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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <cstdlib> |
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29 #include <cstring> |
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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 "quit.h" |
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41 |
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42 #include "cmd-edit.h" |
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43 #include "cmd-hist.h" |
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44 #include "file-ops.h" |
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45 #include "lo-error.h" |
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46 #include "lo-utils.h" |
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47 #include "oct-env.h" |
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48 #include "oct-time.h" |
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49 |
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50 command_editor *command_editor::instance = 0; |
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51 |
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52 #if defined (USE_READLINE) |
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53 |
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54 #include <cstdio> |
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55 #include <cstdlib> |
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56 |
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57 #include "oct-rl-edit.h" |
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58 |
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59 class |
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60 gnu_readline : public command_editor |
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61 { |
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62 public: |
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63 |
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64 typedef command_editor::startup_hook_fcn startup_hook_fcn; |
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65 |
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66 typedef command_editor::event_hook_fcn event_hook_hook_fcn; |
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67 |
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68 typedef command_editor::completion_fcn completion_fcn; |
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69 |
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70 gnu_readline (void); |
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71 |
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72 ~gnu_readline (void) { } |
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73 |
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74 void do_set_name (const std::string& n); |
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75 |
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76 std::string do_readline (const std::string& prompt, bool& eof); |
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77 |
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78 void do_set_input_stream (FILE *f); |
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79 |
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80 FILE *do_get_input_stream (void); |
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81 |
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82 void do_set_output_stream (FILE *f); |
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83 |
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84 FILE *do_get_output_stream (void); |
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85 |
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86 int do_terminal_rows (void); |
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87 |
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88 int do_terminal_cols (void); |
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89 |
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90 void do_clear_screen (void); |
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91 |
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92 void do_resize_terminal (void); |
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93 |
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94 std::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_word_break_characters (const std::string& s); |
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101 |
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102 void do_set_completer_word_break_characters (const std::string& s); |
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103 |
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104 void do_set_basic_quote_characters (const std::string& s); |
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105 |
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106 void do_set_completion_append_character (char c); |
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107 |
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108 void do_set_completion_function (completion_fcn f); |
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109 |
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110 completion_fcn do_get_completion_function (void) const; |
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111 |
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112 string_vector |
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113 do_generate_filename_completions (const std::string& text); |
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114 |
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115 void do_insert_text (const std::string& text); |
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116 |
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117 void do_newline (void); |
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118 |
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119 void do_clear_undo_list (void); |
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120 |
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121 void do_set_startup_hook (startup_hook_fcn f); |
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122 |
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123 void do_restore_startup_hook (void); |
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124 |
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125 void do_set_event_hook (event_hook_fcn f); |
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126 |
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127 void do_restore_event_hook (void); |
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128 |
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129 void do_read_init_file (const std::string& file); |
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130 |
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131 bool do_filename_completion_desired (bool); |
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132 |
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133 static int operate_and_get_next (int, int); |
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134 |
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135 static int history_search_backward (int, int); |
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136 |
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137 static int history_search_forward (int, int); |
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138 |
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139 private: |
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140 |
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141 startup_hook_fcn previous_startup_hook; |
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142 |
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143 event_hook_fcn previous_event_hook; |
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144 |
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145 completion_fcn completion_function; |
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146 |
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147 static char *command_generator (const char *text, int state); |
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148 |
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149 static char **command_completer (const char *text, int start, int end); |
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150 }; |
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151 |
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152 gnu_readline::gnu_readline () |
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153 : command_editor (), previous_startup_hook (0), |
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154 previous_event_hook (0), completion_function (0) |
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155 { |
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156 // FIXME -- need interface to rl_add_defun, rl_initialize, and |
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157 // a function to set rl_terminal_name |
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158 |
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159 std::string term = octave_env::getenv ("TERM"); |
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160 |
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161 octave_rl_set_terminal_name (term.c_str ()); |
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162 |
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163 octave_rl_initialize (); |
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164 |
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165 do_blink_matching_paren (true); |
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166 |
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167 // Bind operate-and-get-next. |
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168 |
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169 octave_rl_add_defun ("operate-and-get-next", |
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170 gnu_readline::operate_and_get_next, |
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171 octave_rl_ctrl ('O')); |
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172 |
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173 // And the history search functions. |
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174 |
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175 octave_rl_add_defun ("history-search-backward", |
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176 gnu_readline::history_search_backward, |
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177 octave_rl_meta ('P')); |
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178 |
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179 octave_rl_add_defun ("history-search-forward", |
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180 gnu_readline::history_search_forward, |
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181 octave_rl_meta ('N')); |
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182 } |
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183 |
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184 |
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185 |
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186 void |
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187 gnu_readline::do_set_name (const std::string& nm) |
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188 { |
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189 ::octave_rl_set_name (nm.c_str ()); |
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190 } |
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191 |
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192 std::string |
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193 gnu_readline::do_readline (const std::string& prompt, bool& eof) |
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194 { |
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195 std::string retval; |
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196 |
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197 eof = false; |
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198 |
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199 char *line = 0; |
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200 |
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201 const char *p = prompt.c_str (); |
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202 |
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203 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
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204 |
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205 line = ::octave_rl_readline (p); |
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206 |
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207 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
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208 |
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209 if (line) |
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210 { |
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211 retval = line; |
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212 |
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213 free (line); |
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214 } |
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215 else |
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216 eof = true; |
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217 |
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218 return retval; |
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219 } |
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220 |
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221 void |
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222 gnu_readline::do_set_input_stream (FILE *f) |
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223 { |
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224 ::octave_rl_set_input_stream (f); |
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225 } |
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226 |
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227 FILE * |
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228 gnu_readline::do_get_input_stream (void) |
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229 { |
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230 return ::octave_rl_get_input_stream (); |
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231 } |
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232 |
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233 void |
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234 gnu_readline::do_set_output_stream (FILE *f) |
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235 { |
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236 ::octave_rl_set_output_stream (f); |
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237 } |
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238 |
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239 FILE * |
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240 gnu_readline::do_get_output_stream (void) |
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241 { |
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242 return ::octave_rl_get_output_stream (); |
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243 } |
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244 |
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245 // GNU readline handles SIGWINCH, so these values have a good chance |
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246 // of being correct even if the window changes size (they may be |
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247 // wrong if, for example, the luser changes the window size while the |
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248 // pager is running, and the signal is handled by the pager instead of |
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249 // us. |
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250 |
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251 int |
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252 gnu_readline::do_terminal_rows (void) |
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253 { |
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254 int sh = ::octave_rl_screen_height (); |
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255 |
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256 return sh > 0 ? sh : 24; |
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257 } |
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258 |
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259 int |
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260 gnu_readline::do_terminal_cols (void) |
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261 { |
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262 int sw = ::octave_rl_screen_width (); |
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263 |
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264 return sw > 0 ? sw : 80; |
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265 } |
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266 |
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267 void |
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268 gnu_readline::do_clear_screen (void) |
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269 { |
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270 ::octave_rl_clear_screen (); |
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271 } |
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272 |
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273 void |
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274 gnu_readline::do_resize_terminal (void) |
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275 { |
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276 ::octave_rl_resize_terminal (); |
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277 } |
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278 |
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279 std::string |
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280 gnu_readline::newline_chars (void) |
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281 { |
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282 return "\r\n"; |
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283 } |
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284 |
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285 void |
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286 gnu_readline::do_restore_terminal_state (void) |
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287 { |
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288 ::octave_rl_restore_terminal_state (); |
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289 } |
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290 |
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291 void |
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292 gnu_readline::do_blink_matching_paren (bool flag) |
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293 { |
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294 ::octave_rl_enable_paren_matching (flag ? 1 : 0); |
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295 } |
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296 |
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297 void |
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298 gnu_readline::do_set_basic_word_break_characters (const std::string& s) |
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299 { |
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300 ::octave_rl_set_basic_word_break_characters (s.c_str ()); |
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301 } |
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302 |
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303 void |
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304 gnu_readline::do_set_completer_word_break_characters (const std::string& s) |
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305 { |
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306 ::octave_rl_set_completer_word_break_characters (s.c_str ()); |
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307 } |
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308 |
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309 void |
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310 gnu_readline::do_set_basic_quote_characters (const std::string& s) |
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311 { |
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312 ::octave_rl_set_basic_quote_characters (s.c_str ()); |
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313 } |
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314 |
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315 void |
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316 gnu_readline::do_set_completion_append_character (char c) |
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317 { |
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318 ::octave_rl_set_completion_append_character (c); |
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319 } |
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320 |
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321 void |
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322 gnu_readline::do_set_completion_function (completion_fcn f) |
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323 { |
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324 completion_function = f; |
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325 |
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326 rl_attempted_completion_fcn_ptr fp |
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327 = f ? gnu_readline::command_completer : 0; |
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328 |
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329 ::octave_rl_set_completion_function (fp); |
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330 } |
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331 |
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332 gnu_readline::completion_fcn |
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333 gnu_readline::do_get_completion_function (void) const |
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334 { |
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335 return completion_function; |
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336 } |
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337 |
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338 string_vector |
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339 gnu_readline::do_generate_filename_completions (const std::string& text) |
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340 { |
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341 string_vector retval; |
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342 |
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343 int n = 0; |
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344 int count = 0; |
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345 |
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346 char *fn = 0; |
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347 |
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348 while (1) |
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349 { |
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350 fn = ::octave_rl_filename_completion_function (text.c_str (), count); |
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351 |
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352 if (fn) |
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353 { |
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354 if (count == n) |
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355 { |
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356 // Famous last words: Most large directories will not |
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357 // have more than a few hundred files, so we should not |
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358 // resize too many times even if the growth is linear... |
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359 |
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360 n += 100; |
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361 retval.resize (n); |
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362 } |
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363 |
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364 retval[count++] = fn; |
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365 |
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366 free (fn); |
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367 } |
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368 else |
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369 break; |
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370 } |
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371 |
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372 retval.resize (count); |
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373 |
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374 return retval; |
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375 } |
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376 |
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377 void |
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378 gnu_readline::do_insert_text (const std::string& text) |
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379 { |
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380 ::octave_rl_insert_text (text.c_str ()); |
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381 } |
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382 |
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383 void |
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384 gnu_readline::do_newline (void) |
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385 { |
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386 ::octave_rl_newline (); |
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387 } |
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388 |
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389 void |
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390 gnu_readline::do_clear_undo_list () |
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391 { |
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392 ::octave_rl_clear_undo_list (); |
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393 } |
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394 |
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395 void |
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396 gnu_readline::do_set_startup_hook (startup_hook_fcn f) |
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397 { |
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398 previous_startup_hook = ::octave_rl_get_startup_hook (); |
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399 |
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400 ::octave_rl_set_startup_hook (f); |
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401 } |
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402 |
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403 void |
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404 gnu_readline::do_restore_startup_hook (void) |
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405 { |
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406 ::octave_rl_set_startup_hook (previous_startup_hook); |
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407 } |
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408 |
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409 void |
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410 gnu_readline::do_set_event_hook (event_hook_fcn f) |
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411 { |
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412 previous_event_hook = octave_rl_get_event_hook (); |
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413 |
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414 ::octave_rl_set_event_hook (f); |
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415 } |
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416 |
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417 void |
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418 gnu_readline::do_restore_event_hook (void) |
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419 { |
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420 ::octave_rl_set_event_hook (previous_event_hook); |
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421 } |
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422 |
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423 void |
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424 gnu_readline::do_read_init_file (const std::string& file) |
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425 { |
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426 ::octave_rl_read_init_file (file.c_str ()); |
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427 } |
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428 |
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4143
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429 bool |
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430 gnu_readline::do_filename_completion_desired (bool arg) |
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431 { |
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432 return ::octave_rl_filename_completion_desired (arg); |
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433 } |
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434 |
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435 int |
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436 gnu_readline::operate_and_get_next (int /* count */, int /* c */) |
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437 { |
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438 // Accept the current line. |
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439 |
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440 command_editor::newline (); |
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441 |
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442 // Find the current line, and find the next line to use. |
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443 |
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444 int x_where = command_history::where (); |
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445 |
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446 int x_length = command_history::length (); |
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447 |
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448 if ((command_history::is_stifled () |
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449 && (x_length >= command_history::max_input_history ())) |
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450 || (x_where >= x_length - 1)) |
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451 command_history::set_mark (x_where); |
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452 else |
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453 command_history::set_mark (x_where + 1); |
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454 |
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455 command_editor::set_startup_hook (command_history::goto_mark); |
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456 |
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457 return 0; |
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458 } |
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459 |
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3951
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460 int |
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461 gnu_readline::history_search_backward (int count, int c) |
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462 { |
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463 return octave_rl_history_search_backward (count, c); |
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464 } |
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465 |
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466 int |
|
|
467 gnu_readline::history_search_forward (int count, int c) |
|
|
468 { |
|
|
469 return octave_rl_history_search_forward (count, c); |
|
|
470 } |
|
|
471 |
|
2941
|
472 char * |
|
|
473 gnu_readline::command_generator (const char *text, int state) |
|
|
474 { |
|
|
475 char *retval = 0; |
|
|
476 |
|
|
477 completion_fcn f = command_editor::get_completion_function (); |
|
|
478 |
|
3504
|
479 std::string tmp = f (text, state); |
|
2941
|
480 |
|
|
481 size_t len = tmp.length (); |
|
|
482 |
|
|
483 if (len > 0) |
|
|
484 { |
|
|
485 retval = static_cast<char *> (malloc (len+1)); |
|
|
486 |
|
|
487 strcpy (retval, tmp.c_str ()); |
|
|
488 } |
|
|
489 |
|
|
490 return retval; |
|
|
491 } |
|
|
492 |
|
|
493 char ** |
|
3519
|
494 gnu_readline::command_completer (const char *text, int, int) |
|
2941
|
495 { |
|
|
496 char **matches = 0; |
|
3519
|
497 matches |
|
|
498 = ::octave_rl_completion_matches (text, gnu_readline::command_generator); |
|
2941
|
499 return matches; |
|
|
500 } |
|
|
501 |
|
2926
|
502 #endif |
|
|
503 |
|
|
504 class |
|
|
505 default_command_editor : public command_editor |
|
|
506 { |
|
|
507 public: |
|
|
508 |
|
|
509 default_command_editor (void) |
|
|
510 : command_editor (), input_stream (stdin), output_stream (stdout) { } |
|
|
511 |
|
|
512 ~default_command_editor (void) { } |
|
|
513 |
|
3504
|
514 std::string do_readline (const std::string& prompt, bool& eof); |
|
2926
|
515 |
|
|
516 void do_set_input_stream (FILE *f); |
|
|
517 |
|
|
518 FILE *do_get_input_stream (void); |
|
|
519 |
|
|
520 void do_set_output_stream (FILE *f); |
|
|
521 |
|
|
522 FILE *do_get_output_stream (void); |
|
|
523 |
|
4604
|
524 string_vector do_generate_filename_completions (const std::string& text); |
|
|
525 |
|
3504
|
526 void do_insert_text (const std::string&); |
|
2926
|
527 |
|
|
528 void do_newline (void); |
|
|
529 |
|
|
530 private: |
|
|
531 |
|
|
532 FILE *input_stream; |
|
|
533 |
|
|
534 FILE *output_stream; |
|
|
535 }; |
|
|
536 |
|
3504
|
537 std::string |
|
|
538 default_command_editor::do_readline (const std::string& prompt, bool& eof) |
|
2926
|
539 { |
|
|
540 fprintf (output_stream, prompt.c_str ()); |
|
|
541 fflush (output_stream); |
|
|
542 |
|
4527
|
543 return octave_fgetl (input_stream, eof); |
|
2926
|
544 } |
|
|
545 |
|
|
546 void |
|
|
547 default_command_editor::do_set_input_stream (FILE *f) |
|
|
548 { |
|
|
549 input_stream = f; |
|
|
550 } |
|
|
551 |
|
|
552 FILE * |
|
|
553 default_command_editor::do_get_input_stream (void) |
|
|
554 { |
|
|
555 return input_stream; |
|
|
556 } |
|
|
557 |
|
|
558 void |
|
|
559 default_command_editor::do_set_output_stream (FILE *f) |
|
|
560 { |
|
|
561 output_stream = f; |
|
|
562 } |
|
|
563 |
|
|
564 FILE * |
|
|
565 default_command_editor::do_get_output_stream (void) |
|
|
566 { |
|
|
567 return output_stream; |
|
|
568 } |
|
|
569 |
|
4604
|
570 string_vector |
|
4663
|
571 default_command_editor::do_generate_filename_completions (const std::string&) |
|
4604
|
572 { |
|
5775
|
573 // FIXME |
|
4604
|
574 return string_vector (); |
|
|
575 } |
|
|
576 |
|
2926
|
577 void |
|
3504
|
578 default_command_editor::do_insert_text (const std::string&) |
|
2926
|
579 { |
|
5775
|
580 // FIXME |
|
2926
|
581 } |
|
|
582 |
|
|
583 void |
|
|
584 default_command_editor::do_newline (void) |
|
|
585 { |
|
5775
|
586 // FIXME |
|
2926
|
587 } |
|
|
588 |
|
|
589 bool |
|
|
590 command_editor::instance_ok (void) |
|
|
591 { |
|
|
592 bool retval = true; |
|
|
593 |
|
|
594 if (! instance) |
|
|
595 make_command_editor (); |
|
|
596 |
|
|
597 if (! instance) |
|
|
598 { |
|
2941
|
599 current_liboctave_error_handler |
|
2926
|
600 ("unable to create command history object!"); |
|
|
601 |
|
|
602 retval = false; |
|
|
603 } |
|
|
604 |
|
|
605 return retval; |
|
|
606 } |
|
|
607 |
|
|
608 void |
|
|
609 command_editor::make_command_editor (void) |
|
|
610 { |
|
|
611 #if defined (USE_READLINE) |
|
|
612 instance = new gnu_readline (); |
|
|
613 #else |
|
|
614 instance = new default_command_editor (); |
|
|
615 #endif |
|
|
616 } |
|
|
617 |
|
|
618 void |
|
3504
|
619 command_editor::set_name (const std::string& n) |
|
2926
|
620 { |
|
|
621 if (instance_ok ()) |
|
|
622 instance->do_set_name (n); |
|
|
623 } |
|
|
624 |
|
3504
|
625 std::string |
|
|
626 command_editor::readline (const std::string& prompt) |
|
2926
|
627 { |
|
3219
|
628 bool eof; |
|
|
629 |
|
|
630 return readline (prompt, eof); |
|
|
631 } |
|
|
632 |
|
3504
|
633 std::string |
|
|
634 command_editor::readline (const std::string& prompt, bool& eof) |
|
3219
|
635 { |
|
2926
|
636 return (instance_ok ()) |
|
3504
|
637 ? instance->do_readline (prompt, eof) : std::string (); |
|
2926
|
638 } |
|
|
639 |
|
|
640 void |
|
|
641 command_editor::set_input_stream (FILE *f) |
|
|
642 { |
|
|
643 if (instance_ok ()) |
|
|
644 instance->do_set_input_stream (f); |
|
|
645 } |
|
|
646 |
|
|
647 FILE * |
|
|
648 command_editor::get_input_stream (void) |
|
|
649 { |
|
|
650 return (instance_ok ()) |
|
|
651 ? instance->do_get_input_stream () : 0; |
|
|
652 } |
|
|
653 |
|
|
654 void |
|
|
655 command_editor::set_output_stream (FILE *f) |
|
|
656 { |
|
|
657 if (instance_ok ()) |
|
|
658 instance->do_set_output_stream (f); |
|
|
659 } |
|
|
660 |
|
|
661 FILE * |
|
|
662 command_editor::get_output_stream (void) |
|
|
663 { |
|
|
664 return (instance_ok ()) |
|
|
665 ? instance->do_get_output_stream () : 0; |
|
|
666 } |
|
|
667 |
|
|
668 int |
|
|
669 command_editor::terminal_rows (void) |
|
|
670 { |
|
|
671 return (instance_ok ()) |
|
|
672 ? instance->do_terminal_rows () : -1; |
|
|
673 } |
|
|
674 |
|
|
675 int |
|
|
676 command_editor::terminal_cols (void) |
|
|
677 { |
|
|
678 return (instance_ok ()) |
|
|
679 ? instance->do_terminal_cols () : -1; |
|
|
680 } |
|
|
681 |
|
|
682 void |
|
|
683 command_editor::clear_screen (void) |
|
|
684 { |
|
|
685 if (instance_ok ()) |
|
|
686 instance->do_clear_screen (); |
|
|
687 } |
|
|
688 |
|
3281
|
689 void |
|
|
690 command_editor::resize_terminal (void) |
|
|
691 { |
|
|
692 if (instance_ok ()) |
|
|
693 instance->do_resize_terminal (); |
|
|
694 } |
|
|
695 |
|
3504
|
696 std::string |
|
|
697 command_editor::decode_prompt_string (const std::string& s) |
|
2926
|
698 { |
|
|
699 return (instance_ok ()) |
|
3504
|
700 ? instance->do_decode_prompt_string (s) : std::string (); |
|
2926
|
701 } |
|
|
702 |
|
|
703 int |
|
|
704 command_editor::current_command_number (void) |
|
|
705 { |
|
|
706 return (instance_ok ()) |
|
|
707 ? instance->command_number : 0; |
|
|
708 } |
|
|
709 |
|
|
710 void |
|
|
711 command_editor::reset_current_command_number (int n) |
|
|
712 { |
|
|
713 if (instance_ok ()) |
|
|
714 instance->command_number = n; |
|
|
715 } |
|
|
716 |
|
|
717 void |
|
2967
|
718 command_editor::increment_current_command_number (void) |
|
|
719 { |
|
|
720 if (instance_ok ()) |
|
|
721 instance->command_number++; |
|
|
722 } |
|
|
723 |
|
|
724 void |
|
2926
|
725 command_editor::restore_terminal_state (void) |
|
|
726 { |
|
|
727 if (instance_ok ()) |
|
|
728 instance->do_restore_terminal_state (); |
|
|
729 } |
|
|
730 |
|
|
731 void |
|
|
732 command_editor::blink_matching_paren (bool flag) |
|
|
733 { |
|
|
734 if (instance_ok ()) |
|
|
735 instance->do_blink_matching_paren (flag); |
|
|
736 } |
|
|
737 |
|
|
738 void |
|
3933
|
739 command_editor::set_basic_word_break_characters (const std::string& s) |
|
|
740 { |
|
|
741 if (instance_ok ()) |
|
|
742 instance->do_set_basic_word_break_characters (s); |
|
|
743 } |
|
|
744 |
|
|
745 void |
|
|
746 command_editor::set_completer_word_break_characters (const std::string& s) |
|
|
747 { |
|
|
748 if (instance_ok ()) |
|
|
749 instance->do_set_completer_word_break_characters (s); |
|
|
750 } |
|
|
751 |
|
|
752 void |
|
3504
|
753 command_editor::set_basic_quote_characters (const std::string& s) |
|
2926
|
754 { |
|
|
755 if (instance_ok ()) |
|
3004
|
756 instance->do_set_basic_quote_characters (s); |
|
2926
|
757 } |
|
|
758 |
|
|
759 void |
|
|
760 command_editor::set_completion_append_character (char c) |
|
|
761 { |
|
|
762 if (instance_ok ()) |
|
|
763 instance->do_set_completion_append_character (c); |
|
|
764 } |
|
|
765 |
|
|
766 void |
|
2941
|
767 command_editor::set_completion_function (completion_fcn f) |
|
2926
|
768 { |
|
|
769 if (instance_ok ()) |
|
2941
|
770 instance->do_set_completion_function (f); |
|
|
771 } |
|
|
772 |
|
|
773 command_editor::completion_fcn |
|
|
774 command_editor::get_completion_function (void) |
|
|
775 { |
|
|
776 return (instance_ok ()) |
|
|
777 ? instance->do_get_completion_function () : 0; |
|
2926
|
778 } |
|
|
779 |
|
4604
|
780 string_vector |
|
|
781 command_editor::generate_filename_completions (const std::string& text) |
|
|
782 { |
|
|
783 return (instance_ok ()) |
|
|
784 ? instance->do_generate_filename_completions (text) : string_vector (); |
|
|
785 } |
|
|
786 |
|
2926
|
787 void |
|
3504
|
788 command_editor::insert_text (const std::string& text) |
|
2926
|
789 { |
|
|
790 if (instance_ok ()) |
|
|
791 instance->do_insert_text (text); |
|
|
792 } |
|
|
793 |
|
|
794 void |
|
|
795 command_editor::newline (void) |
|
|
796 { |
|
|
797 if (instance_ok ()) |
|
|
798 instance->do_newline (); |
|
|
799 } |
|
|
800 |
|
|
801 void |
|
|
802 command_editor::clear_undo_list (void) |
|
|
803 { |
|
|
804 if (instance_ok ()) |
|
|
805 instance->do_clear_undo_list (); |
|
|
806 } |
|
|
807 |
|
|
808 void |
|
3519
|
809 command_editor::set_startup_hook (startup_hook_fcn f) |
|
2926
|
810 { |
|
|
811 if (instance_ok ()) |
|
|
812 instance->do_set_startup_hook (f); |
|
|
813 } |
|
|
814 |
|
|
815 void |
|
|
816 command_editor::restore_startup_hook (void) |
|
|
817 { |
|
|
818 if (instance_ok ()) |
|
|
819 instance->do_restore_startup_hook (); |
|
|
820 } |
|
|
821 |
|
3189
|
822 void |
|
3519
|
823 command_editor::set_event_hook (event_hook_fcn f) |
|
3215
|
824 { |
|
|
825 if (instance_ok ()) |
|
|
826 instance->do_set_event_hook (f); |
|
|
827 } |
|
|
828 |
|
|
829 void |
|
|
830 command_editor::restore_event_hook (void) |
|
|
831 { |
|
|
832 if (instance_ok ()) |
|
|
833 instance->do_restore_event_hook (); |
|
|
834 } |
|
|
835 |
|
|
836 void |
|
5872
|
837 command_editor::read_init_file (const std::string& file_arg) |
|
3189
|
838 { |
|
|
839 if (instance_ok ()) |
|
5872
|
840 { |
|
|
841 std::string file = file_ops::tilde_expand (file_arg); |
|
|
842 |
|
|
843 instance->do_read_init_file (file); |
|
|
844 } |
|
3189
|
845 } |
|
|
846 |
|
4143
|
847 bool |
|
|
848 command_editor::filename_completion_desired (bool arg) |
|
|
849 { |
|
|
850 return (instance_ok ()) |
|
|
851 ? instance->do_filename_completion_desired (arg) : false; |
|
|
852 } |
|
|
853 |
|
2926
|
854 // Return a string which will be printed as a prompt. The string may |
|
|
855 // contain special characters which are decoded as follows: |
|
|
856 // |
|
5442
|
857 // \a bell (ascii 07) |
|
2926
|
858 // \d the date |
|
5442
|
859 // \e escape (ascii 033) |
|
|
860 // \h the hostname up to the first `.' |
|
|
861 // \H the hostname |
|
2926
|
862 // \n CRLF |
|
5442
|
863 // \r CR |
|
2926
|
864 // \s the name of the shell (program) |
|
5442
|
865 // \t the time |
|
|
866 // \T the time in 12-hour hh:mm:ss format |
|
|
867 // \@ the time in 12-hour hh:mm am/pm format |
|
|
868 // \A the time in 24-hour hh:mm format |
|
|
869 // \u your username |
|
2926
|
870 // \w the current working directory |
|
|
871 // \W the last element of PWD |
|
5442
|
872 // \! the history number of this command |
|
2926
|
873 // \# the command number of this command |
|
|
874 // \$ a $ or a # if you are root |
|
5442
|
875 // \nnn character code nnn in octal |
|
2926
|
876 // \\ a backslash |
|
5442
|
877 // \[ begin a sequence of non-printing chars |
|
|
878 // \] end a sequence of non-printing chars |
|
2926
|
879 |
|
3504
|
880 std::string |
|
|
881 command_editor::do_decode_prompt_string (const std::string& s) |
|
2926
|
882 { |
|
3504
|
883 std::string result; |
|
|
884 std::string temp; |
|
2926
|
885 size_t i = 0; |
|
|
886 size_t slen = s.length (); |
|
|
887 int c; |
|
|
888 |
|
|
889 while (i < slen) |
|
|
890 { |
|
|
891 c = s[i]; |
|
|
892 |
|
|
893 i++; |
|
|
894 |
|
|
895 if (c == '\\') |
|
|
896 { |
|
|
897 c = s[i]; |
|
|
898 |
|
|
899 switch (c) |
|
|
900 { |
|
|
901 case '0': |
|
|
902 case '1': |
|
|
903 case '2': |
|
|
904 case '3': |
|
|
905 case '4': |
|
|
906 case '5': |
|
|
907 case '6': |
|
|
908 case '7': |
|
|
909 // Maybe convert an octal number. |
|
|
910 { |
|
|
911 int n = read_octal (s.substr (i, 3)); |
|
|
912 |
|
|
913 temp = "\\"; |
|
|
914 |
|
|
915 if (n != -1) |
|
|
916 { |
|
|
917 i += 3; |
|
|
918 temp[0] = n; |
|
|
919 } |
|
|
920 |
|
|
921 c = 0; |
|
|
922 goto add_string; |
|
|
923 } |
|
5442
|
924 |
|
|
925 case 'a': |
|
|
926 { |
|
|
927 temp = '\a'; |
|
|
928 |
|
|
929 goto add_string; |
|
|
930 } |
|
|
931 |
|
|
932 case 'e': |
|
|
933 { |
|
|
934 temp = '\033'; |
|
|
935 |
|
|
936 goto add_string; |
|
|
937 } |
|
|
938 |
|
|
939 case 'r': |
|
|
940 { |
|
|
941 temp = '\r'; |
|
|
942 |
|
|
943 goto add_string; |
|
|
944 } |
|
|
945 |
|
|
946 case 'd': |
|
2926
|
947 case 't': |
|
5442
|
948 case 'T': |
|
|
949 case '@': |
|
|
950 case 'A': |
|
2926
|
951 // Make the current time/date into a string. |
|
|
952 { |
|
5442
|
953 octave_localtime now; |
|
2926
|
954 |
|
5442
|
955 if (c == 'd') |
|
|
956 temp = now.strftime ("%a %b %d"); |
|
|
957 else if (c == 't') |
|
|
958 temp = now.strftime ("%H:%M:%S"); |
|
|
959 else if (c == 'T') |
|
|
960 temp = now.strftime ("%I:%M:%S"); |
|
|
961 else if (c == '@') |
|
|
962 temp = now.strftime ("%I:%M %p"); |
|
|
963 else if (c == 'A') |
|
|
964 temp = now.strftime ("%H:%M"); |
|
2926
|
965 |
|
|
966 goto add_string; |
|
|
967 } |
|
|
968 |
|
|
969 case 'n': |
|
|
970 { |
|
|
971 temp = newline_chars (); |
|
|
972 |
|
|
973 goto add_string; |
|
|
974 } |
|
|
975 |
|
|
976 case 's': |
|
|
977 { |
|
|
978 temp = octave_env::get_program_name (); |
|
|
979 temp = octave_env::base_pathname (temp); |
|
|
980 |
|
|
981 goto add_string; |
|
|
982 } |
|
5442
|
983 |
|
2926
|
984 case 'w': |
|
|
985 case 'W': |
|
|
986 { |
|
|
987 temp = octave_env::getcwd (); |
|
|
988 |
|
5442
|
989 std::string home_dir = octave_env::get_home_directory (); |
|
|
990 |
|
|
991 if (c == 'W' && (home_dir.empty () || temp != home_dir)) |
|
2926
|
992 { |
|
5442
|
993 if (temp != "/" && temp != "//") |
|
|
994 { |
|
|
995 size_t pos = temp.rfind ('/'); |
|
2926
|
996 |
|
5442
|
997 if (pos != NPOS && pos != 0) |
|
|
998 temp = temp.substr (pos + 1); |
|
|
999 } |
|
2926
|
1000 } |
|
|
1001 else |
|
|
1002 temp = octave_env::polite_directory_format (temp); |
|
|
1003 |
|
|
1004 goto add_string; |
|
|
1005 } |
|
5442
|
1006 |
|
2926
|
1007 case 'u': |
|
|
1008 { |
|
|
1009 temp = octave_env::get_user_name (); |
|
|
1010 |
|
|
1011 goto add_string; |
|
|
1012 } |
|
|
1013 |
|
|
1014 case 'H': |
|
|
1015 { |
|
|
1016 temp = octave_env::get_host_name (); |
|
|
1017 |
|
|
1018 goto add_string; |
|
|
1019 } |
|
|
1020 |
|
|
1021 case 'h': |
|
|
1022 { |
|
|
1023 temp = octave_env::get_host_name (); |
|
|
1024 |
|
|
1025 size_t pos = temp.find ('.'); |
|
|
1026 |
|
|
1027 if (pos != NPOS) |
|
|
1028 temp.resize (pos); |
|
|
1029 |
|
|
1030 goto add_string; |
|
|
1031 } |
|
|
1032 |
|
|
1033 case '#': |
|
|
1034 { |
|
|
1035 char number_buffer[128]; |
|
|
1036 sprintf (number_buffer, "%d", command_number); |
|
|
1037 temp = number_buffer; |
|
|
1038 |
|
|
1039 goto add_string; |
|
|
1040 } |
|
|
1041 |
|
|
1042 case '!': |
|
|
1043 { |
|
|
1044 char number_buffer[128]; |
|
|
1045 int num = command_history::current_number (); |
|
|
1046 if (num > 0) |
|
|
1047 sprintf (number_buffer, "%d", num); |
|
|
1048 else |
|
|
1049 strcpy (number_buffer, "!"); |
|
|
1050 temp = number_buffer; |
|
|
1051 |
|
|
1052 goto add_string; |
|
|
1053 } |
|
|
1054 |
|
|
1055 case '$': |
|
|
1056 { |
|
4062
|
1057 #if defined (HAVE_GETEUID) |
|
2926
|
1058 temp = (::geteuid () == 0 ? "#" : "$"); |
|
4062
|
1059 #else |
|
|
1060 temp = "$"; |
|
|
1061 #endif |
|
2926
|
1062 |
|
|
1063 goto add_string; |
|
|
1064 } |
|
|
1065 |
|
|
1066 #if defined (USE_READLINE) |
|
|
1067 case '[': |
|
|
1068 case ']': |
|
|
1069 { |
|
|
1070 temp.resize (2); |
|
|
1071 |
|
|
1072 temp[0] = '\001'; |
|
|
1073 temp[1] = ((c == '[') |
|
3519
|
1074 ? ::octave_rl_prompt_start_ignore () |
|
|
1075 : ::octave_rl_prompt_end_ignore ()); |
|
2926
|
1076 |
|
|
1077 goto add_string; |
|
|
1078 } |
|
|
1079 #endif |
|
|
1080 |
|
|
1081 case '\\': |
|
|
1082 { |
|
|
1083 temp = "\\"; |
|
|
1084 |
|
|
1085 goto add_string; |
|
|
1086 } |
|
|
1087 |
|
|
1088 default: |
|
|
1089 { |
|
|
1090 temp = "\\ "; |
|
|
1091 temp[1] = c; |
|
|
1092 |
|
|
1093 goto add_string; |
|
|
1094 } |
|
|
1095 |
|
|
1096 add_string: |
|
|
1097 { |
|
|
1098 if (c) |
|
|
1099 i++; |
|
|
1100 |
|
|
1101 result.append (temp); |
|
|
1102 |
|
|
1103 break; |
|
|
1104 } |
|
|
1105 } |
|
|
1106 } |
|
|
1107 else |
|
|
1108 result += c; |
|
|
1109 } |
|
|
1110 |
|
|
1111 return result; |
|
|
1112 } |
|
|
1113 |
|
|
1114 // Return the octal number parsed from STRING, or -1 to indicate that |
|
|
1115 // the string contained a bad number. |
|
|
1116 |
|
|
1117 int |
|
3504
|
1118 command_editor::read_octal (const std::string& s) |
|
2926
|
1119 { |
|
|
1120 int result = 0; |
|
|
1121 int digits = 0; |
|
|
1122 |
|
|
1123 size_t i = 0; |
|
|
1124 size_t slen = s.length (); |
|
|
1125 |
|
|
1126 while (i < slen && s[i] >= '0' && s[i] < '8') |
|
|
1127 { |
|
|
1128 digits++; |
|
|
1129 result = (result * 8) + s[i] - '0'; |
|
|
1130 i++; |
|
|
1131 } |
|
|
1132 |
|
|
1133 if (! digits || result > 0777 || i < slen) |
|
|
1134 result = -1; |
|
|
1135 |
|
|
1136 return result; |
|
|
1137 } |
|
|
1138 |
|
|
1139 void |
|
|
1140 command_editor::error (int err_num) |
|
|
1141 { |
|
2941
|
1142 current_liboctave_error_handler ("%s", strerror (err_num)); |
|
2926
|
1143 } |
|
|
1144 |
|
|
1145 void |
|
3504
|
1146 command_editor::error (const std::string& s) |
|
2926
|
1147 { |
|
2941
|
1148 current_liboctave_error_handler ("%s", s.c_str ()); |
|
2926
|
1149 } |
|
|
1150 |
|
|
1151 /* |
|
|
1152 ;;; Local Variables: *** |
|
|
1153 ;;; mode: C++ *** |
|
|
1154 ;;; End: *** |
|
|
1155 */ |
