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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2000, 2004, 2005, 2006, 2007 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 3 of the License, or (at your |
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10 option) any 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, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_cmd_hist_h) |
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24 #define octave_cmd_hist_h 1 |
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25 |
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26 #include <string> |
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27 |
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28 #include "str-vec.h" |
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29 |
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30 class |
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31 OCTAVE_API |
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32 command_history |
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33 { |
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34 protected: |
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35 |
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36 command_history (void) |
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37 : ignoring_additions (false), lines_in_file (0), |
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38 lines_this_session (0), xfile (), xsize (-1) { } |
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39 |
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40 public: |
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41 |
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42 virtual ~command_history (void) { } |
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43 |
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44 static void set_file (const std::string&); |
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45 |
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46 static std::string file (void); |
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47 |
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48 static void set_size (int); |
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49 |
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50 static int size (void); |
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51 |
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52 static void ignore_entries (bool = true); |
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53 |
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54 static bool ignoring_entries (void); |
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55 |
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56 static void add (const std::string&); |
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57 |
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58 static void remove (int); |
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59 |
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60 static int where (void); |
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61 |
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62 static int length (void); |
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63 |
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64 static int max_input_history (void); |
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65 |
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66 static int base (void); |
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67 |
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68 static int current_number (void); |
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69 |
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70 static void stifle (int); |
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71 |
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72 static int unstifle (void); |
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73 |
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74 static int is_stifled (void); |
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75 |
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76 static void set_mark (int n); |
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77 |
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78 // Gag. This declaration has to match the Function typedef in |
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79 // readline.h. |
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80 |
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81 static int goto_mark (void); |
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82 |
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83 static void read (bool = true); |
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84 |
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85 static void read (const std::string&, bool = true); |
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86 |
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87 static void read_range (int = -1, int = -1, bool = true); |
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88 |
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89 static void read_range (const std::string&, int = -1, int = -1, |
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90 bool = true); |
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91 |
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92 static void write (const std::string& = std::string ()); |
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93 |
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94 static void append (const std::string& = std::string ()); |
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95 |
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96 static void truncate_file (const std::string& = std::string (), int = -1); |
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97 |
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98 static string_vector list (int = -1, bool = false); |
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99 |
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100 static std::string get_entry (int); |
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101 |
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102 static void replace_entry (int, const std::string&); |
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103 |
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104 static void clean_up_and_save (const std::string& = std::string (), int = -1); |
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105 |
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106 private: |
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107 |
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108 // No copying! |
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109 |
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110 command_history (const command_history&); |
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111 |
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112 command_history& operator = (const command_history&); |
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113 |
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114 static bool instance_ok (void); |
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115 |
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116 static void make_command_history (void); |
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117 |
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118 // The real thing. |
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119 static command_history *instance; |
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120 |
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121 protected: |
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122 |
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123 // To use something other than the GNU history library, derive a new |
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124 // class from command_history, overload these functions as |
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125 // necessary, and make instance point to the new class. |
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126 |
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127 virtual void do_set_file (const std::string&); |
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128 |
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129 virtual std::string do_file (void); |
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130 |
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131 virtual void do_set_size (int); |
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132 |
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133 virtual int do_size (void); |
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134 |
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135 virtual void do_ignore_entries (bool); |
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136 |
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137 virtual bool do_ignoring_entries (void); |
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138 |
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139 virtual void do_add (const std::string&); |
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140 |
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141 virtual void do_remove (int); |
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142 |
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143 virtual int do_where (void); |
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144 |
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145 virtual int do_length (void); |
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146 |
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147 virtual int do_max_input_history (void); |
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148 |
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149 virtual int do_base (void); |
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150 |
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151 virtual int do_current_number (void); |
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152 |
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153 virtual void do_stifle (int); |
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154 |
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155 virtual int do_unstifle (void); |
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156 |
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157 virtual int do_is_stifled (void); |
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158 |
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159 virtual void do_set_mark (int); |
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160 |
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161 virtual int do_goto_mark (void); |
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162 |
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163 virtual void do_read (const std::string&, bool); |
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164 |
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165 virtual void do_read_range (const std::string&, int, int, bool); |
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166 |
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167 virtual void do_write (const std::string&); |
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168 |
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169 virtual void do_append (const std::string&); |
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170 |
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171 virtual void do_truncate_file (const std::string&, int); |
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172 |
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173 virtual string_vector do_list (int, bool); |
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174 |
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175 virtual std::string do_get_entry (int); |
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176 |
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177 virtual void do_replace_entry (int, const std::string&); |
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178 |
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179 virtual void do_clean_up_and_save (const std::string&, int); |
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180 |
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181 void error (int); |
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182 |
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183 void error (const std::string&); |
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184 |
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185 // TRUE means we are ignoring new additions. |
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186 bool ignoring_additions; |
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187 |
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188 // The number of hisory lines we read from the history file. |
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189 int lines_in_file; |
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190 |
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191 // The number of history lines we've saved so far. |
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192 int lines_this_session; |
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193 |
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194 // The default history file. |
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195 std::string xfile; |
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196 |
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197 // The number of lines of history to save. |
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198 int xsize; |
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199 }; |
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200 |
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201 #endif |
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202 |
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203 /* |
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204 ;;; Local Variables: *** |
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205 ;;; mode: C++ *** |
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206 ;;; End: *** |
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207 */ |
