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1
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1 /* |
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2 |
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3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
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4 2002, 2003, 2004, 2005, 2006, 2007 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 3 of the License, or (at your |
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11 option) any 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, see |
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20 <http://www.gnu.org/licenses/>. |
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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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1192
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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 <cstdarg> |
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1633
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29 #include <cstring> |
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30 |
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31 #include <sstream> |
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1728
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32 #include <string> |
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33 |
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1352
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34 #include "defun.h" |
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35 #include "error.h" |
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3707
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36 #include "input.h" |
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1742
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37 #include "pager.h" |
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1352
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38 #include "oct-obj.h" |
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5567
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39 #include "oct-map.h" |
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1352
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40 #include "utils.h" |
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2370
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41 #include "ov.h" |
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3707
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42 #include "ov-usr-fcn.h" |
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43 #include "pt-pr-code.h" |
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44 #include "pt-stmt.h" |
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45 #include "toplev.h" |
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46 #include "unwind-prot.h" |
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2370
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47 #include "variables.h" |
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1
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48 |
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2174
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49 // TRUE means that Octave will try to beep obnoxiously before printing |
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50 // error messages. |
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5794
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51 static bool Vbeep_on_error = false; |
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52 |
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3707
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53 // TRUE means that Octave will try to enter the debugger when an error |
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54 // is encountered. This will also inhibit printing of the normal |
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55 // traceback message (you will only see the top-level error message). |
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5794
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56 static bool Vdebug_on_error = false; |
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57 |
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58 // TRUE means that Octave will try to enter the debugger when a warning |
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59 // is encountered. |
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5794
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60 static bool Vdebug_on_warning = false; |
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61 |
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5567
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62 // TRUE means that Octave will try to display a stack trace when a |
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63 // warning is encountered. |
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64 static bool Vbacktrace_on_warning = false; |
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65 |
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66 // TRUE means that Octave will print a verbose warning. Currently unused. |
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67 static bool Vverbose_warning; |
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68 |
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5582
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69 // TRUE means that Octave will print no warnings, but lastwarn will be |
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70 //updated |
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71 static bool Vquiet_warning = false; |
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72 |
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73 // A structure containing (most of) the current state of warnings. |
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74 static Octave_map warning_options; |
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75 |
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76 // The text of the last error message. |
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77 static std::string Vlast_error_message; |
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78 |
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3934
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79 // The text of the last warning message. |
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80 static std::string Vlast_warning_message; |
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81 |
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82 // The last warning message id. |
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83 static std::string Vlast_warning_id; |
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84 |
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85 // The last error message id. |
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86 static std::string Vlast_error_id; |
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87 |
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88 // The last file in which an error occured |
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89 static std::string Vlast_error_file; |
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90 |
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91 // The last function in which an error occured |
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92 static std::string Vlast_error_name; |
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93 |
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94 // The last line in a function at which an error occured |
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95 static int Vlast_error_line = -1; |
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96 |
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97 // The last column in a function at which an error occured |
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98 static int Vlast_error_column = -1; |
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99 |
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143
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100 // Current error state. |
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101 // |
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102 // Valid values: |
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103 // |
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104 // -2: an error has occurred, but don't print any messages. |
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105 // -1: an error has occurred, we are printing a traceback |
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106 // 0: no error |
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107 // 1: an error has occurred |
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108 // |
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109 int error_state = 0; |
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110 |
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111 // Current warning state. |
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112 // |
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113 // Valid values: |
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114 // |
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115 // 0: no warning |
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116 // 1: a warning has occurred |
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117 // |
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118 int warning_state = 0; |
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119 |
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1489
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120 // Tell the error handler whether to print messages, or just store |
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121 // them for later. Used for handling errors in eval() and |
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122 // the `unwind_protect' statement. |
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123 int buffer_error_messages = 0; |
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124 |
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3815
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125 // TRUE means error messages are turned off. |
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126 bool discard_error_messages = false; |
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127 |
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4452
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128 // TRUE means warning messages are turned off. |
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129 bool discard_warning_messages = false; |
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130 |
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3811
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131 // The message buffer. |
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132 static std::ostringstream *error_message_buffer = 0; |
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143
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133 |
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4318
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134 void |
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135 reset_error_handler (void) |
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136 { |
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137 error_state = 0; |
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138 warning_state = 0; |
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4699
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139 buffer_error_messages = 0; |
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4318
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140 discard_error_messages = false; |
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141 } |
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142 |
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5567
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143 static void |
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5794
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144 initialize_warning_options (const std::string& state) |
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5567
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145 { |
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146 warning_options.clear (); |
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147 |
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148 warning_options.assign ("identifier", "all"); |
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149 warning_options.assign ("state", state); |
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150 } |
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151 |
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3491
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152 // Warning messages are never buffered. |
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153 |
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154 static void |
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155 vwarning (const char *name, const char *id, const char *fmt, va_list args) |
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156 { |
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157 if (discard_warning_messages) |
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158 return; |
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159 |
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3491
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160 flush_octave_stdout (); |
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161 |
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162 std::ostringstream output_buf; |
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3491
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163 |
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164 if (name) |
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165 output_buf << name << ": "; |
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166 |
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167 octave_vformat (output_buf, fmt, args); |
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168 |
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169 output_buf << std::endl; |
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170 |
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5775
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171 // FIXME -- we really want to capture the message before it |
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172 // has all the formatting goop attached to it. We probably also |
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173 // want just the message, not the traceback information. |
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174 |
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175 std::string msg_string = output_buf.str (); |
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176 |
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3935
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177 if (! warning_state) |
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178 { |
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179 // This is the first warning in a possible series. |
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180 |
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181 Vlast_warning_id = id; |
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182 Vlast_warning_message = msg_string; |
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183 } |
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3934
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184 |
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185 if (! Vquiet_warning) |
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186 { |
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187 octave_diary << msg_string; |
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188 |
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189 std::cerr << msg_string; |
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190 } |
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3491
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191 } |
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192 |
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193 static void |
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4732
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194 verror (bool save_last_error, std::ostream& os, |
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195 const char *name, const char *id, const char *fmt, va_list args) |
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196 { |
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197 if (discard_error_messages) |
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198 return; |
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199 |
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200 if (! buffer_error_messages) |
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201 flush_octave_stdout (); |
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202 |
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203 bool to_beep_or_not_to_beep_p = Vbeep_on_error && ! error_state; |
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204 |
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205 std::ostringstream output_buf; |
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206 |
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207 if (to_beep_or_not_to_beep_p) |
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208 output_buf << "\a"; |
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209 |
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210 if (name) |
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211 output_buf << name << ": "; |
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212 |
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213 octave_vformat (output_buf, fmt, args); |
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214 |
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215 output_buf << std::endl; |
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216 |
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5775
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217 // FIXME -- we really want to capture the message before it |
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218 // has all the formatting goop attached to it. We probably also |
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219 // want just the message, not the traceback information. |
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220 |
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221 std::string msg_string = output_buf.str (); |
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222 |
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223 if (! error_state && save_last_error) |
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224 { |
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225 // This is the first error in a possible series. |
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226 |
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227 Vlast_error_id = id; |
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228 Vlast_error_message = msg_string; |
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229 |
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230 Vlast_error_line = -1; |
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231 Vlast_error_column = -1; |
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232 Vlast_error_name = std::string (); |
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233 Vlast_error_file = std::string (); |
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234 |
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235 if (curr_statement) |
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236 { |
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237 octave_function *fcn |
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238 = octave_call_stack::caller_user_script_or_function (); |
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239 |
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240 if (fcn) |
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241 { |
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242 Vlast_error_file = fcn->fcn_file_name (); |
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243 Vlast_error_name = fcn->name(); |
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244 Vlast_error_line = curr_statement->line (); |
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245 Vlast_error_column = curr_statement->column (); |
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246 } |
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247 } |
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3935
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248 } |
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249 |
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1489
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250 if (buffer_error_messages) |
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251 { |
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3941
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252 std::string tmp = msg_string; |
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253 |
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254 if (! error_message_buffer) |
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255 { |
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256 error_message_buffer = new std::ostringstream (); |
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257 |
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5775
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258 // FIXME -- this is ugly, but it prevents |
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259 // |
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4699
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260 // eval ("error (\"msg\")", "error (lasterr ())"); |
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261 // |
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262 // from printing `error: ' twice. Assumes that the NAME we |
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263 // have been given doesn't contain `:'. |
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264 |
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3935
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265 size_t pos = msg_string.find (':'); |
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3162
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266 |
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3935
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267 if (pos != NPOS && pos < Vlast_error_message.length () - 2) |
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268 tmp = msg_string.substr (pos+2); |
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1489
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269 } |
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270 |
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3935
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271 *error_message_buffer << tmp; |
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1489
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272 } |
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273 else |
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274 { |
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3935
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275 octave_diary << msg_string; |
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4732
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276 os << msg_string; |
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1489
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277 } |
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1
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278 } |
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279 |
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1266
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280 // Note that we don't actually print any message if the error string |
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281 // is just "" or "\n". This allows error ("") and error ("\n") to |
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282 // just set the error state. |
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283 |
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1005
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284 static void |
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285 error_1 (std::ostream& os, const char *name, const char *id, |
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286 const char *fmt, va_list args) |
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1005
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287 { |
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288 if (error_state != -2) |
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289 { |
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1489
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290 if (fmt) |
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1005
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291 { |
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1489
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292 if (*fmt) |
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1005
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293 { |
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1489
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294 int len = strlen (fmt); |
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295 if (fmt[len - 1] == '\n') |
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1266
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296 { |
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1489
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297 if (len > 1) |
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1266
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298 { |
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1489
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299 char *tmp_fmt = strsave (fmt); |
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300 tmp_fmt[len - 1] = '\0'; |
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5567
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301 verror (true, os, name, id, tmp_fmt, args); |
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1489
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302 delete [] tmp_fmt; |
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303 } |
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1423
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304 |
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1489
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305 error_state = -2; |
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1266
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306 } |
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1489
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307 else |
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5567
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308 verror (true, os, name, id, fmt, args); |
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1005
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309 } |
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310 } |
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1489
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311 else |
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312 panic ("error_1: invalid format"); |
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1423
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313 |
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314 if (! error_state) |
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315 error_state = 1; |
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1005
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316 } |
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317 } |
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318 |
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1
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319 void |
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6338
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320 vmessage (const char *name, const char *fmt, va_list args) |
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321 { |
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322 verror (false, std::cerr, name, "", fmt, args); |
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323 } |
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324 |
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325 void |
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1
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326 message (const char *name, const char *fmt, ...) |
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327 { |
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328 va_list args; |
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329 va_start (args, fmt); |
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6338
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330 vmessage (name, fmt, args); |
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1
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331 va_end (args); |
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332 } |
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333 |
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334 void |
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6338
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335 vmessage_with_id (const char *name, const char *id, const char *fmt, |
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336 va_list args) |
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337 { |
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338 verror (false, std::cerr, name, id, fmt, args); |
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339 } |
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340 |
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341 void |
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5567
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342 message_with_id (const char *name, const char *id, const char *fmt, ...) |
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343 { |
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344 va_list args; |
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345 va_start (args, fmt); |
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6338
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346 vmessage_with_id (name, id, fmt, args); |
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5567
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347 va_end (args); |
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348 } |
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349 |
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350 void |
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351 usage_1 (const char *id, const char *fmt, va_list args) |
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352 { |
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353 verror (true, std::cerr, "usage", id, fmt, args); |
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354 error_state = -1; |
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355 } |
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356 |
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357 void |
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6338
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358 vusage (const char *fmt, va_list args) |
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359 { |
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360 usage_1 ("", fmt, args); |
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361 } |
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362 |
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363 void |
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1
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364 usage (const char *fmt, ...) |
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365 { |
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366 va_list args; |
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367 va_start (args, fmt); |
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6338
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368 vusage (fmt, args); |
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5567
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369 va_end (args); |
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370 } |
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371 |
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372 void |
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6338
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373 vusage_with_id (const char *id, const char *fmt, va_list args) |
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374 { |
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375 usage_1 (id, fmt, args); |
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376 } |
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377 |
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378 void |
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5567
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379 usage_with_id (const char *id, const char *fmt, ...) |
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380 { |
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381 va_list args; |
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382 va_start (args, fmt); |
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6338
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383 vusage_with_id (id, fmt, args); |
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1
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384 va_end (args); |
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385 } |
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386 |
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3707
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387 static void |
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3719
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388 pr_where_2 (const char *fmt, va_list args) |
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389 { |
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390 if (fmt) |
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391 { |
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392 if (*fmt) |
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393 { |
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394 int len = strlen (fmt); |
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395 if (fmt[len - 1] == '\n') |
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396 { |
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397 if (len > 1) |
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398 { |
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399 char *tmp_fmt = strsave (fmt); |
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400 tmp_fmt[len - 1] = '\0'; |
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5567
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401 verror (false, std::cerr, 0, "", tmp_fmt, args); |
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3719
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402 delete [] tmp_fmt; |
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403 } |
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404 } |
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405 else |
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5567
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406 verror (false, std::cerr, 0, "", fmt, args); |
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3719
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407 } |
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408 } |
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409 else |
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410 panic ("pr_where_2: invalid format"); |
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411 } |
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412 |
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413 static void |
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3707
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414 pr_where_1 (const char *fmt, ...) |
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415 { |
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416 va_list args; |
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417 va_start (args, fmt); |
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3719
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418 pr_where_2 (fmt, args); |
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3707
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419 va_end (args); |
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420 } |
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421 |
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422 static void |
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4719
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423 pr_where (const char *name, bool print_code = true) |
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3707
|
424 { |
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425 if (curr_statement) |
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426 { |
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4976
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427 std::string nm; |
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3707
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428 |
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4976
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429 int l = -1; |
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430 int c = -1; |
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431 |
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5744
|
432 octave_function *fcn |
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433 = octave_call_stack::caller_user_script_or_function (); |
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4976
|
434 |
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435 if (fcn) |
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3708
|
436 { |
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5743
|
437 nm = fcn->fcn_file_name (); |
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4976
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438 |
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5743
|
439 if (nm.empty ()) |
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440 nm = fcn->name (); |
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3708
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441 |
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5743
|
442 if (curr_statement) |
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443 { |
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444 l = curr_statement->line (); |
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445 c = curr_statement->column (); |
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4976
|
446 } |
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3708
|
447 } |
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3707
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448 |
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4976
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449 if (nm.empty ()) |
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450 { |
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451 if (l > 0 && c > 0) |
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452 pr_where_1 ("%s: near line %d, column %d:", name, l, c); |
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453 } |
|
3708
|
454 else |
|
4976
|
455 { |
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456 if (l > 0 && c > 0) |
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|
457 pr_where_1 ("%s: in %s near line %d, column %d:", |
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|
458 name, nm.c_str (), l, c); |
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459 else |
|
|
460 pr_where_1 ("%s: in %s", name, nm.c_str ()); |
|
|
461 } |
|
3707
|
462 |
|
4719
|
463 if (print_code) |
|
|
464 { |
|
5775
|
465 // FIXME -- Note that the column number is probably |
|
4719
|
466 // not going to mean much here since the code is being |
|
|
467 // reproduced from the parse tree, and we are only showing |
|
|
468 // one statement even if there were multiple statements on |
|
|
469 // the original source line. |
|
3707
|
470 |
|
5765
|
471 std::ostringstream output_buf; |
|
3708
|
472 |
|
4719
|
473 output_buf << std::endl; |
|
3707
|
474 |
|
4719
|
475 tree_print_code tpc (output_buf, ">>> "); |
|
|
476 |
|
|
477 curr_statement->accept (tpc); |
|
3707
|
478 |
|
5765
|
479 output_buf << std::endl; |
|
3707
|
480 |
|
5765
|
481 std::string msg = output_buf.str (); |
|
3707
|
482 |
|
5765
|
483 pr_where_1 ("%s", msg.c_str ()); |
|
4719
|
484 } |
|
3707
|
485 } |
|
|
486 } |
|
|
487 |
|
6000
|
488 static void |
|
|
489 error_2 (const char *id, const char *fmt, va_list args) |
|
|
490 { |
|
|
491 int init_state = error_state; |
|
|
492 |
|
|
493 error_1 (std::cerr, "error", id, fmt, args); |
|
|
494 |
|
|
495 if ((interactive || forced_interactive) |
|
|
496 && Vdebug_on_error && init_state == 0 |
|
|
497 && octave_call_stack::caller_user_script_or_function ()) |
|
|
498 { |
|
|
499 unwind_protect_bool (Vdebug_on_error); |
|
|
500 Vdebug_on_error = false; |
|
|
501 |
|
|
502 pr_where ("error"); |
|
|
503 |
|
|
504 error_state = 0; |
|
|
505 |
|
|
506 do_keyboard (octave_value_list ()); |
|
|
507 |
|
|
508 unwind_protect::run (); |
|
|
509 } |
|
|
510 } |
|
|
511 |
|
|
512 void |
|
6338
|
513 verror (const char *fmt, va_list args) |
|
|
514 { |
|
|
515 error_2 ("", fmt, args); |
|
|
516 } |
|
|
517 |
|
|
518 void |
|
6000
|
519 error (const char *fmt, ...) |
|
|
520 { |
|
|
521 va_list args; |
|
|
522 va_start (args, fmt); |
|
6338
|
523 verror (fmt, args); |
|
6000
|
524 va_end (args); |
|
|
525 } |
|
|
526 |
|
|
527 void |
|
6338
|
528 verror_with_id (const char *id, const char *fmt, va_list args) |
|
|
529 { |
|
|
530 error_2 (id, fmt, args); |
|
|
531 } |
|
|
532 |
|
|
533 void |
|
6000
|
534 error_with_id (const char *id, const char *fmt, ...) |
|
|
535 { |
|
|
536 va_list args; |
|
|
537 va_start (args, fmt); |
|
6338
|
538 verror_with_id (id, fmt, args); |
|
6000
|
539 va_end (args); |
|
|
540 } |
|
|
541 |
|
5567
|
542 static int |
|
|
543 check_state (const std::string& state) |
|
|
544 { |
|
|
545 // -1: not found |
|
|
546 // 0: found, "off" |
|
|
547 // 1: found, "on" |
|
|
548 // 2: found, "error" |
|
|
549 |
|
|
550 if (state == "off") |
|
|
551 return 0; |
|
|
552 else if (state == "on") |
|
|
553 return 1; |
|
|
554 else if (state == "error") |
|
|
555 return 2; |
|
|
556 else |
|
|
557 return -1; |
|
|
558 } |
|
|
559 |
|
|
560 // For given warning ID, return 0 if warnings are disabled, 1 if |
|
|
561 // enabled, and 2 if this ID should be an error instead of a warning. |
|
|
562 |
|
5781
|
563 int |
|
5567
|
564 warning_enabled (const std::string& id) |
|
1
|
565 { |
|
5567
|
566 int retval = 0; |
|
|
567 |
|
|
568 int all_state = -1; |
|
|
569 int id_state = -1; |
|
|
570 |
|
|
571 octave_idx_type nel = warning_options.numel (); |
|
|
572 |
|
|
573 if (nel > 0) |
|
|
574 { |
|
|
575 Cell identifier = warning_options.contents ("identifier"); |
|
|
576 Cell state = warning_options.contents ("state"); |
|
|
577 |
|
|
578 bool all_found = false; |
|
|
579 bool id_found = false; |
|
|
580 |
|
|
581 for (octave_idx_type i = 0; i < nel; i++) |
|
|
582 { |
|
|
583 octave_value ov = identifier(i); |
|
|
584 std::string ovs = ov.string_value (); |
|
|
585 |
|
|
586 if (! all_found && ovs == "all") |
|
|
587 { |
|
|
588 all_state = check_state (state(i).string_value ()); |
|
|
589 |
|
|
590 if (all_state >= 0) |
|
|
591 all_found = true; |
|
|
592 } |
|
|
593 |
|
|
594 if (! id_found && ovs == id) |
|
|
595 { |
|
|
596 id_state = check_state (state(i).string_value ()); |
|
|
597 |
|
|
598 if (id_state >= 0) |
|
|
599 id_found = true; |
|
|
600 } |
|
|
601 |
|
|
602 if (all_found && id_found) |
|
|
603 break; |
|
|
604 } |
|
|
605 } |
|
|
606 |
|
|
607 if (all_state == -1) |
|
|
608 panic_impossible (); |
|
|
609 |
|
|
610 if (all_state == 0) |
|
|
611 { |
|
|
612 if (id_state >= 0) |
|
|
613 retval = id_state; |
|
|
614 } |
|
|
615 else if (all_state == 1) |
|
|
616 { |
|
|
617 if (id_state == 0 || id_state == 2) |
|
|
618 retval = id_state; |
|
|
619 else |
|
|
620 retval = all_state; |
|
|
621 } |
|
|
622 else if (all_state == 2) |
|
7206
|
623 { |
|
|
624 if (id_state == 0) |
|
|
625 retval= id_state; |
|
|
626 else |
|
|
627 retval = all_state; |
|
|
628 } |
|
5567
|
629 |
|
|
630 return retval; |
|
|
631 } |
|
|
632 |
|
|
633 static void |
|
|
634 warning_1 (const char *id, const char *fmt, va_list args) |
|
|
635 { |
|
|
636 int warn_opt = warning_enabled (id); |
|
|
637 |
|
|
638 if (warn_opt == 2) |
|
|
639 { |
|
|
640 // Handle this warning as an error. |
|
|
641 |
|
5998
|
642 error_2 (id, fmt, args); |
|
5567
|
643 } |
|
|
644 else if (warn_opt == 1) |
|
3934
|
645 { |
|
4014
|
646 if (curr_sym_tab != top_level_sym_tab |
|
5567
|
647 && Vbacktrace_on_warning |
|
4452
|
648 && ! warning_state |
|
|
649 && ! discard_warning_messages) |
|
4719
|
650 pr_where ("warning", false); |
|
3986
|
651 |
|
5567
|
652 vwarning ("warning", id, fmt, args); |
|
3707
|
653 |
|
3935
|
654 warning_state = 1; |
|
|
655 |
|
3934
|
656 if ((interactive || forced_interactive) |
|
5743
|
657 && Vdebug_on_warning |
|
5744
|
658 && octave_call_stack::caller_user_script_or_function ()) |
|
3934
|
659 { |
|
|
660 unwind_protect_bool (Vdebug_on_warning); |
|
|
661 Vdebug_on_warning = false; |
|
3707
|
662 |
|
3934
|
663 do_keyboard (octave_value_list ()); |
|
3707
|
664 |
|
3934
|
665 unwind_protect::run (); |
|
|
666 } |
|
3707
|
667 } |
|
1
|
668 } |
|
|
669 |
|
|
670 void |
|
6338
|
671 vwarning (const char *fmt, va_list args) |
|
|
672 { |
|
|
673 warning_1 ("", fmt, args); |
|
|
674 } |
|
|
675 |
|
|
676 void |
|
5567
|
677 warning (const char *fmt, ...) |
|
|
678 { |
|
|
679 va_list args; |
|
|
680 va_start (args, fmt); |
|
6338
|
681 vwarning (fmt, args); |
|
5567
|
682 va_end (args); |
|
|
683 } |
|
|
684 |
|
|
685 void |
|
6338
|
686 vwarning_with_id (const char *id, const char *fmt, va_list args) |
|
|
687 { |
|
|
688 warning_1 (id, fmt, args); |
|
|
689 } |
|
|
690 |
|
|
691 void |
|
5567
|
692 warning_with_id (const char *id, const char *fmt, ...) |
|
|
693 { |
|
|
694 va_list args; |
|
|
695 va_start (args, fmt); |
|
6338
|
696 vwarning_with_id (id, fmt, args); |
|
5567
|
697 va_end (args); |
|
|
698 } |
|
|
699 |
|
|
700 void |
|
6338
|
701 vparse_error (const char *fmt, va_list args) |
|
|
702 { |
|
|
703 error_1 (std::cerr, 0, "", fmt, args); |
|
|
704 } |
|
|
705 |
|
|
706 void |
|
1005
|
707 parse_error (const char *fmt, ...) |
|
|
708 { |
|
|
709 va_list args; |
|
|
710 va_start (args, fmt); |
|
6338
|
711 vparse_error (fmt, args); |
|
5567
|
712 va_end (args); |
|
|
713 } |
|
|
714 |
|
|
715 void |
|
6338
|
716 vparse_error_with_id (const char *id, const char *fmt, va_list args) |
|
|
717 { |
|
|
718 error_1 (std::cerr, 0, id, fmt, args); |
|
|
719 } |
|
|
720 |
|
|
721 void |
|
5567
|
722 parse_error_with_id (const char *id, const char *fmt, ...) |
|
|
723 { |
|
|
724 va_list args; |
|
|
725 va_start (args, fmt); |
|
6338
|
726 vparse_error_with_id (id, fmt, args); |
|
1
|
727 va_end (args); |
|
|
728 } |
|
|
729 |
|
189
|
730 void |
|
6361
|
731 rethrow_error (const char *id, const char *fmt, ...) |
|
|
732 { |
|
|
733 va_list args; |
|
|
734 va_start (args, fmt); |
|
6640
|
735 error_1 (std::cerr, 0, id, fmt, args); |
|
6361
|
736 va_end (args); |
|
|
737 } |
|
|
738 |
|
|
739 void |
|
1
|
740 panic (const char *fmt, ...) |
|
|
741 { |
|
|
742 va_list args; |
|
|
743 va_start (args, fmt); |
|
4699
|
744 buffer_error_messages = 0; |
|
3815
|
745 discard_error_messages = false; |
|
5567
|
746 verror (false, std::cerr, "panic", "", fmt, args); |
|
1
|
747 va_end (args); |
|
|
748 abort (); |
|
|
749 } |
|
|
750 |
|
4732
|
751 static void |
|
|
752 defun_usage_message_1 (const char *fmt, ...) |
|
|
753 { |
|
|
754 va_list args; |
|
|
755 va_start (args, fmt); |
|
5567
|
756 error_1 (octave_stdout, 0, "", fmt, args); |
|
4732
|
757 va_end (args); |
|
|
758 } |
|
|
759 |
|
|
760 void |
|
|
761 defun_usage_message (const std::string& msg) |
|
|
762 { |
|
|
763 defun_usage_message_1 ("%s", msg.c_str ()); |
|
|
764 } |
|
|
765 |
|
5567
|
766 typedef void (*error_fun)(const char *, const char *, ...); |
|
1489
|
767 |
|
2086
|
768 extern octave_value_list Fsprintf (const octave_value_list&, int); |
|
1489
|
769 |
|
3934
|
770 static std::string |
|
5567
|
771 handle_message (error_fun f, const char *id, const char *msg, |
|
|
772 const octave_value_list& args) |
|
528
|
773 { |
|
3934
|
774 std::string retval; |
|
528
|
775 |
|
3523
|
776 std::string tstr; |
|
1728
|
777 |
|
528
|
778 int nargin = args.length (); |
|
|
779 |
|
2745
|
780 if (nargin > 0) |
|
528
|
781 { |
|
3066
|
782 octave_value arg; |
|
|
783 |
|
|
784 if (nargin > 1) |
|
|
785 { |
|
|
786 octave_value_list tmp = Fsprintf (args, 1); |
|
|
787 arg = tmp(0); |
|
|
788 } |
|
|
789 else |
|
|
790 arg = args(0); |
|
2745
|
791 |
|
|
792 if (arg.is_defined ()) |
|
528
|
793 { |
|
2745
|
794 if (arg.is_string ()) |
|
|
795 { |
|
|
796 tstr = arg.string_value (); |
|
|
797 msg = tstr.c_str (); |
|
|
798 |
|
|
799 if (! msg) |
|
|
800 return retval; |
|
|
801 } |
|
|
802 else if (arg.is_empty ()) |
|
528
|
803 return retval; |
|
|
804 } |
|
|
805 } |
|
|
806 |
|
1489
|
807 // Ugh. |
|
|
808 |
|
|
809 int len = strlen (msg); |
|
|
810 if (msg[len - 1] == '\n') |
|
|
811 { |
|
|
812 if (len > 1) |
|
|
813 { |
|
|
814 char *tmp_msg = strsave (msg); |
|
|
815 tmp_msg[len - 1] = '\0'; |
|
5567
|
816 f (id, "%s\n", tmp_msg); |
|
3934
|
817 retval = tmp_msg; |
|
1489
|
818 delete [] tmp_msg; |
|
|
819 } |
|
|
820 } |
|
|
821 else |
|
3934
|
822 { |
|
5567
|
823 f (id, "%s", msg); |
|
3934
|
824 retval = msg; |
|
|
825 } |
|
528
|
826 |
|
|
827 return retval; |
|
|
828 } |
|
|
829 |
|
6361
|
830 DEFUN (rethrow, args, , |
|
|
831 "-*- texinfo -*-\n\ |
|
|
832 @deftypefn {Built-in Function} {} rethrow (@var{err})\n\ |
|
|
833 Reissues a previous error as defined by @var{err}. @var{err} is a structure\n\ |
|
|
834 that must contain at least the 'message' and 'identifier' fields. @var{err}\n\ |
|
|
835 can also contain a field 'stack' that gives information on the assumed\n\ |
|
|
836 location of the error. Typically @var{err} is returned from\n\ |
|
|
837 @code{lasterror}.\n\ |
|
|
838 @seealso{lasterror, lasterr, error}\n\ |
|
|
839 @end deftypefn") |
|
|
840 { |
|
|
841 octave_value retval; |
|
|
842 int nargin = args.length(); |
|
|
843 |
|
|
844 if (nargin != 1) |
|
6959
|
845 print_usage (); |
|
6361
|
846 else |
|
|
847 { |
|
6483
|
848 Octave_map err = args(0).map_value (); |
|
6361
|
849 |
|
6483
|
850 if (! error_state) |
|
6361
|
851 { |
|
6483
|
852 if (err.contains ("message") && err.contains ("identifier")) |
|
6361
|
853 { |
|
6483
|
854 std::string msg = err.contents("message")(0).string_value (); |
|
|
855 std::string id = err.contents("identifier")(0).string_value (); |
|
6361
|
856 int len = msg.length(); |
|
|
857 std::string file; |
|
|
858 std::string nm; |
|
|
859 int l = -1; |
|
|
860 int c = -1; |
|
|
861 |
|
6483
|
862 if (err.contains ("stack")) |
|
6361
|
863 { |
|
6483
|
864 Octave_map err_stack = err.contents("stack")(0).map_value (); |
|
|
865 |
|
6640
|
866 if (err_stack.numel () > 0) |
|
|
867 { |
|
|
868 if (err_stack.contains ("file")) |
|
|
869 file = err_stack.contents("file")(0).string_value (); |
|
6483
|
870 |
|
6640
|
871 if (err_stack.contains ("name")) |
|
|
872 nm = err_stack.contents("name")(0).string_value (); |
|
6483
|
873 |
|
6640
|
874 if (err_stack.contains ("line")) |
|
|
875 l = err_stack.contents("line")(0).nint_value (); |
|
|
876 |
|
|
877 if (err_stack.contains ("column")) |
|
|
878 c = err_stack.contents("column")(0).nint_value (); |
|
|
879 } |
|
6361
|
880 } |
|
|
881 |
|
|
882 // Ugh. |
|
6483
|
883 char *tmp_msg = strsave (msg.c_str ()); |
|
6361
|
884 if (tmp_msg[len-1] == '\n') |
|
|
885 { |
|
|
886 if (len > 1) |
|
|
887 { |
|
|
888 tmp_msg[len - 1] = '\0'; |
|
6483
|
889 rethrow_error (id.c_str (), "%s\n", tmp_msg); |
|
6361
|
890 } |
|
|
891 } |
|
|
892 else |
|
6483
|
893 rethrow_error (id.c_str (), "%s", tmp_msg); |
|
6361
|
894 delete [] tmp_msg; |
|
|
895 |
|
|
896 // FIXME: Need to restore the stack as rethrow_error sets it? |
|
|
897 Vlast_error_file = file; |
|
|
898 Vlast_error_name = nm; |
|
|
899 Vlast_error_line = l; |
|
|
900 Vlast_error_column = c; |
|
|
901 |
|
6483
|
902 if (err.contains ("stack")) |
|
6361
|
903 { |
|
|
904 if (file.empty ()) |
|
|
905 { |
|
|
906 if (nm.empty ()) |
|
|
907 { |
|
|
908 if (l > 0) |
|
6483
|
909 { |
|
|
910 if (c > 0) |
|
|
911 pr_where_1 ("error: near line %d, column %d", |
|
|
912 l, c); |
|
|
913 else |
|
|
914 pr_where_1 ("error: near line %d", l); |
|
|
915 } |
|
6361
|
916 } |
|
|
917 else |
|
|
918 { |
|
|
919 if (l > 0) |
|
6483
|
920 { |
|
|
921 if (c > 0) |
|
|
922 pr_where_1 ("error: called from `%s' near line %d, column %d", |
|
|
923 nm.c_str (), l, c); |
|
|
924 else |
|
|
925 pr_where_1 ("error: called from `%d' near line %d", nm.c_str (), l); |
|
|
926 } |
|
6361
|
927 } |
|
|
928 } |
|
|
929 else |
|
|
930 { |
|
|
931 if (nm.empty ()) |
|
|
932 { |
|
|
933 if (l > 0) |
|
6483
|
934 { |
|
|
935 if (c > 0) |
|
|
936 pr_where_1 ("error: in file %s near line %d, column %d", |
|
|
937 file.c_str (), l, c); |
|
|
938 else |
|
|
939 pr_where_1 ("error: in file %s near line %d", file.c_str (), l); |
|
|
940 } |
|
6361
|
941 } |
|
|
942 else |
|
|
943 { |
|
|
944 if (l > 0) |
|
6483
|
945 { |
|
|
946 if (c > 0) |
|
|
947 pr_where_1 ("error: called from `%s' in file %s near line %d, column %d", |
|
|
948 nm.c_str (), file.c_str (), l, c); |
|
|
949 else |
|
|
950 pr_where_1 ("error: called from `%d' in file %s near line %d", nm.c_str (), file.c_str (), l); |
|
|
951 } |
|
6361
|
952 } |
|
|
953 } |
|
|
954 } |
|
|
955 } |
|
|
956 else |
|
|
957 error ("rethrow: structure must contain the fields 'message and 'identifier'"); |
|
|
958 } |
|
|
959 } |
|
|
960 return retval; |
|
|
961 } |
|
|
962 |
|
1957
|
963 DEFUN (error, args, , |
|
3373
|
964 "-*- texinfo -*-\n\ |
|
|
965 @deftypefn {Built-in Function} {} error (@var{template}, @dots{})\n\ |
|
5781
|
966 Format the optional arguments under the control of the template string\n\ |
|
|
967 @var{template} using the same rules as the @code{printf} family of\n\ |
|
|
968 functions (@pxref{Formatted Output}) and print the resulting message\n\ |
|
|
969 on the @code{stderr} stream. The message is prefixed by the character\n\ |
|
|
970 string @samp{error: }.\n\ |
|
3373
|
971 \n\ |
|
|
972 Calling @code{error} also sets Octave's internal error state such that\n\ |
|
|
973 control will return to the top level without evaluating any more\n\ |
|
|
974 commands. This is useful for aborting from functions or scripts.\n\ |
|
897
|
975 \n\ |
|
3373
|
976 If the error message does not end with a new line character, Octave will\n\ |
|
|
977 print a traceback of all the function calls leading to the error. For\n\ |
|
|
978 example, given the following function definitions:\n\ |
|
|
979 \n\ |
|
|
980 @example\n\ |
|
|
981 @group\n\ |
|
6671
|
982 function f () g (); end\n\ |
|
|
983 function g () h (); end\n\ |
|
3373
|
984 function h () nargin == 1 || error (\"nargin != 1\"); end\n\ |
|
|
985 @end group\n\ |
|
|
986 @end example\n\ |
|
1489
|
987 \n\ |
|
3373
|
988 @noindent\n\ |
|
|
989 calling the function @code{f} will result in a list of messages that\n\ |
|
|
990 can help you to quickly locate the exact location of the error:\n\ |
|
1489
|
991 \n\ |
|
7031
|
992 @smallexample\n\ |
|
3373
|
993 @group\n\ |
|
|
994 f ()\n\ |
|
|
995 error: nargin != 1\n\ |
|
|
996 error: evaluating index expression near line 1, column 30\n\ |
|
|
997 error: evaluating binary operator `||' near line 1, column 27\n\ |
|
|
998 error: called from `h'\n\ |
|
|
999 error: called from `g'\n\ |
|
|
1000 error: called from `f'\n\ |
|
|
1001 @end group\n\ |
|
7031
|
1002 @end smallexample\n\ |
|
3373
|
1003 \n\ |
|
|
1004 If the error message ends in a new line character, Octave will print the\n\ |
|
|
1005 message but will not display any traceback messages as it returns\n\ |
|
|
1006 control to the top level. For example, modifying the error message\n\ |
|
|
1007 in the previous example to end in a new line causes Octave to only print\n\ |
|
|
1008 a single message:\n\ |
|
|
1009 \n\ |
|
|
1010 @example\n\ |
|
|
1011 @group\n\ |
|
|
1012 function h () nargin == 1 || error (\"nargin != 1\\n\"); end\n\ |
|
|
1013 f ()\n\ |
|
|
1014 error: nargin != 1\n\ |
|
|
1015 @end group\n\ |
|
|
1016 @end example\n\ |
|
|
1017 @end deftypefn") |
|
897
|
1018 { |
|
5775
|
1019 // FIXME -- need to extract and pass message id to |
|
5567
|
1020 // handle_message. |
|
|
1021 |
|
3934
|
1022 octave_value_list retval; |
|
5567
|
1023 handle_message (error_with_id, "", "unspecified error", args); |
|
3934
|
1024 return retval; |
|
1489
|
1025 } |
|
897
|
1026 |
|
5567
|
1027 DEFCMD (warning, args, nargout, |
|
3373
|
1028 "-*- texinfo -*-\n\ |
|
5781
|
1029 @deftypefn {Built-in Function} {} warning (@var{template}, @dots{})\n\ |
|
|
1030 @deftypefnx {Built-in Function} {} warning (@var{id}, @var{template})\n\ |
|
|
1031 Format the optional arguments under the control of the template string\n\ |
|
|
1032 @var{template} using the same rules as the @code{printf} family of\n\ |
|
|
1033 functions (@pxref{Formatted Output}) and print the resulting message\n\ |
|
|
1034 on the @code{stderr} stream. The message is prefixed by the character\n\ |
|
|
1035 string @samp{warning: }.\n\ |
|
|
1036 You should use this function when you want to notify the user\n\ |
|
3600
|
1037 of an unusual condition, but only when it makes sense for your program\n\ |
|
|
1038 to go on.\n\ |
|
5781
|
1039 \n\ |
|
|
1040 The optional message identifier allows users to enable or disable\n\ |
|
|
1041 warnings tagged by @var{id}. The special identifier @samp{\"all\"} may\n\ |
|
|
1042 be used to set the state of all warnings.\n\ |
|
|
1043 \n\ |
|
|
1044 @deftypefnx {Built-in Function} {} warning (\"on\", @var{id})\n\ |
|
|
1045 @deftypefnx {Built-in Function} {} warning (\"off\", @var{id})\n\ |
|
|
1046 @deftypefnx {Built-in Function} {} warning (\"error\", @var{id})\n\ |
|
|
1047 @deftypefnx {Built-in Function} {} warning (\"query\", @var{id})\n\ |
|
6653
|
1048 Set or query the state of a particular warning using the identifier\n\ |
|
5781
|
1049 @var{id}. If the identifier is omitted, a value of @samp{\"all\"} is\n\ |
|
|
1050 assumed. If you set the state of a warning to @samp{\"error\"}, the\n\ |
|
|
1051 warning named by @var{id} is handled as if it were an error instead.\n\ |
|
5783
|
1052 @seealso{warning_ids}\n\ |
|
3373
|
1053 @end deftypefn") |
|
1489
|
1054 { |
|
5567
|
1055 octave_value retval; |
|
3934
|
1056 |
|
5567
|
1057 int nargin = args.length (); |
|
|
1058 int argc = nargin + 1; |
|
3934
|
1059 |
|
3935
|
1060 bool done = false; |
|
3934
|
1061 |
|
5567
|
1062 if (argc > 1 && args.all_strings_p ()) |
|
3935
|
1063 { |
|
|
1064 string_vector argv = args.make_argv ("warning"); |
|
|
1065 |
|
|
1066 if (! error_state) |
|
3934
|
1067 { |
|
5567
|
1068 std::string arg1 = argv(1); |
|
|
1069 std::string arg2 = "all"; |
|
|
1070 |
|
|
1071 if (argc == 3) |
|
|
1072 arg2 = argv(2); |
|
|
1073 |
|
|
1074 if (arg1 == "on" || arg1 == "off" || arg1 == "error") |
|
3934
|
1075 { |
|
5567
|
1076 Octave_map old_warning_options = warning_options; |
|
|
1077 |
|
|
1078 if (arg2 == "all") |
|
|
1079 { |
|
|
1080 Octave_map tmp; |
|
3934
|
1081 |
|
7202
|
1082 Cell id (1, 1); |
|
|
1083 Cell st (1, 1); |
|
|
1084 |
|
|
1085 id(0) = arg2; |
|
|
1086 st(0) = arg1; |
|
|
1087 |
|
|
1088 // Since internal Octave functions are not |
|
|
1089 // compatible, turning all warnings into errors |
|
|
1090 // should leave the state of |
|
|
1091 // Octave:matlab-incompatible alone. |
|
|
1092 |
|
|
1093 if (arg1 == "error" |
|
|
1094 && warning_options.contains ("identifier")) |
|
|
1095 { |
|
7206
|
1096 octave_idx_type n = 1; |
|
|
1097 |
|
7202
|
1098 Cell tid = warning_options.contents ("identifier"); |
|
|
1099 Cell tst = warning_options.contents ("state"); |
|
|
1100 |
|
|
1101 for (octave_idx_type i = 0; i < tid.numel (); i++) |
|
|
1102 { |
|
|
1103 octave_value vid = tid(i); |
|
|
1104 |
|
7206
|
1105 if (vid.is_string ()) |
|
7202
|
1106 { |
|
7206
|
1107 std::string key = vid.string_value (); |
|
7202
|
1108 |
|
7206
|
1109 if (key == "Octave:matlab-incompatible" |
|
|
1110 || key == "Octave:single-quote-string") |
|
|
1111 { |
|
|
1112 id.resize (dim_vector (1, n+1)); |
|
|
1113 st.resize (dim_vector (1, n+1)); |
|
7202
|
1114 |
|
7206
|
1115 id(n) = tid(i); |
|
|
1116 st(n) = tst(i); |
|
|
1117 |
|
|
1118 n++; |
|
|
1119 } |
|
7202
|
1120 } |
|
|
1121 } |
|
|
1122 } |
|
|
1123 |
|
|
1124 tmp.assign ("identifier", id); |
|
|
1125 tmp.assign ("state", st); |
|
5567
|
1126 |
|
|
1127 warning_options = tmp; |
|
|
1128 |
|
3935
|
1129 done = true; |
|
|
1130 } |
|
5567
|
1131 else if (arg2 == "backtrace") |
|
|
1132 { |
|
|
1133 if (arg1 != "error") |
|
|
1134 { |
|
|
1135 Vbacktrace_on_warning = (arg1 == "on"); |
|
|
1136 done = true; |
|
|
1137 } |
|
|
1138 } |
|
|
1139 else if (arg2 == "debug") |
|
|
1140 { |
|
|
1141 if (arg1 != "error") |
|
|
1142 { |
|
5794
|
1143 Vdebug_on_warning = (arg1 == "on"); |
|
5567
|
1144 done = true; |
|
|
1145 } |
|
|
1146 } |
|
|
1147 else if (arg2 == "verbose") |
|
|
1148 { |
|
|
1149 if (arg1 != "error") |
|
|
1150 { |
|
|
1151 Vverbose_warning = (arg1 == "on"); |
|
|
1152 done = true; |
|
|
1153 } |
|
|
1154 } |
|
5582
|
1155 else if (arg2 == "quiet") |
|
|
1156 { |
|
|
1157 if (arg1 != "error") |
|
|
1158 { |
|
|
1159 Vquiet_warning = (arg1 == "on"); |
|
|
1160 done = true; |
|
|
1161 } |
|
|
1162 } |
|
5567
|
1163 else |
|
3935
|
1164 { |
|
5567
|
1165 if (arg2 == "last") |
|
|
1166 arg2 = Vlast_warning_id; |
|
|
1167 |
|
|
1168 if (arg2 == "all") |
|
5794
|
1169 initialize_warning_options (arg1); |
|
5567
|
1170 else |
|
|
1171 { |
|
|
1172 Cell ident = warning_options.contents ("identifier"); |
|
|
1173 Cell state = warning_options.contents ("state"); |
|
|
1174 |
|
|
1175 octave_idx_type nel = ident.numel (); |
|
|
1176 |
|
|
1177 bool found = false; |
|
|
1178 |
|
|
1179 for (octave_idx_type i = 0; i < nel; i++) |
|
|
1180 { |
|
|
1181 if (ident(i).string_value () == arg2) |
|
|
1182 { |
|
5775
|
1183 // FIXME -- if state for "all" is |
|
5567
|
1184 // same as arg1, we can simply remove the |
|
|
1185 // item from the list. |
|
|
1186 |
|
|
1187 state(i) = arg1; |
|
|
1188 warning_options.assign ("state", state); |
|
|
1189 found = true; |
|
|
1190 break; |
|
|
1191 } |
|
|
1192 } |
|
|
1193 |
|
|
1194 if (! found) |
|
|
1195 { |
|
5775
|
1196 // FIXME -- if state for "all" is |
|
5567
|
1197 // same as arg1, we don't need to do anything. |
|
|
1198 |
|
|
1199 ident.resize (dim_vector (1, nel+1)); |
|
|
1200 state.resize (dim_vector (1, nel+1)); |
|
|
1201 |
|
|
1202 ident(nel) = arg2; |
|
|
1203 state(nel) = arg1; |
|
|
1204 |
|
|
1205 warning_options.clear (); |
|
|
1206 |
|
|
1207 warning_options.assign ("identifier", ident); |
|
|
1208 warning_options.assign ("state", state); |
|
|
1209 } |
|
|
1210 } |
|
|
1211 |
|
3935
|
1212 done = true; |
|
|
1213 } |
|
5567
|
1214 |
|
|
1215 if (done && nargout > 0) |
|
6427
|
1216 retval = old_warning_options; |
|
5567
|
1217 } |
|
|
1218 else if (arg1 == "query") |
|
|
1219 { |
|
|
1220 if (arg2 == "all") |
|
|
1221 retval = warning_options; |
|
|
1222 else if (arg2 == "backtrace" || arg2 == "debug" |
|
5582
|
1223 || arg2 == "verbose" || arg2 == "quiet") |
|
5567
|
1224 { |
|
|
1225 Octave_map tmp; |
|
|
1226 tmp.assign ("identifier", arg2); |
|
|
1227 if (arg2 == "backtrace") |
|
|
1228 tmp.assign ("state", Vbacktrace_on_warning ? "on" : "off"); |
|
|
1229 else if (arg2 == "debug") |
|
|
1230 tmp.assign ("state", Vdebug_on_warning ? "on" : "off"); |
|
5582
|
1231 else if (arg2 == "verbose") |
|
|
1232 tmp.assign ("state", Vverbose_warning ? "on" : "off"); |
|
5567
|
1233 else |
|
5582
|
1234 tmp.assign ("state", Vquiet_warning ? "on" : "off"); |
|
|
1235 |
|
|
1236 retval = tmp; |
|
5567
|
1237 } |
|
|
1238 else |
|
3935
|
1239 { |
|
5567
|
1240 if (arg2 == "last") |
|
|
1241 arg2 = Vlast_warning_id; |
|
|
1242 |
|
|
1243 Cell ident = warning_options.contents ("identifier"); |
|
|
1244 Cell state = warning_options.contents ("state"); |
|
|
1245 |
|
|
1246 octave_idx_type nel = ident.numel (); |
|
|
1247 |
|
|
1248 bool found = false; |
|
|
1249 |
|
|
1250 std::string val; |
|
|
1251 |
|
|
1252 for (octave_idx_type i = 0; i < nel; i++) |
|
|
1253 { |
|
|
1254 if (ident(i).string_value () == arg2) |
|
|
1255 { |
|
|
1256 val = state(i).string_value (); |
|
|
1257 found = true; |
|
|
1258 break; |
|
|
1259 } |
|
|
1260 } |
|
|
1261 |
|
5781
|
1262 if (! found) |
|
|
1263 { |
|
|
1264 for (octave_idx_type i = 0; i < nel; i++) |
|
|
1265 { |
|
|
1266 if (ident(i).string_value () == "all") |
|
|
1267 { |
|
|
1268 val = state(i).string_value (); |
|
|
1269 found = true; |
|
|
1270 break; |
|
|
1271 } |
|
|
1272 } |
|
|
1273 } |
|
|
1274 |
|
5567
|
1275 if (found) |
|
|
1276 { |
|
|
1277 Octave_map tmp; |
|
|
1278 |
|
|
1279 tmp.assign ("identifier", arg2); |
|
|
1280 tmp.assign ("state", val); |
|
|
1281 |
|
|
1282 retval = tmp; |
|
|
1283 } |
|
|
1284 else |
|
5781
|
1285 error ("warning: unable to find default warning state!"); |
|
3935
|
1286 } |
|
5567
|
1287 |
|
|
1288 done = true; |
|
3935
|
1289 } |
|
3934
|
1290 } |
|
|
1291 } |
|
5567
|
1292 else if (argc == 1) |
|
|
1293 { |
|
|
1294 retval = warning_options; |
|
3934
|
1295 |
|
5567
|
1296 done = true; |
|
|
1297 } |
|
|
1298 else if (argc == 2) |
|
|
1299 { |
|
|
1300 octave_value arg = args(0); |
|
|
1301 |
|
|
1302 Octave_map old_warning_options = warning_options; |
|
|
1303 |
|
|
1304 if (arg.is_map ()) |
|
|
1305 { |
|
|
1306 Octave_map m = arg.map_value (); |
|
|
1307 |
|
|
1308 if (m.contains ("identifier") && m.contains ("state")) |
|
6427
|
1309 warning_options = m; |
|
5567
|
1310 else |
|
|
1311 error ("warning: expecting structure with fields `identifier' and `state'"); |
|
|
1312 |
|
|
1313 done = true; |
|
|
1314 |
|
|
1315 if (nargout > 0) |
|
|
1316 retval = old_warning_options; |
|
|
1317 } |
|
|
1318 } |
|
|
1319 |
|
|
1320 if (! (error_state || done)) |
|
3935
|
1321 { |
|
5567
|
1322 octave_value_list nargs = args; |
|
|
1323 |
|
|
1324 std::string id; |
|
|
1325 |
|
|
1326 if (nargin > 1) |
|
|
1327 { |
|
|
1328 std::string arg1 = args(0).string_value (); |
|
|
1329 |
|
|
1330 if (! error_state) |
|
|
1331 { |
|
|
1332 if (arg1.find ('%') == NPOS) |
|
|
1333 { |
|
|
1334 id = arg1; |
|
|
1335 |
|
|
1336 nargs.resize (nargin-1); |
|
|
1337 |
|
|
1338 for (int i = 1; i < nargin; i++) |
|
|
1339 nargs(i-1) = args(i); |
|
|
1340 } |
|
|
1341 } |
|
|
1342 else |
|
|
1343 return retval; |
|
|
1344 } |
|
|
1345 |
|
|
1346 // handle_message. |
|
|
1347 |
|
3935
|
1348 std::string prev_msg = Vlast_warning_message; |
|
|
1349 |
|
5567
|
1350 std::string curr_msg = handle_message (warning_with_id, id.c_str (), |
|
|
1351 "unspecified warning", nargs); |
|
3935
|
1352 |
|
|
1353 if (nargout > 0) |
|
5567
|
1354 retval = prev_msg; |
|
3935
|
1355 } |
|
|
1356 |
|
3934
|
1357 return retval; |
|
|
1358 } |
|
|
1359 |
|
5904
|
1360 void |
|
5794
|
1361 disable_warning (const std::string& id) |
|
|
1362 { |
|
|
1363 octave_value_list args; |
|
|
1364 |
|
|
1365 args(1) = id; |
|
|
1366 args(0) = "off"; |
|
|
1367 |
|
|
1368 Fwarning (args, 0); |
|
|
1369 } |
|
|
1370 |
|
|
1371 void |
|
|
1372 initialize_default_warning_state (void) |
|
|
1373 { |
|
|
1374 initialize_warning_options ("on"); |
|
|
1375 |
|
|
1376 // Most people will want to have the following disabled. |
|
|
1377 |
|
|
1378 disable_warning ("Octave:array-to-scalar"); |
|
|
1379 disable_warning ("Octave:array-to-vector"); |
|
|
1380 disable_warning ("Octave:empty-list-elements"); |
|
|
1381 disable_warning ("Octave:fortran-indexing"); |
|
|
1382 disable_warning ("Octave:imag-to-real"); |
|
|
1383 disable_warning ("Octave:matlab-incompatible"); |
|
|
1384 disable_warning ("Octave:missing-semicolon"); |
|
|
1385 disable_warning ("Octave:neg-dim-as-zero"); |
|
|
1386 disable_warning ("Octave:resize-on-range-error"); |
|
|
1387 disable_warning ("Octave:separator-insert"); |
|
|
1388 disable_warning ("Octave:single-quote-string"); |
|
|
1389 disable_warning ("Octave:str-to-num"); |
|
|
1390 disable_warning ("Octave:string-concat"); |
|
|
1391 disable_warning ("Octave:variable-switch-label"); |
|
|
1392 } |
|
|
1393 |
|
6361
|
1394 DEFUN (lasterror, args, , |
|
|
1395 "-*- texinfo -*-\n\ |
|
|
1396 @deftypefn {Built-in Function} {@var{err} =} lasterror (@var{err})\n\ |
|
|
1397 @deftypefnx {Built-in Function} {} lasterror ('reset')\n\ |
|
|
1398 Returns or sets the last error message. Called without any arguments\n\ |
|
|
1399 returns a structure containing the last error message, as well as other\n\ |
|
|
1400 information related to this error. The elements of this structure are:\n\ |
|
|
1401 \n\ |
|
|
1402 @table @asis\n\ |
|
|
1403 @item 'message'\n\ |
|
|
1404 The text of the last error message\n\ |
|
|
1405 @item 'identifier'\n\ |
|
|
1406 The message identifier of this error message\n\ |
|
|
1407 @item 'stack'\n\ |
|
7001
|
1408 A structure containing information on where the message occurred. This might\n\ |
|
6361
|
1409 be an empty structure if this in the case where this information can not\n\ |
|
|
1410 be obtained. The fields of this structure are:\n\ |
|
|
1411 \n\ |
|
|
1412 @table @asis\n\ |
|
|
1413 @item 'file'\n\ |
|
|
1414 The name of the file where the error occurred\n\ |
|
|
1415 @item 'name'\n\ |
|
7001
|
1416 The name of function in which the error occurred\n\ |
|
6361
|
1417 @item 'line'\n\ |
|
7001
|
1418 The line number at which the error occurred\n\ |
|
6361
|
1419 @item 'column'\n\ |
|
|
1420 An optional field with the column number at which the error occurred\n\ |
|
|
1421 @end table\n\ |
|
|
1422 @end table\n\ |
|
|
1423 \n\ |
|
|
1424 The @var{err} structure may also be passed to @code{lasterror} to set the\n\ |
|
|
1425 information about the last error. The only constraint on @var{err} in that\n\ |
|
|
1426 case is that it is a scalar structure. Any fields of @var{err} that match\n\ |
|
|
1427 the above are set to the value passed in @var{err}, while other fields are\n\ |
|
|
1428 set to their default values.\n\ |
|
|
1429 \n\ |
|
|
1430 If @code{lasterror} is called with the argument 'reset', all values take\n\ |
|
|
1431 their default values.\n\ |
|
|
1432 @end deftypefn") |
|
|
1433 { |
|
|
1434 octave_value retval; |
|
|
1435 int nargin = args.length(); |
|
|
1436 |
|
|
1437 if (nargin < 2) |
|
|
1438 { |
|
|
1439 Octave_map err; |
|
|
1440 |
|
|
1441 err.assign ("message", Vlast_error_message); |
|
|
1442 err.assign ("identifier", Vlast_error_id); |
|
|
1443 |
|
|
1444 if (! (Vlast_error_file.empty() && Vlast_error_name.empty() && |
|
|
1445 Vlast_error_line < 0 && Vlast_error_column < 0)) |
|
|
1446 { |
|
|
1447 Octave_map err_stack; |
|
|
1448 |
|
|
1449 err_stack.assign ("file", Vlast_error_file); |
|
|
1450 err_stack.assign ("name", Vlast_error_name); |
|
|
1451 err_stack.assign ("line", Vlast_error_line); |
|
|
1452 err_stack.assign ("column", Vlast_error_column); |
|
|
1453 |
|
|
1454 err.assign ("stack", octave_value (err_stack)); |
|
|
1455 } |
|
|
1456 else |
|
|
1457 { |
|
|
1458 string_vector sv(4); |
|
|
1459 sv[0] = "file"; |
|
|
1460 sv[1] = "name"; |
|
|
1461 sv[2] = "line"; |
|
|
1462 sv[3] = "column"; |
|
|
1463 err.assign ("stack", octave_value (Octave_map (dim_vector (0,1), |
|
|
1464 sv))); |
|
|
1465 } |
|
|
1466 |
|
|
1467 if (nargin == 1) |
|
|
1468 { |
|
|
1469 if (args(0).is_string()) |
|
|
1470 { |
|
6483
|
1471 if (args(0).string_value () == "reset") |
|
6361
|
1472 { |
|
|
1473 Vlast_error_message = std::string(); |
|
|
1474 Vlast_error_id = std::string(); |
|
|
1475 Vlast_error_file = std::string(); |
|
|
1476 Vlast_error_name = std::string(); |
|
|
1477 Vlast_error_line = -1; |
|
|
1478 Vlast_error_column = -1; |
|
|
1479 } |
|
|
1480 else |
|
|
1481 error("lasterror: unrecognized string argument"); |
|
|
1482 } |
|
|
1483 else if (args(0).is_map ()) |
|
|
1484 { |
|
6483
|
1485 Octave_map new_err = args(0).map_value (); |
|
6361
|
1486 std::string new_error_message; |
|
|
1487 std::string new_error_id; |
|
|
1488 std::string new_error_file; |
|
|
1489 std::string new_error_name; |
|
|
1490 int new_error_line = -1; |
|
|
1491 int new_error_column = -1; |
|
|
1492 |
|
6483
|
1493 if (! error_state && new_err.contains ("message")) |
|
6361
|
1494 { |
|
|
1495 const std::string tmp = |
|
6483
|
1496 new_err.contents("message")(0).string_value (); |
|
6361
|
1497 new_error_message = tmp; |
|
|
1498 } |
|
|
1499 |
|
6483
|
1500 if (! error_state && new_err.contains ("identifier")) |
|
6361
|
1501 { |
|
|
1502 const std::string tmp = |
|
6483
|
1503 new_err.contents("identifier")(0).string_value (); |
|
6361
|
1504 new_error_id = tmp; |
|
|
1505 } |
|
|
1506 |
|
6483
|
1507 if (! error_state && new_err.contains ("stack")) |
|
6361
|
1508 { |
|
|
1509 Octave_map new_err_stack = |
|
6483
|
1510 new_err.contents("identifier")(0).map_value (); |
|
6361
|
1511 |
|
6483
|
1512 if (! error_state && new_err_stack.contains ("file")) |
|
6361
|
1513 { |
|
|
1514 const std::string tmp = |
|
6483
|
1515 new_err_stack.contents("file")(0).string_value (); |
|
6361
|
1516 new_error_file = tmp; |
|
|
1517 } |
|
|
1518 |
|
6483
|
1519 if (! error_state && new_err_stack.contains ("name")) |
|
6361
|
1520 { |
|
|
1521 const std::string tmp = |
|
6483
|
1522 new_err_stack.contents("name")(0).string_value (); |
|
6361
|
1523 new_error_name = tmp; |
|
|
1524 } |
|
|
1525 |
|
6483
|
1526 if (! error_state && new_err_stack.contains ("line")) |
|
6361
|
1527 { |
|
|
1528 const int tmp = |
|
6483
|
1529 new_err_stack.contents("line")(0).nint_value (); |
|
6361
|
1530 new_error_line = tmp; |
|
|
1531 } |
|
|
1532 |
|
6483
|
1533 if (! error_state && new_err_stack.contains ("column")) |
|
6361
|
1534 { |
|
|
1535 const int tmp = |
|
6483
|
1536 new_err_stack.contents("column")(0).nint_value (); |
|
6361
|
1537 new_error_column = tmp; |
|
|
1538 } |
|
|
1539 } |
|
|
1540 |
|
|
1541 if (! error_state) |
|
|
1542 { |
|
|
1543 Vlast_error_message = new_error_message; |
|
|
1544 Vlast_error_id = new_error_id; |
|
|
1545 Vlast_error_file = new_error_file; |
|
|
1546 Vlast_error_name = new_error_name; |
|
|
1547 Vlast_error_line = new_error_line; |
|
|
1548 Vlast_error_column = new_error_column; |
|
|
1549 } |
|
|
1550 } |
|
|
1551 else |
|
|
1552 error ("lasterror: argument must be a structure or a string"); |
|
|
1553 } |
|
|
1554 |
|
6483
|
1555 if (! error_state) |
|
6361
|
1556 retval = err; |
|
|
1557 } |
|
|
1558 else |
|
|
1559 print_usage (); |
|
|
1560 |
|
|
1561 return retval; |
|
|
1562 } |
|
|
1563 |
|
5567
|
1564 DEFUN (lasterr, args, nargout, |
|
3935
|
1565 "-*- texinfo -*-\n\ |
|
5567
|
1566 @deftypefn {Built-in Function} {[@var{msg}, @var{msgid}] =} lasterr (@var{msg}, @var{msgid})\n\ |
|
3935
|
1567 Without any arguments, return the last error message. With one\n\ |
|
5567
|
1568 argument, set the last error message to @var{msg}. With two arguments,\n\ |
|
|
1569 also set the last message identifier.\n\ |
|
3935
|
1570 @end deftypefn") |
|
|
1571 { |
|
|
1572 octave_value_list retval; |
|
|
1573 |
|
|
1574 int argc = args.length () + 1; |
|
|
1575 |
|
5567
|
1576 if (argc < 4) |
|
5335
|
1577 { |
|
|
1578 string_vector argv = args.make_argv ("lasterr"); |
|
3935
|
1579 |
|
5335
|
1580 if (! error_state) |
|
|
1581 { |
|
5567
|
1582 std::string prev_error_id = Vlast_error_id; |
|
|
1583 std::string prev_error_message = Vlast_error_message; |
|
|
1584 |
|
|
1585 if (argc > 2) |
|
|
1586 Vlast_error_id = argv(2); |
|
|
1587 |
|
|
1588 if (argc > 1) |
|
5335
|
1589 Vlast_error_message = argv(1); |
|
5567
|
1590 |
|
|
1591 if (argc == 1 || nargout > 0) |
|
|
1592 { |
|
|
1593 retval(1) = prev_error_id; |
|
|
1594 retval(0) = prev_error_message; |
|
|
1595 } |
|
5335
|
1596 } |
|
5567
|
1597 else |
|
5582
|
1598 error ("lasterr: expecting arguments to be character strings"); |
|
5335
|
1599 } |
|
3935
|
1600 else |
|
5823
|
1601 print_usage (); |
|
3935
|
1602 |
|
|
1603 return retval; |
|
|
1604 } |
|
|
1605 |
|
4699
|
1606 // For backward compatibility. |
|
|
1607 DEFALIAS (error_text, lasterr); |
|
|
1608 DEFALIAS (__error_text__, lasterr); |
|
|
1609 |
|
5567
|
1610 DEFUN (lastwarn, args, nargout, |
|
3934
|
1611 "-*- texinfo -*-\n\ |
|
5567
|
1612 @deftypefn {Built-in Function} {[@var{msg}, @var{msgid}] =} lastwarn (@var{msg}, @var{msgid})\n\ |
|
3935
|
1613 Without any arguments, return the last warning message. With one\n\ |
|
5567
|
1614 argument, set the last warning message to @var{msg}. With two arguments,\n\ |
|
|
1615 also set the last message identifier.\n\ |
|
3934
|
1616 @end deftypefn") |
|
|
1617 { |
|
|
1618 octave_value_list retval; |
|
|
1619 |
|
|
1620 int argc = args.length () + 1; |
|
|
1621 |
|
5567
|
1622 if (argc < 4) |
|
|
1623 { |
|
|
1624 string_vector argv = args.make_argv ("lastwarn"); |
|
|
1625 |
|
|
1626 if (! error_state) |
|
|
1627 { |
|
|
1628 std::string prev_warning_id = Vlast_warning_id; |
|
|
1629 std::string prev_warning_message = Vlast_warning_message; |
|
|
1630 |
|
|
1631 if (argc > 2) |
|
|
1632 Vlast_warning_id = argv(2); |
|
3934
|
1633 |
|
5567
|
1634 if (argc > 1) |
|
|
1635 Vlast_warning_message = argv(1); |
|
|
1636 |
|
|
1637 if (argc == 1 || nargout > 0) |
|
|
1638 { |
|
5582
|
1639 warning_state = 0; |
|
5567
|
1640 retval(1) = prev_warning_id; |
|
|
1641 retval(0) = prev_warning_message; |
|
|
1642 } |
|
|
1643 } |
|
|
1644 else |
|
|
1645 error ("lastwarn: expecting arguments to be character strings"); |
|
|
1646 } |
|
3934
|
1647 else |
|
5823
|
1648 print_usage (); |
|
3934
|
1649 |
|
|
1650 return retval; |
|
897
|
1651 } |
|
|
1652 |
|
1957
|
1653 DEFUN (usage, args, , |
|
3373
|
1654 "-*- texinfo -*-\n\ |
|
|
1655 @deftypefn {Built-in Function} {} usage (@var{msg})\n\ |
|
|
1656 Print the message @var{msg}, prefixed by the string @samp{usage: }, and\n\ |
|
|
1657 set Octave's internal error state such that control will return to the\n\ |
|
|
1658 top level without evaluating any more commands. This is useful for\n\ |
|
|
1659 aborting from functions.\n\ |
|
|
1660 \n\ |
|
|
1661 After @code{usage} is evaluated, Octave will print a traceback of all\n\ |
|
|
1662 the function calls leading to the usage message.\n\ |
|
899
|
1663 \n\ |
|
3373
|
1664 You should use this function for reporting problems errors that result\n\ |
|
|
1665 from an improper call to a function, such as calling a function with an\n\ |
|
|
1666 incorrect number of arguments, or with arguments of the wrong type. For\n\ |
|
|
1667 example, most functions distributed with Octave begin with code like\n\ |
|
|
1668 this\n\ |
|
|
1669 \n\ |
|
|
1670 @example\n\ |
|
|
1671 @group\n\ |
|
|
1672 if (nargin != 2)\n\ |
|
|
1673 usage (\"foo (a, b)\");\n\ |
|
|
1674 endif\n\ |
|
|
1675 @end group\n\ |
|
|
1676 @end example\n\ |
|
|
1677 \n\ |
|
|
1678 @noindent\n\ |
|
|
1679 to check for the proper number of arguments.\n\ |
|
|
1680 @end deftypefn") |
|
899
|
1681 { |
|
3934
|
1682 octave_value_list retval; |
|
5567
|
1683 handle_message (usage_with_id, "", "unknown", args); |
|
3934
|
1684 return retval; |
|
899
|
1685 } |
|
|
1686 |
|
5794
|
1687 DEFUN (beep_on_error, args, nargout, |
|
|
1688 "-*- texinfo -*-\n\ |
|
|
1689 @deftypefn {Built-in Function} {@var{val} =} beep_on_error ()\n\ |
|
|
1690 @deftypefnx {Built-in Function} {@var{old_val} =} beep_on_error (@var{new_val})\n\ |
|
|
1691 Query or set the internal variable that controls whether Octave will try\n\ |
|
|
1692 to ring the terminal bell before printing an error message.\n\ |
|
|
1693 @end deftypefn") |
|
3707
|
1694 { |
|
5794
|
1695 return SET_INTERNAL_VARIABLE (beep_on_error); |
|
3707
|
1696 } |
|
|
1697 |
|
5794
|
1698 DEFUN (debug_on_error, args, nargout, |
|
3373
|
1699 "-*- texinfo -*-\n\ |
|
5794
|
1700 @deftypefn {Built-in Function} {@var{val} =} debug_on_error ()\n\ |
|
|
1701 @deftypefnx {Built-in Function} {@var{old_val} =} debug_on_error (@var{new_val})\n\ |
|
|
1702 Query or set the internal variable that controls whether Octave will try\n\ |
|
3707
|
1703 to enter the debugger when an error is encountered. This will also\n\ |
|
|
1704 inhibit printing of the normal traceback message (you will only see\n\ |
|
5794
|
1705 the top-level error message).\n\ |
|
|
1706 @end deftypefn") |
|
|
1707 { |
|
|
1708 return SET_INTERNAL_VARIABLE (debug_on_error); |
|
|
1709 } |
|
3707
|
1710 |
|
5794
|
1711 DEFUN (debug_on_warning, args, nargout, |
|
3707
|
1712 "-*- texinfo -*-\n\ |
|
5794
|
1713 @deftypefn {Built-in Function} {@var{val} =} debug_on_warning ()\n\ |
|
|
1714 @deftypefnx {Built-in Function} {@var{old_val} =} debug_on_warning (@var{new_val})\n\ |
|
|
1715 Query or set the internal variable that controls whether Octave will try\n\ |
|
|
1716 to enter the debugger when a warning is encountered.\n\ |
|
|
1717 @end deftypefn") |
|
|
1718 { |
|
|
1719 return SET_INTERNAL_VARIABLE (debug_on_warning); |
|
2174
|
1720 } |
|
|
1721 |
|
1
|
1722 /* |
|
|
1723 ;;; Local Variables: *** |
|
|
1724 ;;; mode: C++ *** |
|
|
1725 ;;; End: *** |
|
|
1726 */ |
