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1 // user-prefs.cc -*- C++ -*- |
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2 /* |
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3 |
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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 user_pref.warn_function_name_clash = 0; |
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70 |
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71 user_pref.default_save_format = 0; |
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72 user_pref.editor = 0; |
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73 user_pref.gnuplot_binary = 0; |
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74 user_pref.imagepath = 0; |
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75 user_pref.info_file = 0; |
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76 user_pref.loadpath = 0; |
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77 user_pref.pager_binary = 0; |
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78 user_pref.ps1 = 0; |
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79 user_pref.ps2 = 0; |
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80 user_pref.pwd = 0; |
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81 } |
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661
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82 |
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83 // Check the value of a string variable to see if it it's ok to do |
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84 // something. |
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85 // |
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673
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86 // return of 1 => always ok. |
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87 // return of 0 => never ok. |
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661
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88 // return of -1 => ok, but give me warning (default). |
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89 |
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90 static int |
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91 check_str_pref (char *var) |
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92 { |
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93 char *val = builtin_string_variable (var); |
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94 int pref = -1; |
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529
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95 if (val) |
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96 { |
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97 if (strncmp (val, "yes", 3) == 0 |
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98 || strncmp (val, "true", 4) == 0) |
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99 pref = 1; |
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100 else if (strncmp (val, "never", 5) == 0 |
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101 || strncmp (val, "no", 2) == 0 |
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102 || strncmp (val, "false", 5) == 0) |
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103 pref = 0; |
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104 } |
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105 return pref; |
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106 } |
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107 |
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661
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108 // Should a replot command be generated automatically each time a plot |
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109 // changes in some way? |
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110 |
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111 int |
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112 automatic_replot (void) |
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113 { |
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114 user_pref.automatic_replot = check_str_pref ("automatic_replot"); |
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115 |
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116 return 0; |
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117 } |
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118 |
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119 |
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984
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120 // Should whitespace in a literal matrix list be automatically |
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121 // converted to commas and semicolons? |
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122 // |
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123 // user specifies value of pref |
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124 // -------------- ------------- |
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125 // "ignore" 2 |
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126 // "traditional" 1 |
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127 // anything else 0 |
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128 // |
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129 // Octave will never insert a comma in a literal matrix list if the |
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130 // user specifies "ignore". For example, the statement [1 2] will |
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131 // result in an error instead of being treated the same as [1, 2], and |
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132 // the statement |
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133 // |
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134 // [ 1, 2, |
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135 // 3, 4 ] |
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136 // |
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137 // will result in the vector [1 2 3 4] instead of a matrix. |
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138 // |
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139 // Traditional behavior makes Octave convert spaces to a comma between |
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140 // identifiers and `('. For example, the statement |
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141 // |
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142 // [eye (2)] |
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143 // |
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144 // will be parsed as |
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145 // |
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146 // [eye, (2)] |
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147 // |
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148 // and will result in an error since the `eye' function will be |
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149 // called with no arguments. To get around this, you would have to |
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150 // omit the space between `eye' and the `('. |
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151 // |
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152 // The default value is 0, which results in behavior that is the same |
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153 // as traditional, except that Octave does not convert spaces to a |
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154 // comma between identifiers and `('. For example, the statement |
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155 // |
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156 // [eye (2)] |
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157 // |
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158 // will result in a call to `eye' with the argument `2'. |
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159 |
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430
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160 int |
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161 whitespace_in_literal_matrix (void) |
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430
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162 { |
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163 int pref = 0; |
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164 char *val = builtin_string_variable ("whitespace_in_literal_matrix"); |
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165 if (val) |
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430
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166 { |
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167 if (strncmp (val, "ignore", 6) == 0) |
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430
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168 pref = 2; |
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169 else if (strncmp (val, "traditional", 11) == 0) |
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170 pref = 1; |
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171 } |
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172 user_pref.whitespace_in_literal_matrix = pref; |
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430
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173 return 0; |
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174 } |
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175 |
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661
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176 |
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177 // Should we allow assignments like: |
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178 // |
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179 // octave> A(1) = 3; A(2) = 5 |
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180 // |
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181 // for A already defined and a matrix type? |
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182 |
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183 int |
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184 do_fortran_indexing (void) |
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185 { |
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186 user_pref.do_fortran_indexing = |
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187 check_str_pref ("do_fortran_indexing"); |
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188 |
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189 return 0; |
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190 } |
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191 |
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661
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192 |
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193 // Should ignore empty elements in a matrix list (i.e., is an |
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194 // expression like `[[], 1]' ok? |
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195 |
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196 int |
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197 empty_list_elements_ok (void) |
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198 { |
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199 user_pref.empty_list_elements_ok = |
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200 check_str_pref ("empty_list_elements_ok"); |
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201 |
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202 return 0; |
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203 } |
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204 |
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661
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205 |
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206 // Should Octave always check to see if function files have changed |
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207 // since they were last compiled? |
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208 |
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430
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209 int |
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210 ignore_function_time_stamp (void) |
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211 { |
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212 int pref = 0; |
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213 |
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214 char *val = builtin_string_variable ("ignore_function_time_stamp"); |
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215 |
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529
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216 if (val) |
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430
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217 { |
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218 if (strncmp (val, "all", 3) == 0) |
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219 pref = 2; |
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220 if (strncmp (val, "system", 6) == 0) |
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221 pref = 1; |
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222 } |
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223 |
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224 user_pref.ignore_function_time_stamp = pref; |
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225 |
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226 return 0; |
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227 } |
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228 |
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661
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229 |
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230 // Should we allow things like: |
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231 // |
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232 // octave> 'abc' + 0 |
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233 // 97 98 99 |
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234 // |
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235 // to happen? |
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236 |
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237 int |
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238 implicit_str_to_num_ok (void) |
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239 { |
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240 user_pref.implicit_str_to_num_ok = |
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241 check_str_pref ("implicit_str_to_num_ok"); |
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242 |
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243 return 0; |
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244 } |
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245 |
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661
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246 |
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247 // Should we allow silent conversion of complex to real when a real |
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248 // type is what we\'re really looking for? |
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249 |
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250 int |
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251 ok_to_lose_imaginary_part (void) |
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252 { |
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253 user_pref.ok_to_lose_imaginary_part = |
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254 check_str_pref ("ok_to_lose_imaginary_part"); |
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255 |
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256 return 0; |
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257 } |
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258 |
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661
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259 |
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260 // If possible, send all output intended for the screen through the |
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261 // pager. |
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262 |
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430
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263 int |
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264 page_screen_output (void) |
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265 { |
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266 user_pref.page_screen_output = check_str_pref ("page_screen_output"); |
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267 |
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268 return 0; |
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269 } |
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270 |
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661
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271 |
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272 // When doing assignments like: |
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273 // |
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274 // octave> A(1) = 3; A(2) = 5 |
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275 // |
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276 // (for A undefined) should we build column vectors? Returning true |
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277 // only matters when resize_on_range_error is also true. |
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278 |
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279 int |
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280 prefer_column_vectors (void) |
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281 { |
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282 user_pref.prefer_column_vectors = |
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283 check_str_pref ("prefer_column_vectors"); |
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284 |
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285 return 0; |
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286 } |
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287 |
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288 |
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289 // For things like |
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290 // |
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291 // a = [2,3]; a([1,1]) |
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292 // |
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293 // return [2 3] instead of [2 2]. |
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294 |
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295 int |
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296 prefer_zero_one_indexing (void) |
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297 { |
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298 user_pref.prefer_zero_one_indexing = |
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299 check_str_pref ("prefer_zero_one_indexing"); |
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300 |
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301 return 0; |
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302 } |
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303 |
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661
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304 |
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305 // Should we print things like |
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306 // |
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307 // octave> a = [1,2;3,4] |
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308 // a = |
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309 // |
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310 // 1 2 |
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311 // 3 4 |
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312 |
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313 int |
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314 print_answer_id_name (void) |
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315 { |
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316 user_pref.print_answer_id_name = |
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317 check_str_pref ("print_answer_id_name"); |
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318 |
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319 return 0; |
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320 } |
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321 |
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661
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322 |
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323 // Should we also print the dimensions of empty matrices? |
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324 |
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430
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325 int |
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326 print_empty_dimensions (void) |
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327 { |
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328 user_pref.print_empty_dimensions = |
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329 check_str_pref ("print_empty_dimensions"); |
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330 |
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331 return 0; |
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332 } |
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333 |
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661
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334 |
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335 // Should operations on empty matrices return empty matrices or an |
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336 // error? |
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337 |
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338 int |
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339 propagate_empty_matrices (void) |
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340 { |
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341 user_pref.propagate_empty_matrices = |
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342 check_str_pref ("propagate_empty_matrices"); |
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343 |
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344 return 0; |
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345 } |
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346 |
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661
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347 |
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348 // When doing assignments, should we resize matrices if the indices |
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349 // are outside the current bounds? |
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350 |
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351 int |
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352 resize_on_range_error (void) |
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353 { |
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354 user_pref.resize_on_range_error = |
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355 check_str_pref ("resize_on_range_error"); |
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356 |
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357 return 0; |
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358 } |
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359 |
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661
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360 |
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361 // If a function does not return any values explicitly, return the |
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362 // last computed value. |
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363 |
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1
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364 int |
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365 return_last_computed_value (void) |
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366 { |
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367 user_pref.return_last_computed_value = |
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368 check_str_pref ("return_last_computed_value"); |
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369 |
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370 return 0; |
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371 } |
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372 |
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661
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373 |
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374 // Suppress printing results in called functions. |
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375 |
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1
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376 int |
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377 silent_functions (void) |
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378 { |
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379 user_pref.silent_functions = |
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380 check_str_pref ("silent_functions"); |
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381 |
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382 return 0; |
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383 } |
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384 |
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661
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385 |
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386 // Should should big matrices be split into smaller slices for output? |
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387 |
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388 int |
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389 split_long_rows (void) |
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390 { |
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391 user_pref.split_long_rows = check_str_pref ("split_long_rows"); |
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392 |
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393 return 0; |
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394 } |
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395 |
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661
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396 |
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397 // Should things like: |
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398 // |
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399 // octave> ones (-1, 5) |
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400 // |
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401 // result in an empty matrix or an error? |
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402 |
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1
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403 int |
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404 treat_neg_dim_as_zero (void) |
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405 { |
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406 user_pref.treat_neg_dim_as_zero = |
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407 check_str_pref ("treat_neg_dim_as_zero"); |
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408 |
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409 return 0; |
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410 } |
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411 |
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661
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412 |
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413 // Generate a warning for the assignment in things like |
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414 // |
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415 // octave> if (a = 2 < n) |
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416 // |
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417 // but not |
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418 // |
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419 // octave> if ((a = 2) < n) |
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420 |
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430
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421 int |
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422 warn_assign_as_truth_value (void) |
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423 { |
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424 user_pref.warn_assign_as_truth_value = |
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425 check_str_pref ("warn_assign_as_truth_value"); |
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426 |
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427 return 0; |
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428 } |
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429 |
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661
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430 |
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431 // Generate a warning for the comma in things like |
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432 // |
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433 // octave> global a, b = 2 |
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434 |
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1
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435 int |
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436 warn_comma_in_global_decl (void) |
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437 { |
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438 user_pref.warn_comma_in_global_decl = |
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439 check_str_pref ("warn_comma_in_global_decl"); |
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440 |
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441 return 0; |
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442 } |
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443 |
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661
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444 |
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445 // On IEEE machines, allow divide by zero errors to be suppressed. |
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446 |
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1
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447 int |
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448 warn_divide_by_zero (void) |
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449 { |
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450 user_pref.warn_divide_by_zero = check_str_pref ("warn_divide_by_zero"); |
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451 |
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452 return 0; |
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453 } |
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454 |
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1037
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455 // Generate warning if declared function name disagrees with the name |
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456 // of the file in which it is defined. |
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457 |
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458 int |
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459 warn_function_name_clash (void) |
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460 { |
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461 user_pref.warn_function_name_clash = |
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462 check_str_pref ("warn_function_name_clash"); |
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463 |
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464 return 0; |
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465 } |
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466 |
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1
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467 int |
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468 set_output_max_field_width (void) |
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469 { |
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470 int status = 0; |
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471 |
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472 static int kludge = 0; |
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473 |
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474 double val; |
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195
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475 if (builtin_real_scalar_variable ("output_max_field_width", val) == 0) |
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1
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476 { |
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477 int ival = NINT (val); |
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478 if (ival > 0 && (double) ival == val) |
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479 { |
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480 user_pref.output_max_field_width= ival; |
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481 return status; |
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482 } |
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483 } |
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484 |
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485 if (kludge == 0) |
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486 kludge++; |
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487 else |
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488 { |
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489 warning ("invalid value specified for output_max_field_width"); |
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490 status = -1; |
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491 } |
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492 |
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493 return status; |
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494 } |
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495 |
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496 int |
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497 set_output_precision (void) |
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498 { |
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499 int status = 0; |
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500 |
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501 static int kludge = 0; |
|
|
502 |
|
|
503 double val; |
|
195
|
504 if (builtin_real_scalar_variable ("output_precision", val) == 0) |
|
1
|
505 { |
|
|
506 int ival = NINT (val); |
|
|
507 if (ival >= 0 && (double) ival == val) |
|
|
508 { |
|
|
509 user_pref.output_precision = ival; |
|
|
510 return status; |
|
|
511 } |
|
|
512 } |
|
|
513 |
|
|
514 if (kludge == 0) |
|
|
515 kludge++; |
|
|
516 else |
|
|
517 { |
|
|
518 warning ("invalid value specified for output_precision"); |
|
|
519 status = -1; |
|
|
520 } |
|
|
521 |
|
|
522 return status; |
|
|
523 } |
|
|
524 |
|
|
525 int |
|
275
|
526 set_save_precision (void) |
|
|
527 { |
|
|
528 int status = 0; |
|
|
529 |
|
|
530 static int kludge = 0; |
|
|
531 |
|
|
532 double val; |
|
|
533 if (builtin_real_scalar_variable ("save_precision", val) == 0) |
|
|
534 { |
|
|
535 int ival = NINT (val); |
|
|
536 if (ival >= 0 && (double) ival == val) |
|
|
537 { |
|
|
538 user_pref.save_precision = ival; |
|
|
539 return status; |
|
|
540 } |
|
|
541 } |
|
|
542 |
|
|
543 if (kludge == 0) |
|
|
544 kludge++; |
|
|
545 else |
|
|
546 { |
|
|
547 warning ("invalid value specified for save_precision"); |
|
|
548 status = -1; |
|
|
549 } |
|
|
550 |
|
|
551 return status; |
|
|
552 } |
|
|
553 |
|
|
554 int |
|
430
|
555 sv_editor (void) |
|
1
|
556 { |
|
|
557 int status = 0; |
|
|
558 |
|
430
|
559 char *s = builtin_string_variable ("EDITOR"); |
|
529
|
560 if (s) |
|
1
|
561 { |
|
430
|
562 delete [] user_pref.editor; |
|
|
563 user_pref.editor = s; |
|
1
|
564 } |
|
|
565 else |
|
|
566 { |
|
430
|
567 warning ("invalid value specified for EDITOR"); |
|
|
568 status = -1; |
|
|
569 } |
|
|
570 |
|
|
571 return status; |
|
|
572 } |
|
|
573 |
|
|
574 int |
|
605
|
575 sv_default_save_format (void) |
|
|
576 { |
|
|
577 int status = 0; |
|
|
578 |
|
|
579 char *s = builtin_string_variable ("default_save_format"); |
|
|
580 if (s) |
|
|
581 { |
|
|
582 delete [] user_pref.default_save_format; |
|
|
583 user_pref.default_save_format = s; |
|
|
584 } |
|
|
585 else |
|
|
586 { |
|
|
587 warning ("invalid value specified for default_save_format"); |
|
|
588 status = -1; |
|
|
589 } |
|
|
590 |
|
|
591 return status; |
|
|
592 } |
|
|
593 |
|
|
594 int |
|
430
|
595 sv_gnuplot_binary (void) |
|
|
596 { |
|
|
597 int status = 0; |
|
|
598 |
|
|
599 char *s = builtin_string_variable ("gnuplot_binary"); |
|
529
|
600 if (s) |
|
430
|
601 { |
|
|
602 delete [] user_pref.gnuplot_binary; |
|
|
603 user_pref.gnuplot_binary = s; |
|
|
604 } |
|
|
605 else |
|
|
606 { |
|
|
607 warning ("invalid value specified for gnuplot_binary"); |
|
1
|
608 status = -1; |
|
|
609 } |
|
|
610 |
|
|
611 return status; |
|
|
612 } |
|
|
613 |
|
|
614 int |
|
686
|
615 sv_imagepath (void) |
|
|
616 { |
|
|
617 int status = 0; |
|
|
618 |
|
|
619 char *s = builtin_string_variable ("IMAGEPATH"); |
|
|
620 if (s) |
|
|
621 { |
|
|
622 delete [] user_pref.imagepath; |
|
|
623 user_pref.imagepath = s; |
|
|
624 } |
|
|
625 else |
|
|
626 { |
|
|
627 warning ("invalid value specified for IMAGEPATH"); |
|
|
628 status = -1; |
|
|
629 } |
|
|
630 |
|
|
631 return status; |
|
|
632 } |
|
|
633 |
|
|
634 int |
|
186
|
635 sv_info_file (void) |
|
|
636 { |
|
|
637 int status = 0; |
|
|
638 |
|
195
|
639 char *s = builtin_string_variable ("INFO_FILE"); |
|
529
|
640 if (s) |
|
186
|
641 { |
|
|
642 delete [] user_pref.info_file; |
|
|
643 user_pref.info_file = s; |
|
|
644 } |
|
|
645 else |
|
|
646 { |
|
|
647 warning ("invalid value specified for INFO_FILE"); |
|
|
648 status = -1; |
|
|
649 } |
|
|
650 |
|
|
651 return status; |
|
|
652 } |
|
|
653 |
|
|
654 int |
|
430
|
655 sv_loadpath (void) |
|
195
|
656 { |
|
|
657 int status = 0; |
|
|
658 |
|
430
|
659 char *s = builtin_string_variable ("LOADPATH"); |
|
529
|
660 if (s) |
|
195
|
661 { |
|
430
|
662 delete [] user_pref.loadpath; |
|
|
663 user_pref.loadpath = s; |
|
195
|
664 } |
|
|
665 else |
|
|
666 { |
|
430
|
667 warning ("invalid value specified for LOADPATH"); |
|
|
668 status = -1; |
|
|
669 } |
|
|
670 |
|
|
671 return status; |
|
|
672 } |
|
|
673 |
|
|
674 int |
|
|
675 sv_pager_binary (void) |
|
|
676 { |
|
|
677 int status = 0; |
|
|
678 |
|
|
679 char *s = builtin_string_variable ("PAGER"); |
|
529
|
680 if (s) |
|
430
|
681 { |
|
|
682 delete [] user_pref.pager_binary; |
|
|
683 user_pref.pager_binary = s; |
|
|
684 } |
|
|
685 else |
|
|
686 { |
|
|
687 warning ("invalid value specified for PAGER"); |
|
195
|
688 status = -1; |
|
|
689 } |
|
|
690 |
|
|
691 return status; |
|
|
692 } |
|
|
693 |
|
|
694 int |
|
1
|
695 sv_ps1 (void) |
|
|
696 { |
|
|
697 int status = 0; |
|
|
698 |
|
195
|
699 char *s = builtin_string_variable ("PS1"); |
|
529
|
700 if (s) |
|
1
|
701 { |
|
|
702 delete [] user_pref.ps1; |
|
|
703 user_pref.ps1 = s; |
|
|
704 } |
|
|
705 else |
|
|
706 { |
|
|
707 warning ("invalid value specified for PS1"); |
|
|
708 status = -1; |
|
|
709 } |
|
|
710 |
|
|
711 return status; |
|
|
712 } |
|
|
713 |
|
|
714 int |
|
|
715 sv_ps2 (void) |
|
|
716 { |
|
|
717 int status = 0; |
|
|
718 |
|
195
|
719 char *s = builtin_string_variable ("PS2"); |
|
529
|
720 if (s) |
|
1
|
721 { |
|
|
722 delete [] user_pref.ps2; |
|
|
723 user_pref.ps2 = s; |
|
|
724 } |
|
|
725 else |
|
|
726 { |
|
|
727 warning ("invalid value specified for PS2"); |
|
|
728 status = -1; |
|
|
729 } |
|
|
730 |
|
|
731 return status; |
|
|
732 } |
|
|
733 |
|
|
734 int |
|
|
735 sv_pwd (void) |
|
|
736 { |
|
|
737 int status = 0; |
|
|
738 |
|
195
|
739 char *s = builtin_string_variable ("PWD"); |
|
529
|
740 if (s) |
|
1
|
741 { |
|
|
742 delete [] user_pref.pwd; |
|
|
743 user_pref.pwd = s; |
|
|
744 } |
|
|
745 else |
|
|
746 { |
|
|
747 warning ("invalid value specified for PWD"); |
|
|
748 status = -1; |
|
|
749 } |
|
|
750 |
|
|
751 return status; |
|
|
752 } |
|
|
753 |
|
|
754 /* |
|
|
755 ;;; Local Variables: *** |
|
|
756 ;;; mode: C++ *** |
|
|
757 ;;; page-delimiter: "^/\\*" *** |
|
|
758 ;;; End: *** |
|
|
759 */ |
