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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, 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 #if defined (USE_READLINE) |
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29 |
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30 #include <stdio.h> |
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31 #include <stdlib.h> |
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32 |
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33 #include <readline/readline.h> |
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34 |
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35 #include "oct-rl-edit.h" |
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36 |
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37 #define OCTAVE_RL_SAVE_STRING(ss, s) \ |
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38 static char *ss = 0; \ |
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39 \ |
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40 if (ss) \ |
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41 { \ |
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42 free (ss); \ |
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43 ss = 0; \ |
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44 } \ |
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45 \ |
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46 ss = malloc (strlen (s) + 1); \ |
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47 \ |
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48 strcpy (ss, s) |
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49 |
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50 int |
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51 octave_rl_screen_height (void) |
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52 { |
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53 int rows, cols; |
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54 rl_get_screen_size (&rows, &cols); |
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55 return rows; |
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56 } |
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57 |
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58 int |
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59 octave_rl_screen_width (void) |
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60 { |
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61 int rows, cols; |
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62 rl_get_screen_size (&rows, &cols); |
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63 return cols; |
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64 } |
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65 |
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66 void |
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67 octave_rl_enable_paren_matching (int val) |
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68 { |
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69 rl_variable_bind ("blink-matching-paren", val ? "1" : "0"); |
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70 } |
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71 |
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72 /* It would be much simpler if we could just call _rl_clear_screen to |
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73 only clear the screen, but it is not a public function, and on some |
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74 systems, it is not exported from shared library versions of |
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75 readline, so we can't use it. |
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76 |
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77 Instead, temporarily redefine the redisplay function to do nothing. |
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78 |
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79 XXX FIXME XXX -- It would be safer to do this when protected from |
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80 interrupts... */ |
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81 |
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82 static void |
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83 flush_stdout (void) |
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84 { |
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85 fflush (stdout); |
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86 } |
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87 |
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88 void |
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89 octave_rl_clear_screen (void) |
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90 { |
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91 int ignore1 = 0; |
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92 int ignore2 = 0; |
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93 |
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94 rl_voidfunc_t *saved_redisplay_function = rl_redisplay_function; |
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95 rl_redisplay_function = flush_stdout; |
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96 |
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97 rl_clear_screen (ignore1, ignore2); |
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98 |
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99 rl_redisplay_function = saved_redisplay_function; |
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100 } |
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101 |
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102 void |
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103 octave_rl_resize_terminal (void) |
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104 { |
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105 rl_resize_terminal (); |
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106 } |
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107 |
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108 void |
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109 octave_rl_restore_terminal_state () |
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110 { |
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111 if (rl_deprep_term_function) |
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112 rl_deprep_term_function (); |
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113 } |
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114 |
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115 void |
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116 octave_rl_insert_text (const char *s) |
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117 { |
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118 rl_insert_text (s); |
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119 } |
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120 |
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121 void |
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122 octave_rl_newline (void) |
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123 { |
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124 rl_newline (1, '\n'); |
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125 } |
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126 |
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127 void |
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128 octave_rl_clear_undo_list (void) |
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129 { |
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130 if (rl_undo_list) |
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131 { |
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132 rl_free_undo_list (); |
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133 |
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134 rl_undo_list = 0; |
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135 } |
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136 } |
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137 |
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138 void |
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139 octave_rl_set_name (const char *n) |
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140 { |
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141 OCTAVE_RL_SAVE_STRING (nm, n); |
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142 |
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143 rl_readline_name = nm; |
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144 |
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145 /* Since we've already called rl_initialize, we need to re-read the |
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146 init file to take advantage of the conditional parsing feature |
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147 based on rl_readline_name; */ |
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148 |
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149 rl_re_read_init_file (0, 0); |
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150 } |
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151 |
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152 char * |
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153 octave_rl_readline (const char *prompt) |
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154 { |
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155 return readline (prompt); |
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156 } |
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157 |
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158 void |
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159 octave_rl_set_input_stream (FILE *f) |
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160 { |
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161 rl_instream = f; |
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162 } |
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163 |
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164 FILE * |
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165 octave_rl_get_input_stream (void) |
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166 { |
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167 return rl_instream; |
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168 } |
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169 |
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170 void |
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171 octave_rl_set_output_stream (FILE *f) |
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172 { |
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173 rl_outstream = f; |
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174 } |
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175 |
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176 FILE * |
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177 octave_rl_get_output_stream (void) |
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178 { |
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179 return rl_outstream; |
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180 } |
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181 |
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182 void |
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183 octave_rl_read_init_file (const char *f) |
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184 { |
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185 if (f && *f) |
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186 rl_read_init_file (f); |
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187 else |
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188 rl_re_read_init_file (0, 0); |
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189 } |
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190 |
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191 int |
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192 octave_rl_filename_completion_desired (int arg) |
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193 { |
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194 int retval = rl_filename_completion_desired; |
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195 rl_filename_completion_desired = arg; |
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196 return retval; |
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197 } |
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198 |
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199 char * |
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200 octave_rl_filename_completion_function (const char *text, int state) |
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201 { |
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202 return rl_filename_completion_function (text, state); |
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203 } |
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204 |
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205 void |
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206 octave_rl_set_basic_word_break_characters (const char *s) |
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207 { |
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208 OCTAVE_RL_SAVE_STRING (ss, s); |
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209 |
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210 rl_basic_word_break_characters = ss; |
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211 } |
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212 |
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213 void |
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214 octave_rl_set_completer_word_break_characters (const char *s) |
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215 { |
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216 OCTAVE_RL_SAVE_STRING (ss, s); |
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217 |
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218 rl_completer_word_break_characters = ss; |
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219 } |
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220 |
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221 void |
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222 octave_rl_set_basic_quote_characters (const char *s) |
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223 { |
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224 OCTAVE_RL_SAVE_STRING (ss, s); |
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225 |
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226 rl_basic_quote_characters = ss; |
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227 } |
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228 |
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229 void |
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230 octave_rl_set_completion_append_character (char c) |
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231 { |
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232 rl_completion_append_character = c; |
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233 } |
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234 |
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235 void |
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236 octave_rl_set_completion_function (rl_attempted_completion_fcn_ptr f) |
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237 { |
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238 rl_attempted_completion_function = f; |
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239 } |
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240 |
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241 void |
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242 octave_rl_set_startup_hook (rl_startup_hook_fcn_ptr f) |
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243 { |
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244 rl_startup_hook = f; |
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245 } |
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246 |
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247 rl_startup_hook_fcn_ptr |
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248 octave_rl_get_startup_hook (void) |
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249 { |
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250 return rl_startup_hook; |
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251 } |
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252 |
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253 void |
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254 octave_rl_set_event_hook (rl_event_hook_fcn_ptr f) |
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255 { |
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256 rl_event_hook = f; |
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257 } |
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258 |
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259 rl_event_hook_fcn_ptr |
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260 octave_rl_get_event_hook (void) |
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261 { |
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262 return rl_event_hook; |
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263 } |
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264 |
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265 char ** |
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266 octave_rl_completion_matches (const char *text, rl_completer_fcn_ptr f) |
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267 { |
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268 return rl_completion_matches (text, f); |
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269 } |
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270 |
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271 char |
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272 octave_rl_prompt_start_ignore (void) |
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273 { |
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274 return RL_PROMPT_START_IGNORE; |
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275 } |
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276 |
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277 char |
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278 octave_rl_prompt_end_ignore (void) |
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279 { |
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280 return RL_PROMPT_END_IGNORE; |
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281 } |
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282 |
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283 void |
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284 octave_rl_add_defun (const char *name, rl_fcn_ptr f, char key) |
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285 { |
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286 rl_add_defun (name, f, key); |
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287 } |
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288 |
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289 void |
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290 octave_rl_set_terminal_name (const char *term) |
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291 { |
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292 rl_terminal_name = term; |
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293 } |
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294 |
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295 void |
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296 octave_rl_initialize (void) |
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297 { |
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298 rl_initialize (); |
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299 } |
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300 |
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301 int |
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302 octave_rl_history_search_forward (int count, int ignore) |
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303 { |
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304 return rl_history_search_forward (count, ignore); |
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305 } |
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306 |
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307 int |
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308 octave_rl_history_search_backward (int count, int ignore) |
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309 { |
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310 return rl_history_search_backward (count, ignore); |
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311 } |
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312 |
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313 char |
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314 octave_rl_ctrl (char c) |
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315 { |
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316 return CTRL (c); |
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317 } |
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318 |
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319 char |
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320 octave_rl_meta (char c) |
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321 { |
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322 return META (c); |
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323 } |
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324 |
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325 #endif |
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326 |
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327 /* |
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328 ;;; Local Variables: *** |
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329 ;;; mode: C++ *** |
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330 ;;; End: *** |
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331 */ |
