64
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323 } |
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324 } |
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325 } |
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326 |
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1
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327 static void |
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3523
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328 edit_history_add_hist (const std::string& line) |
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1
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329 { |
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1799
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330 if (! line.empty ()) |
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1
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331 { |
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3523
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332 std::string tmp = line; |
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1
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333 |
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1799
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334 int len = tmp.length (); |
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335 |
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336 if (len > 0 && tmp[len-1] == '\n') |
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337 tmp.resize (len - 1); |
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338 |
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339 if (! tmp.empty ()) |
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2926
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340 command_history::add (tmp); |
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1
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341 } |
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342 } |
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343 |
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3536
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344 static std::string |
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1755
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345 mk_tmp_hist_file (int argc, const string_vector& argv, |
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2804
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346 int insert_curr, const char *warn_for) |
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1
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347 { |
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3523
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348 std::string retval; |
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1
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349 |
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2926
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350 string_vector hlist = command_history::list (); |
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1
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351 |
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1799
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352 int hist_count = hlist.length (); |
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1
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353 |
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1358
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354 // The current command line is already part of the history list by |
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355 // the time we get to this point. Delete it from the list. |
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1
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356 |
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357 hist_count -= 2; |
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1799
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358 |
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64
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359 if (! insert_curr) |
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2926
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360 command_history::remove (hist_count); |
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1799
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361 |
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1
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362 hist_count--; |
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363 |
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1358
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364 // If no numbers have been specified, the default is to edit the |
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365 // last command in the history list. |
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1
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366 |
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367 int hist_end = hist_count; |
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368 int hist_beg = hist_count; |
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369 int reverse = 0; |
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370 |
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1358
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371 // Process options. |
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1
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372 |
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373 int usage_error = 0; |
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374 if (argc == 3) |
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375 { |
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1755
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376 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1 |
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377 || sscanf (argv[2].c_str (), "%d", &hist_end) != 1) |
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1
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378 usage_error = 1; |
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379 else |
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380 { |
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381 hist_beg--; |
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382 hist_end--; |
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383 } |
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384 } |
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385 else if (argc == 2) |
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386 { |
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1755
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387 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1) |
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1
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388 usage_error = 1; |
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389 else |
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390 { |
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391 hist_beg--; |
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392 hist_end = hist_beg; |
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393 } |
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394 } |
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395 |
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396 if (hist_beg < 0 || hist_end < 0 || hist_beg > hist_count |
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397 || hist_end > hist_count) |
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398 { |
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64
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399 error ("%s: history specification out of range", warn_for); |
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1799
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400 return retval; |
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1
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401 } |
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402 |
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403 if (usage_error) |
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404 { |
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64
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405 usage ("%s [first] [last]", warn_for); |
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1799
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406 return retval; |
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1
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407 } |
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408 |
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409 if (hist_end < hist_beg) |
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410 { |
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411 int t = hist_end; |
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412 hist_end = hist_beg; |
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413 hist_beg = t; |
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414 reverse = 1; |
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415 } |
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416 |
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3523
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417 std::string name = file_ops::tempnam ("", "oct-"); |
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1
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418 |
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3551
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419 std::fstream file (name.c_str (), std::ios::out); |
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64
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420 |
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1
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421 if (! file) |
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422 { |
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1755
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423 error ("%s: couldn't open temporary file `%s'", warn_for, |
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424 name.c_str ()); |
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1799
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425 return retval; |
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1
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426 } |
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427 |
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428 if (reverse) |
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429 { |
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430 for (int i = hist_end; i >= hist_beg; i--) |
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1799
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431 file << hlist[i] << "\n"; |
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1
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432 } |
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433 else |
|
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434 { |
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435 for (int i = hist_beg; i <= hist_end; i++) |
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1799
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436 file << hlist[i] << "\n"; |
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1
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437 } |
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438 |
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439 file.close (); |
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440 |
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1755
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441 return name; |
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64
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442 } |
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443 |
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1755
|
444 static void |
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445 do_edit_history (int argc, const string_vector& argv) |
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64
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446 { |
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3523
|
447 std::string name = mk_tmp_hist_file (argc, argv, 0, "edit_history"); |
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64
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448 |
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1755
|
449 if (name.empty ()) |
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64
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450 return; |
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451 |
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1358
|
452 // Call up our favorite editor on the file of commands. |
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1
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453 |
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5794
|
454 std::string cmd = VEDITOR; |
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4469
|
455 cmd.append (" \""); |
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1799
|
456 cmd.append (name); |
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4469
|
457 cmd.append ("\""); |
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1
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458 |
|
1358
|
459 // Ignore interrupts while we are off editing commands. Should we |
|
|
460 // maybe avoid using system()? |
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1
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461 |
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2705
|
462 volatile octave_interrupt_handler old_interrupt_handler |
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2554
|
463 = octave_ignore_interrupts (); |
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1443
|
464 |
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1799
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465 system (cmd.c_str ()); |
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1443
|
466 |
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2554
|
467 octave_set_interrupt_handler (old_interrupt_handler); |
|
1
|
468 |
|
1358
|
469 // Write the commands to the history file since parse_and_execute |
|
|
470 // disables command line history while it executes. |
|
1
|
471 |
|
3551
|
472 std::fstream file (name.c_str (), std::ios::in); |
|
1
|
473 |
|
|
474 char *line; |
|
64
|
475 int first = 1; |
|
529
|
476 while ((line = edit_history_readline (file)) != 0) |
|
1
|
477 { |
|
1358
|
478 // Skip blank lines. |
|
1
|
479 |
|
|
480 if (line[0] == '\n') |
|
|
481 { |
|
|
482 delete [] line; |
|
|
483 continue; |
|
|
484 } |
|
|
485 |
|
64
|
486 if (first) |
|
|
487 { |
|
|
488 first = 0; |
|
|
489 edit_history_repl_hist (line); |
|
|
490 } |
|
|
491 else |
|
|
492 edit_history_add_hist (line); |
|
1
|
493 } |
|
|
494 |
|
|
495 file.close (); |
|
|
496 |
|
1358
|
497 // Turn on command echo, so the output from this will make better |
|
|
498 // sense. |
|
1
|
499 |
|
2985
|
500 unwind_protect::begin_frame ("do_edit_history"); |
|
3018
|
501 |
|
2205
|
502 unwind_protect_int (Vecho_executing_commands); |
|
3018
|
503 unwind_protect_bool (input_from_tmp_history_file); |
|
|
504 |
|
2205
|
505 Vecho_executing_commands = ECHO_CMD_LINE; |
|
3018
|
506 input_from_tmp_history_file = true; |
|
1
|
507 |
|
2897
|
508 parse_and_execute (name); |
|
1
|
509 |
|
2985
|
510 unwind_protect::run_frame ("do_edit_history"); |
|
1
|
511 |
|
1358
|
512 // Delete the temporary file. Should probably be done with an |
|
|
513 // unwind_protect. |
|
1
|
514 |
|
1755
|
515 unlink (name.c_str ()); |
|
1
|
516 } |
|
|
517 |
|
1755
|
518 static void |
|
|
519 do_run_history (int argc, const string_vector& argv) |
|
64
|
520 { |
|
3523
|
521 std::string name = mk_tmp_hist_file (argc, argv, 1, "run_history"); |
|
64
|
522 |
|
1755
|
523 if (name.empty ()) |
|
64
|
524 return; |
|
|
525 |
|
1799
|
526 // Turn on command echo so the output from this will make better |
|
1358
|
527 // sense. |
|
64
|
528 |
|
2985
|
529 unwind_protect::begin_frame ("do_run_history"); |
|
3018
|
530 |
|
2205
|
531 unwind_protect_int (Vecho_executing_commands); |
|
3018
|
532 unwind_protect_bool (input_from_tmp_history_file); |
|
|
533 |
|
2205
|
534 Vecho_executing_commands = ECHO_CMD_LINE; |
|
3018
|
535 input_from_tmp_history_file = true; |
|
64
|
536 |
|
2897
|
537 parse_and_execute (name); |
|
64
|
538 |
|
2985
|
539 unwind_protect::run_frame ("do_run_history"); |
|
64
|
540 |
|
1799
|
541 // Delete the temporary file. |
|
|
542 |
|
5775
|
543 // FIXME -- should probably be done using an unwind_protect. |
|
64
|
544 |
|
1755
|
545 unlink (name.c_str ()); |
|
64
|
546 } |
|
|
547 |
|
5305
|
548 void |
|
5794
|
549 initialize_history (void) |
|
|
550 { |
|
5872
|
551 command_history::set_file (Vhistory_file); |
|
5800
|
552 command_history::set_size (Vhistory_size); |
|
|
553 |
|
5794
|
554 command_history::read (false); |
|
|
555 } |
|
|
556 |
|
|
557 void |
|
5305
|
558 octave_history_write_timestamp (void) |
|
|
559 { |
|
|
560 octave_localtime now; |
|
|
561 |
|
|
562 std::string timestamp = now.strftime (Vhistory_timestamp_format_string); |
|
|
563 |
|
|
564 if (! timestamp.empty ()) |
|
|
565 command_history::add (timestamp); |
|
|
566 } |
|
|
567 |
|
4208
|
568 DEFCMD (edit_history, args, , |
|
3332
|
569 "-*- texinfo -*-\n\ |
|
|
570 @deffn {Command} edit_history options\n\ |
|
|
571 If invoked with no arguments, @code{edit_history} allows you to edit the\n\ |
|
|
572 history list using the editor named by the variable @code{EDITOR}. The\n\ |
|
|
573 commands to be edited are first copied to a temporary file. When you\n\ |
|
|
574 exit the editor, Octave executes the commands that remain in the file.\n\ |
|
|
575 It is often more convenient to use @code{edit_history} to define functions \n\ |
|
|
576 rather than attempting to enter them directly on the command line.\n\ |
|
|
577 By default, the block of commands is executed as soon as you exit the\n\ |
|
|
578 editor. To avoid executing any commands, simply delete all the lines\n\ |
|
|
579 from the buffer before exiting the editor.\n\ |
|
|
580 \n\ |
|
|
581 The @code{edit_history} command takes two optional arguments specifying\n\ |
|
|
582 the history numbers of first and last commands to edit. For example,\n\ |
|
|
583 the command\n\ |
|
529
|
584 \n\ |
|
3332
|
585 @example\n\ |
|
|
586 edit_history 13\n\ |
|
|
587 @end example\n\ |
|
|
588 \n\ |
|
|
589 @noindent\n\ |
|
|
590 extracts all the commands from the 13th through the last in the history\n\ |
|
|
591 list. The command\n\ |
|
|
592 \n\ |
|
|
593 @example\n\ |
|
|
594 edit_history 13 169\n\ |
|
|
595 @end example\n\ |
|
|
596 \n\ |
|
|
597 @noindent\n\ |
|
|
598 only extracts commands 13 through 169. Specifying a larger number for\n\ |
|
|
599 the first command than the last command reverses the list of commands\n\ |
|
|
600 before placing them in the buffer to be edited. If both arguments are\n\ |
|
|
601 omitted, the previous command in the history list is used.\n\ |
|
3333
|
602 @end deffn") |
|
529
|
603 { |
|
2086
|
604 octave_value_list retval; |
|
529
|
605 |
|
1755
|
606 int argc = args.length () + 1; |
|
|
607 |
|
1968
|
608 string_vector argv = args.make_argv ("edit_history"); |
|
1755
|
609 |
|
|
610 if (error_state) |
|
|
611 return retval; |
|
529
|
612 |
|
|
613 do_edit_history (argc, argv); |
|
|
614 |
|
|
615 return retval; |
|
|
616 } |
|
|
617 |
|
4208
|
618 DEFCMD (history, args, , |
|
3332
|
619 "-*- texinfo -*-\n\ |
|
|
620 @deffn {Command} history options\n\ |
|
|
621 If invoked with no arguments, @code{history} displays a list of commands\n\ |
|
|
622 that you have executed. Valid options are:\n\ |
|
|
623 \n\ |
|
|
624 @table @code\n\ |
|
|
625 @item -w @var{file}\n\ |
|
|
626 Write the current history to the file @var{file}. If the name is\n\ |
|
|
627 omitted, use the default history file (normally @file{~/.octave_hist}).\n\ |
|
529
|
628 \n\ |
|
3332
|
629 @item -r @var{file}\n\ |
|
|
630 Read the file @var{file}, replacing the current history list with its\n\ |
|
|
631 contents. If the name is omitted, use the default history file\n\ |
|
|
632 (normally @file{~/.octave_hist}).\n\ |
|
|
633 \n\ |
|
3499
|
634 @item @var{n}\n\ |
|
|
635 Only display the most recent @var{n} lines of history.\n\ |
|
3332
|
636 \n\ |
|
|
637 @item -q\n\ |
|
|
638 Don't number the displayed lines of history. This is useful for cutting\n\ |
|
|
639 and pasting commands if you are using the X Window System.\n\ |
|
|
640 @end table\n\ |
|
|
641 \n\ |
|
|
642 For example, to display the five most recent commands that you have\n\ |
|
|
643 typed without displaying line numbers, use the command\n\ |
|
|
644 @kbd{history -q 5}.\n\ |
|
3333
|
645 @end deffn") |
|
529
|
646 { |
|
2086
|
647 octave_value_list retval; |
|
529
|
648 |
|
1755
|
649 int argc = args.length () + 1; |
|
|
650 |
|
1968
|
651 string_vector argv = args.make_argv ("history"); |
|
1755
|
652 |
|
|
653 if (error_state) |
|
|
654 return retval; |
|
529
|
655 |
|
|
656 do_history (argc, argv); |
|
|
657 |
|
|
658 return retval; |
|
|
659 } |
|
|
660 |
|
4208
|
661 DEFCMD (run_history, args, , |
|
3332
|
662 "-*- texinfo -*-\n\ |
|
|
663 @deffn {Command} run_history [first] [last]\n\ |
|
|
664 Similar to @code{edit_history}, except that the editor is not invoked,\n\ |
|
|
665 and the commands are simply executed as they appear in the history list.\n\ |
|
3333
|
666 @end deffn") |
|
529
|
667 { |
|
2086
|
668 octave_value_list retval; |
|
529
|
669 |
|
1755
|
670 int argc = args.length () + 1; |
|
|
671 |
|
1968
|
672 string_vector argv = args.make_argv ("run_history"); |
|
1755
|
673 |
|
|
674 if (error_state) |
|
|
675 return retval; |
|
529
|
676 |
|
|
677 do_run_history (argc, argv); |
|
|
678 |
|
|
679 return retval; |
|
|
680 } |
|
|
681 |
|
5794
|
682 DEFUN (history_size, args, nargout, |
|
|
683 "-*- texinfo -*-\n\ |
|
|
684 @deftypefn {Built-in Function} {@var{val} =} history_size ()\n\ |
|
|
685 @deftypefnx {Built-in Function} {@var{old_val} =} history_size (@var{new_val})\n\ |
|
|
686 Query or set the internal variable that specifies how many entries\n\ |
|
|
687 to store in the history file. The default value is @code{1024},\n\ |
|
|
688 but may be overridden by the environment variable @code{OCTAVE_HISTSIZE}.\n\ |
|
|
689 @seealso{history_file, history_timestamp_format, saving_history}\n\ |
|
|
690 @end deftypefn") |
|
3016
|
691 { |
|
5800
|
692 int saved_history_size = Vhistory_size; |
|
|
693 |
|
|
694 octave_value retval |
|
|
695 = SET_INTERNAL_VARIABLE_WITH_LIMITS (history_size, -1, INT_MAX); |
|
|
696 |
|
|
697 if (Vhistory_size != saved_history_size) |
|
|
698 command_history::set_size (Vhistory_size); |
|
|
699 |
|
|
700 return retval; |
|
3016
|
701 } |
|
|
702 |
|
5794
|
703 DEFUN (history_file, args, nargout, |
|
|
704 "-*- texinfo -*-\n\ |
|
|
705 @deftypefn {Built-in Function} {@var{val} =} history_file ()\n\ |
|
|
706 @deftypefnx {Built-in Function} {@var{old_val} =} history_file (@var{new_val})\n\ |
|
|
707 Query or set the internal variable that specifies the name of the\n\ |
|
|
708 file used to store command history. The default value is\n\ |
|
|
709 @code{\"~/.octave_hist\"}, but may be overridden by the environment\n\ |
|
|
710 variable @code{OCTAVE_HISTFILE}.\n\ |
|
|
711 @seealso{history_size, saving_history, history_timestamp_format_string}\n\ |
|
|
712 @end deftypefn") |
|
5305
|
713 { |
|
5794
|
714 std::string saved_history_file = Vhistory_file; |
|
5305
|
715 |
|
5794
|
716 octave_value retval = SET_INTERNAL_VARIABLE (history_file); |
|
5305
|
717 |
|
5794
|
718 if (Vhistory_file != saved_history_file) |
|
5872
|
719 command_history::set_file (Vhistory_file); |
|
5305
|
720 |
|
5800
|
721 return retval; |
|
3016
|
722 } |
|
|
723 |
|
5794
|
724 DEFUN (history_timestamp_format_string, args, nargout, |
|
|
725 "-*- texinfo -*-\n\ |
|
|
726 @deftypefn {Built-in Function} {@var{val} =} history_timestamp_format_string ()\n\ |
|
|
727 @deftypefnx {Built-in Function} {@var{old_val} =} history_timestamp_format_string (@var{new_val})\n\ |
|
|
728 Query or set the internal variable that specifies the the format string\n\ |
|
|
729 for the comment line that is written to the history file when Octave\n\ |
|
|
730 exits. The format string is passed to @code{strftime}. The default\n\ |
|
|
731 value is\n\ |
|
5305
|
732 \n\ |
|
|
733 @example\n\ |
|
|
734 \"# Octave VERSION, %a %b %d %H:%M:%S %Y %Z <USER@@HOST>\"\n\ |
|
|
735 @end example\n\ |
|
5794
|
736 @seealso{strftime, history_file, history_size, saving_history}\n\ |
|
|
737 @end deftypefn") |
|
|
738 { |
|
|
739 return SET_INTERNAL_VARIABLE (history_timestamp_format_string); |
|
|
740 } |
|
5305
|
741 |
|
5794
|
742 DEFUN (saving_history, args, nargout, |
|
|
743 "-*- texinfo -*-\n\ |
|
|
744 @deftypefn {Built-in Function} {@var{val} =} saving_history ()\n\ |
|
|
745 @deftypefnx {Built-in Function} {@var{old_val} =} saving_history (@var{new_val})\n\ |
|
|
746 Query or set the internal variable that controls whether commands entered\n\ |
|
|
747 on the command line are saved in the history file.\n\ |
|
|
748 @seealso{history_file, history_size, history_timestamp_format}.\n\ |
|
|
749 @end deftypefn") |
|
|
750 { |
|
|
751 octave_value retval = SET_INTERNAL_VARIABLE (saving_history); |
|
|
752 |
|
|
753 command_history::ignore_entries (! Vsaving_history); |
|
|
754 |
|
|
755 return retval; |
|
3016
|
756 } |
|
|
757 |
|
1
|
758 /* |
|
|
759 ;;; Local Variables: *** |
|
|
760 ;;; mode: C++ *** |
|
|
761 ;;; End: *** |
|
|
762 */ |
