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1 // user-prefs.cc -*- C++ -*- |
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2 /* |
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3 |
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1009
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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240
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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 <string.h> |
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29 |
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30 #include "user-prefs.h" |
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31 #include "error.h" |
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32 #include "variables.h" |
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33 #include "utils.h" |
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34 |
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35 // The list of user preferences. Values change when global variables |
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36 // change, so we don\'t have to do a variable look up every time we |
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37 // need to check a preference. |
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38 user_preferences user_pref; |
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39 |
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720
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40 // Initialize global user_pref structure. |
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41 |
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831
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42 void |
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720
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43 init_user_prefs (void) |
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44 { |
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45 user_pref.automatic_replot = 0; |
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46 user_pref.whitespace_in_literal_matrix = 0; |
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47 user_pref.do_fortran_indexing = 0; |
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48 user_pref.empty_list_elements_ok = 0; |
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49 user_pref.ignore_function_time_stamp = 0; |
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50 user_pref.implicit_str_to_num_ok = 0; |
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51 user_pref.ok_to_lose_imaginary_part = 0; |
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52 user_pref.output_max_field_width = 0; |
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53 user_pref.output_precision = 0; |
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54 user_pref.page_screen_output = 0; |
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55 user_pref.prefer_column_vectors = 0; |
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56 user_pref.prefer_zero_one_indexing = 0; |
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57 user_pref.print_answer_id_name = 0; |
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58 user_pref.print_empty_dimensions = 0; |
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59 user_pref.propagate_empty_matrices = 0; |
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60 user_pref.resize_on_range_error = 0; |
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61 user_pref.return_last_computed_value = 0; |
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62 user_pref.save_precision = 0; |
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63 user_pref.silent_functions = 0; |
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64 user_pref.split_long_rows = 0; |
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65 user_pref.treat_neg_dim_as_zero = 0; |
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66 user_pref.warn_assign_as_truth_value = 0; |
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67 user_pref.warn_comma_in_global_decl = 0; |
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68 user_pref.warn_divide_by_zero = 0; |
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69 |
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70 user_pref.default_save_format = 0; |
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71 user_pref.editor = 0; |
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72 user_pref.gnuplot_binary = 0; |
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73 user_pref.imagepath = 0; |
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74 user_pref.info_file = 0; |
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75 user_pref.loadpath = 0; |
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76 user_pref.pager_binary = 0; |
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77 user_pref.ps1 = 0; |
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78 user_pref.ps2 = 0; |
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79 user_pref.pwd = 0; |
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80 } |
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81 |
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82 // Check the value of a string variable to see if it it's ok to do |
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83 // something. |
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84 // |
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673
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85 // return of 1 => always ok. |
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86 // return of 0 => never ok. |
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661
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87 // return of -1 => ok, but give me warning (default). |
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88 |
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89 static int |
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90 check_str_pref (char *var) |
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91 { |
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195
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92 char *val = builtin_string_variable (var); |
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93 int pref = -1; |
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529
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94 if (val) |
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95 { |
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96 if (strncmp (val, "yes", 3) == 0 |
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97 || strncmp (val, "true", 4) == 0) |
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98 pref = 1; |
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99 else if (strncmp (val, "never", 5) == 0 |
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100 || strncmp (val, "no", 2) == 0 |
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101 || strncmp (val, "false", 5) == 0) |
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102 pref = 0; |
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103 } |
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104 return pref; |
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105 } |
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106 |
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661
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107 // Should a replot command be generated automatically each time a plot |
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108 // changes in some way? |
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109 |
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110 int |
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111 automatic_replot (void) |
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112 { |
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113 user_pref.automatic_replot = check_str_pref ("automatic_replot"); |
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114 |
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115 return 0; |
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116 } |
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117 |
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118 |
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984
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119 // Should whitespace in a literal matrix list be automatically |
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120 // converted to commas and semicolons? |
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121 // |
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122 // user specifies value of pref |
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123 // -------------- ------------- |
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987
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124 // "ignore" 2 |
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661
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125 // "traditional" 1 |
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126 // anything else 0 |
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127 // |
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128 // Octave will never insert a comma in a literal matrix list if the |
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129 // user specifies "ignore". For example, the statement [1 2] will |
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130 // result in an error instead of being treated the same as [1, 2], and |
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131 // the statement |
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132 // |
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133 // [ 1, 2, |
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134 // 3, 4 ] |
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135 // |
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136 // will result in the vector [1 2 3 4] instead of a matrix. |
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137 // |
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138 // Traditional behavior makes Octave convert spaces to a comma between |
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139 // identifiers and `('. For example, the statement |
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140 // |
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141 // [eye (2)] |
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142 // |
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143 // will be parsed as |
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144 // |
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145 // [eye, (2)] |
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146 // |
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147 // and will result in an error since the `eye' function will be |
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148 // called with no arguments. To get around this, you would have to |
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149 // omit the space between `eye' and the `('. |
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150 // |
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151 // The default value is 0, which results in behavior that is the same |
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152 // as traditional, except that Octave does not convert spaces to a |
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153 // comma between identifiers and `('. For example, the statement |
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154 // |
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155 // [eye (2)] |
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156 // |
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157 // will result in a call to `eye' with the argument `2'. |
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158 |
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430
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159 int |
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160 whitespace_in_literal_matrix (void) |
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430
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161 { |
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162 int pref = 0; |
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163 char *val = builtin_string_variable ("whitespace_in_literal_matrix"); |
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164 if (val) |
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430
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165 { |
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166 if (strncmp (val, "ignore", 6) == 0) |
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430
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167 pref = 2; |
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168 else if (strncmp (val, "traditional", 11) == 0) |
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169 pref = 1; |
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170 } |
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171 user_pref.whitespace_in_literal_matrix = pref; |
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430
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172 return 0; |
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173 } |
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174 |
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661
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175 |
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176 // Should we allow assignments like: |
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177 // |
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178 // octave> A(1) = 3; A(2) = 5 |
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179 // |
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180 // for A already defined and a matrix type? |
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181 |
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182 int |
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183 do_fortran_indexing (void) |
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184 { |
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185 user_pref.do_fortran_indexing = |
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186 check_str_pref ("do_fortran_indexing"); |
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187 |
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188 return 0; |
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189 } |
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190 |
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661
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191 |
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192 // Should ignore empty elements in a matrix list (i.e., is an |
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193 // expression like `[[], 1]' ok? |
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194 |
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195 int |
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196 empty_list_elements_ok (void) |
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197 { |
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198 user_pref.empty_list_elements_ok = |
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199 check_str_pref ("empty_list_elements_ok"); |
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200 |
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201 return 0; |
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202 } |
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203 |
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661
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204 |
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205 // Should Octave always check to see if function files have changed |
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206 // since they were last compiled? |
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207 |
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430
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208 int |
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209 ignore_function_time_stamp (void) |
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210 { |
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211 int pref = 0; |
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212 |
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213 char *val = builtin_string_variable ("ignore_function_time_stamp"); |
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214 |
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529
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215 if (val) |
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430
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216 { |
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217 if (strncmp (val, "all", 3) == 0) |
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218 pref = 2; |
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219 if (strncmp (val, "system", 6) == 0) |
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220 pref = 1; |
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221 } |
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222 |
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223 user_pref.ignore_function_time_stamp = pref; |
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224 |
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225 return 0; |
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226 } |
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227 |
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661
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228 |
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229 // Should we allow things like: |
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230 // |
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231 // octave> 'abc' + 0 |
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232 // 97 98 99 |
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233 // |
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234 // to happen? |
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235 |
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236 int |
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237 implicit_str_to_num_ok (void) |
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238 { |
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239 user_pref.implicit_str_to_num_ok = |
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240 check_str_pref ("implicit_str_to_num_ok"); |
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241 |
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242 return 0; |
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243 } |
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244 |
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661
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245 |
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246 // Should we allow silent conversion of complex to real when a real |
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247 // type is what we\'re really looking for? |
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248 |
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249 int |
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250 ok_to_lose_imaginary_part (void) |
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251 { |
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252 user_pref.ok_to_lose_imaginary_part = |
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253 check_str_pref ("ok_to_lose_imaginary_part"); |
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254 |
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255 return 0; |
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256 } |
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257 |
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661
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258 |
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259 // If possible, send all output intended for the screen through the |
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260 // pager. |
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261 |
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430
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262 int |
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263 page_screen_output (void) |
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264 { |
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265 user_pref.page_screen_output = check_str_pref ("page_screen_output"); |
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266 |
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267 return 0; |
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268 } |
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269 |
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661
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270 |
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271 // When doing assignments like: |
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272 // |
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273 // octave> A(1) = 3; A(2) = 5 |
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274 // |
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275 // (for A undefined) should we build column vectors? Returning true |
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276 // only matters when resize_on_range_error is also true. |
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277 |
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278 int |
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279 prefer_column_vectors (void) |
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280 { |
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281 user_pref.prefer_column_vectors = |
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282 check_str_pref ("prefer_column_vectors"); |
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283 |
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284 return 0; |
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285 } |
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286 |
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661
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287 |
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288 // For things like |
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289 // |
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290 // a = [2,3]; a([1,1]) |
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291 // |
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292 // return [2 3] instead of [2 2]. |
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293 |
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294 int |
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295 prefer_zero_one_indexing (void) |
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296 { |
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297 user_pref.prefer_zero_one_indexing = |
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298 check_str_pref ("prefer_zero_one_indexing"); |
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299 |
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300 return 0; |
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301 } |
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302 |
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661
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303 |
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304 // Should we print things like |
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305 // |
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306 // octave> a = [1,2;3,4] |
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307 // a = |
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308 // |
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309 // 1 2 |
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310 // 3 4 |
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311 |
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312 int |
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313 print_answer_id_name (void) |
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314 { |
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315 user_pref.print_answer_id_name = |
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316 check_str_pref ("print_answer_id_name"); |
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317 |
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318 return 0; |
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319 } |
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320 |
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661
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321 |
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322 // Should we also print the dimensions of empty matrices? |
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323 |
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430
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324 int |
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325 print_empty_dimensions (void) |
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326 { |
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327 user_pref.print_empty_dimensions = |
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328 check_str_pref ("print_empty_dimensions"); |
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329 |
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330 return 0; |
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331 } |
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332 |
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661
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333 |
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334 // Should operations on empty matrices return empty matrices or an |
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335 // error? |
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336 |
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337 int |
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338 propagate_empty_matrices (void) |
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339 { |
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340 user_pref.propagate_empty_matrices = |
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341 check_str_pref ("propagate_empty_matrices"); |
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342 |
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343 return 0; |
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344 } |
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345 |
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661
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346 |
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347 // When doing assignments, should we resize matrices if the indices |
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348 // are outside the current bounds? |
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349 |
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350 int |
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351 resize_on_range_error (void) |
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352 { |
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353 user_pref.resize_on_range_error = |
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354 check_str_pref ("resize_on_range_error"); |
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355 |
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356 return 0; |
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357 } |
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358 |
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661
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359 |
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360 // If a function does not return any values explicitly, return the |
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361 // last computed value. |
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362 |
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363 int |
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364 return_last_computed_value (void) |
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365 { |
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366 user_pref.return_last_computed_value = |
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367 check_str_pref ("return_last_computed_value"); |
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368 |
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369 return 0; |
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370 } |
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371 |
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661
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372 |
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373 // Suppress printing results in called functions. |
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374 |
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1
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375 int |
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376 silent_functions (void) |
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377 { |
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378 user_pref.silent_functions = |
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379 check_str_pref ("silent_functions"); |
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380 |
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381 return 0; |
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382 } |
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383 |
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661
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384 |
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385 // Should should big matrices be split into smaller slices for output? |
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386 |
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387 int |
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388 split_long_rows (void) |
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389 { |
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390 user_pref.split_long_rows = check_str_pref ("split_long_rows"); |
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391 |
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392 return 0; |
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393 } |
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394 |
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661
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395 |
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396 // Should things like: |
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397 // |
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398 // octave> ones (-1, 5) |
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399 // |
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400 // result in an empty matrix or an error? |
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401 |
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1
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402 int |
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403 treat_neg_dim_as_zero (void) |
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404 { |
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405 user_pref.treat_neg_dim_as_zero = |
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406 check_str_pref ("treat_neg_dim_as_zero"); |
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407 |
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408 return 0; |
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409 } |
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410 |
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661
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411 |
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412 // Generate a warning for the assignment in things like |
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413 // |
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414 // octave> if (a = 2 < n) |
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415 // |
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416 // but not |
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417 // |
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418 // octave> if ((a = 2) < n) |
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419 |
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430
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420 int |
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421 warn_assign_as_truth_value (void) |
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422 { |
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423 user_pref.warn_assign_as_truth_value = |
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424 check_str_pref ("warn_assign_as_truth_value"); |
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425 |
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426 return 0; |
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427 } |
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428 |
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661
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429 |
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430 // Generate a warning for the comma in things like |
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431 // |
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432 // octave> global a, b = 2 |
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433 |
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1
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434 int |
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435 warn_comma_in_global_decl (void) |
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436 { |
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437 user_pref.warn_comma_in_global_decl = |
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438 check_str_pref ("warn_comma_in_global_decl"); |
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439 |
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440 return 0; |
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441 } |
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442 |
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661
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443 |
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444 // On IEEE machines, allow divide by zero errors to be suppressed. |
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445 |
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1
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446 int |
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447 warn_divide_by_zero (void) |
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448 { |
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449 user_pref.warn_divide_by_zero = check_str_pref ("warn_divide_by_zero"); |
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450 |
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451 return 0; |
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452 } |
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453 |
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454 int |
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455 set_output_max_field_width (void) |
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456 { |
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457 int status = 0; |
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458 |
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459 static int kludge = 0; |
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460 |
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461 double val; |
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195
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462 if (builtin_real_scalar_variable ("output_max_field_width", val) == 0) |
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1
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463 { |
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464 int ival = NINT (val); |
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465 if (ival > 0 && (double) ival == val) |
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466 { |
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467 user_pref.output_max_field_width= ival; |
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468 return status; |
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469 } |
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470 } |
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471 |
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472 if (kludge == 0) |
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473 kludge++; |
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474 else |
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475 { |
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476 warning ("invalid value specified for output_max_field_width"); |
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477 status = -1; |
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478 } |
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479 |
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480 return status; |
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481 } |
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482 |
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483 int |
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484 set_output_precision (void) |
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485 { |
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486 int status = 0; |
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487 |
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488 static int kludge = 0; |
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489 |
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490 double val; |
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195
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491 if (builtin_real_scalar_variable ("output_precision", val) == 0) |
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1
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492 { |
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493 int ival = NINT (val); |
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494 if (ival >= 0 && (double) ival == val) |
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495 { |
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496 user_pref.output_precision = ival; |
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497 return status; |
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498 } |
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499 } |
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500 |
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501 if (kludge == 0) |
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502 kludge++; |
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|
503 else |
|
|
504 { |
|
|
505 warning ("invalid value specified for output_precision"); |
|
|
506 status = -1; |
|
|
507 } |
|
|
508 |
|
|
509 return status; |
|
|
510 } |
|
|
511 |
|
|
512 int |
|
275
|
513 set_save_precision (void) |
|
|
514 { |
|
|
515 int status = 0; |
|
|
516 |
|
|
517 static int kludge = 0; |
|
|
518 |
|
|
519 double val; |
|
|
520 if (builtin_real_scalar_variable ("save_precision", val) == 0) |
|
|
521 { |
|
|
522 int ival = NINT (val); |
|
|
523 if (ival >= 0 && (double) ival == val) |
|
|
524 { |
|
|
525 user_pref.save_precision = ival; |
|
|
526 return status; |
|
|
527 } |
|
|
528 } |
|
|
529 |
|
|
530 if (kludge == 0) |
|
|
531 kludge++; |
|
|
532 else |
|
|
533 { |
|
|
534 warning ("invalid value specified for save_precision"); |
|
|
535 status = -1; |
|
|
536 } |
|
|
537 |
|
|
538 return status; |
|
|
539 } |
|
|
540 |
|
|
541 int |
|
430
|
542 sv_editor (void) |
|
1
|
543 { |
|
|
544 int status = 0; |
|
|
545 |
|
430
|
546 char *s = builtin_string_variable ("EDITOR"); |
|
529
|
547 if (s) |
|
1
|
548 { |
|
430
|
549 delete [] user_pref.editor; |
|
|
550 user_pref.editor = s; |
|
1
|
551 } |
|
|
552 else |
|
|
553 { |
|
430
|
554 warning ("invalid value specified for EDITOR"); |
|
|
555 status = -1; |
|
|
556 } |
|
|
557 |
|
|
558 return status; |
|
|
559 } |
|
|
560 |
|
|
561 int |
|
605
|
562 sv_default_save_format (void) |
|
|
563 { |
|
|
564 int status = 0; |
|
|
565 |
|
|
566 char *s = builtin_string_variable ("default_save_format"); |
|
|
567 if (s) |
|
|
568 { |
|
|
569 delete [] user_pref.default_save_format; |
|
|
570 user_pref.default_save_format = s; |
|
|
571 } |
|
|
572 else |
|
|
573 { |
|
|
574 warning ("invalid value specified for default_save_format"); |
|
|
575 status = -1; |
|
|
576 } |
|
|
577 |
|
|
578 return status; |
|
|
579 } |
|
|
580 |
|
|
581 int |
|
430
|
582 sv_gnuplot_binary (void) |
|
|
583 { |
|
|
584 int status = 0; |
|
|
585 |
|
|
586 char *s = builtin_string_variable ("gnuplot_binary"); |
|
529
|
587 if (s) |
|
430
|
588 { |
|
|
589 delete [] user_pref.gnuplot_binary; |
|
|
590 user_pref.gnuplot_binary = s; |
|
|
591 } |
|
|
592 else |
|
|
593 { |
|
|
594 warning ("invalid value specified for gnuplot_binary"); |
|
1
|
595 status = -1; |
|
|
596 } |
|
|
597 |
|
|
598 return status; |
|
|
599 } |
|
|
600 |
|
|
601 int |
|
686
|
602 sv_imagepath (void) |
|
|
603 { |
|
|
604 int status = 0; |
|
|
605 |
|
|
606 char *s = builtin_string_variable ("IMAGEPATH"); |
|
|
607 if (s) |
|
|
608 { |
|
|
609 delete [] user_pref.imagepath; |
|
|
610 user_pref.imagepath = s; |
|
|
611 } |
|
|
612 else |
|
|
613 { |
|
|
614 warning ("invalid value specified for IMAGEPATH"); |
|
|
615 status = -1; |
|
|
616 } |
|
|
617 |
|
|
618 return status; |
|
|
619 } |
|
|
620 |
|
|
621 int |
|
186
|
622 sv_info_file (void) |
|
|
623 { |
|
|
624 int status = 0; |
|
|
625 |
|
195
|
626 char *s = builtin_string_variable ("INFO_FILE"); |
|
529
|
627 if (s) |
|
186
|
628 { |
|
|
629 delete [] user_pref.info_file; |
|
|
630 user_pref.info_file = s; |
|
|
631 } |
|
|
632 else |
|
|
633 { |
|
|
634 warning ("invalid value specified for INFO_FILE"); |
|
|
635 status = -1; |
|
|
636 } |
|
|
637 |
|
|
638 return status; |
|
|
639 } |
|
|
640 |
|
|
641 int |
|
430
|
642 sv_loadpath (void) |
|
195
|
643 { |
|
|
644 int status = 0; |
|
|
645 |
|
430
|
646 char *s = builtin_string_variable ("LOADPATH"); |
|
529
|
647 if (s) |
|
195
|
648 { |
|
430
|
649 delete [] user_pref.loadpath; |
|
|
650 user_pref.loadpath = s; |
|
195
|
651 } |
|
|
652 else |
|
|
653 { |
|
430
|
654 warning ("invalid value specified for LOADPATH"); |
|
|
655 status = -1; |
|
|
656 } |
|
|
657 |
|
|
658 return status; |
|
|
659 } |
|
|
660 |
|
|
661 int |
|
|
662 sv_pager_binary (void) |
|
|
663 { |
|
|
664 int status = 0; |
|
|
665 |
|
|
666 char *s = builtin_string_variable ("PAGER"); |
|
529
|
667 if (s) |
|
430
|
668 { |
|
|
669 delete [] user_pref.pager_binary; |
|
|
670 user_pref.pager_binary = s; |
|
|
671 } |
|
|
672 else |
|
|
673 { |
|
|
674 warning ("invalid value specified for PAGER"); |
|
195
|
675 status = -1; |
|
|
676 } |
|
|
677 |
|
|
678 return status; |
|
|
679 } |
|
|
680 |
|
|
681 int |
|
1
|
682 sv_ps1 (void) |
|
|
683 { |
|
|
684 int status = 0; |
|
|
685 |
|
195
|
686 char *s = builtin_string_variable ("PS1"); |
|
529
|
687 if (s) |
|
1
|
688 { |
|
|
689 delete [] user_pref.ps1; |
|
|
690 user_pref.ps1 = s; |
|
|
691 } |
|
|
692 else |
|
|
693 { |
|
|
694 warning ("invalid value specified for PS1"); |
|
|
695 status = -1; |
|
|
696 } |
|
|
697 |
|
|
698 return status; |
|
|
699 } |
|
|
700 |
|
|
701 int |
|
|
702 sv_ps2 (void) |
|
|
703 { |
|
|
704 int status = 0; |
|
|
705 |
|
195
|
706 char *s = builtin_string_variable ("PS2"); |
|
529
|
707 if (s) |
|
1
|
708 { |
|
|
709 delete [] user_pref.ps2; |
|
|
710 user_pref.ps2 = s; |
|
|
711 } |
|
|
712 else |
|
|
713 { |
|
|
714 warning ("invalid value specified for PS2"); |
|
|
715 status = -1; |
|
|
716 } |
|
|
717 |
|
|
718 return status; |
|
|
719 } |
|
|
720 |
|
|
721 int |
|
|
722 sv_pwd (void) |
|
|
723 { |
|
|
724 int status = 0; |
|
|
725 |
|
195
|
726 char *s = builtin_string_variable ("PWD"); |
|
529
|
727 if (s) |
|
1
|
728 { |
|
|
729 delete [] user_pref.pwd; |
|
|
730 user_pref.pwd = s; |
|
|
731 } |
|
|
732 else |
|
|
733 { |
|
|
734 warning ("invalid value specified for PWD"); |
|
|
735 status = -1; |
|
|
736 } |
|
|
737 |
|
|
738 return status; |
|
|
739 } |
|
|
740 |
|
|
741 /* |
|
|
742 ;;; Local Variables: *** |
|
|
743 ;;; mode: C++ *** |
|
|
744 ;;; page-delimiter: "^/\\*" *** |
|
|
745 ;;; End: *** |
|
|
746 */ |
