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1 /* |
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2 |
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3 Copyright (C) 2000 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 #if defined (USE_READLINE) |
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28 |
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29 #include <stdio.h> |
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30 #include <stdlib.h> |
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31 |
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32 #include <readline/readline.h> |
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33 |
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34 #include "oct-rl-edit.h" |
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35 |
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36 #define OCTAVE_RL_SAVE_STRING(ss, s) \ |
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37 static char *ss = 0; \ |
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38 \ |
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39 if (ss) \ |
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40 { \ |
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41 free (ss); \ |
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42 ss = 0; \ |
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43 } \ |
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44 \ |
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45 ss = malloc (strlen (s) + 1); \ |
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46 \ |
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47 strcpy (ss, s) |
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48 |
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49 int |
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50 octave_rl_screen_height (void) |
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51 { |
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52 int rows, cols; |
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53 rl_get_screen_size (&rows, &cols); |
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54 return rows; |
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55 } |
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56 |
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57 int |
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58 octave_rl_screen_width (void) |
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59 { |
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60 int rows, cols; |
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61 rl_get_screen_size (&rows, &cols); |
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62 return cols; |
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63 } |
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64 |
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65 void |
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66 octave_rl_enable_paren_matching (int val) |
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67 { |
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68 rl_variable_bind ("blink-matching-paren", val ? "1" : "0"); |
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69 } |
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70 |
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71 /* It would be much simpler if we could just call _rl_clear_screen to |
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72 only clear the screen, but it is not a public function, and on some |
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73 systems, it is not exported from shared library versions of |
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74 readline, so we can't use it. |
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75 |
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76 Instead, temporarily redefine the redisplay function to do nothing. |
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77 |
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78 XXX FIXME XXX -- It would be safer to do this when protected from |
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79 interrupts... */ |
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80 |
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81 static void |
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82 no_redisplay (void) |
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83 { |
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84 } |
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85 |
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86 void |
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87 octave_rl_clear_screen (void) |
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88 { |
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89 int ignore1 = 0; |
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90 int ignore2 = 0; |
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91 |
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92 rl_voidfunc_t *saved_redisplay_function = rl_redisplay_function; |
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93 rl_redisplay_function = no_redisplay; |
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94 |
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95 rl_clear_screen (ignore1, ignore2); |
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96 |
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97 rl_redisplay_function = saved_redisplay_function; |
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98 } |
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99 |
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100 void |
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101 octave_rl_resize_terminal (void) |
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102 { |
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103 rl_resize_terminal (); |
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104 } |
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105 |
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106 void |
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107 octave_rl_restore_terminal_state () |
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108 { |
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109 if (rl_deprep_term_function) |
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110 rl_deprep_term_function (); |
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111 } |
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112 |
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113 void |
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114 octave_rl_insert_text (const char *s) |
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115 { |
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116 rl_insert_text (s); |
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117 } |
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118 |
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119 void |
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120 octave_rl_newline (void) |
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121 { |
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122 rl_newline (1, '\n'); |
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123 } |
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124 |
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125 void |
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126 octave_rl_clear_undo_list (void) |
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127 { |
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128 if (rl_undo_list) |
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129 { |
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130 rl_free_undo_list (); |
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131 |
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132 rl_undo_list = 0; |
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133 } |
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134 } |
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135 |
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136 void |
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137 octave_rl_set_name (const char *n) |
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138 { |
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139 OCTAVE_RL_SAVE_STRING (nm, n); |
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140 |
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141 rl_readline_name = nm; |
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142 |
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143 /* Since we've already called rl_initialize, we need to re-read the |
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144 init file to take advantage of the conditional parsing feature |
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145 based on rl_readline_name; */ |
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146 |
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147 rl_re_read_init_file (0, 0); |
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148 } |
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149 |
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150 char * |
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151 octave_rl_readline (const char *prompt) |
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152 { |
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153 return readline (prompt); |
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154 } |
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155 |
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156 void |
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157 octave_rl_set_input_stream (FILE *f) |
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158 { |
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159 rl_instream = f; |
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160 } |
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161 |
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162 FILE * |
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163 octave_rl_get_input_stream (void) |
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164 { |
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165 return rl_instream; |
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166 } |
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167 |
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168 void |
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169 octave_rl_set_output_stream (FILE *f) |
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170 { |
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171 rl_outstream = f; |
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172 } |
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173 |
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174 FILE * |
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175 octave_rl_get_output_stream (void) |
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176 { |
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177 return rl_outstream; |
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178 } |
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179 |
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180 void |
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181 octave_rl_read_init_file (const char *f) |
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182 { |
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183 if (f && *f) |
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184 rl_read_init_file (f); |
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185 else |
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186 rl_re_read_init_file (0, 0); |
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187 } |
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188 |
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189 int |
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190 octave_rl_filename_completion_desired (int arg) |
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191 { |
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192 int retval = rl_filename_completion_desired; |
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193 rl_filename_completion_desired = arg; |
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194 return retval; |
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195 } |
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196 |
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197 char * |
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198 octave_rl_filename_completion_function (const char *text, int state) |
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199 { |
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200 return rl_filename_completion_function (text, state); |
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201 } |
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202 |
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203 void |
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204 octave_rl_set_basic_word_break_characters (const char *s) |
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205 { |
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206 OCTAVE_RL_SAVE_STRING (ss, s); |
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207 |
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208 rl_basic_word_break_characters = ss; |
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209 } |
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210 |
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211 void |
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212 octave_rl_set_completer_word_break_characters (const char *s) |
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213 { |
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214 OCTAVE_RL_SAVE_STRING (ss, s); |
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215 |
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216 rl_completer_word_break_characters = ss; |
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217 } |
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218 |
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219 void |
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220 octave_rl_set_basic_quote_characters (const char *s) |
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221 { |
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222 OCTAVE_RL_SAVE_STRING (ss, s); |
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223 |
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224 rl_basic_quote_characters = ss; |
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225 } |
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226 |
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227 void |
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228 octave_rl_set_completion_append_character (char c) |
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229 { |
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230 rl_completion_append_character = c; |
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231 } |
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232 |
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233 void |
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234 octave_rl_set_completion_function (rl_attempted_completion_fcn_ptr f) |
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235 { |
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236 rl_attempted_completion_function = f; |
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237 } |
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238 |
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239 void |
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240 octave_rl_set_startup_hook (rl_startup_hook_fcn_ptr f) |
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241 { |
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242 rl_startup_hook = f; |
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243 } |
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244 |
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245 rl_startup_hook_fcn_ptr |
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246 octave_rl_get_startup_hook (void) |
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247 { |
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248 return rl_startup_hook; |
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249 } |
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250 |
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251 void |
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252 octave_rl_set_event_hook (rl_event_hook_fcn_ptr f) |
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253 { |
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254 rl_event_hook = f; |
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255 } |
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256 |
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257 rl_event_hook_fcn_ptr |
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258 octave_rl_get_event_hook (void) |
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259 { |
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260 return rl_event_hook; |
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261 } |
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262 |
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263 char ** |
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264 octave_rl_completion_matches (const char *text, rl_completer_fcn_ptr f) |
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265 { |
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266 return rl_completion_matches (text, f); |
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267 } |
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268 |
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269 char |
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270 octave_rl_prompt_start_ignore (void) |
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271 { |
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272 return RL_PROMPT_START_IGNORE; |
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273 } |
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274 |
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275 char |
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276 octave_rl_prompt_end_ignore (void) |
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277 { |
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278 return RL_PROMPT_END_IGNORE; |
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279 } |
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280 |
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281 void |
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282 octave_rl_add_defun (const char *name, rl_fcn_ptr f, char key) |
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283 { |
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284 rl_add_defun (name, f, key); |
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285 } |
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286 |
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287 void |
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288 octave_rl_set_terminal_name (const char *term) |
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289 { |
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290 rl_terminal_name = (char *) term; |
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291 } |
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292 |
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293 void |
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294 octave_rl_initialize (void) |
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295 { |
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296 rl_initialize (); |
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297 } |
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298 |
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299 int |
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300 octave_rl_history_search_forward (int count, int ignore) |
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301 { |
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302 return rl_history_search_forward (count, ignore); |
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303 } |
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304 |
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305 int |
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306 octave_rl_history_search_backward (int count, int ignore) |
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307 { |
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308 return rl_history_search_backward (count, ignore); |
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309 } |
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310 |
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311 char |
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312 octave_rl_ctrl (char c) |
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313 { |
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314 return CTRL (c); |
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315 } |
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316 |
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317 char |
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318 octave_rl_meta (char c) |
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319 { |
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320 return META (c); |
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321 } |
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322 |
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323 #endif |
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324 |
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325 /* |
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326 ;;; Local Variables: *** |
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327 ;;; mode: C++ *** |
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328 ;;; End: *** |
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329 */ |
