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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 void 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 void |
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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 |
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211 void |
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212 gnu_history::do_read (const std::string& f, bool must_exist) |
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213 { |
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214 if (! f.empty ()) |
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215 { |
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216 int status = ::octave_read_history (f.c_str ()); |
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217 |
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218 if (status != 0 && must_exist) |
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219 error (status); |
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220 else |
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221 { |
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222 lines_in_file = do_where (); |
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223 |
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224 ::octave_using_history (); |
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225 } |
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226 } |
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227 else |
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228 error ("gnu_history::read: missing file name"); |
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229 } |
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230 |
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231 void |
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232 gnu_history::do_read_range (const std::string& f, int from, int to, |
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233 bool must_exist) |
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234 { |
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235 if (from < 0) |
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236 from = lines_in_file; |
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237 |
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238 if (! f.empty ()) |
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239 { |
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240 int status = ::octave_read_history_range (f.c_str (), from, to); |
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241 |
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242 if (status != 0 && must_exist) |
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243 error (status); |
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244 else |
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245 { |
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246 lines_in_file = do_where (); |
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247 |
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248 ::octave_using_history (); |
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249 } |
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250 } |
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251 else |
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252 error ("gnu_history::read_range: missing file name"); |
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253 } |
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254 |
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255 void |
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256 gnu_history::do_write (const std::string& f_arg) |
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257 { |
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258 std::string f = f_arg; |
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259 |
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260 if (f.empty ()) |
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261 f = xfile; |
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262 |
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263 if (! f.empty ()) |
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264 { |
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265 int status = ::octave_write_history (f.c_str ()); |
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266 |
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267 if (status != 0) |
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268 error (status); |
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269 } |
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270 else |
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271 error ("gnu_history::write: missing file name"); |
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272 } |
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273 |
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274 void |
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275 gnu_history::do_append (const std::string& f_arg) |
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276 { |
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277 if (lines_this_session) |
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278 { |
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279 if (lines_this_session < do_where ()) |
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280 { |
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281 // Create file if it doesn't already exist. |
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282 |
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283 std::string f = f_arg; |
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284 |
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285 if (f.empty ()) |
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286 f = xfile; |
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287 |
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288 if (! f.empty ()) |
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289 { |
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290 file_stat fs (f); |
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291 |
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292 if (! fs) |
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293 { |
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294 int tem; |
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295 |
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296 tem = open (f.c_str (), O_CREAT, 0666); |
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297 close (tem); |
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298 } |
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299 |
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300 int status |
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301 = ::octave_append_history (lines_this_session, f.c_str ()); |
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302 |
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303 if (status != 0) |
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304 error (status); |
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305 else |
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306 lines_in_file += lines_this_session; |
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307 |
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308 lines_this_session = 0; |
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309 } |
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310 else |
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311 error ("gnu_history::append: missing file name"); |
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312 } |
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313 } |
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314 } |
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315 |
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316 void |
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317 gnu_history::do_truncate_file (const std::string& f_arg, int n) |
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318 { |
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319 std::string f = f_arg; |
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320 |
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321 if (f.empty ()) |
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322 f = xfile; |
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323 |
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324 if (! f.empty ()) |
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325 ::octave_history_truncate_file (f.c_str (), n); |
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326 else |
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327 error ("gnu_history::truncate_file: missing file name"); |
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328 } |
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329 |
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330 string_vector |
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331 gnu_history::do_list (int limit, bool number_lines) |
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332 { |
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333 string_vector retval; |
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334 |
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335 if (limit) |
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336 retval = ::octave_history_list (limit, number_lines); |
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337 |
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338 return retval; |
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339 } |
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340 |
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341 std::string |
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342 gnu_history::do_get_entry (int n) |
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343 { |
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344 std::string retval; |
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345 |
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346 char *line = ::octave_history_get (do_base () + n); |
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347 |
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348 if (line) |
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349 retval = line; |
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350 |
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351 return retval; |
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352 } |
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353 |
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354 void |
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355 gnu_history::do_replace_entry (int which, const std::string& line) |
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356 { |
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357 ::octave_replace_history_entry (which, line.c_str ()); |
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358 } |
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359 |
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360 void |
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361 gnu_history::do_clean_up_and_save (const std::string& f_arg, int n) |
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362 { |
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363 std::string f = f_arg; |
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364 |
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365 if (f.empty ()) |
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366 f = xfile; |
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367 |
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368 if (! f.empty ()) |
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369 { |
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370 if (n < 0) |
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371 n = xsize; |
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372 |
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373 stifle (n); |
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374 |
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375 do_write (f.c_str ()); |
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376 } |
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377 else |
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378 error ("gnu_history::clean_up_and_save: missing file name"); |
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379 } |
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380 |
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381 #endif |
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382 |
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383 bool |
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384 command_history::instance_ok (void) |
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385 { |
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386 bool retval = true; |
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387 |
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388 if (! instance) |
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389 make_command_history (); |
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390 |
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391 if (! instance) |
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392 { |
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393 (*current_liboctave_error_handler) |
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394 ("unable to create command history object!"); |
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395 |
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396 retval = false; |
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397 } |
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398 |
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399 return retval; |
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400 } |
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401 |
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402 void |
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403 command_history::make_command_history (void) |
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404 { |
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405 #if defined (USE_READLINE) |
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406 instance = new gnu_history (); |
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407 #else |
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408 instance = new command_history (); |
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409 #endif |
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410 } |
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411 |
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412 void |
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413 command_history::set_file (const std::string& f) |
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414 { |
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415 if (instance_ok ()) |
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416 instance->do_set_file (f); |
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417 } |
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418 |
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419 std::string |
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420 command_history::file (void) |
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421 { |
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422 return (instance_ok ()) |
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423 ? instance->do_file () : std::string (); |
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424 } |
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425 |
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426 void |
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427 command_history::set_size (int n) |
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428 { |
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429 if (instance_ok ()) |
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430 instance->do_set_size (n); |
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431 } |
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432 |
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433 int |
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434 command_history::size (void) |
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435 { |
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436 return (instance_ok ()) |
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437 ? instance->do_size () : 0; |
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438 } |
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439 |
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440 void |
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441 command_history::ignore_entries (bool flag) |
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442 { |
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443 if (instance_ok ()) |
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444 instance->do_ignore_entries (flag); |
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445 } |
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446 |
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447 bool |
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448 command_history::ignoring_entries (void) |
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449 { |
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450 return (instance_ok ()) |
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451 ? instance->do_ignoring_entries () : false; |
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452 } |
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453 |
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454 void |
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455 command_history::add (const std::string& s) |
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456 { |
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457 if (instance_ok ()) |
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458 instance->do_add (s); |
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459 } |
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460 |
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461 void |
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462 command_history::remove (int n) |
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463 { |
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464 if (instance_ok ()) |
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465 instance->do_remove (n); |
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466 } |
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467 |
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468 int |
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469 command_history::where (void) |
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470 { |
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471 return (instance_ok ()) |
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472 ? instance->do_where () : 0; |
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473 } |
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474 |
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475 int |
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476 command_history::length (void) |
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477 { |
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478 return (instance_ok ()) |
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479 ? instance->do_length () : 0; |
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480 } |
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481 |
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482 int |
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483 command_history::max_input_history (void) |
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484 { |
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485 return (instance_ok ()) |
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486 ? instance->do_max_input_history () : 0; |
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487 } |
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488 |
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489 int |
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490 command_history::base (void) |
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491 { |
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492 return (instance_ok ()) |
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493 ? instance->do_base () : 0; |
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494 } |
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495 |
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496 int |
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497 command_history::current_number (void) |
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498 { |
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499 return (instance_ok ()) |
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500 ? instance->do_current_number () : 0; |
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501 } |
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502 |
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503 void |
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504 command_history::stifle (int n) |
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505 { |
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506 if (instance_ok ()) |
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507 instance->do_stifle (n); |
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508 } |
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509 |
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510 int |
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511 command_history::unstifle (void) |
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512 { |
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513 return (instance_ok ()) |
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514 ? instance->do_unstifle () : 0; |
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515 } |
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516 |
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517 int |
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518 command_history::is_stifled (void) |
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519 { |
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520 return (instance_ok ()) |
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521 ? instance->do_is_stifled () : 0; |
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522 } |
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523 |
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524 void |
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525 command_history::set_mark (int n) |
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526 { |
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527 if (instance_ok ()) |
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528 instance->do_set_mark (n); |
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529 } |
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530 |
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3519
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531 void |
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532 command_history::goto_mark (void) |
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2926
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533 { |
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534 if (instance_ok ()) |
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535 instance->do_goto_mark (); |
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536 } |
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537 |
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538 void |
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539 command_history::read (bool must_exist) |
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540 { |
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3522
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541 read (file (), must_exist); |
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2926
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542 } |
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543 |
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544 void |
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3504
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545 command_history::read (const std::string& f, bool must_exist) |
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2926
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546 { |
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547 if (instance_ok ()) |
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548 instance->do_read (f, must_exist); |
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549 } |
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550 |
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551 void |
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552 command_history::read_range (int from, int to, bool must_exist) |
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553 { |
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3522
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554 read_range (file (), from, to, must_exist); |
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2926
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555 } |
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556 |
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557 void |
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3504
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558 command_history::read_range (const std::string& f, int from, int to, |
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2926
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559 bool must_exist) |
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560 { |
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561 if (instance_ok ()) |
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562 instance->do_read_range (f, from, to, must_exist); |
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563 } |
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564 |
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565 void |
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3504
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566 command_history::write (const std::string& f) |
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2926
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567 { |
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568 if (instance_ok ()) |
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569 instance->do_write (f); |
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570 } |
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571 |
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572 void |
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3504
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573 command_history::append (const std::string& f) |
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2926
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574 { |
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575 if (instance_ok ()) |
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576 instance->do_append (f); |
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577 } |
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578 |
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579 void |
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3504
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580 command_history::truncate_file (const std::string& f, int n) |
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2926
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581 { |
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582 if (instance_ok ()) |
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583 instance->do_truncate_file (f, n); |
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584 } |
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585 |
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586 string_vector |
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587 command_history::list (int limit, bool number_lines) |
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588 { |
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589 return (instance_ok ()) |
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590 ? instance->do_list (limit, number_lines) : string_vector (); |
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591 } |
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592 |
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3504
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593 std::string |
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2926
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594 command_history::get_entry (int n) |
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595 { |
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596 return (instance_ok ()) |
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3504
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597 ? instance->do_get_entry (n) : std::string (); |
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2926
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598 } |
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599 |
|
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600 void |
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3504
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601 command_history::replace_entry (int which, const std::string& line) |
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2926
|
602 { |
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603 if (instance_ok ()) |
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604 instance->do_replace_entry (which, line); |
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|
605 } |
|
|
606 |
|
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607 void |
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3504
|
608 command_history::clean_up_and_save (const std::string& f, int n) |
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2926
|
609 { |
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610 if (instance_ok ()) |
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|
611 instance->do_clean_up_and_save (f, n); |
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|
612 } |
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613 |
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614 void |
|
3504
|
615 command_history::do_set_file (const std::string& f) |
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2926
|
616 { |
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|
617 xfile = f; |
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618 } |
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|
619 |
|
3504
|
620 std::string |
|
2926
|
621 command_history::do_file (void) |
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|
622 { |
|
|
623 return xfile; |
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|
624 } |
|
|
625 |
|
|
626 void |
|
|
627 command_history::do_set_size (int n) |
|
|
628 { |
|
|
629 xsize = n; |
|
|
630 } |
|
|
631 |
|
|
632 int |
|
|
633 command_history::do_size (void) |
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|
634 { |
|
|
635 return xsize; |
|
|
636 } |
|
|
637 |
|
|
638 void |
|
|
639 command_history::do_ignore_entries (bool flag) |
|
|
640 { |
|
|
641 ignoring_additions = flag; |
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|
642 } |
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|
643 |
|
|
644 bool |
|
|
645 command_history::do_ignoring_entries (void) |
|
|
646 { |
|
|
647 return ignoring_additions; |
|
|
648 } |
|
|
649 |
|
|
650 void |
|
3504
|
651 command_history::do_add (const std::string&) |
|
2926
|
652 { |
|
|
653 } |
|
|
654 |
|
|
655 void |
|
|
656 command_history::do_remove (int) |
|
|
657 { |
|
|
658 } |
|
|
659 |
|
|
660 int |
|
|
661 command_history::do_where (void) |
|
|
662 { |
|
|
663 return 0; |
|
|
664 } |
|
|
665 |
|
|
666 int |
|
|
667 command_history::do_length (void) |
|
|
668 { |
|
|
669 return 0; |
|
|
670 } |
|
|
671 |
|
|
672 int |
|
|
673 command_history::do_max_input_history (void) |
|
|
674 { |
|
|
675 return 0; |
|
|
676 } |
|
|
677 |
|
|
678 int |
|
|
679 command_history::do_base (void) |
|
|
680 { |
|
|
681 return 0; |
|
|
682 } |
|
|
683 |
|
|
684 int |
|
|
685 command_history::do_current_number (void) |
|
|
686 { |
|
|
687 return (xsize > 0) ? do_base () + do_where () : -1; |
|
|
688 } |
|
|
689 |
|
|
690 void |
|
|
691 command_history::do_stifle (int) |
|
|
692 { |
|
|
693 } |
|
|
694 |
|
|
695 int |
|
|
696 command_history::do_unstifle (void) |
|
|
697 { |
|
|
698 return -1; |
|
|
699 } |
|
|
700 |
|
|
701 int |
|
|
702 command_history::do_is_stifled (void) |
|
|
703 { |
|
|
704 return 0; |
|
|
705 } |
|
|
706 |
|
|
707 void |
|
|
708 command_history::do_set_mark (int) |
|
|
709 { |
|
|
710 } |
|
|
711 |
|
|
712 void |
|
|
713 command_history::do_goto_mark (void) |
|
|
714 { |
|
|
715 } |
|
|
716 |
|
|
717 void |
|
3504
|
718 command_history::do_read (const std::string& f, bool) |
|
2926
|
719 { |
|
|
720 if (f.empty ()) |
|
|
721 error ("command_history::read: missing file name"); |
|
|
722 } |
|
|
723 |
|
|
724 void |
|
3504
|
725 command_history::do_read_range (const std::string& f, int, int, bool) |
|
2926
|
726 { |
|
|
727 if (f.empty ()) |
|
|
728 error ("command_history::read_range: missing file name"); |
|
|
729 } |
|
|
730 |
|
|
731 void |
|
3504
|
732 command_history::do_write (const std::string& f_arg) |
|
2926
|
733 { |
|
3504
|
734 std::string f = f_arg; |
|
2926
|
735 |
|
|
736 if (f.empty ()) |
|
|
737 f = xfile; |
|
|
738 |
|
|
739 if (f.empty ()) |
|
|
740 error ("command_history::write: missing file name"); |
|
|
741 } |
|
|
742 |
|
|
743 void |
|
3504
|
744 command_history::do_append (const std::string& f_arg) |
|
2926
|
745 { |
|
|
746 if (lines_this_session) |
|
|
747 { |
|
|
748 if (lines_this_session < do_where ()) |
|
|
749 { |
|
|
750 // Create file if it doesn't already exist. |
|
|
751 |
|
3504
|
752 std::string f = f_arg; |
|
2926
|
753 |
|
|
754 if (f.empty ()) |
|
|
755 f = xfile; |
|
|
756 |
|
|
757 if (f.empty ()) |
|
|
758 error ("command_history::append: missing file name"); |
|
|
759 } |
|
|
760 } |
|
|
761 } |
|
|
762 |
|
|
763 void |
|
3504
|
764 command_history::do_truncate_file (const std::string& f_arg, int) |
|
2926
|
765 { |
|
3504
|
766 std::string f = f_arg; |
|
2926
|
767 |
|
|
768 if (f.empty ()) |
|
|
769 f = xfile; |
|
|
770 |
|
|
771 if (f.empty ()) |
|
|
772 error ("command_history::truncate_file: missing file name"); |
|
|
773 } |
|
|
774 |
|
|
775 string_vector |
|
|
776 command_history::do_list (int, bool) |
|
|
777 { |
|
|
778 return string_vector (); |
|
|
779 } |
|
|
780 |
|
3504
|
781 std::string |
|
2926
|
782 command_history::do_get_entry (int) |
|
|
783 { |
|
3504
|
784 return std::string (); |
|
2926
|
785 } |
|
|
786 |
|
|
787 void |
|
3504
|
788 command_history::do_replace_entry (int, const std::string&) |
|
2926
|
789 { |
|
|
790 } |
|
|
791 |
|
|
792 void |
|
3504
|
793 command_history::do_clean_up_and_save (const std::string& f_arg, int) |
|
2926
|
794 { |
|
3504
|
795 std::string f = f_arg; |
|
2926
|
796 |
|
|
797 if (f.empty ()) |
|
|
798 f = xfile; |
|
|
799 |
|
|
800 if (f.empty ()) |
|
1797
|
801 error ("command_history::clean_up_and_save: missing file name"); |
|
|
802 } |
|
|
803 |
|
|
804 void |
|
2470
|
805 command_history::error (int err_num) |
|
1797
|
806 { |
|
2470
|
807 (*current_liboctave_error_handler) ("%s", strerror (err_num)); |
|
1797
|
808 } |
|
|
809 |
|
|
810 void |
|
3504
|
811 command_history::error (const std::string& s) |
|
1797
|
812 { |
|
|
813 (*current_liboctave_error_handler) ("%s", s.c_str ()); |
|
|
814 } |
|
|
815 |
|
|
816 /* |
|
|
817 ;;; Local Variables: *** |
|
|
818 ;;; mode: C++ *** |
|
|
819 ;;; End: *** |
|
|
820 */ |
