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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2000, 2002, 2004, 2005, 2006, 2007 |
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4 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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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 <cstring> |
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29 |
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30 #include <iostream> |
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31 #include <string> |
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32 |
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33 #include "cmd-edit.h" |
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34 #include "cmd-hist.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 "str-vec.h" |
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38 |
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39 command_history *command_history::instance = 0; |
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40 |
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41 #if defined (USE_READLINE) |
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42 |
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43 #include <cstdlib> |
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44 |
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45 #ifdef HAVE_FCNTL_H |
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46 #include <fcntl.h> |
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47 #endif |
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48 |
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49 #include <sys/types.h> |
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50 #include <unistd.h> |
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51 |
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52 #include "oct-rl-hist.h" |
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53 |
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54 #include "file-stat.h" |
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55 |
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56 class |
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57 gnu_history : public command_history |
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58 { |
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59 public: |
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60 |
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61 gnu_history (void) |
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62 : command_history (), mark (0) { } |
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63 |
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64 ~gnu_history (void) { } |
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65 |
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66 void do_add (const std::string&); |
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67 |
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68 void do_remove (int); |
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69 |
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70 int do_where (void); |
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71 |
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72 int do_length (void); |
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73 |
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74 int do_max_input_history (void); |
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75 |
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76 int do_base (void); |
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77 |
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78 int do_current_number (void); |
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79 |
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80 void do_stifle (int); |
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81 |
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82 int do_unstifle (void); |
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83 |
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84 int do_is_stifled (void); |
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85 |
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86 void do_set_mark (int); |
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87 |
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88 int do_goto_mark (void); |
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89 |
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90 void do_read (const std::string&, bool); |
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91 |
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92 void do_read_range (const std::string&, int, int, bool); |
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93 |
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94 void do_write (const std::string&); |
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95 |
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96 void do_append (const std::string&); |
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97 |
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98 void do_truncate_file (const std::string&, int); |
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99 |
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100 string_vector do_list (int, bool); |
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101 |
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102 std::string do_get_entry (int); |
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103 |
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104 void do_replace_entry (int, const std::string&); |
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105 |
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106 void do_clean_up_and_save (const std::string&, int); |
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107 |
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108 private: |
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109 |
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110 int mark; |
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111 }; |
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112 |
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113 void |
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114 gnu_history::do_add (const std::string& s) |
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115 { |
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116 if (! do_ignoring_entries ()) |
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117 { |
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118 if (s.empty () |
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119 || (s.length () == 1 && (s[0] == '\r' || s[0] == '\n'))) |
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120 return; |
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121 |
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122 ::octave_add_history (s.c_str ()); |
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123 |
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124 lines_this_session++; |
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125 } |
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126 } |
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127 |
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128 void |
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129 gnu_history::do_remove (int n) |
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130 { |
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131 ::octave_remove_history (n); |
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132 } |
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133 |
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134 int |
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135 gnu_history::do_where (void) |
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136 { |
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137 return ::octave_where_history (); |
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138 } |
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139 |
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140 int |
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141 gnu_history::do_length (void) |
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142 { |
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143 return ::octave_history_length (); |
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144 } |
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145 |
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146 int |
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147 gnu_history::do_max_input_history (void) |
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148 { |
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149 return ::octave_max_input_history (); |
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150 } |
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151 |
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152 int |
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153 gnu_history::do_base (void) |
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154 { |
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155 return ::octave_history_base (); |
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156 } |
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157 |
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158 int |
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159 gnu_history::do_current_number (void) |
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160 { |
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161 return (xsize > 0) ? do_base () + do_where () : -1; |
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162 } |
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163 |
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164 void |
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165 gnu_history::do_stifle (int n) |
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166 { |
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167 ::octave_stifle_history (n); |
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168 } |
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169 |
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170 int |
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171 gnu_history::do_unstifle (void) |
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172 { |
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173 return ::octave_unstifle_history (); |
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174 } |
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175 |
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176 int |
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177 gnu_history::do_is_stifled (void) |
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178 { |
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179 return ::octave_history_is_stifled (); |
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180 } |
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181 |
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182 void |
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183 gnu_history::do_set_mark (int n) |
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184 { |
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185 mark = n; |
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186 } |
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187 |
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188 int |
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189 gnu_history::do_goto_mark (void) |
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190 { |
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191 if (mark) |
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192 { |
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193 char *line = ::octave_history_goto_mark (mark); |
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194 |
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195 if (line) |
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196 { |
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197 command_editor::insert_text (line); |
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198 |
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199 command_editor::clear_undo_list (); |
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200 } |
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201 } |
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202 |
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203 mark = 0; |
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204 |
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205 // FIXME -- for operate_and_get_next. |
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206 command_editor::remove_startup_hook (command_history::goto_mark); |
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207 |
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208 return 0; |
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209 } |
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210 |
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211 void |
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212 gnu_history::do_read (const std::string& f, bool must_exist) |
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213 { |
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214 if (! f.empty ()) |
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215 { |
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216 int status = ::octave_read_history (f.c_str ()); |
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217 |
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218 if (status != 0 && must_exist) |
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219 error (status); |
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220 else |
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221 { |
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222 lines_in_file = do_where (); |
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223 |
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224 ::octave_using_history (); |
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225 } |
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226 } |
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227 else |
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228 error ("gnu_history::read: missing file name"); |
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229 } |
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230 |
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231 void |
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232 gnu_history::do_read_range (const std::string& f, int from, int to, |
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233 bool must_exist) |
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234 { |
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235 if (from < 0) |
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236 from = lines_in_file; |
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237 |
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238 if (! f.empty ()) |
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239 { |
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240 int status = ::octave_read_history_range (f.c_str (), from, to); |
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241 |
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242 if (status != 0 && must_exist) |
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243 error (status); |
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244 else |
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245 { |
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246 lines_in_file = do_where (); |
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247 |
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248 ::octave_using_history (); |
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249 } |
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250 } |
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251 else |
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252 error ("gnu_history::read_range: missing file name"); |
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253 } |
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254 |
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255 void |
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256 gnu_history::do_write (const std::string& f_arg) |
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257 { |
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258 std::string f = f_arg; |
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259 |
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260 if (f.empty ()) |
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261 f = xfile; |
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262 |
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263 if (! f.empty ()) |
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264 { |
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265 int status = ::octave_write_history (f.c_str ()); |
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266 |
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267 if (status != 0) |
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268 error (status); |
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269 } |
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270 else |
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271 error ("gnu_history::write: missing file name"); |
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272 } |
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273 |
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274 void |
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275 gnu_history::do_append (const std::string& f_arg) |
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276 { |
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277 if (lines_this_session) |
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278 { |
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279 if (lines_this_session < do_where ()) |
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280 { |
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281 // Create file if it doesn't already exist. |
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282 |
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283 std::string f = f_arg; |
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284 |
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285 if (f.empty ()) |
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286 f = xfile; |
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287 |
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288 if (! f.empty ()) |
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289 { |
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290 file_stat fs (f); |
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291 |
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292 if (! fs) |
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293 { |
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294 int tem; |
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295 |
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296 tem = open (f.c_str (), O_CREAT, 0666); |
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297 close (tem); |
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298 } |
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299 |
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300 int status |
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301 = ::octave_append_history (lines_this_session, f.c_str ()); |
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302 |
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303 if (status != 0) |
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304 error (status); |
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305 else |
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306 lines_in_file += lines_this_session; |
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307 |
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308 lines_this_session = 0; |
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309 } |
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310 else |
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311 error ("gnu_history::append: missing file name"); |
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312 } |
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313 } |
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314 } |
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315 |
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316 void |
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317 gnu_history::do_truncate_file (const std::string& f_arg, int n) |
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318 { |
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319 std::string f = f_arg; |
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320 |
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321 if (f.empty ()) |
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322 f = xfile; |
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323 |
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324 if (! f.empty ()) |
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325 ::octave_history_truncate_file (f.c_str (), n); |
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326 else |
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327 error ("gnu_history::truncate_file: missing file name"); |
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328 } |
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329 |
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330 string_vector |
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331 gnu_history::do_list (int limit, bool number_lines) |
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332 { |
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333 string_vector retval; |
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334 |
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335 if (limit) |
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336 retval = ::octave_history_list (limit, number_lines); |
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337 |
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338 return retval; |
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339 } |
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340 |
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341 std::string |
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342 gnu_history::do_get_entry (int n) |
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343 { |
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344 std::string retval; |
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345 |
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346 char *line = ::octave_history_get (do_base () + n); |
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347 |
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348 if (line) |
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349 retval = line; |
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350 |
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351 return retval; |
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352 } |
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353 |
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354 void |
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355 gnu_history::do_replace_entry (int which, const std::string& line) |
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356 { |
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357 ::octave_replace_history_entry (which, line.c_str ()); |
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358 } |
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359 |
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360 void |
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361 gnu_history::do_clean_up_and_save (const std::string& f_arg, int n) |
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362 { |
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363 std::string f = f_arg; |
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364 |
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365 if (f.empty ()) |
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366 f = xfile; |
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367 |
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368 if (! f.empty ()) |
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369 { |
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370 if (n < 0) |
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371 n = xsize; |
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372 |
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373 stifle (n); |
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374 |
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375 do_write (f.c_str ()); |
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376 } |
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377 else |
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378 error ("gnu_history::clean_up_and_save: missing file name"); |
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379 } |
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380 |
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381 #endif |
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382 |
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383 bool |
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384 command_history::instance_ok (void) |
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385 { |
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386 bool retval = true; |
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387 |
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388 if (! instance) |
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389 make_command_history (); |
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390 |
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391 if (! instance) |
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392 { |
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393 (*current_liboctave_error_handler) |
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394 ("unable to create command history object!"); |
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395 |
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396 retval = false; |
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397 } |
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398 |
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399 return retval; |
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400 } |
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401 |
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402 void |
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403 command_history::make_command_history (void) |
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404 { |
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405 #if defined (USE_READLINE) |
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406 instance = new gnu_history (); |
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407 #else |
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408 instance = new command_history (); |
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409 #endif |
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410 } |
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411 |
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412 void |
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413 command_history::set_file (const std::string& f_arg) |
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414 { |
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415 if (instance_ok ()) |
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416 { |
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417 std::string f = file_ops::tilde_expand (f_arg); |
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418 |
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419 instance->do_set_file (f); |
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420 } |
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421 } |
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422 |
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423 std::string |
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424 command_history::file (void) |
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425 { |
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426 return (instance_ok ()) |
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427 ? instance->do_file () : std::string (); |
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428 } |
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429 |
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430 void |
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431 command_history::set_size (int n) |
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432 { |
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433 if (instance_ok ()) |
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434 instance->do_set_size (n); |
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435 } |
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436 |
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437 int |
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438 command_history::size (void) |
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439 { |
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440 return (instance_ok ()) |
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441 ? instance->do_size () : 0; |
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442 } |
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443 |
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444 void |
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445 command_history::ignore_entries (bool flag) |
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446 { |
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447 if (instance_ok ()) |
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448 instance->do_ignore_entries (flag); |
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449 } |
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450 |
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451 bool |
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452 command_history::ignoring_entries (void) |
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453 { |
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454 return (instance_ok ()) |
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455 ? instance->do_ignoring_entries () : false; |
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456 } |
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457 |
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458 void |
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459 command_history::add (const std::string& s) |
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460 { |
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461 if (instance_ok ()) |
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462 instance->do_add (s); |
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463 } |
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464 |
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465 void |
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466 command_history::remove (int n) |
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467 { |
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468 if (instance_ok ()) |
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469 instance->do_remove (n); |
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470 } |
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471 |
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472 int |
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473 command_history::where (void) |
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474 { |
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475 return (instance_ok ()) |
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476 ? instance->do_where () : 0; |
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477 } |
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478 |
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479 int |
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480 command_history::length (void) |
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481 { |
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482 return (instance_ok ()) |
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483 ? instance->do_length () : 0; |
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484 } |
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485 |
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486 int |
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487 command_history::max_input_history (void) |
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488 { |
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489 return (instance_ok ()) |
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490 ? instance->do_max_input_history () : 0; |
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491 } |
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492 |
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493 int |
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494 command_history::base (void) |
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495 { |
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496 return (instance_ok ()) |
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497 ? instance->do_base () : 0; |
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498 } |
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499 |
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500 int |
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501 command_history::current_number (void) |
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502 { |
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503 return (instance_ok ()) |
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504 ? instance->do_current_number () : 0; |
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|
505 } |
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506 |
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507 void |
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508 command_history::stifle (int n) |
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509 { |
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510 if (instance_ok ()) |
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511 instance->do_stifle (n); |
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512 } |
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|
513 |
|
|
514 int |
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515 command_history::unstifle (void) |
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516 { |
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517 return (instance_ok ()) |
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518 ? instance->do_unstifle () : 0; |
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519 } |
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520 |
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521 int |
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522 command_history::is_stifled (void) |
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523 { |
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524 return (instance_ok ()) |
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525 ? instance->do_is_stifled () : 0; |
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526 } |
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527 |
|
|
528 void |
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529 command_history::set_mark (int n) |
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530 { |
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531 if (instance_ok ()) |
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532 instance->do_set_mark (n); |
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533 } |
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534 |
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4802
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535 int |
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3519
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536 command_history::goto_mark (void) |
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2926
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537 { |
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4802
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538 return (instance_ok ()) |
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539 ? instance->do_goto_mark () : 0; |
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2926
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540 } |
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541 |
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542 void |
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543 command_history::read (bool must_exist) |
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544 { |
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3522
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545 read (file (), must_exist); |
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2926
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546 } |
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547 |
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548 void |
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3504
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549 command_history::read (const std::string& f, bool must_exist) |
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2926
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550 { |
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551 if (instance_ok ()) |
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552 instance->do_read (f, must_exist); |
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553 } |
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554 |
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555 void |
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556 command_history::read_range (int from, int to, bool must_exist) |
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557 { |
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3522
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558 read_range (file (), from, to, must_exist); |
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2926
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559 } |
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560 |
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561 void |
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3504
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562 command_history::read_range (const std::string& f, int from, int to, |
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2926
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563 bool must_exist) |
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564 { |
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565 if (instance_ok ()) |
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566 instance->do_read_range (f, from, to, must_exist); |
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567 } |
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568 |
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569 void |
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3504
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570 command_history::write (const std::string& f) |
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2926
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571 { |
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572 if (instance_ok ()) |
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573 instance->do_write (f); |
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574 } |
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575 |
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|
576 void |
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3504
|
577 command_history::append (const std::string& f) |
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2926
|
578 { |
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|
579 if (instance_ok ()) |
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|
580 instance->do_append (f); |
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|
581 } |
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582 |
|
|
583 void |
|
3504
|
584 command_history::truncate_file (const std::string& f, int n) |
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2926
|
585 { |
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586 if (instance_ok ()) |
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|
587 instance->do_truncate_file (f, n); |
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588 } |
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589 |
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|
590 string_vector |
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|
591 command_history::list (int limit, bool number_lines) |
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592 { |
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593 return (instance_ok ()) |
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594 ? instance->do_list (limit, number_lines) : string_vector (); |
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|
595 } |
|
|
596 |
|
3504
|
597 std::string |
|
2926
|
598 command_history::get_entry (int n) |
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|
599 { |
|
|
600 return (instance_ok ()) |
|
3504
|
601 ? instance->do_get_entry (n) : std::string (); |
|
2926
|
602 } |
|
|
603 |
|
|
604 void |
|
3504
|
605 command_history::replace_entry (int which, const std::string& line) |
|
2926
|
606 { |
|
|
607 if (instance_ok ()) |
|
|
608 instance->do_replace_entry (which, line); |
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|
609 } |
|
|
610 |
|
|
611 void |
|
3504
|
612 command_history::clean_up_and_save (const std::string& f, int n) |
|
2926
|
613 { |
|
|
614 if (instance_ok ()) |
|
|
615 instance->do_clean_up_and_save (f, n); |
|
|
616 } |
|
|
617 |
|
|
618 void |
|
3504
|
619 command_history::do_set_file (const std::string& f) |
|
2926
|
620 { |
|
|
621 xfile = f; |
|
|
622 } |
|
|
623 |
|
3504
|
624 std::string |
|
2926
|
625 command_history::do_file (void) |
|
|
626 { |
|
|
627 return xfile; |
|
|
628 } |
|
|
629 |
|
|
630 void |
|
|
631 command_history::do_set_size (int n) |
|
|
632 { |
|
|
633 xsize = n; |
|
|
634 } |
|
|
635 |
|
|
636 int |
|
|
637 command_history::do_size (void) |
|
|
638 { |
|
|
639 return xsize; |
|
|
640 } |
|
|
641 |
|
|
642 void |
|
|
643 command_history::do_ignore_entries (bool flag) |
|
|
644 { |
|
|
645 ignoring_additions = flag; |
|
|
646 } |
|
|
647 |
|
|
648 bool |
|
|
649 command_history::do_ignoring_entries (void) |
|
|
650 { |
|
|
651 return ignoring_additions; |
|
|
652 } |
|
|
653 |
|
|
654 void |
|
3504
|
655 command_history::do_add (const std::string&) |
|
2926
|
656 { |
|
|
657 } |
|
|
658 |
|
|
659 void |
|
|
660 command_history::do_remove (int) |
|
|
661 { |
|
|
662 } |
|
|
663 |
|
|
664 int |
|
|
665 command_history::do_where (void) |
|
|
666 { |
|
|
667 return 0; |
|
|
668 } |
|
|
669 |
|
|
670 int |
|
|
671 command_history::do_length (void) |
|
|
672 { |
|
|
673 return 0; |
|
|
674 } |
|
|
675 |
|
|
676 int |
|
|
677 command_history::do_max_input_history (void) |
|
|
678 { |
|
|
679 return 0; |
|
|
680 } |
|
|
681 |
|
|
682 int |
|
|
683 command_history::do_base (void) |
|
|
684 { |
|
|
685 return 0; |
|
|
686 } |
|
|
687 |
|
|
688 int |
|
|
689 command_history::do_current_number (void) |
|
|
690 { |
|
|
691 return (xsize > 0) ? do_base () + do_where () : -1; |
|
|
692 } |
|
|
693 |
|
|
694 void |
|
|
695 command_history::do_stifle (int) |
|
|
696 { |
|
|
697 } |
|
|
698 |
|
|
699 int |
|
|
700 command_history::do_unstifle (void) |
|
|
701 { |
|
|
702 return -1; |
|
|
703 } |
|
|
704 |
|
|
705 int |
|
|
706 command_history::do_is_stifled (void) |
|
|
707 { |
|
|
708 return 0; |
|
|
709 } |
|
|
710 |
|
|
711 void |
|
|
712 command_history::do_set_mark (int) |
|
|
713 { |
|
|
714 } |
|
|
715 |
|
4802
|
716 int |
|
2926
|
717 command_history::do_goto_mark (void) |
|
|
718 { |
|
4802
|
719 return 0; |
|
2926
|
720 } |
|
|
721 |
|
|
722 void |
|
3504
|
723 command_history::do_read (const std::string& f, bool) |
|
2926
|
724 { |
|
|
725 if (f.empty ()) |
|
|
726 error ("command_history::read: missing file name"); |
|
|
727 } |
|
|
728 |
|
|
729 void |
|
3504
|
730 command_history::do_read_range (const std::string& f, int, int, bool) |
|
2926
|
731 { |
|
|
732 if (f.empty ()) |
|
|
733 error ("command_history::read_range: missing file name"); |
|
|
734 } |
|
|
735 |
|
|
736 void |
|
3504
|
737 command_history::do_write (const std::string& f_arg) |
|
2926
|
738 { |
|
3504
|
739 std::string f = f_arg; |
|
2926
|
740 |
|
|
741 if (f.empty ()) |
|
|
742 f = xfile; |
|
|
743 |
|
|
744 if (f.empty ()) |
|
|
745 error ("command_history::write: missing file name"); |
|
|
746 } |
|
|
747 |
|
|
748 void |
|
3504
|
749 command_history::do_append (const std::string& f_arg) |
|
2926
|
750 { |
|
|
751 if (lines_this_session) |
|
|
752 { |
|
|
753 if (lines_this_session < do_where ()) |
|
|
754 { |
|
|
755 // Create file if it doesn't already exist. |
|
|
756 |
|
3504
|
757 std::string f = f_arg; |
|
2926
|
758 |
|
|
759 if (f.empty ()) |
|
|
760 f = xfile; |
|
|
761 |
|
|
762 if (f.empty ()) |
|
|
763 error ("command_history::append: missing file name"); |
|
|
764 } |
|
|
765 } |
|
|
766 } |
|
|
767 |
|
|
768 void |
|
3504
|
769 command_history::do_truncate_file (const std::string& f_arg, int) |
|
2926
|
770 { |
|
3504
|
771 std::string f = f_arg; |
|
2926
|
772 |
|
|
773 if (f.empty ()) |
|
|
774 f = xfile; |
|
|
775 |
|
|
776 if (f.empty ()) |
|
|
777 error ("command_history::truncate_file: missing file name"); |
|
|
778 } |
|
|
779 |
|
|
780 string_vector |
|
|
781 command_history::do_list (int, bool) |
|
|
782 { |
|
|
783 return string_vector (); |
|
|
784 } |
|
|
785 |
|
3504
|
786 std::string |
|
2926
|
787 command_history::do_get_entry (int) |
|
|
788 { |
|
3504
|
789 return std::string (); |
|
2926
|
790 } |
|
|
791 |
|
|
792 void |
|
3504
|
793 command_history::do_replace_entry (int, const std::string&) |
|
2926
|
794 { |
|
|
795 } |
|
|
796 |
|
|
797 void |
|
3504
|
798 command_history::do_clean_up_and_save (const std::string& f_arg, int) |
|
2926
|
799 { |
|
3504
|
800 std::string f = f_arg; |
|
2926
|
801 |
|
|
802 if (f.empty ()) |
|
|
803 f = xfile; |
|
|
804 |
|
|
805 if (f.empty ()) |
|
1797
|
806 error ("command_history::clean_up_and_save: missing file name"); |
|
|
807 } |
|
|
808 |
|
|
809 void |
|
2470
|
810 command_history::error (int err_num) |
|
1797
|
811 { |
|
2470
|
812 (*current_liboctave_error_handler) ("%s", strerror (err_num)); |
|
1797
|
813 } |
|
|
814 |
|
|
815 void |
|
3504
|
816 command_history::error (const std::string& s) |
|
1797
|
817 { |
|
|
818 (*current_liboctave_error_handler) ("%s", s.c_str ()); |
|
|
819 } |
