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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 "mappers.h" |
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32 #include "error.h" |
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33 #include "variables.h" |
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34 #include "utils.h" |
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35 |
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36 // The list of user preferences. Values change when global variables |
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37 // change, so we don\'t have to do a variable look up every time we |
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38 // need to check a preference. |
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39 user_preferences user_pref; |
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40 |
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720
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41 // Initialize global user_pref structure. |
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42 |
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831
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43 void |
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44 init_user_prefs (void) |
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45 { |
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46 user_pref.automatic_replot = 0; |
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47 user_pref.define_all_return_values = 0; |
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48 user_pref.do_fortran_indexing = 0; |
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49 user_pref.empty_list_elements_ok = 0; |
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50 user_pref.ignore_function_time_stamp = 0; |
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51 user_pref.implicit_str_to_num_ok = 0; |
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52 user_pref.ok_to_lose_imaginary_part = 0; |
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53 user_pref.output_max_field_width = 0; |
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54 user_pref.output_precision = 0; |
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55 user_pref.page_screen_output = 0; |
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56 user_pref.prefer_column_vectors = 0; |
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57 user_pref.prefer_zero_one_indexing = 0; |
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58 user_pref.print_answer_id_name = 0; |
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59 user_pref.print_empty_dimensions = 0; |
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60 user_pref.propagate_empty_matrices = 0; |
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61 user_pref.read_only_constants = 1; |
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62 user_pref.resize_on_range_error = 0; |
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63 user_pref.return_last_computed_value = 0; |
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64 user_pref.save_precision = 0; |
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65 user_pref.silent_functions = 0; |
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66 user_pref.split_long_rows = 0; |
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67 user_pref.treat_neg_dim_as_zero = 0; |
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68 user_pref.warn_assign_as_truth_value = 0; |
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69 user_pref.warn_comma_in_global_decl = 0; |
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70 user_pref.warn_divide_by_zero = 0; |
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71 user_pref.warn_function_name_clash = 0; |
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72 user_pref.whitespace_in_literal_matrix = 0; |
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73 |
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74 user_pref.default_save_format = 0; |
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75 user_pref.editor = 0; |
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76 user_pref.gnuplot_binary = 0; |
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77 user_pref.imagepath = 0; |
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78 user_pref.info_file = 0; |
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79 user_pref.loadpath = 0; |
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80 user_pref.pager_binary = 0; |
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81 user_pref.ps1 = 0; |
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82 user_pref.ps2 = 0; |
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83 user_pref.ps4 = 0; |
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84 user_pref.pwd = 0; |
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85 } |
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86 |
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87 // Check the value of a string variable to see if it it's ok to do |
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88 // something. |
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89 // |
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90 // return of 1 => always ok. |
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91 // return of 0 => never ok. |
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92 // return of -1 => ok, but give me warning (default). |
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93 |
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94 static int |
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95 check_str_pref (char *var) |
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96 { |
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97 char *val = builtin_string_variable (var); |
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98 int pref = -1; |
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529
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99 if (val) |
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100 { |
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101 if (strncmp (val, "yes", 3) == 0 |
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102 || strncmp (val, "true", 4) == 0) |
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103 pref = 1; |
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104 else if (strncmp (val, "never", 5) == 0 |
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105 || strncmp (val, "no", 2) == 0 |
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106 || strncmp (val, "false", 5) == 0) |
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107 pref = 0; |
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108 } |
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109 return pref; |
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110 } |
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111 |
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661
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112 // Should a replot command be generated automatically each time a plot |
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113 // changes in some way? |
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114 |
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115 int |
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116 automatic_replot (void) |
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117 { |
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118 user_pref.automatic_replot = check_str_pref ("automatic_replot"); |
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119 |
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120 return 0; |
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121 } |
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122 |
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123 |
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124 // Should variables returned from functions have default values if |
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125 // they are otherwise uninitialized? |
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126 |
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430
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127 int |
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128 define_all_return_values (void) |
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430
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129 { |
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130 user_pref.define_all_return_values = |
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131 check_str_pref ("define_all_return_values"); |
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132 |
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430
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133 return 0; |
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134 } |
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135 |
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136 |
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137 // Should we allow assignments like: |
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138 // |
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139 // octave> A(1) = 3; A(2) = 5 |
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140 // |
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141 // for A already defined and a matrix type? |
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142 |
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143 int |
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144 do_fortran_indexing (void) |
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145 { |
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146 user_pref.do_fortran_indexing = |
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147 check_str_pref ("do_fortran_indexing"); |
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148 |
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149 return 0; |
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150 } |
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151 |
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152 |
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153 // Should ignore empty elements in a matrix list (i.e., is an |
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154 // expression like `[[], 1]' ok? |
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155 |
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156 int |
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157 empty_list_elements_ok (void) |
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158 { |
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159 user_pref.empty_list_elements_ok = |
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160 check_str_pref ("empty_list_elements_ok"); |
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161 |
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162 return 0; |
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163 } |
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164 |
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165 |
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166 // Should Octave always check to see if function files have changed |
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167 // since they were last compiled? |
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168 |
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430
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169 int |
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170 ignore_function_time_stamp (void) |
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171 { |
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172 int pref = 0; |
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173 |
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174 char *val = builtin_string_variable ("ignore_function_time_stamp"); |
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175 |
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176 if (val) |
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430
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177 { |
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178 if (strncmp (val, "all", 3) == 0) |
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179 pref = 2; |
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180 if (strncmp (val, "system", 6) == 0) |
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181 pref = 1; |
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182 } |
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183 |
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184 user_pref.ignore_function_time_stamp = pref; |
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185 |
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186 return 0; |
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187 } |
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188 |
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661
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189 |
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190 // Should we allow things like: |
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191 // |
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192 // octave> 'abc' + 0 |
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193 // 97 98 99 |
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194 // |
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195 // to happen? |
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196 |
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197 int |
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198 implicit_str_to_num_ok (void) |
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199 { |
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200 user_pref.implicit_str_to_num_ok = |
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201 check_str_pref ("implicit_str_to_num_ok"); |
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202 |
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203 return 0; |
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204 } |
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205 |
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661
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206 |
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207 // Should we allow silent conversion of complex to real when a real |
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208 // type is what we\'re really looking for? |
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209 |
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210 int |
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211 ok_to_lose_imaginary_part (void) |
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212 { |
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213 user_pref.ok_to_lose_imaginary_part = |
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214 check_str_pref ("ok_to_lose_imaginary_part"); |
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215 |
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216 return 0; |
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217 } |
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218 |
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661
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219 |
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220 // If possible, send all output intended for the screen through the |
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221 // pager. |
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222 |
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430
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223 int |
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224 page_screen_output (void) |
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225 { |
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226 user_pref.page_screen_output = check_str_pref ("page_screen_output"); |
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227 |
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228 return 0; |
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229 } |
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230 |
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661
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231 |
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232 // When doing assignments like: |
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233 // |
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234 // octave> A(1) = 3; A(2) = 5 |
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235 // |
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236 // (for A undefined) should we build column vectors? Returning true |
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237 // only matters when resize_on_range_error is also true. |
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238 |
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239 int |
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240 prefer_column_vectors (void) |
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241 { |
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242 user_pref.prefer_column_vectors = |
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243 check_str_pref ("prefer_column_vectors"); |
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244 |
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245 return 0; |
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246 } |
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247 |
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661
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248 |
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249 // For things like |
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250 // |
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251 // a = [2,3]; a([1,1]) |
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252 // |
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253 // return [2 3] instead of [2 2]. |
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254 |
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255 int |
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256 prefer_zero_one_indexing (void) |
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257 { |
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258 user_pref.prefer_zero_one_indexing = |
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259 check_str_pref ("prefer_zero_one_indexing"); |
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260 |
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261 return 0; |
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262 } |
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263 |
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661
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264 |
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265 // Should we print things like |
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266 // |
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267 // octave> a = [1,2;3,4] |
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268 // a = |
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269 // |
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270 // 1 2 |
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271 // 3 4 |
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272 |
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273 int |
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274 print_answer_id_name (void) |
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275 { |
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276 user_pref.print_answer_id_name = |
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277 check_str_pref ("print_answer_id_name"); |
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278 |
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279 return 0; |
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280 } |
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281 |
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282 |
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283 // Should we also print the dimensions of empty matrices? |
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284 |
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285 int |
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286 print_empty_dimensions (void) |
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287 { |
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288 user_pref.print_empty_dimensions = |
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289 check_str_pref ("print_empty_dimensions"); |
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290 |
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291 return 0; |
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292 } |
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293 |
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294 |
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295 // Should operations on empty matrices return empty matrices or an |
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296 // error? |
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297 |
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298 int |
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299 propagate_empty_matrices (void) |
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300 { |
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301 user_pref.propagate_empty_matrices = |
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302 check_str_pref ("propagate_empty_matrices"); |
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303 |
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304 return 0; |
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305 } |
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306 |
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307 // Should built-in constants always be read only? |
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308 |
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309 int |
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310 read_only_constants (void) |
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311 { |
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312 user_pref.read_only_constants = check_str_pref ("read_only_constants"); |
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313 |
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314 return 0; |
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315 } |
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316 |
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317 // When doing assignments, should we resize matrices if the indices |
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318 // are outside the current bounds? |
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319 |
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320 int |
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321 resize_on_range_error (void) |
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322 { |
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323 user_pref.resize_on_range_error = |
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324 check_str_pref ("resize_on_range_error"); |
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325 |
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326 return 0; |
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327 } |
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328 |
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329 |
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330 // If a function does not return any values explicitly, return the |
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331 // last computed value. |
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332 |
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333 int |
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334 return_last_computed_value (void) |
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335 { |
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336 user_pref.return_last_computed_value = |
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337 check_str_pref ("return_last_computed_value"); |
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338 |
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339 return 0; |
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340 } |
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341 |
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661
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342 |
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343 // Suppress printing results in called functions. |
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344 |
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345 int |
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346 silent_functions (void) |
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347 { |
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348 user_pref.silent_functions = |
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349 check_str_pref ("silent_functions"); |
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350 |
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351 return 0; |
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352 } |
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353 |
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661
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354 |
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355 // Should should big matrices be split into smaller slices for output? |
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356 |
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357 int |
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358 split_long_rows (void) |
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359 { |
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360 user_pref.split_long_rows = check_str_pref ("split_long_rows"); |
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361 |
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362 return 0; |
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363 } |
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364 |
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661
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365 |
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366 // Should things like: |
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367 // |
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368 // octave> ones (-1, 5) |
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369 // |
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370 // result in an empty matrix or an error? |
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371 |
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1
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372 int |
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373 treat_neg_dim_as_zero (void) |
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374 { |
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375 user_pref.treat_neg_dim_as_zero = |
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376 check_str_pref ("treat_neg_dim_as_zero"); |
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377 |
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378 return 0; |
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379 } |
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380 |
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661
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381 |
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382 // Generate a warning for the assignment in things like |
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383 // |
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384 // octave> if (a = 2 < n) |
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385 // |
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386 // but not |
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387 // |
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388 // octave> if ((a = 2) < n) |
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389 |
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430
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390 int |
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391 warn_assign_as_truth_value (void) |
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392 { |
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393 user_pref.warn_assign_as_truth_value = |
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394 check_str_pref ("warn_assign_as_truth_value"); |
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395 |
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396 return 0; |
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397 } |
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398 |
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661
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399 |
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400 // Generate a warning for the comma in things like |
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401 // |
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402 // octave> global a, b = 2 |
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403 |
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1
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404 int |
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405 warn_comma_in_global_decl (void) |
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406 { |
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407 user_pref.warn_comma_in_global_decl = |
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408 check_str_pref ("warn_comma_in_global_decl"); |
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409 |
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410 return 0; |
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411 } |
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412 |
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661
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413 |
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414 // On IEEE machines, allow divide by zero errors to be suppressed. |
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415 |
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1
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416 int |
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417 warn_divide_by_zero (void) |
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418 { |
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419 user_pref.warn_divide_by_zero = check_str_pref ("warn_divide_by_zero"); |
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420 |
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421 return 0; |
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422 } |
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423 |
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1037
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424 // Generate warning if declared function name disagrees with the name |
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425 // of the file in which it is defined. |
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426 |
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427 int |
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428 warn_function_name_clash (void) |
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429 { |
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430 user_pref.warn_function_name_clash = |
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431 check_str_pref ("warn_function_name_clash"); |
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432 |
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433 return 0; |
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434 } |
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435 |
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1093
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436 |
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437 // Should whitespace in a literal matrix list be automatically |
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438 // converted to commas and semicolons? |
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439 // |
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440 // user specifies value of pref |
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441 // -------------- ------------- |
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442 // "ignore" 2 |
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443 // "traditional" 1 |
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444 // anything else 0 |
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445 // |
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446 // Octave will never insert a comma in a literal matrix list if the |
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447 // user specifies "ignore". For example, the statement [1 2] will |
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448 // result in an error instead of being treated the same as [1, 2], and |
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449 // the statement |
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450 // |
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451 // [ 1, 2, |
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452 // 3, 4 ] |
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453 // |
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454 // will result in the vector [1 2 3 4] instead of a matrix. |
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455 // |
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456 // Traditional behavior makes Octave convert spaces to a comma between |
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457 // identifiers and `('. For example, the statement |
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458 // |
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459 // [eye (2)] |
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460 // |
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461 // will be parsed as |
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462 // |
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463 // [eye, (2)] |
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464 // |
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465 // and will result in an error since the `eye' function will be |
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466 // called with no arguments. To get around this, you would have to |
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467 // omit the space between `eye' and the `('. |
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468 // |
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469 // The default value is 0, which results in behavior that is the same |
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470 // as traditional, except that Octave does not convert spaces to a |
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471 // comma between identifiers and `('. For example, the statement |
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472 // |
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473 // [eye (2)] |
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474 // |
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475 // will result in a call to `eye' with the argument `2'. |
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476 |
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477 int |
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478 whitespace_in_literal_matrix (void) |
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479 { |
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480 int pref = 0; |
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481 char *val = builtin_string_variable ("whitespace_in_literal_matrix"); |
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482 if (val) |
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483 { |
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484 if (strncmp (val, "ignore", 6) == 0) |
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485 pref = 2; |
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486 else if (strncmp (val, "traditional", 11) == 0) |
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487 pref = 1; |
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488 } |
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489 user_pref.whitespace_in_literal_matrix = pref; |
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490 return 0; |
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491 } |
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492 |
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493 |
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1
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494 int |
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495 set_output_max_field_width (void) |
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496 { |
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497 int status = 0; |
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498 |
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|
499 static int kludge = 0; |
|
|
500 |
|
|
501 double val; |
|
1086
|
502 if (builtin_real_scalar_variable ("output_max_field_width", val) == 0 |
|
|
503 && ! xisnan (val)) |
|
1
|
504 { |
|
|
505 int ival = NINT (val); |
|
|
506 if (ival > 0 && (double) ival == val) |
|
|
507 { |
|
|
508 user_pref.output_max_field_width= ival; |
|
|
509 return status; |
|
|
510 } |
|
|
511 } |
|
|
512 |
|
|
513 if (kludge == 0) |
|
|
514 kludge++; |
|
|
515 else |
|
|
516 { |
|
|
517 warning ("invalid value specified for output_max_field_width"); |
|
|
518 status = -1; |
|
|
519 } |
|
|
520 |
|
|
521 return status; |
|
|
522 } |
|
|
523 |
|
|
524 int |
|
|
525 set_output_precision (void) |
|
|
526 { |
|
|
527 int status = 0; |
|
|
528 |
|
|
529 static int kludge = 0; |
|
|
530 |
|
|
531 double val; |
|
1086
|
532 if (builtin_real_scalar_variable ("output_precision", val) == 0 |
|
|
533 && ! xisnan (val)) |
|
1
|
534 { |
|
|
535 int ival = NINT (val); |
|
|
536 if (ival >= 0 && (double) ival == val) |
|
|
537 { |
|
|
538 user_pref.output_precision = ival; |
|
|
539 return status; |
|
|
540 } |
|
|
541 } |
|
|
542 |
|
|
543 if (kludge == 0) |
|
|
544 kludge++; |
|
|
545 else |
|
|
546 { |
|
|
547 warning ("invalid value specified for output_precision"); |
|
|
548 status = -1; |
|
|
549 } |
|
|
550 |
|
|
551 return status; |
|
|
552 } |
|
|
553 |
|
|
554 int |
|
275
|
555 set_save_precision (void) |
|
|
556 { |
|
|
557 int status = 0; |
|
|
558 |
|
|
559 static int kludge = 0; |
|
|
560 |
|
|
561 double val; |
|
1086
|
562 if (builtin_real_scalar_variable ("save_precision", val) == 0 |
|
|
563 && ! xisnan (val)) |
|
275
|
564 { |
|
|
565 int ival = NINT (val); |
|
|
566 if (ival >= 0 && (double) ival == val) |
|
|
567 { |
|
|
568 user_pref.save_precision = ival; |
|
|
569 return status; |
|
|
570 } |
|
|
571 } |
|
|
572 |
|
|
573 if (kludge == 0) |
|
|
574 kludge++; |
|
|
575 else |
|
|
576 { |
|
|
577 warning ("invalid value specified for save_precision"); |
|
|
578 status = -1; |
|
|
579 } |
|
|
580 |
|
|
581 return status; |
|
|
582 } |
|
|
583 |
|
|
584 int |
|
430
|
585 sv_editor (void) |
|
1
|
586 { |
|
|
587 int status = 0; |
|
|
588 |
|
430
|
589 char *s = builtin_string_variable ("EDITOR"); |
|
529
|
590 if (s) |
|
1
|
591 { |
|
430
|
592 delete [] user_pref.editor; |
|
|
593 user_pref.editor = s; |
|
1
|
594 } |
|
|
595 else |
|
|
596 { |
|
430
|
597 warning ("invalid value specified for EDITOR"); |
|
|
598 status = -1; |
|
|
599 } |
|
|
600 |
|
|
601 return status; |
|
|
602 } |
|
|
603 |
|
|
604 int |
|
605
|
605 sv_default_save_format (void) |
|
|
606 { |
|
|
607 int status = 0; |
|
|
608 |
|
|
609 char *s = builtin_string_variable ("default_save_format"); |
|
|
610 if (s) |
|
|
611 { |
|
|
612 delete [] user_pref.default_save_format; |
|
|
613 user_pref.default_save_format = s; |
|
|
614 } |
|
|
615 else |
|
|
616 { |
|
|
617 warning ("invalid value specified for default_save_format"); |
|
|
618 status = -1; |
|
|
619 } |
|
|
620 |
|
|
621 return status; |
|
|
622 } |
|
|
623 |
|
|
624 int |
|
430
|
625 sv_gnuplot_binary (void) |
|
|
626 { |
|
|
627 int status = 0; |
|
|
628 |
|
|
629 char *s = builtin_string_variable ("gnuplot_binary"); |
|
529
|
630 if (s) |
|
430
|
631 { |
|
|
632 delete [] user_pref.gnuplot_binary; |
|
|
633 user_pref.gnuplot_binary = s; |
|
|
634 } |
|
|
635 else |
|
|
636 { |
|
|
637 warning ("invalid value specified for gnuplot_binary"); |
|
1
|
638 status = -1; |
|
|
639 } |
|
|
640 |
|
|
641 return status; |
|
|
642 } |
|
|
643 |
|
|
644 int |
|
686
|
645 sv_imagepath (void) |
|
|
646 { |
|
|
647 int status = 0; |
|
|
648 |
|
|
649 char *s = builtin_string_variable ("IMAGEPATH"); |
|
|
650 if (s) |
|
|
651 { |
|
|
652 delete [] user_pref.imagepath; |
|
|
653 user_pref.imagepath = s; |
|
|
654 } |
|
|
655 else |
|
|
656 { |
|
|
657 warning ("invalid value specified for IMAGEPATH"); |
|
|
658 status = -1; |
|
|
659 } |
|
|
660 |
|
|
661 return status; |
|
|
662 } |
|
|
663 |
|
|
664 int |
|
186
|
665 sv_info_file (void) |
|
|
666 { |
|
|
667 int status = 0; |
|
|
668 |
|
195
|
669 char *s = builtin_string_variable ("INFO_FILE"); |
|
529
|
670 if (s) |
|
186
|
671 { |
|
|
672 delete [] user_pref.info_file; |
|
|
673 user_pref.info_file = s; |
|
|
674 } |
|
|
675 else |
|
|
676 { |
|
|
677 warning ("invalid value specified for INFO_FILE"); |
|
|
678 status = -1; |
|
|
679 } |
|
|
680 |
|
|
681 return status; |
|
|
682 } |
|
|
683 |
|
|
684 int |
|
430
|
685 sv_loadpath (void) |
|
195
|
686 { |
|
|
687 int status = 0; |
|
|
688 |
|
430
|
689 char *s = builtin_string_variable ("LOADPATH"); |
|
529
|
690 if (s) |
|
195
|
691 { |
|
430
|
692 delete [] user_pref.loadpath; |
|
|
693 user_pref.loadpath = s; |
|
195
|
694 } |
|
|
695 else |
|
|
696 { |
|
430
|
697 warning ("invalid value specified for LOADPATH"); |
|
|
698 status = -1; |
|
|
699 } |
|
|
700 |
|
|
701 return status; |
|
|
702 } |
|
|
703 |
|
|
704 int |
|
|
705 sv_pager_binary (void) |
|
|
706 { |
|
|
707 int status = 0; |
|
|
708 |
|
|
709 char *s = builtin_string_variable ("PAGER"); |
|
529
|
710 if (s) |
|
430
|
711 { |
|
|
712 delete [] user_pref.pager_binary; |
|
|
713 user_pref.pager_binary = s; |
|
|
714 } |
|
|
715 else |
|
|
716 { |
|
|
717 warning ("invalid value specified for PAGER"); |
|
195
|
718 status = -1; |
|
|
719 } |
|
|
720 |
|
|
721 return status; |
|
|
722 } |
|
|
723 |
|
|
724 int |
|
1
|
725 sv_ps1 (void) |
|
|
726 { |
|
|
727 int status = 0; |
|
|
728 |
|
195
|
729 char *s = builtin_string_variable ("PS1"); |
|
529
|
730 if (s) |
|
1
|
731 { |
|
|
732 delete [] user_pref.ps1; |
|
|
733 user_pref.ps1 = s; |
|
|
734 } |
|
|
735 else |
|
|
736 { |
|
|
737 warning ("invalid value specified for PS1"); |
|
|
738 status = -1; |
|
|
739 } |
|
|
740 |
|
|
741 return status; |
|
|
742 } |
|
|
743 |
|
|
744 int |
|
|
745 sv_ps2 (void) |
|
|
746 { |
|
|
747 int status = 0; |
|
|
748 |
|
195
|
749 char *s = builtin_string_variable ("PS2"); |
|
529
|
750 if (s) |
|
1
|
751 { |
|
|
752 delete [] user_pref.ps2; |
|
|
753 user_pref.ps2 = s; |
|
|
754 } |
|
|
755 else |
|
|
756 { |
|
|
757 warning ("invalid value specified for PS2"); |
|
|
758 status = -1; |
|
|
759 } |
|
|
760 |
|
|
761 return status; |
|
|
762 } |
|
|
763 |
|
|
764 int |
|
1044
|
765 sv_ps4 (void) |
|
|
766 { |
|
|
767 int status = 0; |
|
|
768 |
|
|
769 char *s = builtin_string_variable ("PS4"); |
|
|
770 if (s) |
|
|
771 { |
|
|
772 delete [] user_pref.ps4; |
|
|
773 user_pref.ps4 = s; |
|
|
774 } |
|
|
775 else |
|
|
776 { |
|
|
777 warning ("invalid value specified for PS4"); |
|
|
778 status = -1; |
|
|
779 } |
|
|
780 |
|
|
781 return status; |
|
|
782 } |
|
|
783 |
|
|
784 int |
|
1
|
785 sv_pwd (void) |
|
|
786 { |
|
|
787 int status = 0; |
|
|
788 |
|
195
|
789 char *s = builtin_string_variable ("PWD"); |
|
529
|
790 if (s) |
|
1
|
791 { |
|
|
792 delete [] user_pref.pwd; |
|
|
793 user_pref.pwd = s; |
|
|
794 } |
|
|
795 else |
|
|
796 { |
|
|
797 warning ("invalid value specified for PWD"); |
|
|
798 status = -1; |
|
|
799 } |
|
|
800 |
|
|
801 return status; |
|
|
802 } |
|
|
803 |
|
|
804 /* |
|
|
805 ;;; Local Variables: *** |
|
|
806 ;;; mode: C++ *** |
|
|
807 ;;; page-delimiter: "^/\\*" *** |
|
|
808 ;;; End: *** |
|
|
809 */ |
