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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 #ifdef HAVE_UNISTD_H |
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50 #ifdef HAVE_SYS_TYPES_H |
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51 #include <sys/types.h> |
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52 #endif |
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53 #include <unistd.h> |
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54 #endif |
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55 |
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56 #include "oct-rl-hist.h" |
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57 |
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58 #include "file-stat.h" |
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59 |
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60 class |
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61 gnu_history : public command_history |
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62 { |
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63 public: |
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64 |
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65 gnu_history (void) |
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66 : command_history (), mark (0) { } |
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67 |
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68 ~gnu_history (void) { } |
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69 |
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70 void do_add (const std::string&); |
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71 |
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72 void do_remove (int); |
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73 |
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74 int do_where (void); |
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75 |
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76 int do_length (void); |
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77 |
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78 int do_max_input_history (void); |
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79 |
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80 int do_base (void); |
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81 |
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82 int do_current_number (void); |
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83 |
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84 void do_stifle (int); |
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85 |
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86 int do_unstifle (void); |
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87 |
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88 int do_is_stifled (void); |
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89 |
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90 void do_set_mark (int); |
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91 |
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92 int do_goto_mark (void); |
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93 |
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94 void do_read (const std::string&, bool); |
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95 |
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96 void do_read_range (const std::string&, int, int, bool); |
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97 |
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98 void do_write (const std::string&); |
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99 |
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100 void do_append (const std::string&); |
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101 |
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102 void do_truncate_file (const std::string&, int); |
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103 |
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104 string_vector do_list (int, bool); |
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105 |
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106 std::string do_get_entry (int); |
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107 |
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108 void do_replace_entry (int, const std::string&); |
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109 |
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110 void do_clean_up_and_save (const std::string&, int); |
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111 |
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112 private: |
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113 |
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114 int mark; |
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115 }; |
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116 |
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117 void |
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118 gnu_history::do_add (const std::string& s) |
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119 { |
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120 if (! do_ignoring_entries ()) |
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121 { |
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122 if (s.empty () |
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123 || (s.length () == 1 && (s[0] == '\r' || s[0] == '\n'))) |
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124 return; |
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125 |
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126 ::octave_add_history (s.c_str ()); |
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127 |
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128 lines_this_session++; |
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129 } |
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130 } |
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131 |
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132 void |
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133 gnu_history::do_remove (int n) |
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134 { |
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135 ::octave_remove_history (n); |
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136 } |
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137 |
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138 int |
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139 gnu_history::do_where (void) |
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140 { |
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141 return ::octave_where_history (); |
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142 } |
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143 |
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144 int |
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145 gnu_history::do_length (void) |
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146 { |
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147 return ::octave_history_length (); |
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148 } |
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149 |
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150 int |
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151 gnu_history::do_max_input_history (void) |
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152 { |
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153 return ::octave_max_input_history (); |
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154 } |
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155 |
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156 int |
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157 gnu_history::do_base (void) |
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158 { |
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159 return ::octave_history_base (); |
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160 } |
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161 |
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162 int |
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163 gnu_history::do_current_number (void) |
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164 { |
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165 return (xsize > 0) ? do_base () + do_where () : -1; |
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166 } |
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167 |
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168 void |
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169 gnu_history::do_stifle (int n) |
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170 { |
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171 ::octave_stifle_history (n); |
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172 } |
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173 |
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174 int |
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175 gnu_history::do_unstifle (void) |
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176 { |
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177 return ::octave_unstifle_history (); |
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178 } |
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179 |
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180 int |
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181 gnu_history::do_is_stifled (void) |
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182 { |
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183 return ::octave_history_is_stifled (); |
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184 } |
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185 |
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186 void |
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187 gnu_history::do_set_mark (int n) |
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188 { |
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189 mark = n; |
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190 } |
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191 |
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192 int |
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193 gnu_history::do_goto_mark (void) |
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194 { |
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195 if (mark) |
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196 { |
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197 char *line = ::octave_history_goto_mark (mark); |
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198 |
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199 if (line) |
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200 { |
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201 command_editor::insert_text (line); |
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202 |
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203 command_editor::clear_undo_list (); |
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204 } |
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205 } |
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206 |
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207 mark = 0; |
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208 |
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209 // FIXME -- for operate_and_get_next. |
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210 command_editor::remove_startup_hook (command_history::goto_mark); |
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211 |
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212 return 0; |
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213 } |
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214 |
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215 void |
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216 gnu_history::do_read (const std::string& f, bool must_exist) |
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217 { |
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218 if (! f.empty ()) |
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219 { |
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220 int status = ::octave_read_history (f.c_str ()); |
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221 |
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222 if (status != 0 && must_exist) |
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223 error (status); |
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224 else |
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225 { |
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226 lines_in_file = do_where (); |
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227 |
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228 ::octave_using_history (); |
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229 } |
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230 } |
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231 else |
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232 error ("gnu_history::read: missing file name"); |
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233 } |
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234 |
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235 void |
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236 gnu_history::do_read_range (const std::string& f, int from, int to, |
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237 bool must_exist) |
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238 { |
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239 if (from < 0) |
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240 from = lines_in_file; |
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241 |
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242 if (! f.empty ()) |
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243 { |
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244 int status = ::octave_read_history_range (f.c_str (), from, to); |
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245 |
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246 if (status != 0 && must_exist) |
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247 error (status); |
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248 else |
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249 { |
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250 lines_in_file = do_where (); |
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251 |
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252 ::octave_using_history (); |
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253 } |
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254 } |
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255 else |
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256 error ("gnu_history::read_range: missing file name"); |
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257 } |
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258 |
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259 void |
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260 gnu_history::do_write (const std::string& f_arg) |
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261 { |
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262 std::string f = f_arg; |
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263 |
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264 if (f.empty ()) |
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265 f = xfile; |
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266 |
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267 if (! f.empty ()) |
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268 { |
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269 int status = ::octave_write_history (f.c_str ()); |
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270 |
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271 if (status != 0) |
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272 error (status); |
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273 } |
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274 else |
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275 error ("gnu_history::write: missing file name"); |
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276 } |
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277 |
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278 void |
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279 gnu_history::do_append (const std::string& f_arg) |
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280 { |
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281 if (lines_this_session) |
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282 { |
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283 if (lines_this_session < do_where ()) |
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284 { |
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285 // Create file if it doesn't already exist. |
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286 |
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287 std::string f = f_arg; |
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288 |
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289 if (f.empty ()) |
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290 f = xfile; |
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291 |
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292 if (! f.empty ()) |
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293 { |
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294 file_stat fs (f); |
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295 |
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296 if (! fs) |
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297 { |
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298 int tem; |
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299 |
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300 tem = open (f.c_str (), O_CREAT, 0666); |
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301 close (tem); |
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302 } |
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303 |
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304 int status |
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305 = ::octave_append_history (lines_this_session, f.c_str ()); |
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306 |
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307 if (status != 0) |
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308 error (status); |
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309 else |
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310 lines_in_file += lines_this_session; |
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311 |
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312 lines_this_session = 0; |
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313 } |
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314 else |
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315 error ("gnu_history::append: missing file name"); |
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316 } |
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317 } |
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318 } |
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319 |
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320 void |
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321 gnu_history::do_truncate_file (const std::string& f_arg, int n) |
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322 { |
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323 std::string f = f_arg; |
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324 |
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325 if (f.empty ()) |
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326 f = xfile; |
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327 |
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328 if (! f.empty ()) |
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329 ::octave_history_truncate_file (f.c_str (), n); |
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330 else |
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331 error ("gnu_history::truncate_file: missing file name"); |
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332 } |
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333 |
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334 string_vector |
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335 gnu_history::do_list (int limit, bool number_lines) |
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336 { |
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337 string_vector retval; |
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338 |
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339 if (limit) |
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340 retval = ::octave_history_list (limit, number_lines); |
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341 |
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342 return retval; |
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343 } |
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344 |
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345 std::string |
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346 gnu_history::do_get_entry (int n) |
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347 { |
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348 std::string retval; |
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349 |
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350 char *line = ::octave_history_get (do_base () + n); |
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351 |
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352 if (line) |
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353 retval = line; |
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354 |
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355 return retval; |
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356 } |
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357 |
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358 void |
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359 gnu_history::do_replace_entry (int which, const std::string& line) |
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360 { |
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361 ::octave_replace_history_entry (which, line.c_str ()); |
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362 } |
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363 |
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364 void |
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365 gnu_history::do_clean_up_and_save (const std::string& f_arg, int n) |
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366 { |
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367 std::string f = f_arg; |
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368 |
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369 if (f.empty ()) |
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370 f = xfile; |
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371 |
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372 if (! f.empty ()) |
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373 { |
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374 if (n < 0) |
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375 n = xsize; |
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376 |
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377 stifle (n); |
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378 |
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379 do_write (f.c_str ()); |
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380 } |
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381 else |
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382 error ("gnu_history::clean_up_and_save: missing file name"); |
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383 } |
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384 |
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385 #endif |
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386 |
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387 bool |
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388 command_history::instance_ok (void) |
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389 { |
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390 bool retval = true; |
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391 |
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392 if (! instance) |
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393 make_command_history (); |
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394 |
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395 if (! instance) |
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396 { |
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397 (*current_liboctave_error_handler) |
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398 ("unable to create command history object!"); |
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399 |
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400 retval = false; |
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401 } |
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402 |
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403 return retval; |
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404 } |
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405 |
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406 void |
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407 command_history::make_command_history (void) |
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408 { |
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409 #if defined (USE_READLINE) |
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410 instance = new gnu_history (); |
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411 #else |
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412 instance = new command_history (); |
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413 #endif |
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414 } |
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415 |
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416 void |
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417 command_history::set_file (const std::string& f_arg) |
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418 { |
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419 if (instance_ok ()) |
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420 { |
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421 std::string f = file_ops::tilde_expand (f_arg); |
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422 |
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423 instance->do_set_file (f); |
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424 } |
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425 } |
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426 |
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427 std::string |
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428 command_history::file (void) |
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429 { |
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430 return (instance_ok ()) |
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431 ? instance->do_file () : std::string (); |
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432 } |
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433 |
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434 void |
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435 command_history::set_size (int n) |
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436 { |
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437 if (instance_ok ()) |
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438 instance->do_set_size (n); |
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439 } |
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440 |
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441 int |
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442 command_history::size (void) |
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443 { |
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444 return (instance_ok ()) |
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445 ? instance->do_size () : 0; |
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446 } |
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447 |
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448 void |
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449 command_history::ignore_entries (bool flag) |
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450 { |
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451 if (instance_ok ()) |
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452 instance->do_ignore_entries (flag); |
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453 } |
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454 |
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455 bool |
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456 command_history::ignoring_entries (void) |
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457 { |
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458 return (instance_ok ()) |
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459 ? instance->do_ignoring_entries () : false; |
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460 } |
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461 |
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462 void |
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463 command_history::add (const std::string& s) |
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464 { |
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465 if (instance_ok ()) |
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466 instance->do_add (s); |
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467 } |
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468 |
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469 void |
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470 command_history::remove (int n) |
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471 { |
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472 if (instance_ok ()) |
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473 instance->do_remove (n); |
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474 } |
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475 |
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476 int |
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477 command_history::where (void) |
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478 { |
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479 return (instance_ok ()) |
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480 ? instance->do_where () : 0; |
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481 } |
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482 |
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483 int |
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484 command_history::length (void) |
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485 { |
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486 return (instance_ok ()) |
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487 ? instance->do_length () : 0; |
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488 } |
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489 |
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490 int |
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491 command_history::max_input_history (void) |
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492 { |
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493 return (instance_ok ()) |
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494 ? instance->do_max_input_history () : 0; |
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495 } |
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496 |
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497 int |
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498 command_history::base (void) |
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499 { |
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500 return (instance_ok ()) |
|
|
501 ? instance->do_base () : 0; |
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|
502 } |
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|
503 |
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504 int |
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|
505 command_history::current_number (void) |
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506 { |
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507 return (instance_ok ()) |
|
|
508 ? instance->do_current_number () : 0; |
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|
509 } |
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510 |
|
|
511 void |
|
|
512 command_history::stifle (int n) |
|
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513 { |
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514 if (instance_ok ()) |
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|
515 instance->do_stifle (n); |
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|
516 } |
|
|
517 |
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|
518 int |
|
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519 command_history::unstifle (void) |
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|
520 { |
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|
521 return (instance_ok ()) |
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|
522 ? instance->do_unstifle () : 0; |
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|
523 } |
|
|
524 |
|
|
525 int |
|
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526 command_history::is_stifled (void) |
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527 { |
|
|
528 return (instance_ok ()) |
|
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529 ? instance->do_is_stifled () : 0; |
|
|
530 } |
|
|
531 |
|
|
532 void |
|
|
533 command_history::set_mark (int n) |
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|
534 { |
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|
535 if (instance_ok ()) |
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|
536 instance->do_set_mark (n); |
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|
537 } |
|
|
538 |
|
4802
|
539 int |
|
3519
|
540 command_history::goto_mark (void) |
|
2926
|
541 { |
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4802
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542 return (instance_ok ()) |
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543 ? instance->do_goto_mark () : 0; |
|
2926
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544 } |
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|
545 |
|
|
546 void |
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547 command_history::read (bool must_exist) |
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|
548 { |
|
3522
|
549 read (file (), must_exist); |
|
2926
|
550 } |
|
|
551 |
|
|
552 void |
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3504
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553 command_history::read (const std::string& f, bool must_exist) |
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2926
|
554 { |
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|
555 if (instance_ok ()) |
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556 instance->do_read (f, must_exist); |
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|
557 } |
|
|
558 |
|
|
559 void |
|
|
560 command_history::read_range (int from, int to, bool must_exist) |
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|
561 { |
|
3522
|
562 read_range (file (), from, to, must_exist); |
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2926
|
563 } |
|
|
564 |
|
|
565 void |
|
3504
|
566 command_history::read_range (const std::string& f, int from, int to, |
|
2926
|
567 bool must_exist) |
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|
568 { |
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|
569 if (instance_ok ()) |
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|
570 instance->do_read_range (f, from, to, must_exist); |
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|
571 } |
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|
572 |
|
|
573 void |
|
3504
|
574 command_history::write (const std::string& f) |
|
2926
|
575 { |
|
|
576 if (instance_ok ()) |
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|
577 instance->do_write (f); |
|
|
578 } |
|
|
579 |
|
|
580 void |
|
3504
|
581 command_history::append (const std::string& f) |
|
2926
|
582 { |
|
|
583 if (instance_ok ()) |
|
|
584 instance->do_append (f); |
|
|
585 } |
|
|
586 |
|
|
587 void |
|
3504
|
588 command_history::truncate_file (const std::string& f, int n) |
|
2926
|
589 { |
|
|
590 if (instance_ok ()) |
|
|
591 instance->do_truncate_file (f, n); |
|
|
592 } |
|
|
593 |
|
|
594 string_vector |
|
|
595 command_history::list (int limit, bool number_lines) |
|
|
596 { |
|
|
597 return (instance_ok ()) |
|
|
598 ? instance->do_list (limit, number_lines) : string_vector (); |
|
|
599 } |
|
|
600 |
|
3504
|
601 std::string |
|
2926
|
602 command_history::get_entry (int n) |
|
|
603 { |
|
|
604 return (instance_ok ()) |
|
3504
|
605 ? instance->do_get_entry (n) : std::string (); |
|
2926
|
606 } |
|
|
607 |
|
|
608 void |
|
3504
|
609 command_history::replace_entry (int which, const std::string& line) |
|
2926
|
610 { |
|
|
611 if (instance_ok ()) |
|
|
612 instance->do_replace_entry (which, line); |
|
|
613 } |
|
|
614 |
|
|
615 void |
|
3504
|
616 command_history::clean_up_and_save (const std::string& f, int n) |
|
2926
|
617 { |
|
|
618 if (instance_ok ()) |
|
|
619 instance->do_clean_up_and_save (f, n); |
|
|
620 } |
|
|
621 |
|
|
622 void |
|
3504
|
623 command_history::do_set_file (const std::string& f) |
|
2926
|
624 { |
|
|
625 xfile = f; |
|
|
626 } |
|
|
627 |
|
3504
|
628 std::string |
|
2926
|
629 command_history::do_file (void) |
|
|
630 { |
|
|
631 return xfile; |
|
|
632 } |
|
|
633 |
|
|
634 void |
|
|
635 command_history::do_set_size (int n) |
|
|
636 { |
|
|
637 xsize = n; |
|
|
638 } |
|
|
639 |
|
|
640 int |
|
|
641 command_history::do_size (void) |
|
|
642 { |
|
|
643 return xsize; |
|
|
644 } |
|
|
645 |
|
|
646 void |
|
|
647 command_history::do_ignore_entries (bool flag) |
|
|
648 { |
|
|
649 ignoring_additions = flag; |
|
|
650 } |
|
|
651 |
|
|
652 bool |
|
|
653 command_history::do_ignoring_entries (void) |
|
|
654 { |
|
|
655 return ignoring_additions; |
|
|
656 } |
|
|
657 |
|
|
658 void |
|
3504
|
659 command_history::do_add (const std::string&) |
|
2926
|
660 { |
|
|
661 } |
|
|
662 |
|
|
663 void |
|
|
664 command_history::do_remove (int) |
|
|
665 { |
|
|
666 } |
|
|
667 |
|
|
668 int |
|
|
669 command_history::do_where (void) |
|
|
670 { |
|
|
671 return 0; |
|
|
672 } |
|
|
673 |
|
|
674 int |
|
|
675 command_history::do_length (void) |
|
|
676 { |
|
|
677 return 0; |
|
|
678 } |
|
|
679 |
|
|
680 int |
|
|
681 command_history::do_max_input_history (void) |
|
|
682 { |
|
|
683 return 0; |
|
|
684 } |
|
|
685 |
|
|
686 int |
|
|
687 command_history::do_base (void) |
|
|
688 { |
|
|
689 return 0; |
|
|
690 } |
|
|
691 |
|
|
692 int |
|
|
693 command_history::do_current_number (void) |
|
|
694 { |
|
|
695 return (xsize > 0) ? do_base () + do_where () : -1; |
|
|
696 } |
|
|
697 |
|
|
698 void |
|
|
699 command_history::do_stifle (int) |
|
|
700 { |
|
|
701 } |
|
|
702 |
|
|
703 int |
|
|
704 command_history::do_unstifle (void) |
|
|
705 { |
|
|
706 return -1; |
|
|
707 } |
|
|
708 |
|
|
709 int |
|
|
710 command_history::do_is_stifled (void) |
|
|
711 { |
|
|
712 return 0; |
|
|
713 } |
|
|
714 |
|
|
715 void |
|
|
716 command_history::do_set_mark (int) |
|
|
717 { |
|
|
718 } |
|
|
719 |
|
4802
|
720 int |
|
2926
|
721 command_history::do_goto_mark (void) |
|
|
722 { |
|
4802
|
723 return 0; |
|
2926
|
724 } |
|
|
725 |
|
|
726 void |
|
3504
|
727 command_history::do_read (const std::string& f, bool) |
|
2926
|
728 { |
|
|
729 if (f.empty ()) |
|
|
730 error ("command_history::read: missing file name"); |
|
|
731 } |
|
|
732 |
|
|
733 void |
|
3504
|
734 command_history::do_read_range (const std::string& f, int, int, bool) |
|
2926
|
735 { |
|
|
736 if (f.empty ()) |
|
|
737 error ("command_history::read_range: missing file name"); |
|
|
738 } |
|
|
739 |
|
|
740 void |
|
3504
|
741 command_history::do_write (const std::string& f_arg) |
|
2926
|
742 { |
|
3504
|
743 std::string f = f_arg; |
|
2926
|
744 |
|
|
745 if (f.empty ()) |
|
|
746 f = xfile; |
|
|
747 |
|
|
748 if (f.empty ()) |
|
|
749 error ("command_history::write: missing file name"); |
|
|
750 } |
|
|
751 |
|
|
752 void |
|
3504
|
753 command_history::do_append (const std::string& f_arg) |
|
2926
|
754 { |
|
|
755 if (lines_this_session) |
|
|
756 { |
|
|
757 if (lines_this_session < do_where ()) |
|
|
758 { |
|
|
759 // Create file if it doesn't already exist. |
|
|
760 |
|
3504
|
761 std::string f = f_arg; |
|
2926
|
762 |
|
|
763 if (f.empty ()) |
|
|
764 f = xfile; |
|
|
765 |
|
|
766 if (f.empty ()) |
|
|
767 error ("command_history::append: missing file name"); |
|
|
768 } |
|
|
769 } |
|
|
770 } |
|
|
771 |
|
|
772 void |
|
3504
|
773 command_history::do_truncate_file (const std::string& f_arg, int) |
|
2926
|
774 { |
|
3504
|
775 std::string f = f_arg; |
|
2926
|
776 |
|
|
777 if (f.empty ()) |
|
|
778 f = xfile; |
|
|
779 |
|
|
780 if (f.empty ()) |
|
|
781 error ("command_history::truncate_file: missing file name"); |
|
|
782 } |
|
|
783 |
|
|
784 string_vector |
|
|
785 command_history::do_list (int, bool) |
|
|
786 { |
|
|
787 return string_vector (); |
|
|
788 } |
|
|
789 |
|
3504
|
790 std::string |
|
2926
|
791 command_history::do_get_entry (int) |
|
|
792 { |
|
3504
|
793 return std::string (); |
|
2926
|
794 } |
|
|
795 |
|
|
796 void |
|
3504
|
797 command_history::do_replace_entry (int, const std::string&) |
|
2926
|
798 { |
|
|
799 } |
|
|
800 |
|
|
801 void |
|
3504
|
802 command_history::do_clean_up_and_save (const std::string& f_arg, int) |
|
2926
|
803 { |
|
3504
|
804 std::string f = f_arg; |
|
2926
|
805 |
|
|
806 if (f.empty ()) |
|
|
807 f = xfile; |
|
|
808 |
|
|
809 if (f.empty ()) |
|
1797
|
810 error ("command_history::clean_up_and_save: missing file name"); |
|
|
811 } |
|
|
812 |
|
|
813 void |
|
2470
|
814 command_history::error (int err_num) |
|
1797
|
815 { |
|
2470
|
816 (*current_liboctave_error_handler) ("%s", strerror (err_num)); |
|
1797
|
817 } |
|
|
818 |
|
|
819 void |
|
3504
|
820 command_history::error (const std::string& s) |
|
1797
|
821 { |
|
|
822 (*current_liboctave_error_handler) ("%s", s.c_str ()); |
|
|
823 } |
|
|
824 |
|
|
825 /* |
|
|
826 ;;; Local Variables: *** |
|
|
827 ;;; mode: C++ *** |
|
|
828 ;;; End: *** |
|
|
829 */ |
