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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 <cstdlib> |
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28 #include <cstring> |
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29 |
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30 #include <string> |
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31 |
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32 #ifdef HAVE_UNISTD_H |
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33 #ifdef HAVE_SYS_TYPES_H |
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34 #include <sys/types.h> |
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35 #endif |
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36 #include <unistd.h> |
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37 #endif |
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38 |
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39 #include "cmd-edit.h" |
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40 #include "cmd-hist.h" |
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41 #include "lo-error.h" |
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42 #include "lo-utils.h" |
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43 #include "oct-env.h" |
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44 #include "oct-time.h" |
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45 |
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46 command_editor *command_editor::instance = 0; |
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47 |
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48 #if defined (USE_READLINE) |
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49 |
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50 #include <cstdio> |
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51 #include <cstdlib> |
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52 |
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53 #include "oct-rl-edit.h" |
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54 |
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55 class |
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56 gnu_readline : public command_editor |
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57 { |
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58 public: |
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59 |
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60 typedef command_editor::startup_hook_fcn startup_hook_fcn; |
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61 |
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62 typedef command_editor::event_hook_fcn event_hook_hook_fcn; |
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63 |
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64 typedef command_editor::completion_fcn completion_fcn; |
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65 |
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66 gnu_readline (void); |
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67 |
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68 ~gnu_readline (void) { } |
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69 |
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70 void do_set_name (const std::string& n); |
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71 |
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72 std::string do_readline (const std::string& prompt, bool& eof); |
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73 |
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74 void do_set_input_stream (FILE *f); |
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75 |
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76 FILE *do_get_input_stream (void); |
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77 |
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78 void do_set_output_stream (FILE *f); |
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79 |
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80 FILE *do_get_output_stream (void); |
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81 |
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82 int do_terminal_rows (void); |
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83 |
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84 int do_terminal_cols (void); |
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85 |
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86 void do_clear_screen (void); |
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87 |
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88 void do_resize_terminal (void); |
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89 |
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90 std::string newline_chars (void); |
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91 |
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92 void do_restore_terminal_state (void); |
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93 |
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94 void do_blink_matching_paren (bool flag); |
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95 |
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96 void do_set_basic_word_break_characters (const std::string& s); |
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97 |
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98 void do_set_completer_word_break_characters (const std::string& s); |
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99 |
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100 void do_set_basic_quote_characters (const std::string& s); |
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101 |
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102 void do_set_completion_append_character (char c); |
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103 |
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104 void do_set_completion_function (completion_fcn f); |
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105 |
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106 completion_fcn do_get_completion_function (void) const; |
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107 |
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108 void do_insert_text (const std::string& text); |
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109 |
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110 void do_newline (void); |
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111 |
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112 void do_clear_undo_list (void); |
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113 |
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114 void do_set_startup_hook (startup_hook_fcn f); |
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115 |
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116 void do_restore_startup_hook (void); |
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117 |
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118 void do_set_event_hook (event_hook_fcn f); |
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119 |
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120 void do_restore_event_hook (void); |
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121 |
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122 void do_read_init_file (const std::string& file); |
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123 |
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124 static int operate_and_get_next (int, int); |
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125 |
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126 private: |
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127 |
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128 startup_hook_fcn previous_startup_hook; |
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129 |
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130 event_hook_fcn previous_event_hook; |
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131 |
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132 completion_fcn completion_function; |
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133 |
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134 static char *command_generator (const char *text, int state); |
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135 |
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136 static char **command_completer (const char *text, int start, int end); |
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137 }; |
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138 |
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139 gnu_readline::gnu_readline () |
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140 : command_editor (), previous_startup_hook (0), |
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141 previous_event_hook (0), completion_function (0) |
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142 { |
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143 // XXX FIXME XXX -- need interface to rl_add_defun, rl_initialize, and |
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144 // a function to set rl_terminal_name |
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145 |
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146 std::string term = octave_env::getenv ("TERM"); |
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147 |
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148 octave_rl_set_terminal_name (term.c_str ()); |
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149 |
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150 octave_rl_initialize (); |
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151 |
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152 do_blink_matching_paren (true); |
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153 |
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154 /* Bind operate-and-get-next. */ |
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155 |
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156 octave_rl_add_defun ("operate-and-get-next", |
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157 gnu_readline::operate_and_get_next, |
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158 octave_rl_ctrl ('O')); |
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159 |
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160 /* And the history search functions. */ |
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161 |
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162 octave_rl_add_defun ("history-search-backward", |
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163 octave_rl_history_search_backward, |
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164 octave_rl_meta ('P')); |
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165 |
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166 octave_rl_add_defun ("history-search-forward", |
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167 octave_rl_history_search_forward, |
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168 octave_rl_meta ('N')); |
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169 } |
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170 |
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171 |
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172 |
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173 void |
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174 gnu_readline::do_set_name (const std::string& nm) |
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175 { |
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176 ::octave_rl_set_name (nm.c_str ()); |
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177 } |
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178 |
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179 std::string |
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180 gnu_readline::do_readline (const std::string& prompt, bool& eof) |
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181 { |
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182 std::string retval; |
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183 |
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184 eof = false; |
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185 |
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186 char *line = ::octave_rl_readline (prompt.c_str ()); |
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187 |
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188 if (line) |
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189 { |
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190 retval = line; |
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191 |
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192 free (line); |
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193 } |
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194 else |
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195 eof = true; |
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196 |
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197 return retval; |
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198 } |
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199 |
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200 void |
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201 gnu_readline::do_set_input_stream (FILE *f) |
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202 { |
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203 ::octave_rl_set_input_stream (f); |
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204 } |
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205 |
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206 FILE * |
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207 gnu_readline::do_get_input_stream (void) |
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208 { |
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209 return ::octave_rl_get_input_stream (); |
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210 } |
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211 |
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212 void |
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213 gnu_readline::do_set_output_stream (FILE *f) |
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214 { |
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215 ::octave_rl_set_output_stream (f); |
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216 } |
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217 |
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218 FILE * |
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219 gnu_readline::do_get_output_stream (void) |
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220 { |
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221 return ::octave_rl_get_output_stream (); |
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222 } |
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223 |
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224 // GNU readline handles SIGWINCH, so these values have a good chance |
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225 // of being correct even if the window changes size (they may be |
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226 // wrong if, for example, the luser changes the window size while the |
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227 // pager is running, and the signal is handled by the pager instead of |
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228 // us. |
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229 |
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230 int |
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231 gnu_readline::do_terminal_rows (void) |
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232 { |
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233 int sh = ::octave_rl_screen_height (); |
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234 |
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235 return sh > 0 ? sh : 24; |
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236 } |
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237 |
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238 int |
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239 gnu_readline::do_terminal_cols (void) |
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240 { |
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241 int sw = ::octave_rl_screen_width (); |
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242 |
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243 return sw > 0 ? sw : 80; |
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244 } |
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245 |
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246 void |
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247 gnu_readline::do_clear_screen (void) |
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248 { |
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249 ::octave_rl_clear_screen (); |
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250 } |
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251 |
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252 void |
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253 gnu_readline::do_resize_terminal (void) |
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254 { |
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255 ::octave_rl_resize_terminal (); |
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256 } |
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257 |
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258 std::string |
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259 gnu_readline::newline_chars (void) |
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260 { |
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261 return "\r\n"; |
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262 } |
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263 |
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264 void |
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265 gnu_readline::do_restore_terminal_state (void) |
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266 { |
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267 ::octave_rl_restore_terminal_state (); |
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268 } |
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269 |
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270 void |
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271 gnu_readline::do_blink_matching_paren (bool flag) |
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272 { |
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273 ::octave_rl_enable_paren_matching (flag ? 1 : 0); |
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274 } |
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275 |
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276 void |
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277 gnu_readline::do_set_basic_word_break_characters (const std::string& s) |
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278 { |
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279 ::octave_rl_set_basic_word_break_characters (s.c_str ()); |
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280 } |
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281 |
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282 void |
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283 gnu_readline::do_set_completer_word_break_characters (const std::string& s) |
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284 { |
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285 ::octave_rl_set_completer_word_break_characters (s.c_str ()); |
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286 } |
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287 |
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288 void |
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289 gnu_readline::do_set_basic_quote_characters (const std::string& s) |
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290 { |
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291 ::octave_rl_set_basic_quote_characters (s.c_str ()); |
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292 } |
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293 |
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294 void |
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295 gnu_readline::do_set_completion_append_character (char c) |
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296 { |
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297 ::octave_rl_set_completion_append_character (c); |
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298 } |
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299 |
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300 void |
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301 gnu_readline::do_set_completion_function (completion_fcn f) |
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302 { |
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303 completion_function = f; |
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304 |
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305 rl_attempted_completion_fcn_ptr fp |
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306 = f ? gnu_readline::command_completer : 0; |
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307 |
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308 ::octave_rl_set_completion_function (fp); |
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309 } |
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310 |
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311 gnu_readline::completion_fcn |
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312 gnu_readline::do_get_completion_function (void) const |
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313 { |
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314 return completion_function; |
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315 } |
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316 |
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317 void |
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318 gnu_readline::do_insert_text (const std::string& text) |
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319 { |
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320 ::octave_rl_insert_text (text.c_str ()); |
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321 } |
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322 |
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323 void |
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324 gnu_readline::do_newline (void) |
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325 { |
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326 ::octave_rl_newline (); |
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327 } |
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328 |
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329 void |
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330 gnu_readline::do_clear_undo_list () |
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331 { |
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332 ::octave_rl_clear_undo_list (); |
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333 } |
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334 |
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335 void |
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336 gnu_readline::do_set_startup_hook (startup_hook_fcn f) |
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337 { |
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338 previous_startup_hook = ::octave_rl_get_startup_hook (); |
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339 |
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340 ::octave_rl_set_startup_hook (f); |
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341 } |
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342 |
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343 void |
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344 gnu_readline::do_restore_startup_hook (void) |
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345 { |
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346 ::octave_rl_set_startup_hook (previous_startup_hook); |
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347 } |
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348 |
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349 void |
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350 gnu_readline::do_set_event_hook (event_hook_fcn f) |
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351 { |
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352 previous_event_hook = octave_rl_get_event_hook (); |
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353 |
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354 ::octave_rl_set_event_hook (f); |
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355 } |
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356 |
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357 void |
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358 gnu_readline::do_restore_event_hook (void) |
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359 { |
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360 ::octave_rl_set_event_hook (previous_event_hook); |
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361 } |
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362 |
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363 void |
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364 gnu_readline::do_read_init_file (const std::string& file) |
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365 { |
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366 ::octave_rl_read_init_file (file.c_str ()); |
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367 } |
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368 |
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369 int |
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370 gnu_readline::operate_and_get_next (int /* count */, int /* c */) |
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371 { |
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372 // Accept the current line. |
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373 |
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374 command_editor::newline (); |
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375 |
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376 // Find the current line, and find the next line to use. |
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377 |
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378 int x_where = command_history::where (); |
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379 |
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380 int x_length = command_history::length (); |
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381 |
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382 if ((command_history::is_stifled () |
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383 && (x_length >= command_history::max_input_history ())) |
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384 || (x_where >= x_length - 1)) |
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385 command_history::set_mark (x_where); |
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386 else |
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387 command_history::set_mark (x_where + 1); |
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388 |
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389 command_editor::set_startup_hook (command_history::goto_mark); |
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390 |
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391 return 0; |
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392 } |
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393 |
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394 char * |
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395 gnu_readline::command_generator (const char *text, int state) |
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396 { |
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397 char *retval = 0; |
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398 |
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399 completion_fcn f = command_editor::get_completion_function (); |
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400 |
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401 std::string tmp = f (text, state); |
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402 |
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403 size_t len = tmp.length (); |
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404 |
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405 if (len > 0) |
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406 { |
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407 retval = static_cast<char *> (malloc (len+1)); |
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408 |
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409 strcpy (retval, tmp.c_str ()); |
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410 } |
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411 |
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412 return retval; |
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413 } |
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414 |
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415 char ** |
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416 gnu_readline::command_completer (const char *text, int, int) |
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417 { |
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418 char **matches = 0; |
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419 matches |
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420 = ::octave_rl_completion_matches (text, gnu_readline::command_generator); |
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421 return matches; |
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422 } |
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423 |
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424 #endif |
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425 |
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426 class |
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427 default_command_editor : public command_editor |
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428 { |
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429 public: |
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430 |
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431 default_command_editor (void) |
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432 : command_editor (), input_stream (stdin), output_stream (stdout) { } |
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433 |
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434 ~default_command_editor (void) { } |
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435 |
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436 std::string do_readline (const std::string& prompt, bool& eof); |
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437 |
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438 void do_set_input_stream (FILE *f); |
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439 |
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440 FILE *do_get_input_stream (void); |
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441 |
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442 void do_set_output_stream (FILE *f); |
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443 |
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444 FILE *do_get_output_stream (void); |
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445 |
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446 void do_insert_text (const std::string&); |
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447 |
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448 void do_newline (void); |
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449 |
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450 private: |
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451 |
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452 FILE *input_stream; |
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453 |
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454 FILE *output_stream; |
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455 }; |
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456 |
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457 std::string |
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458 default_command_editor::do_readline (const std::string& prompt, bool& eof) |
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459 { |
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460 eof = false; |
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461 |
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462 fprintf (output_stream, prompt.c_str ()); |
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463 fflush (output_stream); |
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464 |
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465 return octave_fgets (input_stream); |
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466 } |
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467 |
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468 void |
|
|
469 default_command_editor::do_set_input_stream (FILE *f) |
|
|
470 { |
|
|
471 input_stream = f; |
|
|
472 } |
|
|
473 |
|
|
474 FILE * |
|
|
475 default_command_editor::do_get_input_stream (void) |
|
|
476 { |
|
|
477 return input_stream; |
|
|
478 } |
|
|
479 |
|
|
480 void |
|
|
481 default_command_editor::do_set_output_stream (FILE *f) |
|
|
482 { |
|
|
483 output_stream = f; |
|
|
484 } |
|
|
485 |
|
|
486 FILE * |
|
|
487 default_command_editor::do_get_output_stream (void) |
|
|
488 { |
|
|
489 return output_stream; |
|
|
490 } |
|
|
491 |
|
|
492 void |
|
3504
|
493 default_command_editor::do_insert_text (const std::string&) |
|
2926
|
494 { |
|
|
495 // XXX FIXME XXX |
|
|
496 } |
|
|
497 |
|
|
498 void |
|
|
499 default_command_editor::do_newline (void) |
|
|
500 { |
|
|
501 // XXX FIXME XXX |
|
|
502 } |
|
|
503 |
|
|
504 bool |
|
|
505 command_editor::instance_ok (void) |
|
|
506 { |
|
|
507 bool retval = true; |
|
|
508 |
|
|
509 if (! instance) |
|
|
510 make_command_editor (); |
|
|
511 |
|
|
512 if (! instance) |
|
|
513 { |
|
2941
|
514 current_liboctave_error_handler |
|
2926
|
515 ("unable to create command history object!"); |
|
|
516 |
|
|
517 retval = false; |
|
|
518 } |
|
|
519 |
|
|
520 return retval; |
|
|
521 } |
|
|
522 |
|
|
523 void |
|
|
524 command_editor::make_command_editor (void) |
|
|
525 { |
|
|
526 #if defined (USE_READLINE) |
|
|
527 instance = new gnu_readline (); |
|
|
528 #else |
|
|
529 instance = new default_command_editor (); |
|
|
530 #endif |
|
|
531 } |
|
|
532 |
|
|
533 void |
|
3504
|
534 command_editor::set_name (const std::string& n) |
|
2926
|
535 { |
|
|
536 if (instance_ok ()) |
|
|
537 instance->do_set_name (n); |
|
|
538 } |
|
|
539 |
|
3504
|
540 std::string |
|
|
541 command_editor::readline (const std::string& prompt) |
|
2926
|
542 { |
|
3219
|
543 bool eof; |
|
|
544 |
|
|
545 return readline (prompt, eof); |
|
|
546 } |
|
|
547 |
|
3504
|
548 std::string |
|
|
549 command_editor::readline (const std::string& prompt, bool& eof) |
|
3219
|
550 { |
|
2926
|
551 return (instance_ok ()) |
|
3504
|
552 ? instance->do_readline (prompt, eof) : std::string (); |
|
2926
|
553 } |
|
|
554 |
|
|
555 void |
|
|
556 command_editor::set_input_stream (FILE *f) |
|
|
557 { |
|
|
558 if (instance_ok ()) |
|
|
559 instance->do_set_input_stream (f); |
|
|
560 } |
|
|
561 |
|
|
562 FILE * |
|
|
563 command_editor::get_input_stream (void) |
|
|
564 { |
|
|
565 return (instance_ok ()) |
|
|
566 ? instance->do_get_input_stream () : 0; |
|
|
567 } |
|
|
568 |
|
|
569 void |
|
|
570 command_editor::set_output_stream (FILE *f) |
|
|
571 { |
|
|
572 if (instance_ok ()) |
|
|
573 instance->do_set_output_stream (f); |
|
|
574 } |
|
|
575 |
|
|
576 FILE * |
|
|
577 command_editor::get_output_stream (void) |
|
|
578 { |
|
|
579 return (instance_ok ()) |
|
|
580 ? instance->do_get_output_stream () : 0; |
|
|
581 } |
|
|
582 |
|
|
583 int |
|
|
584 command_editor::terminal_rows (void) |
|
|
585 { |
|
|
586 return (instance_ok ()) |
|
|
587 ? instance->do_terminal_rows () : -1; |
|
|
588 } |
|
|
589 |
|
|
590 int |
|
|
591 command_editor::terminal_cols (void) |
|
|
592 { |
|
|
593 return (instance_ok ()) |
|
|
594 ? instance->do_terminal_cols () : -1; |
|
|
595 } |
|
|
596 |
|
|
597 void |
|
|
598 command_editor::clear_screen (void) |
|
|
599 { |
|
|
600 if (instance_ok ()) |
|
|
601 instance->do_clear_screen (); |
|
|
602 } |
|
|
603 |
|
3281
|
604 void |
|
|
605 command_editor::resize_terminal (void) |
|
|
606 { |
|
|
607 if (instance_ok ()) |
|
|
608 instance->do_resize_terminal (); |
|
|
609 } |
|
|
610 |
|
3504
|
611 std::string |
|
|
612 command_editor::decode_prompt_string (const std::string& s) |
|
2926
|
613 { |
|
|
614 return (instance_ok ()) |
|
3504
|
615 ? instance->do_decode_prompt_string (s) : std::string (); |
|
2926
|
616 } |
|
|
617 |
|
|
618 int |
|
|
619 command_editor::current_command_number (void) |
|
|
620 { |
|
|
621 return (instance_ok ()) |
|
|
622 ? instance->command_number : 0; |
|
|
623 } |
|
|
624 |
|
|
625 void |
|
|
626 command_editor::reset_current_command_number (int n) |
|
|
627 { |
|
|
628 if (instance_ok ()) |
|
|
629 instance->command_number = n; |
|
|
630 } |
|
|
631 |
|
|
632 void |
|
2967
|
633 command_editor::increment_current_command_number (void) |
|
|
634 { |
|
|
635 if (instance_ok ()) |
|
|
636 instance->command_number++; |
|
|
637 } |
|
|
638 |
|
|
639 void |
|
2926
|
640 command_editor::restore_terminal_state (void) |
|
|
641 { |
|
|
642 if (instance_ok ()) |
|
|
643 instance->do_restore_terminal_state (); |
|
|
644 } |
|
|
645 |
|
|
646 void |
|
|
647 command_editor::blink_matching_paren (bool flag) |
|
|
648 { |
|
|
649 if (instance_ok ()) |
|
|
650 instance->do_blink_matching_paren (flag); |
|
|
651 } |
|
|
652 |
|
|
653 void |
|
3933
|
654 command_editor::set_basic_word_break_characters (const std::string& s) |
|
|
655 { |
|
|
656 if (instance_ok ()) |
|
|
657 instance->do_set_basic_word_break_characters (s); |
|
|
658 } |
|
|
659 |
|
|
660 void |
|
|
661 command_editor::set_completer_word_break_characters (const std::string& s) |
|
|
662 { |
|
|
663 if (instance_ok ()) |
|
|
664 instance->do_set_completer_word_break_characters (s); |
|
|
665 } |
|
|
666 |
|
|
667 void |
|
3504
|
668 command_editor::set_basic_quote_characters (const std::string& s) |
|
2926
|
669 { |
|
|
670 if (instance_ok ()) |
|
3004
|
671 instance->do_set_basic_quote_characters (s); |
|
2926
|
672 } |
|
|
673 |
|
|
674 void |
|
|
675 command_editor::set_completion_append_character (char c) |
|
|
676 { |
|
|
677 if (instance_ok ()) |
|
|
678 instance->do_set_completion_append_character (c); |
|
|
679 } |
|
|
680 |
|
|
681 void |
|
2941
|
682 command_editor::set_completion_function (completion_fcn f) |
|
2926
|
683 { |
|
|
684 if (instance_ok ()) |
|
2941
|
685 instance->do_set_completion_function (f); |
|
|
686 } |
|
|
687 |
|
|
688 command_editor::completion_fcn |
|
|
689 command_editor::get_completion_function (void) |
|
|
690 { |
|
|
691 return (instance_ok ()) |
|
|
692 ? instance->do_get_completion_function () : 0; |
|
2926
|
693 } |
|
|
694 |
|
|
695 void |
|
3504
|
696 command_editor::insert_text (const std::string& text) |
|
2926
|
697 { |
|
|
698 if (instance_ok ()) |
|
|
699 instance->do_insert_text (text); |
|
|
700 } |
|
|
701 |
|
|
702 void |
|
|
703 command_editor::newline (void) |
|
|
704 { |
|
|
705 if (instance_ok ()) |
|
|
706 instance->do_newline (); |
|
|
707 } |
|
|
708 |
|
|
709 void |
|
|
710 command_editor::clear_undo_list (void) |
|
|
711 { |
|
|
712 if (instance_ok ()) |
|
|
713 instance->do_clear_undo_list (); |
|
|
714 } |
|
|
715 |
|
|
716 void |
|
3519
|
717 command_editor::set_startup_hook (startup_hook_fcn f) |
|
2926
|
718 { |
|
|
719 if (instance_ok ()) |
|
|
720 instance->do_set_startup_hook (f); |
|
|
721 } |
|
|
722 |
|
|
723 void |
|
|
724 command_editor::restore_startup_hook (void) |
|
|
725 { |
|
|
726 if (instance_ok ()) |
|
|
727 instance->do_restore_startup_hook (); |
|
|
728 } |
|
|
729 |
|
3189
|
730 void |
|
3519
|
731 command_editor::set_event_hook (event_hook_fcn f) |
|
3215
|
732 { |
|
|
733 if (instance_ok ()) |
|
|
734 instance->do_set_event_hook (f); |
|
|
735 } |
|
|
736 |
|
|
737 void |
|
|
738 command_editor::restore_event_hook (void) |
|
|
739 { |
|
|
740 if (instance_ok ()) |
|
|
741 instance->do_restore_event_hook (); |
|
|
742 } |
|
|
743 |
|
|
744 void |
|
3504
|
745 command_editor::read_init_file (const std::string& file) |
|
3189
|
746 { |
|
|
747 if (instance_ok ()) |
|
|
748 instance->do_read_init_file (file); |
|
|
749 } |
|
|
750 |
|
2926
|
751 // Return a string which will be printed as a prompt. The string may |
|
|
752 // contain special characters which are decoded as follows: |
|
|
753 // |
|
|
754 // \t the time |
|
|
755 // \d the date |
|
|
756 // \n CRLF |
|
|
757 // \s the name of the shell (program) |
|
|
758 // \w the current working directory |
|
|
759 // \W the last element of PWD |
|
|
760 // \u your username |
|
|
761 // \h the hostname |
|
|
762 // \# the command number of this command |
|
|
763 // \! the history number of this command |
|
|
764 // \$ a $ or a # if you are root |
|
|
765 // \<octal> character code in octal |
|
|
766 // \\ a backslash |
|
|
767 |
|
3504
|
768 std::string |
|
|
769 command_editor::do_decode_prompt_string (const std::string& s) |
|
2926
|
770 { |
|
3504
|
771 std::string result; |
|
|
772 std::string temp; |
|
2926
|
773 size_t i = 0; |
|
|
774 size_t slen = s.length (); |
|
|
775 int c; |
|
|
776 |
|
|
777 while (i < slen) |
|
|
778 { |
|
|
779 c = s[i]; |
|
|
780 |
|
|
781 i++; |
|
|
782 |
|
|
783 if (c == '\\') |
|
|
784 { |
|
|
785 c = s[i]; |
|
|
786 |
|
|
787 switch (c) |
|
|
788 { |
|
|
789 case '0': |
|
|
790 case '1': |
|
|
791 case '2': |
|
|
792 case '3': |
|
|
793 case '4': |
|
|
794 case '5': |
|
|
795 case '6': |
|
|
796 case '7': |
|
|
797 // Maybe convert an octal number. |
|
|
798 { |
|
|
799 int n = read_octal (s.substr (i, 3)); |
|
|
800 |
|
|
801 temp = "\\"; |
|
|
802 |
|
|
803 if (n != -1) |
|
|
804 { |
|
|
805 i += 3; |
|
|
806 temp[0] = n; |
|
|
807 } |
|
|
808 |
|
|
809 c = 0; |
|
|
810 goto add_string; |
|
|
811 } |
|
|
812 |
|
|
813 case 't': |
|
|
814 case 'd': |
|
|
815 // Make the current time/date into a string. |
|
|
816 { |
|
3260
|
817 octave_time now; |
|
2926
|
818 |
|
3260
|
819 temp = now.ctime (); |
|
2926
|
820 |
|
|
821 if (c == 't') |
|
|
822 { |
|
|
823 temp = temp.substr (11); |
|
|
824 temp.resize (8); |
|
|
825 } |
|
|
826 else |
|
|
827 temp.resize (10); |
|
|
828 |
|
|
829 goto add_string; |
|
|
830 } |
|
|
831 |
|
|
832 case 'n': |
|
|
833 { |
|
|
834 temp = newline_chars (); |
|
|
835 |
|
|
836 goto add_string; |
|
|
837 } |
|
|
838 |
|
|
839 case 's': |
|
|
840 { |
|
|
841 temp = octave_env::get_program_name (); |
|
|
842 temp = octave_env::base_pathname (temp); |
|
|
843 |
|
|
844 goto add_string; |
|
|
845 } |
|
|
846 |
|
|
847 case 'w': |
|
|
848 case 'W': |
|
|
849 { |
|
|
850 temp = octave_env::getcwd (); |
|
|
851 |
|
|
852 if (c == 'W') |
|
|
853 { |
|
|
854 size_t pos = temp.rfind ('/'); |
|
|
855 |
|
|
856 if (pos != NPOS && pos != 0) |
|
|
857 temp = temp.substr (pos + 1); |
|
|
858 } |
|
|
859 else |
|
|
860 temp = octave_env::polite_directory_format (temp); |
|
|
861 |
|
|
862 goto add_string; |
|
|
863 } |
|
|
864 |
|
|
865 case 'u': |
|
|
866 { |
|
|
867 temp = octave_env::get_user_name (); |
|
|
868 |
|
|
869 goto add_string; |
|
|
870 } |
|
|
871 |
|
|
872 case 'H': |
|
|
873 { |
|
|
874 temp = octave_env::get_host_name (); |
|
|
875 |
|
|
876 goto add_string; |
|
|
877 } |
|
|
878 |
|
|
879 case 'h': |
|
|
880 { |
|
|
881 temp = octave_env::get_host_name (); |
|
|
882 |
|
|
883 size_t pos = temp.find ('.'); |
|
|
884 |
|
|
885 if (pos != NPOS) |
|
|
886 temp.resize (pos); |
|
|
887 |
|
|
888 goto add_string; |
|
|
889 } |
|
|
890 |
|
|
891 case '#': |
|
|
892 { |
|
|
893 char number_buffer[128]; |
|
|
894 sprintf (number_buffer, "%d", command_number); |
|
|
895 temp = number_buffer; |
|
|
896 |
|
|
897 goto add_string; |
|
|
898 } |
|
|
899 |
|
|
900 case '!': |
|
|
901 { |
|
|
902 char number_buffer[128]; |
|
|
903 int num = command_history::current_number (); |
|
|
904 if (num > 0) |
|
|
905 sprintf (number_buffer, "%d", num); |
|
|
906 else |
|
|
907 strcpy (number_buffer, "!"); |
|
|
908 temp = number_buffer; |
|
|
909 |
|
|
910 goto add_string; |
|
|
911 } |
|
|
912 |
|
|
913 case '$': |
|
|
914 { |
|
|
915 temp = (::geteuid () == 0 ? "#" : "$"); |
|
|
916 |
|
|
917 goto add_string; |
|
|
918 } |
|
|
919 |
|
|
920 #if defined (USE_READLINE) |
|
|
921 case '[': |
|
|
922 case ']': |
|
|
923 { |
|
|
924 temp.resize (2); |
|
|
925 |
|
|
926 temp[0] = '\001'; |
|
|
927 temp[1] = ((c == '[') |
|
3519
|
928 ? ::octave_rl_prompt_start_ignore () |
|
|
929 : ::octave_rl_prompt_end_ignore ()); |
|
2926
|
930 |
|
|
931 goto add_string; |
|
|
932 } |
|
|
933 #endif |
|
|
934 |
|
|
935 case '\\': |
|
|
936 { |
|
|
937 temp = "\\"; |
|
|
938 |
|
|
939 goto add_string; |
|
|
940 } |
|
|
941 |
|
|
942 default: |
|
|
943 { |
|
|
944 temp = "\\ "; |
|
|
945 temp[1] = c; |
|
|
946 |
|
|
947 goto add_string; |
|
|
948 } |
|
|
949 |
|
|
950 add_string: |
|
|
951 { |
|
|
952 if (c) |
|
|
953 i++; |
|
|
954 |
|
|
955 result.append (temp); |
|
|
956 |
|
|
957 break; |
|
|
958 } |
|
|
959 } |
|
|
960 } |
|
|
961 else |
|
|
962 result += c; |
|
|
963 } |
|
|
964 |
|
|
965 return result; |
|
|
966 } |
|
|
967 |
|
|
968 // Return the octal number parsed from STRING, or -1 to indicate that |
|
|
969 // the string contained a bad number. |
|
|
970 |
|
|
971 int |
|
3504
|
972 command_editor::read_octal (const std::string& s) |
|
2926
|
973 { |
|
|
974 int result = 0; |
|
|
975 int digits = 0; |
|
|
976 |
|
|
977 size_t i = 0; |
|
|
978 size_t slen = s.length (); |
|
|
979 |
|
|
980 while (i < slen && s[i] >= '0' && s[i] < '8') |
|
|
981 { |
|
|
982 digits++; |
|
|
983 result = (result * 8) + s[i] - '0'; |
|
|
984 i++; |
|
|
985 } |
|
|
986 |
|
|
987 if (! digits || result > 0777 || i < slen) |
|
|
988 result = -1; |
|
|
989 |
|
|
990 return result; |
|
|
991 } |
|
|
992 |
|
|
993 void |
|
|
994 command_editor::error (int err_num) |
|
|
995 { |
|
2941
|
996 current_liboctave_error_handler ("%s", strerror (err_num)); |
|
2926
|
997 } |
|
|
998 |
|
|
999 void |
|
3504
|
1000 command_editor::error (const std::string& s) |
|
2926
|
1001 { |
|
2941
|
1002 current_liboctave_error_handler ("%s", s.c_str ()); |
|
2926
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1003 } |
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1004 |
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1005 /* |
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1006 ;;; Local Variables: *** |
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1007 ;;; mode: C++ *** |
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1008 ;;; End: *** |
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1009 */ |
