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