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