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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cstring> |
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28 |
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29 #include <iostream> |
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30 #include <string> |
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31 |
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32 #include "cmd-edit.h" |
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33 #include "cmd-hist.h" |
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34 #include "lo-error.h" |
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35 #include "str-vec.h" |
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36 |
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37 command_history *command_history::instance = 0; |
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38 |
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39 #if defined (USE_READLINE) |
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40 |
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41 #include <cstdlib> |
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42 |
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43 #ifdef HAVE_FCNTL_H |
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44 #include <fcntl.h> |
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45 #endif |
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46 |
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47 #ifdef HAVE_UNISTD_H |
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48 #ifdef HAVE_SYS_TYPES_H |
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49 #include <sys/types.h> |
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50 #endif |
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51 #include <unistd.h> |
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52 #endif |
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53 |
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54 #include "oct-rl-hist.h" |
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55 |
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56 #include "file-stat.h" |
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57 |
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58 class |
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59 gnu_history : public command_history |
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60 { |
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61 public: |
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62 |
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63 gnu_history (void) |
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64 : command_history (), mark (0) { } |
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65 |
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66 ~gnu_history (void) { } |
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67 |
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68 void do_add (const std::string&); |
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69 |
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70 void do_remove (int); |
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71 |
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72 int do_where (void); |
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73 |
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74 int do_length (void); |
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75 |
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76 int do_max_input_history (void); |
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77 |
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78 int do_base (void); |
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79 |
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80 int do_current_number (void); |
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81 |
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82 void do_stifle (int); |
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83 |
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84 int do_unstifle (void); |
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85 |
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86 int do_is_stifled (void); |
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87 |
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88 void do_set_mark (int); |
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89 |
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90 int do_goto_mark (void); |
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91 |
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92 void do_read (const std::string&, bool); |
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93 |
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94 void do_read_range (const std::string&, int, int, bool); |
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95 |
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96 void do_write (const std::string&); |
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97 |
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98 void do_append (const std::string&); |
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99 |
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100 void do_truncate_file (const std::string&, int); |
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101 |
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102 string_vector do_list (int, bool); |
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103 |
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104 std::string do_get_entry (int); |
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105 |
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106 void do_replace_entry (int, const std::string&); |
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107 |
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108 void do_clean_up_and_save (const std::string&, int); |
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109 |
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110 private: |
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111 |
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112 int mark; |
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113 }; |
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114 |
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115 void |
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116 gnu_history::do_add (const std::string& s) |
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117 { |
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118 if (! do_ignoring_entries ()) |
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119 { |
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120 if (s.empty () |
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121 || (s.length () == 1 && (s[0] == '\r' || s[0] == '\n'))) |
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122 return; |
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123 |
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124 ::octave_add_history (s.c_str ()); |
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125 |
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126 lines_this_session++; |
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127 } |
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128 } |
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129 |
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130 void |
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131 gnu_history::do_remove (int n) |
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132 { |
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133 ::octave_remove_history (n); |
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134 } |
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135 |
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136 int |
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137 gnu_history::do_where (void) |
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138 { |
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139 return ::octave_where_history (); |
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140 } |
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141 |
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142 int |
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143 gnu_history::do_length (void) |
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144 { |
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145 return ::octave_history_length (); |
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146 } |
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147 |
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148 int |
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149 gnu_history::do_max_input_history (void) |
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150 { |
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151 return ::octave_max_input_history (); |
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152 } |
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153 |
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154 int |
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155 gnu_history::do_base (void) |
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156 { |
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157 return ::octave_history_base (); |
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158 } |
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159 |
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160 int |
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161 gnu_history::do_current_number (void) |
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162 { |
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163 return (xsize > 0) ? do_base () + do_where () : -1; |
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164 } |
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165 |
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166 void |
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167 gnu_history::do_stifle (int n) |
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168 { |
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169 ::octave_stifle_history (n); |
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170 } |
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171 |
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172 int |
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173 gnu_history::do_unstifle (void) |
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174 { |
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175 return ::octave_unstifle_history (); |
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176 } |
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177 |
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178 int |
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179 gnu_history::do_is_stifled (void) |
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180 { |
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181 return ::octave_history_is_stifled (); |
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182 } |
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183 |
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184 void |
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185 gnu_history::do_set_mark (int n) |
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186 { |
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187 mark = n; |
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188 } |
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189 |
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190 int |
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191 gnu_history::do_goto_mark (void) |
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192 { |
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193 if (mark) |
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194 { |
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195 char *line = ::octave_history_goto_mark (mark); |
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196 |
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197 if (line) |
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198 { |
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199 command_editor::insert_text (line); |
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200 |
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201 command_editor::clear_undo_list (); |
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202 } |
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203 } |
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204 |
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205 mark = 0; |
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206 |
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207 // XXX FIXME XXX -- for operate_and_get_next. |
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208 command_editor::restore_startup_hook (); |
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209 |
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210 return 0; |
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211 } |
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212 |
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213 void |
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214 gnu_history::do_read (const std::string& f, bool must_exist) |
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215 { |
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216 if (! f.empty ()) |
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217 { |
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218 int status = ::octave_read_history (f.c_str ()); |
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219 |
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220 if (status != 0 && must_exist) |
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221 error (status); |
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222 else |
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223 { |
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224 lines_in_file = do_where (); |
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225 |
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226 ::octave_using_history (); |
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227 } |
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228 } |
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229 else |
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230 error ("gnu_history::read: missing file name"); |
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231 } |
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232 |
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233 void |
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234 gnu_history::do_read_range (const std::string& f, int from, int to, |
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235 bool must_exist) |
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236 { |
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237 if (from < 0) |
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238 from = lines_in_file; |
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239 |
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240 if (! f.empty ()) |
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241 { |
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242 int status = ::octave_read_history_range (f.c_str (), from, to); |
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243 |
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244 if (status != 0 && must_exist) |
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245 error (status); |
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246 else |
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247 { |
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248 lines_in_file = do_where (); |
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249 |
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250 ::octave_using_history (); |
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251 } |
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252 } |
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253 else |
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254 error ("gnu_history::read_range: missing file name"); |
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255 } |
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256 |
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257 void |
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258 gnu_history::do_write (const std::string& f_arg) |
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259 { |
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260 std::string f = f_arg; |
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261 |
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262 if (f.empty ()) |
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263 f = xfile; |
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264 |
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265 if (! f.empty ()) |
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266 { |
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267 int status = ::octave_write_history (f.c_str ()); |
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268 |
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269 if (status != 0) |
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270 error (status); |
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271 } |
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272 else |
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273 error ("gnu_history::write: missing file name"); |
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274 } |
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275 |
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276 void |
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277 gnu_history::do_append (const std::string& f_arg) |
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278 { |
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279 if (lines_this_session) |
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280 { |
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281 if (lines_this_session < do_where ()) |
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282 { |
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283 // Create file if it doesn't already exist. |
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284 |
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285 std::string f = f_arg; |
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286 |
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287 if (f.empty ()) |
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288 f = xfile; |
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289 |
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290 if (! f.empty ()) |
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291 { |
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292 file_stat fs (f); |
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293 |
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294 if (! fs) |
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295 { |
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296 int tem; |
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297 |
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298 tem = open (f.c_str (), O_CREAT, 0666); |
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299 close (tem); |
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300 } |
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301 |
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302 int status |
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303 = ::octave_append_history (lines_this_session, f.c_str ()); |
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304 |
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305 if (status != 0) |
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306 error (status); |
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307 else |
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308 lines_in_file += lines_this_session; |
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309 |
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310 lines_this_session = 0; |
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311 } |
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312 else |
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313 error ("gnu_history::append: missing file name"); |
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314 } |
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315 } |
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316 } |
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317 |
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318 void |
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319 gnu_history::do_truncate_file (const std::string& f_arg, int n) |
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320 { |
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321 std::string f = f_arg; |
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322 |
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323 if (f.empty ()) |
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324 f = xfile; |
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325 |
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326 if (! f.empty ()) |
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327 ::octave_history_truncate_file (f.c_str (), n); |
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328 else |
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329 error ("gnu_history::truncate_file: missing file name"); |
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330 } |
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331 |
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332 string_vector |
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333 gnu_history::do_list (int limit, bool number_lines) |
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334 { |
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335 string_vector retval; |
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336 |
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337 if (limit) |
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338 retval = ::octave_history_list (limit, number_lines); |
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339 |
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340 return retval; |
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341 } |
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342 |
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343 std::string |
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344 gnu_history::do_get_entry (int n) |
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345 { |
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346 std::string retval; |
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347 |
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348 char *line = ::octave_history_get (do_base () + n); |
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349 |
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350 if (line) |
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351 retval = line; |
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352 |
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353 return retval; |
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354 } |
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355 |
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356 void |
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357 gnu_history::do_replace_entry (int which, const std::string& line) |
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358 { |
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359 ::octave_replace_history_entry (which, line.c_str ()); |
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360 } |
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361 |
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362 void |
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363 gnu_history::do_clean_up_and_save (const std::string& f_arg, int n) |
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364 { |
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365 std::string f = f_arg; |
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366 |
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367 if (f.empty ()) |
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368 f = xfile; |
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369 |
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370 if (! f.empty ()) |
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371 { |
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372 if (n < 0) |
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373 n = xsize; |
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374 |
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375 stifle (n); |
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376 |
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377 do_write (f.c_str ()); |
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378 } |
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379 else |
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380 error ("gnu_history::clean_up_and_save: missing file name"); |
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381 } |
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382 |
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383 #endif |
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384 |
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385 bool |
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386 command_history::instance_ok (void) |
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387 { |
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388 bool retval = true; |
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389 |
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390 if (! instance) |
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391 make_command_history (); |
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392 |
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393 if (! instance) |
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394 { |
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395 (*current_liboctave_error_handler) |
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396 ("unable to create command history object!"); |
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397 |
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398 retval = false; |
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399 } |
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400 |
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401 return retval; |
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402 } |
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403 |
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404 void |
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405 command_history::make_command_history (void) |
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406 { |
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407 #if defined (USE_READLINE) |
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408 instance = new gnu_history (); |
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409 #else |
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410 instance = new command_history (); |
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411 #endif |
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412 } |
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413 |
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414 void |
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415 command_history::set_file (const std::string& f) |
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416 { |
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417 if (instance_ok ()) |
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418 instance->do_set_file (f); |
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419 } |
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420 |
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421 std::string |
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422 command_history::file (void) |
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423 { |
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424 return (instance_ok ()) |
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425 ? instance->do_file () : std::string (); |
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426 } |
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427 |
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428 void |
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429 command_history::set_size (int n) |
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430 { |
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431 if (instance_ok ()) |
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432 instance->do_set_size (n); |
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433 } |
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434 |
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435 int |
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436 command_history::size (void) |
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437 { |
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438 return (instance_ok ()) |
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439 ? instance->do_size () : 0; |
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440 } |
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441 |
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442 void |
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443 command_history::ignore_entries (bool flag) |
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444 { |
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445 if (instance_ok ()) |
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446 instance->do_ignore_entries (flag); |
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447 } |
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448 |
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449 bool |
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450 command_history::ignoring_entries (void) |
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451 { |
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452 return (instance_ok ()) |
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453 ? instance->do_ignoring_entries () : false; |
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454 } |
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455 |
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456 void |
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457 command_history::add (const std::string& s) |
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458 { |
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459 if (instance_ok ()) |
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460 instance->do_add (s); |
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461 } |
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462 |
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463 void |
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464 command_history::remove (int n) |
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465 { |
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466 if (instance_ok ()) |
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467 instance->do_remove (n); |
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468 } |
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469 |
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470 int |
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471 command_history::where (void) |
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472 { |
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473 return (instance_ok ()) |
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474 ? instance->do_where () : 0; |
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475 } |
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476 |
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477 int |
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478 command_history::length (void) |
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479 { |
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480 return (instance_ok ()) |
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481 ? instance->do_length () : 0; |
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482 } |
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483 |
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484 int |
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485 command_history::max_input_history (void) |
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486 { |
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487 return (instance_ok ()) |
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488 ? instance->do_max_input_history () : 0; |
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489 } |
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490 |
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491 int |
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492 command_history::base (void) |
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493 { |
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494 return (instance_ok ()) |
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495 ? instance->do_base () : 0; |
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496 } |
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497 |
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498 int |
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499 command_history::current_number (void) |
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500 { |
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501 return (instance_ok ()) |
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502 ? instance->do_current_number () : 0; |
|
|
503 } |
|
|
504 |
|
|
505 void |
|
|
506 command_history::stifle (int n) |
|
|
507 { |
|
|
508 if (instance_ok ()) |
|
|
509 instance->do_stifle (n); |
|
|
510 } |
|
|
511 |
|
|
512 int |
|
|
513 command_history::unstifle (void) |
|
|
514 { |
|
|
515 return (instance_ok ()) |
|
|
516 ? instance->do_unstifle () : 0; |
|
|
517 } |
|
|
518 |
|
|
519 int |
|
|
520 command_history::is_stifled (void) |
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|
521 { |
|
|
522 return (instance_ok ()) |
|
|
523 ? instance->do_is_stifled () : 0; |
|
|
524 } |
|
|
525 |
|
|
526 void |
|
|
527 command_history::set_mark (int n) |
|
|
528 { |
|
|
529 if (instance_ok ()) |
|
|
530 instance->do_set_mark (n); |
|
|
531 } |
|
|
532 |
|
4802
|
533 int |
|
3519
|
534 command_history::goto_mark (void) |
|
2926
|
535 { |
|
4802
|
536 return (instance_ok ()) |
|
|
537 ? instance->do_goto_mark () : 0; |
|
2926
|
538 } |
|
|
539 |
|
|
540 void |
|
|
541 command_history::read (bool must_exist) |
|
|
542 { |
|
3522
|
543 read (file (), must_exist); |
|
2926
|
544 } |
|
|
545 |
|
|
546 void |
|
3504
|
547 command_history::read (const std::string& f, bool must_exist) |
|
2926
|
548 { |
|
|
549 if (instance_ok ()) |
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|
550 instance->do_read (f, must_exist); |
|
|
551 } |
|
|
552 |
|
|
553 void |
|
|
554 command_history::read_range (int from, int to, bool must_exist) |
|
|
555 { |
|
3522
|
556 read_range (file (), from, to, must_exist); |
|
2926
|
557 } |
|
|
558 |
|
|
559 void |
|
3504
|
560 command_history::read_range (const std::string& f, int from, int to, |
|
2926
|
561 bool must_exist) |
|
|
562 { |
|
|
563 if (instance_ok ()) |
|
|
564 instance->do_read_range (f, from, to, must_exist); |
|
|
565 } |
|
|
566 |
|
|
567 void |
|
3504
|
568 command_history::write (const std::string& f) |
|
2926
|
569 { |
|
|
570 if (instance_ok ()) |
|
|
571 instance->do_write (f); |
|
|
572 } |
|
|
573 |
|
|
574 void |
|
3504
|
575 command_history::append (const std::string& f) |
|
2926
|
576 { |
|
|
577 if (instance_ok ()) |
|
|
578 instance->do_append (f); |
|
|
579 } |
|
|
580 |
|
|
581 void |
|
3504
|
582 command_history::truncate_file (const std::string& f, int n) |
|
2926
|
583 { |
|
|
584 if (instance_ok ()) |
|
|
585 instance->do_truncate_file (f, n); |
|
|
586 } |
|
|
587 |
|
|
588 string_vector |
|
|
589 command_history::list (int limit, bool number_lines) |
|
|
590 { |
|
|
591 return (instance_ok ()) |
|
|
592 ? instance->do_list (limit, number_lines) : string_vector (); |
|
|
593 } |
|
|
594 |
|
3504
|
595 std::string |
|
2926
|
596 command_history::get_entry (int n) |
|
|
597 { |
|
|
598 return (instance_ok ()) |
|
3504
|
599 ? instance->do_get_entry (n) : std::string (); |
|
2926
|
600 } |
|
|
601 |
|
|
602 void |
|
3504
|
603 command_history::replace_entry (int which, const std::string& line) |
|
2926
|
604 { |
|
|
605 if (instance_ok ()) |
|
|
606 instance->do_replace_entry (which, line); |
|
|
607 } |
|
|
608 |
|
|
609 void |
|
3504
|
610 command_history::clean_up_and_save (const std::string& f, int n) |
|
2926
|
611 { |
|
|
612 if (instance_ok ()) |
|
|
613 instance->do_clean_up_and_save (f, n); |
|
|
614 } |
|
|
615 |
|
|
616 void |
|
3504
|
617 command_history::do_set_file (const std::string& f) |
|
2926
|
618 { |
|
|
619 xfile = f; |
|
|
620 } |
|
|
621 |
|
3504
|
622 std::string |
|
2926
|
623 command_history::do_file (void) |
|
|
624 { |
|
|
625 return xfile; |
|
|
626 } |
|
|
627 |
|
|
628 void |
|
|
629 command_history::do_set_size (int n) |
|
|
630 { |
|
|
631 xsize = n; |
|
|
632 } |
|
|
633 |
|
|
634 int |
|
|
635 command_history::do_size (void) |
|
|
636 { |
|
|
637 return xsize; |
|
|
638 } |
|
|
639 |
|
|
640 void |
|
|
641 command_history::do_ignore_entries (bool flag) |
|
|
642 { |
|
|
643 ignoring_additions = flag; |
|
|
644 } |
|
|
645 |
|
|
646 bool |
|
|
647 command_history::do_ignoring_entries (void) |
|
|
648 { |
|
|
649 return ignoring_additions; |
|
|
650 } |
|
|
651 |
|
|
652 void |
|
3504
|
653 command_history::do_add (const std::string&) |
|
2926
|
654 { |
|
|
655 } |
|
|
656 |
|
|
657 void |
|
|
658 command_history::do_remove (int) |
|
|
659 { |
|
|
660 } |
|
|
661 |
|
|
662 int |
|
|
663 command_history::do_where (void) |
|
|
664 { |
|
|
665 return 0; |
|
|
666 } |
|
|
667 |
|
|
668 int |
|
|
669 command_history::do_length (void) |
|
|
670 { |
|
|
671 return 0; |
|
|
672 } |
|
|
673 |
|
|
674 int |
|
|
675 command_history::do_max_input_history (void) |
|
|
676 { |
|
|
677 return 0; |
|
|
678 } |
|
|
679 |
|
|
680 int |
|
|
681 command_history::do_base (void) |
|
|
682 { |
|
|
683 return 0; |
|
|
684 } |
|
|
685 |
|
|
686 int |
|
|
687 command_history::do_current_number (void) |
|
|
688 { |
|
|
689 return (xsize > 0) ? do_base () + do_where () : -1; |
|
|
690 } |
|
|
691 |
|
|
692 void |
|
|
693 command_history::do_stifle (int) |
|
|
694 { |
|
|
695 } |
|
|
696 |
|
|
697 int |
|
|
698 command_history::do_unstifle (void) |
|
|
699 { |
|
|
700 return -1; |
|
|
701 } |
|
|
702 |
|
|
703 int |
|
|
704 command_history::do_is_stifled (void) |
|
|
705 { |
|
|
706 return 0; |
|
|
707 } |
|
|
708 |
|
|
709 void |
|
|
710 command_history::do_set_mark (int) |
|
|
711 { |
|
|
712 } |
|
|
713 |
|
4802
|
714 int |
|
2926
|
715 command_history::do_goto_mark (void) |
|
|
716 { |
|
4802
|
717 return 0; |
|
2926
|
718 } |
|
|
719 |
|
|
720 void |
|
3504
|
721 command_history::do_read (const std::string& f, bool) |
|
2926
|
722 { |
|
|
723 if (f.empty ()) |
|
|
724 error ("command_history::read: missing file name"); |
|
|
725 } |
|
|
726 |
|
|
727 void |
|
3504
|
728 command_history::do_read_range (const std::string& f, int, int, bool) |
|
2926
|
729 { |
|
|
730 if (f.empty ()) |
|
|
731 error ("command_history::read_range: missing file name"); |
|
|
732 } |
|
|
733 |
|
|
734 void |
|
3504
|
735 command_history::do_write (const std::string& f_arg) |
|
2926
|
736 { |
|
3504
|
737 std::string f = f_arg; |
|
2926
|
738 |
|
|
739 if (f.empty ()) |
|
|
740 f = xfile; |
|
|
741 |
|
|
742 if (f.empty ()) |
|
|
743 error ("command_history::write: missing file name"); |
|
|
744 } |
|
|
745 |
|
|
746 void |
|
3504
|
747 command_history::do_append (const std::string& f_arg) |
|
2926
|
748 { |
|
|
749 if (lines_this_session) |
|
|
750 { |
|
|
751 if (lines_this_session < do_where ()) |
|
|
752 { |
|
|
753 // Create file if it doesn't already exist. |
|
|
754 |
|
3504
|
755 std::string f = f_arg; |
|
2926
|
756 |
|
|
757 if (f.empty ()) |
|
|
758 f = xfile; |
|
|
759 |
|
|
760 if (f.empty ()) |
|
|
761 error ("command_history::append: missing file name"); |
|
|
762 } |
|
|
763 } |
|
|
764 } |
|
|
765 |
|
|
766 void |
|
3504
|
767 command_history::do_truncate_file (const std::string& f_arg, int) |
|
2926
|
768 { |
|
3504
|
769 std::string f = f_arg; |
|
2926
|
770 |
|
|
771 if (f.empty ()) |
|
|
772 f = xfile; |
|
|
773 |
|
|
774 if (f.empty ()) |
|
|
775 error ("command_history::truncate_file: missing file name"); |
|
|
776 } |
|
|
777 |
|
|
778 string_vector |
|
|
779 command_history::do_list (int, bool) |
|
|
780 { |
|
|
781 return string_vector (); |
|
|
782 } |
|
|
783 |
|
3504
|
784 std::string |
|
2926
|
785 command_history::do_get_entry (int) |
|
|
786 { |
|
3504
|
787 return std::string (); |
|
2926
|
788 } |
|
|
789 |
|
|
790 void |
|
3504
|
791 command_history::do_replace_entry (int, const std::string&) |
|
2926
|
792 { |
|
|
793 } |
|
|
794 |
|
|
795 void |
|
3504
|
796 command_history::do_clean_up_and_save (const std::string& f_arg, int) |
|
2926
|
797 { |
|
3504
|
798 std::string f = f_arg; |
|
2926
|
799 |
|
|
800 if (f.empty ()) |
|
|
801 f = xfile; |
|
|
802 |
|
|
803 if (f.empty ()) |
|
1797
|
804 error ("command_history::clean_up_and_save: missing file name"); |
|
|
805 } |
|
|
806 |
|
|
807 void |
|
2470
|
808 command_history::error (int err_num) |
|
1797
|
809 { |
|
2470
|
810 (*current_liboctave_error_handler) ("%s", strerror (err_num)); |
|
1797
|
811 } |
|
|
812 |
|
|
813 void |
|
3504
|
814 command_history::error (const std::string& s) |
|
1797
|
815 { |
|
|
816 (*current_liboctave_error_handler) ("%s", s.c_str ()); |
|
|
817 } |
|
|
818 |
|
|
819 /* |
|
|
820 ;;; Local Variables: *** |
|
|
821 ;;; mode: C++ *** |
|
|
822 ;;; End: *** |
|
|
823 */ |
