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