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