Mercurial > octave
annotate libinterp/corefcn/error.cc @ 19415:972abb60c30f
emit stack trace immediately at point of error
* error.cc (pr_where): Get stack trace info in list of frames
instead of octave_map.
(error_2): Always display stack trace here, not just when entering
debug mode.
* toplev.h, toplev.cc (octave_call_stack::stack_frame): Rename from
octave_call_stack::call_stack_elt. Change all uses.
Declare as class instead of struct. Make data privave.
(stack_frame::line, stack_frame::column, stack_frame::fcn_file_name,
stack_frame::fcn_name): New methods.
(octave_call_stack::backtrace): Allow calling with zero or one arg.
(octave_call_stack::backtrace_frames,
octave_call_stack::do_backtrace_frames): New methods.x
(octave_call_stack::backtrace_error_message,
octave_call_stack::do_backtrace_error_message): Delete.
* ov-oncleanup.cc (octave_oncleanup::~octave_oncleanup):
Don't print stack trace here.
* ov-usr-fcn.cc (octave_user_script::do_multi_index_op,
octave_user_fcn::do_multi_index_op): Don't print stack trace here.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Sun, 21 Dec 2014 17:49:28 -0500 |
parents | 03067dab10ca |
children | 8b785ca93de7 |
rev | line source |
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1 | 1 /* |
2 | |
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3 Copyright (C) 1993-2013 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
1 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
1 | 20 |
21 */ | |
22 | |
240 | 23 #ifdef HAVE_CONFIG_H |
1192 | 24 #include <config.h> |
1 | 25 #endif |
26 | |
1343 | 27 #include <cstdarg> |
1633 | 28 #include <cstring> |
1343 | 29 |
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30 #include <iostream> |
5765 | 31 #include <sstream> |
1728 | 32 #include <string> |
33 | |
1352 | 34 #include "defun.h" |
1 | 35 #include "error.h" |
3707 | 36 #include "input.h" |
1742 | 37 #include "pager.h" |
1352 | 38 #include "oct-obj.h" |
5567 | 39 #include "oct-map.h" |
1352 | 40 #include "utils.h" |
2370 | 41 #include "ov.h" |
3707 | 42 #include "ov-usr-fcn.h" |
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43 #include "pt-eval.h" |
3707 | 44 #include "pt-pr-code.h" |
45 #include "pt-stmt.h" | |
46 #include "toplev.h" | |
47 #include "unwind-prot.h" | |
2370 | 48 #include "variables.h" |
1 | 49 |
2174 | 50 // TRUE means that Octave will try to beep obnoxiously before printing |
51 // error messages. | |
5794 | 52 static bool Vbeep_on_error = false; |
2174 | 53 |
3707 | 54 // TRUE means that Octave will try to enter the debugger when an error |
55 // is encountered. This will also inhibit printing of the normal | |
56 // traceback message (you will only see the top-level error message). | |
7353 | 57 bool Vdebug_on_error = false; |
3707 | 58 |
59 // TRUE means that Octave will try to enter the debugger when a warning | |
60 // is encountered. | |
7353 | 61 bool Vdebug_on_warning = false; |
3707 | 62 |
5567 | 63 // TRUE means that Octave will try to display a stack trace when a |
64 // warning is encountered. | |
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65 static bool Vbacktrace_on_warning = true; |
5567 | 66 |
67 // TRUE means that Octave will print a verbose warning. Currently unused. | |
68 static bool Vverbose_warning; | |
69 | |
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70 // TRUE means that Octave will print no warnings, but lastwarn will be updated |
5582 | 71 static bool Vquiet_warning = false; |
72 | |
5567 | 73 // A structure containing (most of) the current state of warnings. |
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74 static octave_map warning_options; |
5567 | 75 |
3935 | 76 // The text of the last error message. |
77 static std::string Vlast_error_message; | |
78 | |
3934 | 79 // The text of the last warning message. |
80 static std::string Vlast_warning_message; | |
81 | |
5567 | 82 // The last warning message id. |
83 static std::string Vlast_warning_id; | |
3934 | 84 |
5567 | 85 // The last error message id. |
86 static std::string Vlast_error_id; | |
3934 | 87 |
6361 | 88 // The last file in which an error occured |
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89 static octave_map Vlast_error_stack; |
6361 | 90 |
143 | 91 // Current error state. |
3935 | 92 // |
93 // Valid values: | |
94 // | |
95 // -2: an error has occurred, but don't print any messages. | |
96 // -1: an error has occurred, we are printing a traceback | |
97 // 0: no error | |
98 // 1: an error has occurred | |
99 // | |
672 | 100 int error_state = 0; |
101 | |
3489 | 102 // Current warning state. |
3935 | 103 // |
104 // Valid values: | |
105 // | |
106 // 0: no warning | |
107 // 1: a warning has occurred | |
108 // | |
3489 | 109 int warning_state = 0; |
110 | |
1489 | 111 // Tell the error handler whether to print messages, or just store |
112 // them for later. Used for handling errors in eval() and | |
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113 // the 'unwind_protect' statement. |
4699 | 114 int buffer_error_messages = 0; |
1489 | 115 |
3815 | 116 // TRUE means error messages are turned off. |
117 bool discard_error_messages = false; | |
118 | |
4452 | 119 // TRUE means warning messages are turned off. |
120 bool discard_warning_messages = false; | |
121 | |
4318 | 122 void |
123 reset_error_handler (void) | |
124 { | |
125 error_state = 0; | |
126 warning_state = 0; | |
4699 | 127 buffer_error_messages = 0; |
4318 | 128 discard_error_messages = false; |
129 } | |
130 | |
5567 | 131 static void |
5794 | 132 initialize_warning_options (const std::string& state) |
5567 | 133 { |
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134 octave_scalar_map initw; |
5567 | 135 |
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136 initw.setfield ("identifier", "all"); |
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137 initw.setfield ("state", state); |
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138 |
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139 warning_options = initw; |
5567 | 140 } |
141 | |
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142 static octave_map |
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143 initialize_last_error_stack (void) |
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144 { |
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145 return octave_call_stack::empty_backtrace (); |
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146 } |
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147 |
3491 | 148 // Warning messages are never buffered. |
149 | |
150 static void | |
5567 | 151 vwarning (const char *name, const char *id, const char *fmt, va_list args) |
3491 | 152 { |
4452 | 153 if (discard_warning_messages) |
154 return; | |
155 | |
3491 | 156 flush_octave_stdout (); |
157 | |
5765 | 158 std::ostringstream output_buf; |
3491 | 159 |
160 if (name) | |
3761 | 161 output_buf << name << ": "; |
162 | |
163 octave_vformat (output_buf, fmt, args); | |
164 | |
5765 | 165 output_buf << std::endl; |
3491 | 166 |
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167 // FIXME: we really want to capture the message before it has all the |
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168 // formatting goop attached to it. We probably also want just the |
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169 // message, not the traceback information. |
3935 | 170 |
5765 | 171 std::string msg_string = output_buf.str (); |
3934 | 172 |
3935 | 173 if (! warning_state) |
174 { | |
175 // This is the first warning in a possible series. | |
5567 | 176 |
177 Vlast_warning_id = id; | |
3935 | 178 Vlast_warning_message = msg_string; |
179 } | |
3934 | 180 |
5582 | 181 if (! Vquiet_warning) |
182 { | |
183 octave_diary << msg_string; | |
3935 | 184 |
5582 | 185 std::cerr << msg_string; |
186 } | |
3491 | 187 } |
188 | |
1 | 189 static void |
4732 | 190 verror (bool save_last_error, std::ostream& os, |
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191 const char *name, const char *id, const char *fmt, va_list args, |
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192 bool with_cfn = false) |
1 | 193 { |
3815 | 194 if (discard_error_messages) |
195 return; | |
196 | |
3585 | 197 if (! buffer_error_messages) |
198 flush_octave_stdout (); | |
914 | 199 |
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200 // FIXME: we really want to capture the message before it has all the |
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201 // formatting goop attached to it. We probably also want just the |
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202 // message, not the traceback information. |
3935 | 203 |
7877 | 204 std::ostringstream output_buf; |
205 | |
206 octave_vformat (output_buf, fmt, args); | |
207 | |
208 std::string base_msg = output_buf.str (); | |
209 | |
210 bool to_beep_or_not_to_beep_p = Vbeep_on_error && ! error_state; | |
211 | |
212 std::string msg_string; | |
213 | |
214 if (to_beep_or_not_to_beep_p) | |
215 msg_string = "\a"; | |
216 | |
217 if (name) | |
218 msg_string += std::string (name) + ": "; | |
219 | |
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220 // If with_fcn is specified, we'll attempt to prefix the message with the name |
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221 // of the current executing function. But we'll do so only if: |
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222 // 1. the name is not empty (anonymous function) |
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223 // 2. it is not already there (including the following colon) |
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224 if (with_cfn) |
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225 { |
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226 octave_function *curfcn = octave_call_stack::current (); |
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227 if (curfcn) |
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228 { |
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229 std::string cfn = curfcn->name (); |
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230 if (! cfn.empty ()) |
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231 { |
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232 cfn += ':'; |
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233 if (cfn.length () > base_msg.length () |
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234 || base_msg.compare (0, cfn.length (), cfn) != 0) |
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235 { |
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236 msg_string += cfn + ' '; |
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237 } |
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238 } |
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239 } |
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240 } |
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241 |
7880 | 242 msg_string += base_msg + "\n"; |
3935 | 243 |
4731 | 244 if (! error_state && save_last_error) |
3935 | 245 { |
246 // This is the first error in a possible series. | |
5567 | 247 |
248 Vlast_error_id = id; | |
7877 | 249 Vlast_error_message = base_msg; |
6361 | 250 |
7877 | 251 octave_user_code *fcn = octave_call_stack::caller_user_code (); |
6361 | 252 |
7877 | 253 if (fcn) |
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254 { |
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255 octave_idx_type curr_frame = -1; |
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256 |
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257 Vlast_error_stack = octave_call_stack::backtrace (0, curr_frame); |
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258 } |
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259 else |
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260 Vlast_error_stack = initialize_last_error_stack (); |
3935 | 261 } |
262 | |
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263 if (! buffer_error_messages) |
1489 | 264 { |
3935 | 265 octave_diary << msg_string; |
4732 | 266 os << msg_string; |
1489 | 267 } |
1 | 268 } |
269 | |
1266 | 270 // Note that we don't actually print any message if the error string |
271 // is just "" or "\n". This allows error ("") and error ("\n") to | |
272 // just set the error state. | |
273 | |
1005 | 274 static void |
5567 | 275 error_1 (std::ostream& os, const char *name, const char *id, |
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276 const char *fmt, va_list args, bool with_cfn = false) |
1005 | 277 { |
278 if (error_state != -2) | |
279 { | |
1489 | 280 if (fmt) |
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281 { |
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282 if (*fmt) |
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283 { |
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284 size_t len = strlen (fmt); |
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285 |
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286 if (len > 0) |
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287 { |
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288 if (fmt[len - 1] == '\n') |
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289 { |
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290 if (len > 1) |
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291 { |
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292 char *tmp_fmt = strsave (fmt); |
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293 tmp_fmt[len - 1] = '\0'; |
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294 verror (true, os, name, id, tmp_fmt, args, with_cfn); |
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295 delete [] tmp_fmt; |
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296 } |
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297 |
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298 error_state = -2; |
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299 } |
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300 else |
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301 { |
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302 verror (true, os, name, id, fmt, args, with_cfn); |
1423 | 303 |
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304 if (! error_state) |
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305 error_state = 1; |
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306 } |
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307 } |
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308 } |
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309 } |
1489 | 310 else |
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311 panic ("error_1: invalid format"); |
1005 | 312 } |
313 } | |
314 | |
1 | 315 void |
6338 | 316 vmessage (const char *name, const char *fmt, va_list args) |
317 { | |
318 verror (false, std::cerr, name, "", fmt, args); | |
319 } | |
320 | |
321 void | |
1 | 322 message (const char *name, const char *fmt, ...) |
323 { | |
324 va_list args; | |
325 va_start (args, fmt); | |
6338 | 326 vmessage (name, fmt, args); |
1 | 327 va_end (args); |
328 } | |
329 | |
330 void | |
6338 | 331 vmessage_with_id (const char *name, const char *id, const char *fmt, |
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332 va_list args) |
6338 | 333 { |
334 verror (false, std::cerr, name, id, fmt, args); | |
335 } | |
336 | |
337 void | |
5567 | 338 message_with_id (const char *name, const char *id, const char *fmt, ...) |
339 { | |
340 va_list args; | |
341 va_start (args, fmt); | |
6338 | 342 vmessage_with_id (name, id, fmt, args); |
5567 | 343 va_end (args); |
344 } | |
345 | |
346 void | |
347 usage_1 (const char *id, const char *fmt, va_list args) | |
348 { | |
349 verror (true, std::cerr, "usage", id, fmt, args); | |
350 error_state = -1; | |
351 } | |
352 | |
353 void | |
6338 | 354 vusage (const char *fmt, va_list args) |
355 { | |
356 usage_1 ("", fmt, args); | |
357 } | |
358 | |
359 void | |
1 | 360 usage (const char *fmt, ...) |
361 { | |
362 va_list args; | |
363 va_start (args, fmt); | |
6338 | 364 vusage (fmt, args); |
5567 | 365 va_end (args); |
366 } | |
367 | |
368 void | |
6338 | 369 vusage_with_id (const char *id, const char *fmt, va_list args) |
370 { | |
371 usage_1 (id, fmt, args); | |
372 } | |
373 | |
374 void | |
5567 | 375 usage_with_id (const char *id, const char *fmt, ...) |
376 { | |
377 va_list args; | |
378 va_start (args, fmt); | |
6338 | 379 vusage_with_id (id, fmt, args); |
1 | 380 va_end (args); |
381 } | |
382 | |
3707 | 383 static void |
3719 | 384 pr_where_2 (const char *fmt, va_list args) |
385 { | |
386 if (fmt) | |
387 { | |
388 if (*fmt) | |
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389 { |
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390 size_t len = strlen (fmt); |
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391 |
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392 if (len > 0) |
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393 { |
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394 if (fmt[len - 1] == '\n') |
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395 { |
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396 if (len > 1) |
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397 { |
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398 char *tmp_fmt = strsave (fmt); |
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399 tmp_fmt[len - 1] = '\0'; |
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400 verror (false, std::cerr, 0, "", tmp_fmt, args); |
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401 delete [] tmp_fmt; |
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402 } |
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403 } |
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404 else |
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405 verror (false, std::cerr, 0, "", fmt, args); |
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406 } |
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407 } |
3719 | 408 } |
409 else | |
410 panic ("pr_where_2: invalid format"); | |
411 } | |
412 | |
413 static void | |
3707 | 414 pr_where_1 (const char *fmt, ...) |
415 { | |
416 va_list args; | |
417 va_start (args, fmt); | |
3719 | 418 pr_where_2 (fmt, args); |
3707 | 419 va_end (args); |
420 } | |
421 | |
422 static void | |
8973 | 423 pr_where (const char *who) |
3707 | 424 { |
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425 std::list<octave_call_stack::stack_frame> frames |
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426 = octave_call_stack::backtrace_frames (); |
4976 | 427 |
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428 size_t nframes = frames.size (); |
3708 | 429 |
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430 if (nframes > 0) |
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431 pr_where_1 ("%s: called from\n", who); |
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432 |
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433 for (std::list<octave_call_stack::stack_frame>::const_iterator p = frames.begin (); |
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434 p != frames.end (); p++) |
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435 { |
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436 const octave_call_stack::stack_frame& elt = *p; |
3707 | 437 |
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438 std::string fcn_name = elt.fcn_name (); |
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439 int line = elt.line (); |
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440 int column = elt.column (); |
3707 | 441 |
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442 pr_where_1 (" %s at line %d column %d\n", |
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443 fcn_name.c_str (), line, column); |
3707 | 444 } |
445 } | |
446 | |
6000 | 447 static void |
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448 error_2 (const char *id, const char *fmt, va_list args, bool with_cfn = false) |
6000 | 449 { |
450 int init_state = error_state; | |
451 | |
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452 error_1 (std::cerr, "error", id, fmt, args, with_cfn); |
6000 | 453 |
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454 if (! symbol_table::at_top_level () && ! discard_error_messages) |
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455 pr_where ("error"); |
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456 |
6000 | 457 if ((interactive || forced_interactive) |
458 && Vdebug_on_error && init_state == 0 | |
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459 && octave_call_stack::caller_user_code ()) |
6000 | 460 { |
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461 unwind_protect frame; |
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462 frame.protect_var (Vdebug_on_error); |
6000 | 463 Vdebug_on_error = false; |
464 | |
8973 | 465 error_state = 0; |
6000 | 466 |
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467 tree_evaluator::debug_mode = true; |
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468 |
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469 tree_evaluator::current_frame = octave_call_stack::current_frame (); |
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470 |
6000 | 471 do_keyboard (octave_value_list ()); |
472 } | |
473 } | |
474 | |
475 void | |
6338 | 476 verror (const char *fmt, va_list args) |
477 { | |
478 error_2 ("", fmt, args); | |
479 } | |
480 | |
481 void | |
6000 | 482 error (const char *fmt, ...) |
483 { | |
484 va_list args; | |
485 va_start (args, fmt); | |
6338 | 486 verror (fmt, args); |
6000 | 487 va_end (args); |
488 } | |
489 | |
490 void | |
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491 verror_with_cfn (const char *fmt, va_list args) |
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492 { |
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493 error_2 ("", fmt, args, true); |
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494 } |
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495 |
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496 void |
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497 error_with_cfn (const char *fmt, ...) |
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498 { |
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499 va_list args; |
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500 va_start (args, fmt); |
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501 verror_with_cfn (fmt, args); |
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502 va_end (args); |
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503 } |
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504 |
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505 void |
6338 | 506 verror_with_id (const char *id, const char *fmt, va_list args) |
507 { | |
508 error_2 (id, fmt, args); | |
509 } | |
510 | |
511 void | |
6000 | 512 error_with_id (const char *id, const char *fmt, ...) |
513 { | |
514 va_list args; | |
515 va_start (args, fmt); | |
6338 | 516 verror_with_id (id, fmt, args); |
6000 | 517 va_end (args); |
518 } | |
519 | |
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520 void |
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521 verror_with_id_cfn (const char *id, const char *fmt, va_list args) |
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522 { |
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523 error_2 (id, fmt, args, true); |
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524 } |
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525 |
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526 void |
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527 error_with_id_cfn (const char *id, const char *fmt, ...) |
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528 { |
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529 va_list args; |
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530 va_start (args, fmt); |
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531 verror_with_id_cfn (id, fmt, args); |
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532 va_end (args); |
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533 } |
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534 |
5567 | 535 static int |
536 check_state (const std::string& state) | |
537 { | |
538 // -1: not found | |
539 // 0: found, "off" | |
540 // 1: found, "on" | |
541 // 2: found, "error" | |
542 | |
543 if (state == "off") | |
544 return 0; | |
545 else if (state == "on") | |
546 return 1; | |
547 else if (state == "error") | |
548 return 2; | |
549 else | |
550 return -1; | |
551 } | |
552 | |
553 // For given warning ID, return 0 if warnings are disabled, 1 if | |
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554 // enabled, and 2 if the given ID should be an error instead of a |
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555 // warning. |
5567 | 556 |
5781 | 557 int |
5567 | 558 warning_enabled (const std::string& id) |
1 | 559 { |
5567 | 560 int retval = 0; |
561 | |
562 int all_state = -1; | |
563 int id_state = -1; | |
564 | |
565 octave_idx_type nel = warning_options.numel (); | |
566 | |
567 if (nel > 0) | |
568 { | |
569 Cell identifier = warning_options.contents ("identifier"); | |
570 Cell state = warning_options.contents ("state"); | |
571 | |
572 bool all_found = false; | |
573 bool id_found = false; | |
574 | |
575 for (octave_idx_type i = 0; i < nel; i++) | |
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576 { |
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577 octave_value ov = identifier(i); |
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578 std::string ovs = ov.string_value (); |
5567 | 579 |
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580 if (! all_found && ovs == "all") |
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581 { |
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582 all_state = check_state (state(i).string_value ()); |
5567 | 583 |
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584 if (all_state >= 0) |
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585 all_found = true; |
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586 } |
5567 | 587 |
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588 if (! id_found && ovs == id) |
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589 { |
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590 id_state = check_state (state(i).string_value ()); |
5567 | 591 |
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592 if (id_state >= 0) |
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593 id_found = true; |
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594 } |
5567 | 595 |
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596 if (all_found && id_found) |
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597 break; |
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598 } |
5567 | 599 } |
600 | |
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601 // If "all" is not present, assume warnings are enabled. |
5567 | 602 if (all_state == -1) |
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603 all_state = 1; |
5567 | 604 |
605 if (all_state == 0) | |
606 { | |
607 if (id_state >= 0) | |
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608 retval = id_state; |
5567 | 609 } |
610 else if (all_state == 1) | |
611 { | |
612 if (id_state == 0 || id_state == 2) | |
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613 retval = id_state; |
5567 | 614 else |
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615 retval = all_state; |
5567 | 616 } |
617 else if (all_state == 2) | |
7206 | 618 { |
619 if (id_state == 0) | |
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620 retval= id_state; |
7206 | 621 else |
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622 retval = all_state; |
7206 | 623 } |
5567 | 624 |
625 return retval; | |
626 } | |
627 | |
628 static void | |
629 warning_1 (const char *id, const char *fmt, va_list args) | |
630 { | |
631 int warn_opt = warning_enabled (id); | |
632 | |
633 if (warn_opt == 2) | |
634 { | |
635 // Handle this warning as an error. | |
636 | |
5998 | 637 error_2 (id, fmt, args); |
5567 | 638 } |
639 else if (warn_opt == 1) | |
3934 | 640 { |
8973 | 641 vwarning ("warning", id, fmt, args); |
642 | |
643 if (! symbol_table::at_top_level () | |
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644 && Vbacktrace_on_warning |
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645 && ! warning_state |
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646 && ! discard_warning_messages) |
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647 pr_where ("warning"); |
3707 | 648 |
3935 | 649 warning_state = 1; |
650 | |
3934 | 651 if ((interactive || forced_interactive) |
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652 && Vdebug_on_warning |
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653 && octave_call_stack::caller_user_code ()) |
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654 { |
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655 unwind_protect frame; |
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656 frame.protect_var (Vdebug_on_warning); |
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657 Vdebug_on_warning = false; |
3707 | 658 |
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659 tree_evaluator::debug_mode = true; |
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660 |
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661 tree_evaluator::current_frame = octave_call_stack::current_frame (); |
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662 |
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663 do_keyboard (octave_value_list ()); |
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664 } |
3707 | 665 } |
1 | 666 } |
667 | |
668 void | |
6338 | 669 vwarning (const char *fmt, va_list args) |
670 { | |
671 warning_1 ("", fmt, args); | |
672 } | |
673 | |
674 void | |
5567 | 675 warning (const char *fmt, ...) |
676 { | |
677 va_list args; | |
678 va_start (args, fmt); | |
6338 | 679 vwarning (fmt, args); |
5567 | 680 va_end (args); |
681 } | |
682 | |
683 void | |
6338 | 684 vwarning_with_id (const char *id, const char *fmt, va_list args) |
685 { | |
686 warning_1 (id, fmt, args); | |
687 } | |
688 | |
689 void | |
5567 | 690 warning_with_id (const char *id, const char *fmt, ...) |
691 { | |
692 va_list args; | |
693 va_start (args, fmt); | |
6338 | 694 vwarning_with_id (id, fmt, args); |
5567 | 695 va_end (args); |
696 } | |
697 | |
698 void | |
6338 | 699 vparse_error (const char *fmt, va_list args) |
700 { | |
701 error_1 (std::cerr, 0, "", fmt, args); | |
702 } | |
703 | |
704 void | |
1005 | 705 parse_error (const char *fmt, ...) |
706 { | |
707 va_list args; | |
708 va_start (args, fmt); | |
6338 | 709 vparse_error (fmt, args); |
5567 | 710 va_end (args); |
711 } | |
712 | |
713 void | |
6338 | 714 vparse_error_with_id (const char *id, const char *fmt, va_list args) |
715 { | |
716 error_1 (std::cerr, 0, id, fmt, args); | |
717 } | |
718 | |
719 void | |
5567 | 720 parse_error_with_id (const char *id, const char *fmt, ...) |
721 { | |
722 va_list args; | |
723 va_start (args, fmt); | |
6338 | 724 vparse_error_with_id (id, fmt, args); |
1 | 725 va_end (args); |
726 } | |
727 | |
189 | 728 void |
6361 | 729 rethrow_error (const char *id, const char *fmt, ...) |
730 { | |
731 va_list args; | |
732 va_start (args, fmt); | |
6640 | 733 error_1 (std::cerr, 0, id, fmt, args); |
6361 | 734 va_end (args); |
735 } | |
736 | |
737 void | |
1 | 738 panic (const char *fmt, ...) |
739 { | |
740 va_list args; | |
741 va_start (args, fmt); | |
4699 | 742 buffer_error_messages = 0; |
3815 | 743 discard_error_messages = false; |
5567 | 744 verror (false, std::cerr, "panic", "", fmt, args); |
1 | 745 va_end (args); |
746 abort (); | |
747 } | |
748 | |
4732 | 749 static void |
750 defun_usage_message_1 (const char *fmt, ...) | |
751 { | |
752 va_list args; | |
753 va_start (args, fmt); | |
5567 | 754 error_1 (octave_stdout, 0, "", fmt, args); |
4732 | 755 va_end (args); |
756 } | |
757 | |
758 void | |
759 defun_usage_message (const std::string& msg) | |
760 { | |
761 defun_usage_message_1 ("%s", msg.c_str ()); | |
762 } | |
763 | |
5567 | 764 typedef void (*error_fun)(const char *, const char *, ...); |
1489 | 765 |
2086 | 766 extern octave_value_list Fsprintf (const octave_value_list&, int); |
1489 | 767 |
3934 | 768 static std::string |
5567 | 769 handle_message (error_fun f, const char *id, const char *msg, |
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770 const octave_value_list& args, bool have_fmt) |
528 | 771 { |
3934 | 772 std::string retval; |
528 | 773 |
3523 | 774 std::string tstr; |
1728 | 775 |
528 | 776 int nargin = args.length (); |
777 | |
2745 | 778 if (nargin > 0) |
528 | 779 { |
3066 | 780 octave_value arg; |
781 | |
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782 if (have_fmt) |
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783 { |
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784 octave_value_list tmp = Fsprintf (args, 1); |
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785 arg = tmp(0); |
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786 } |
3066 | 787 else |
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788 arg = args(0); |
2745 | 789 |
790 if (arg.is_defined ()) | |
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791 { |
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792 if (arg.is_string ()) |
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793 { |
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794 tstr = arg.string_value (); |
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795 msg = tstr.c_str (); |
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796 |
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797 if (! msg) |
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798 return retval; |
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799 } |
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800 else if (arg.is_empty ()) |
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801 return retval; |
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802 } |
528 | 803 } |
804 | |
1489 | 805 // Ugh. |
806 | |
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807 size_t len = strlen (msg); |
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808 |
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809 if (len > 0) |
1489 | 810 { |
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811 if (msg[len - 1] == '\n') |
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812 { |
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813 if (len > 1) |
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814 { |
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815 char *tmp_msg = strsave (msg); |
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816 tmp_msg[len - 1] = '\0'; |
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817 f (id, "%s\n", tmp_msg); |
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818 retval = tmp_msg; |
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819 delete [] tmp_msg; |
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820 } |
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821 } |
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822 else |
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823 { |
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824 f (id, "%s", msg); |
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825 retval = msg; |
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826 } |
3934 | 827 } |
528 | 828 |
829 return retval; | |
830 } | |
831 | |
6361 | 832 DEFUN (rethrow, args, , |
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833 "-*- texinfo -*-\n\ |
6361 | 834 @deftypefn {Built-in Function} {} rethrow (@var{err})\n\ |
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835 Reissue a previous error as defined by @var{err}. @var{err} is a structure\n\ |
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836 that must contain at least the @qcode{\"message\"} and @qcode{\"identifier\"}\n\ |
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837 fields. @var{err} can also contain a field @qcode{\"stack\"} that gives\n\ |
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838 information on the assumed location of the error. Typically @var{err} is\n\ |
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839 returned from @code{lasterror}.\n\ |
6361 | 840 @seealso{lasterror, lasterr, error}\n\ |
841 @end deftypefn") | |
842 { | |
843 octave_value retval; | |
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844 int nargin = args.length (); |
6361 | 845 |
846 if (nargin != 1) | |
6959 | 847 print_usage (); |
6361 | 848 else |
849 { | |
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850 const octave_scalar_map err = args(0).scalar_map_value (); |
6361 | 851 |
6483 | 852 if (! error_state) |
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853 { |
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854 if (err.contains ("message") && err.contains ("identifier")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
855 { |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
856 std::string msg = err.contents ("message").string_value (); |
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
857 std::string id = err.contents ("identifier").string_value (); |
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14559
diff
changeset
|
858 int len = msg.length (); |
9166
69088b7b139c
use complete stack trace information for lasterror
John W. Eaton <jwe@octave.org>
parents:
9153
diff
changeset
|
859 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
860 std::string file; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
861 std::string nm; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
862 int l = -1; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
863 int c = -1; |
6361 | 864 |
10767
2b041d3995a3
modernize some map usage on toplev.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
10605
diff
changeset
|
865 octave_map err_stack = initialize_last_error_stack (); |
9166
69088b7b139c
use complete stack trace information for lasterror
John W. Eaton <jwe@octave.org>
parents:
9153
diff
changeset
|
866 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
867 if (err.contains ("stack")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
868 { |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
869 err_stack = err.contents ("stack").map_value (); |
6483 | 870 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
871 if (err_stack.numel () > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
872 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
873 if (err_stack.contains ("file")) |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
874 file = err_stack.contents ("file")(0).string_value (); |
6483 | 875 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
876 if (err_stack.contains ("name")) |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
877 nm = err_stack.contents ("name")(0).string_value (); |
6483 | 878 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
879 if (err_stack.contains ("line")) |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
880 l = err_stack.contents ("line")(0).nint_value (); |
6640 | 881 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
882 if (err_stack.contains ("column")) |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
883 c = err_stack.contents ("column")(0).nint_value (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
884 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
885 } |
6361 | 886 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
887 // Ugh. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
888 char *tmp_msg = strsave (msg.c_str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
889 if (tmp_msg[len-1] == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
890 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
891 if (len > 1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
892 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
893 tmp_msg[len - 1] = '\0'; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
894 rethrow_error (id.c_str (), "%s\n", tmp_msg); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
895 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
896 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
897 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
898 rethrow_error (id.c_str (), "%s", tmp_msg); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
899 delete [] tmp_msg; |
6361 | 900 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
901 // FIXME: is this the right thing to do for Vlast_error_stack? |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
902 // Should it be saved and restored with unwind_protect? |
9166
69088b7b139c
use complete stack trace information for lasterror
John W. Eaton <jwe@octave.org>
parents:
9153
diff
changeset
|
903 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
904 Vlast_error_stack = err_stack; |
6361 | 905 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
906 if (err.contains ("stack")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
907 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
908 if (file.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
909 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
910 if (nm.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
911 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
912 if (l > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
913 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
914 if (c > 0) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11572
diff
changeset
|
915 pr_where_1 ("error: near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
916 l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
917 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
918 pr_where_1 ("error: near line %d", l); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
919 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
920 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
921 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
922 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
923 if (l > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
924 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
925 if (c > 0) |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
926 pr_where_1 ("error: called from '%s' near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
927 nm.c_str (), l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
928 else |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
929 pr_where_1 ("error: called from '%d' near line %d", |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
930 nm.c_str (), l); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
931 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
932 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
933 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
934 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
935 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
936 if (nm.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
937 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
938 if (l > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
939 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
940 if (c > 0) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11572
diff
changeset
|
941 pr_where_1 ("error: in file %s near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
942 file.c_str (), l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
943 else |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
944 pr_where_1 ("error: in file %s near line %d", |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
945 file.c_str (), l); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
946 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
947 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
948 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
949 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
950 if (l > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
951 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
952 if (c > 0) |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
953 pr_where_1 ("error: called from '%s' in file %s near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
954 nm.c_str (), file.c_str (), l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
955 else |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
956 pr_where_1 ("error: called from '%d' in file %s near line %d", |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
957 nm.c_str (), file.c_str (), l); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
958 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
959 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
960 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
961 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
962 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
963 else |
12483
7a5aacf65f81
Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
964 error ("rethrow: ERR structure must contain the fields 'message and 'identifier'"); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
965 } |
6361 | 966 } |
967 return retval; | |
968 } | |
969 | |
14558
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
970 // Determine whether the first argument to error or warning function |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
971 // should be handled as the message identifier or as the format string. |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
972 |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
973 static bool |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
974 maybe_extract_message_id (const std::string& caller, |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
975 const octave_value_list& args, |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
976 octave_value_list& nargs, |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
977 std::string& id) |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
978 { |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
979 nargs = args; |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
980 id = std::string (); |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
981 |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
982 int nargin = args.length (); |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
983 |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
984 bool have_fmt = nargin > 1; |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
985 |
0c9c85e702ca
better compatibility for error/warning message IDs and format specifiers
John W. Eaton <jwe@octave.org>
parents:
14361
diff
changeset
|
986 if (nargin > 0) |
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987 { |
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988 std::string arg1 = args(0).string_value (); |
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989 |
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990 if (! error_state) |
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991 { |
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992 // For compatibility with Matlab, an identifier must contain |
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993 // ':', but not at the beginning or the end, and it must not |
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994 // contain '%' (even if it is not a valid conversion |
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995 // operator) or whitespace. |
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996 |
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997 if (arg1.find_first_of ("% \f\n\r\t\v") == std::string::npos |
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998 && arg1.find (':') != std::string::npos |
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999 && arg1[0] != ':' |
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1000 && arg1[arg1.length ()-1] != ':') |
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1001 { |
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1002 if (nargin > 1) |
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1003 { |
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1004 id = arg1; |
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1005 |
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1006 nargs.resize (nargin-1); |
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1007 |
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1008 for (int i = 1; i < nargin; i++) |
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1009 nargs(i-1) = args(i); |
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1010 } |
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1011 else |
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1012 nargs(0) = "call to " + caller |
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1013 + " with message identifier requires message"; |
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1014 } |
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1015 } |
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1016 } |
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1017 |
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1018 return have_fmt; |
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1019 } |
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1020 |
1957 | 1021 DEFUN (error, args, , |
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1022 "-*- texinfo -*-\n\ |
10840 | 1023 @deftypefn {Built-in Function} {} error (@var{template}, @dots{})\n\ |
7252 | 1024 @deftypefnx {Built-in Function} {} error (@var{id}, @var{template}, @dots{})\n\ |
5781 | 1025 Format the optional arguments under the control of the template string\n\ |
1026 @var{template} using the same rules as the @code{printf} family of\n\ | |
1027 functions (@pxref{Formatted Output}) and print the resulting message\n\ | |
1028 on the @code{stderr} stream. The message is prefixed by the character\n\ | |
1029 string @samp{error: }.\n\ | |
3373 | 1030 \n\ |
1031 Calling @code{error} also sets Octave's internal error state such that\n\ | |
1032 control will return to the top level without evaluating any more\n\ | |
1033 commands. This is useful for aborting from functions or scripts.\n\ | |
897 | 1034 \n\ |
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1035 If the error message does not end with a newline character, Octave will\n\ |
3373 | 1036 print a traceback of all the function calls leading to the error. For\n\ |
1037 example, given the following function definitions:\n\ | |
1038 \n\ | |
1039 @example\n\ | |
1040 @group\n\ | |
6671 | 1041 function f () g (); end\n\ |
1042 function g () h (); end\n\ | |
3373 | 1043 function h () nargin == 1 || error (\"nargin != 1\"); end\n\ |
1044 @end group\n\ | |
1045 @end example\n\ | |
1489 | 1046 \n\ |
3373 | 1047 @noindent\n\ |
1048 calling the function @code{f} will result in a list of messages that\n\ | |
1049 can help you to quickly locate the exact location of the error:\n\ | |
1489 | 1050 \n\ |
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1051 @example\n\ |
3373 | 1052 @group\n\ |
1053 f ()\n\ | |
1054 error: nargin != 1\n\ | |
8015
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1055 error: called from:\n\ |
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1056 error: error at line -1, column -1\n\ |
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1057 error: h at line 1, column 27\n\ |
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1058 error: g at line 1, column 15\n\ |
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1059 error: f at line 1, column 15\n\ |
3373 | 1060 @end group\n\ |
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1061 @end example\n\ |
3373 | 1062 \n\ |
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1063 If the error message ends in a newline character, Octave will print the\n\ |
3373 | 1064 message but will not display any traceback messages as it returns\n\ |
1065 control to the top level. For example, modifying the error message\n\ | |
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1066 in the previous example to end in a newline causes Octave to only print\n\ |
3373 | 1067 a single message:\n\ |
1068 \n\ | |
1069 @example\n\ | |
1070 @group\n\ | |
1071 function h () nargin == 1 || error (\"nargin != 1\\n\"); end\n\ | |
1072 f ()\n\ | |
1073 error: nargin != 1\n\ | |
1074 @end group\n\ | |
1075 @end example\n\ | |
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1076 \n\ |
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1077 A null string (\"\") input to @code{error} will be ignored and the code\n\ |
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1078 will continue running as if the statement were a NOP@. This is for\n\ |
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1079 compatibility with @sc{matlab}. It also makes it possible to write code such\n\ |
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1080 as\n\ |
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1081 \n\ |
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1082 @example\n\ |
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1083 @group\n\ |
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1084 err_msg = \"\";\n\ |
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1085 if (CONDITION 1)\n\ |
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1086 err_msg = \"CONDITION 1 found\";\n\ |
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1087 elseif (CONDITION2)\n\ |
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1088 err_msg = \"CONDITION 2 found\";\n\ |
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1089 @dots{}\n\ |
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1090 endif\n\ |
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1091 error (err_msg);\n\ |
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1092 @end group\n\ |
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1093 @end example\n\ |
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1094 \n\ |
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1095 @noindent\n\ |
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1096 which will only stop execution if an error has been found.\n\ |
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1097 \n\ |
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1098 Implementation Note: For compatibility with @sc{matlab}, escape\n\ |
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1099 sequences (e.g., \"\\n\" => newline) are processed in @var{template}\n\ |
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1100 regardless of whether @var{template} has been defined within single quotes\n\ |
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1101 as long as there are two or more input arguments.\n\ |
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1102 Use a second backslash to stop interpolation of the escape sequence (e.g.,\n\ |
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1103 \"\\\\n\") or use the @code{regexptranslate} function.\n\ |
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1104 @seealso{warning, lasterror}\n\ |
3373 | 1105 @end deftypefn") |
897 | 1106 { |
7252 | 1107 octave_value retval; |
1108 | |
1109 int nargin = args.length (); | |
1110 | |
1111 octave_value_list nargs = args; | |
1112 | |
1113 std::string id; | |
1114 | |
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1115 if (nargin == 0) |
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1116 print_usage (); |
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1117 else |
7252 | 1118 { |
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1119 bool have_fmt = false; |
5567 | 1120 |
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1121 if (nargin == 1 && args(0).is_map ()) |
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1122 { |
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1123 // empty struct is not an error. return and resume calling function. |
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1124 if (args(0).is_empty ()) |
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1125 return retval; |
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1126 |
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1127 octave_value_list tmp; |
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1128 |
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1129 octave_scalar_map m = args(0).scalar_map_value (); |
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1130 |
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1131 // empty struct is not an error. return and resume calling function. |
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1132 if (m.nfields () == 0) |
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1133 return retval; |
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1134 |
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1135 if (m.contains ("message")) |
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1136 { |
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1137 octave_value c = m.getfield ("message"); |
7252 | 1138 |
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1139 if (c.is_string ()) |
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1140 nargs(0) = c.string_value (); |
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1141 } |
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1142 |
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1143 if (m.contains ("identifier")) |
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1144 { |
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1145 octave_value c = m.getfield ("identifier"); |
7252 | 1146 |
11058
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1147 if (c.is_string ()) |
17787
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1148 id = c.string_value (); |
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1149 } |
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1150 |
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1151 // FIXME: also need to handle "stack" field in error structure, |
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1152 // but that will require some more significant surgery on |
175b392e91fe
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1153 // handle_message, error_with_id, etc. |
10315
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1154 } |
14558
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1155 else |
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1156 { |
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1157 have_fmt = maybe_extract_message_id ("error", args, nargs, id); |
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1158 |
14558
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1159 if (error_state) |
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1160 return retval; |
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1161 } |
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1162 |
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|
1163 handle_message (error_with_id, id.c_str (), "unspecified error", |
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1164 nargs, have_fmt); |
7252 | 1165 } |
1166 | |
3934 | 1167 return retval; |
1489 | 1168 } |
897 | 1169 |
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1170 static octave_scalar_map |
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1171 warning_query (const std::string& id_arg) |
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1172 { |
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1173 octave_scalar_map retval; |
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1174 |
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1175 std::string id = id_arg; |
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1176 |
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1177 if (id == "last") |
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1178 id = Vlast_warning_id; |
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1179 |
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1180 Cell ident = warning_options.contents ("identifier"); |
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1181 Cell state = warning_options.contents ("state"); |
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1182 |
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1183 octave_idx_type nel = ident.numel (); |
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1184 |
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1185 bool found = false; |
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1186 |
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1187 std::string val; |
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1188 |
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1189 for (octave_idx_type i = 0; i < nel; i++) |
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1190 { |
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1191 if (ident(i).string_value () == id) |
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1192 { |
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1193 val = state(i).string_value (); |
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1194 found = true; |
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1195 break; |
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1196 } |
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1197 } |
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1198 |
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1199 if (! found) |
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1200 { |
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1201 for (octave_idx_type i = 0; i < nel; i++) |
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1202 { |
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1203 if (ident(i).string_value () == "all") |
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1204 { |
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1205 val = state(i).string_value (); |
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1206 found = true; |
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1207 break; |
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1208 } |
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1209 } |
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1210 } |
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1211 |
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1212 if (found) |
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1213 { |
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1214 retval.assign ("identifier", id); |
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1215 retval.assign ("state", val); |
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1216 } |
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1217 else |
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1218 error ("warning: unable to find default warning state!"); |
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1219 |
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1220 return retval; |
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1221 } |
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|
1222 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8347
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|
1223 DEFUN (warning, args, nargout, |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
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|
1224 "-*- texinfo -*-\n\ |
10840 | 1225 @deftypefn {Built-in Function} {} warning (@var{template}, @dots{})\n\ |
7252 | 1226 @deftypefnx {Built-in Function} {} warning (@var{id}, @var{template}, @dots{})\n\ |
14072
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
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|
1227 @deftypefnx {Built-in Function} {} warning (\"on\", @var{id})\n\ |
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1228 @deftypefnx {Built-in Function} {} warning (\"off\", @var{id})\n\ |
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|
1229 @deftypefnx {Built-in Function} {} warning (\"query\", @var{id})\n\ |
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|
1230 @deftypefnx {Built-in Function} {} warning (\"error\", @var{id})\n\ |
18128
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1231 @deftypefnx {Built-in Function} {} warning (@var{state}, \"backtrace\")\n\ |
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1232 @deftypefnx {Built-in Function} {} warning (@var{state}, @var{id}, \"local\")\n\ |
5781 | 1233 Format the optional arguments under the control of the template string\n\ |
1234 @var{template} using the same rules as the @code{printf} family of\n\ | |
1235 functions (@pxref{Formatted Output}) and print the resulting message\n\ | |
1236 on the @code{stderr} stream. The message is prefixed by the character\n\ | |
1237 string @samp{warning: }.\n\ | |
1238 You should use this function when you want to notify the user\n\ | |
3600 | 1239 of an unusual condition, but only when it makes sense for your program\n\ |
1240 to go on.\n\ | |
5781 | 1241 \n\ |
1242 The optional message identifier allows users to enable or disable\n\ | |
15524
15628a84a4fa
Document form of warning IDs is NAMESPACE:WARNING-NAME (bug #37559)
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|
1243 warnings tagged by @var{id}. A message identifier is of the form\n\ |
17281
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|
1244 \"NAMESPACE:WARNING-NAME\". Octave's own warnings use the @qcode{\"Octave\"}\n\ |
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|
1245 namespace (@pxref{XREFwarning_ids}). The special identifier @qcode{\"all\"}\n\ |
15524
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|
1246 may be used to set the state of all warnings.\n\ |
5781 | 1247 \n\ |
17281
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|
1248 If the first argument is @qcode{\"on\"} or @qcode{\"off\"},\n\ |
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|
1249 set the state of a particular warning using the identifier @var{id}. If the\n\ |
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|
1250 first argument is @qcode{\"query\"}, query the state of this warning\n\ |
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|
1251 instead. If the identifier is omitted, a value of @qcode{\"all\"} is\n\ |
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|
1252 assumed. If you set the state of a warning to @qcode{\"error\"}, the\n\ |
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|
1253 warning named by @var{id} is handled as if it were an error instead. So,\n\ |
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|
1254 for example, the following handles all warnings as errors:\n\ |
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1255 \n\ |
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1256 @example\n\ |
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1257 @group\n\ |
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1258 warning (\"error\");\n\ |
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1259 @end group\n\ |
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1260 @end example\n\ |
15173
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|
1261 \n\ |
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1262 If the state is @qcode{\"on\"} or @qcode{\"off\"} and the third argument\n\ |
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1263 is @qcode{\"backtrace\"}, then a stack trace is printed along with the\n\ |
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1264 warning message when warnings occur inside function calls. This option\n\ |
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|
1265 is enabled by default.\n\ |
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1266 \n\ |
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1267 If the state is @qcode{\"on\"}, @qcode{\"off\"}, or @qcode{\"error\"}\n\ |
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1268 and the third argument is @qcode{\"local\"}, then the warning state\n\ |
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1269 will be set temporarily, until the end of the current function.\n\ |
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1270 Changes to warning states that are set locally affect the current\n\ |
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1271 function and all functions called from the current scope. The\n\ |
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1272 previous warning state is restored on return from the current\n\ |
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|
1273 function. The @qcode{\"local\"} option is ignored if used in the top-level\n\ |
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1274 workspace.\n\ |
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1275 \n\ |
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1276 Implementation Note: For compatibility with @sc{matlab}, escape\n\ |
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1277 sequences (e.g., \"\\n\" => newline) are processed in @var{template}\n\ |
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1278 regardless of whether @var{template} has been defined within single quotes\n\ |
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1279 as long as there are two or more input arguments.\n\ |
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1280 Use a second backslash to stop interpolation of the escape sequence (e.g.,\n\ |
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1281 \"\\\\n\") or use the @code{regexptranslate} function.\n\ |
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1282 @seealso{warning_ids, lastwarn, error}\n\ |
3373 | 1283 @end deftypefn") |
1489 | 1284 { |
5567 | 1285 octave_value retval; |
3934 | 1286 |
5567 | 1287 int nargin = args.length (); |
1288 int argc = nargin + 1; | |
3934 | 1289 |
3935 | 1290 bool done = false; |
3934 | 1291 |
5567 | 1292 if (argc > 1 && args.all_strings_p ()) |
3935 | 1293 { |
1294 string_vector argv = args.make_argv ("warning"); | |
1295 | |
1296 if (! error_state) | |
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1297 { |
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1298 std::string arg1 = argv(1); |
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1299 std::string arg2 = "all"; |
5567 | 1300 |
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1301 if (argc >= 3) |
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1302 arg2 = argv(2); |
5567 | 1303 |
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1304 if (arg1 == "on" || arg1 == "off" || arg1 == "error") |
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1305 { |
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1306 octave_map old_warning_options = warning_options; |
5567 | 1307 |
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1308 if (argc == 4 && argv(3) == "local" |
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1309 && ! symbol_table::at_top_level ()) |
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1310 { |
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1311 symbol_table::scope_id scope |
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1312 = octave_call_stack::current_scope (); |
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1313 |
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1314 symbol_table::context_id context |
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1315 = octave_call_stack::current_context (); |
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1316 |
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1317 octave_scalar_map val = warning_query (arg2); |
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1318 |
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1319 octave_value curr_state = val.contents ("state"); |
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1320 |
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1321 // FIXME: this might be better with a dictionary object. |
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1322 |
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1323 octave_value curr_warning_states |
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1324 = symbol_table::varval (".saved_warning_states.", |
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1325 scope, context); |
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1326 |
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1327 octave_map m; |
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1328 |
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1329 if (curr_warning_states.is_defined ()) |
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1330 m = curr_warning_states.map_value (); |
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1331 else |
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1332 { |
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1333 string_vector fields (2); |
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1334 |
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1335 fields(0) = "identifier"; |
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1336 fields(1) = "state"; |
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1337 |
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1338 m = octave_map (dim_vector (0, 1), fields); |
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1339 } |
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1340 |
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1341 if (error_state) |
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1342 panic_impossible (); |
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1343 |
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1344 Cell ids = m.contents ("identifier"); |
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1345 Cell states = m.contents ("state"); |
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1346 |
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1347 octave_idx_type nel = states.numel (); |
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1348 bool found = false; |
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1349 octave_idx_type i; |
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1350 for (i = 0; i < nel; i++) |
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1351 { |
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1352 std::string id = ids(i).string_value (); |
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1353 |
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1354 if (error_state) |
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1355 panic_impossible (); |
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1356 |
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1357 if (id == arg2) |
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1358 { |
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1359 states(i) = curr_state; |
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1360 found = true; |
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1361 break; |
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1362 } |
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1363 } |
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1364 |
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1365 if (! found) |
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1366 { |
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1367 m.resize (dim_vector (nel+1, 1)); |
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1368 |
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1369 ids.resize (dim_vector (nel+1, 1)); |
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1370 states.resize (dim_vector (nel+1, 1)); |
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1371 |
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1372 ids(nel) = arg2; |
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1373 states(nel) = curr_state; |
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1374 } |
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1375 |
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1376 m.contents ("identifier") = ids; |
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1377 m.contents ("state") = states; |
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1378 |
16442
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1379 symbol_table::assign |
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1380 (".saved_warning_states.", m, scope, context); |
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1381 |
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1382 // Now ignore the "local" argument and continue to |
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1383 // handle the current setting. |
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1384 argc--; |
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1385 } |
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1386 |
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1387 if (arg2 == "all") |
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1388 { |
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1389 octave_map tmp; |
3934 | 1390 |
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1391 Cell id (1, 1); |
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1392 Cell st (1, 1); |
7202 | 1393 |
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1394 id(0) = arg2; |
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1395 st(0) = arg1; |
7202 | 1396 |
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1397 // Since internal Octave functions are not |
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1398 // compatible, turning all warnings into errors |
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1399 // should leave the state of |
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1400 // Octave:matlab-incompatible alone. |
7202 | 1401 |
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1402 if (arg1 == "error" |
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1403 && warning_options.contains ("identifier")) |
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1404 { |
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1405 octave_idx_type n = 1; |
7206 | 1406 |
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1407 Cell tid = warning_options.contents ("identifier"); |
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1408 Cell tst = warning_options.contents ("state"); |
7202 | 1409 |
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1410 for (octave_idx_type i = 0; i < tid.numel (); i++) |
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1411 { |
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1412 octave_value vid = tid(i); |
7202 | 1413 |
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1414 if (vid.is_string ()) |
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1415 { |
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1416 std::string key = vid.string_value (); |
7202 | 1417 |
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1418 if (key == "Octave:matlab-incompatible" |
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1419 || key == "Octave:single-quote-string") |
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1420 { |
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changeset
|
1421 id.resize (dim_vector (1, n+1)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1422 st.resize (dim_vector (1, n+1)); |
7202 | 1423 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1424 id(n) = tid(i); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1425 st(n) = tst(i); |
7206 | 1426 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1427 n++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1428 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1429 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1430 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1431 } |
7202 | 1432 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1433 tmp.assign ("identifier", id); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1434 tmp.assign ("state", st); |
5567 | 1435 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1436 warning_options = tmp; |
5567 | 1437 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1438 done = true; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1439 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1440 else if (arg2 == "backtrace") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1441 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1442 if (arg1 != "error") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1443 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1444 Vbacktrace_on_warning = (arg1 == "on"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1445 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1446 } |
57a59eae83cc
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10160
diff
changeset
|
1447 } |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1448 else if (arg2 == "debug") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1449 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1450 if (arg1 != "error") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1451 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1452 Vdebug_on_warning = (arg1 == "on"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1453 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1454 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1455 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1456 else if (arg2 == "verbose") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1457 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1458 if (arg1 != "error") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1459 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1460 Vverbose_warning = (arg1 == "on"); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1461 done = true; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1462 } |
57a59eae83cc
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diff
changeset
|
1463 } |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1464 else if (arg2 == "quiet") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1465 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1466 if (arg1 != "error") |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1467 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1468 Vquiet_warning = (arg1 == "on"); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1469 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1470 } |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1471 } |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1472 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1473 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1474 if (arg2 == "last") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1475 arg2 = Vlast_warning_id; |
5567 | 1476 |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1477 if (arg2 == "all") |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1478 initialize_warning_options (arg1); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1479 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1480 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1481 Cell ident = warning_options.contents ("identifier"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1482 Cell state = warning_options.contents ("state"); |
5567 | 1483 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1484 octave_idx_type nel = ident.numel (); |
5567 | 1485 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1486 bool found = false; |
5567 | 1487 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1488 for (octave_idx_type i = 0; i < nel; i++) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1489 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1490 if (ident(i).string_value () == arg2) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1491 { |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1492 // FIXME: if state for "all" is same as arg1, |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1493 // we can simply remove the item |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1494 // from the list. |
5567 | 1495 |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1496 state(i) = arg1; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1497 warning_options.assign ("state", state); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1498 found = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1499 break; |
57a59eae83cc
untabify src C++ source files
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parents:
10160
diff
changeset
|
1500 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1501 } |
5567 | 1502 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1503 if (! found) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1504 { |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1505 // FIXME: if state for "all" is same as arg1, |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1506 // we don't need to do anything. |
5567 | 1507 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1508 ident.resize (dim_vector (1, nel+1)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1509 state.resize (dim_vector (1, nel+1)); |
5567 | 1510 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1511 ident(nel) = arg2; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1512 state(nel) = arg1; |
5567 | 1513 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1514 warning_options.clear (); |
5567 | 1515 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1516 warning_options.assign ("identifier", ident); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1517 warning_options.assign ("state", state); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1518 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1519 } |
5567 | 1520 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1521 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1522 } |
5567 | 1523 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1524 if (done && nargout > 0) |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1525 retval = old_warning_options; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1526 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1527 else if (arg1 == "query") |
57a59eae83cc
untabify src C++ source files
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parents:
10160
diff
changeset
|
1528 { |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1529 if (arg2 == "all") |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1530 retval = warning_options; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1531 else if (arg2 == "backtrace" || arg2 == "debug" |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1532 || arg2 == "verbose" || arg2 == "quiet") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1533 { |
11058
3329616444f0
replace Octave_map in debug.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
11029
diff
changeset
|
1534 octave_scalar_map tmp; |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1535 tmp.assign ("identifier", arg2); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1536 if (arg2 == "backtrace") |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1537 tmp.assign ("state", Vbacktrace_on_warning ? "on" : "off"); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1538 else if (arg2 == "debug") |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1539 tmp.assign ("state", Vdebug_on_warning ? "on" : "off"); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1540 else if (arg2 == "verbose") |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1541 tmp.assign ("state", Vverbose_warning ? "on" : "off"); |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1542 else |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1543 tmp.assign ("state", Vquiet_warning ? "on" : "off"); |
5582 | 1544 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1545 retval = tmp; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1546 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1547 else |
15427
6823ad7a25b1
implement local option for warnings
John W. Eaton <jwe@octave.org>
parents:
15195
diff
changeset
|
1548 retval = warning_query (arg2); |
5567 | 1549 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1550 done = true; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1551 } |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1552 } |
3934 | 1553 } |
5567 | 1554 else if (argc == 1) |
1555 { | |
1556 retval = warning_options; | |
3934 | 1557 |
5567 | 1558 done = true; |
1559 } | |
1560 else if (argc == 2) | |
1561 { | |
1562 octave_value arg = args(0); | |
1563 | |
11058
3329616444f0
replace Octave_map in debug.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
11029
diff
changeset
|
1564 octave_map old_warning_options = warning_options; |
5567 | 1565 |
1566 if (arg.is_map ()) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1567 { |
11058
3329616444f0
replace Octave_map in debug.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
11029
diff
changeset
|
1568 octave_map m = arg.map_value (); |
5567 | 1569 |
10315
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1570 if (m.contains ("identifier") && m.contains ("state")) |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1571 warning_options = m; |
57a59eae83cc
untabify src C++ source files
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10160
diff
changeset
|
1572 else |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
1573 error ("warning: expecting structure with fields 'identifier' and 'state'"); |
5567 | 1574 |
10315
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1575 done = true; |
5567 | 1576 |
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1577 if (nargout > 0) |
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1578 retval = old_warning_options; |
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|
1579 } |
5567 | 1580 } |
1581 | |
1582 if (! (error_state || done)) | |
3935 | 1583 { |
5567 | 1584 octave_value_list nargs = args; |
1585 | |
1586 std::string id; | |
1587 | |
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better compatibility for error/warning message IDs and format specifiers
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1588 bool have_fmt = maybe_extract_message_id ("warning", args, nargs, id); |
5567 | 1589 |
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1590 if (error_state) |
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1591 return retval; |
5567 | 1592 |
3935 | 1593 std::string prev_msg = Vlast_warning_message; |
1594 | |
5567 | 1595 std::string curr_msg = handle_message (warning_with_id, id.c_str (), |
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1596 "unspecified warning", nargs, |
0c9c85e702ca
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|
1597 have_fmt); |
3935 | 1598 |
1599 if (nargout > 0) | |
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1600 retval = prev_msg; |
3935 | 1601 } |
1602 | |
3934 | 1603 return retval; |
1604 } | |
1605 | |
10605
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1606 octave_value_list |
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1607 set_warning_state (const std::string& id, const std::string& state) |
5794 | 1608 { |
1609 octave_value_list args; | |
1610 | |
1611 args(1) = id; | |
10605
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allow non-integer ranges as indices conditionally
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1612 args(0) = state; |
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1613 |
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1614 return Fwarning (args, 1); |
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allow non-integer ranges as indices conditionally
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1615 } |
5794 | 1616 |
10605
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1617 octave_value_list |
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1618 set_warning_state (const octave_value_list& args) |
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1619 { |
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1620 return Fwarning (args, 1); |
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1621 } |
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1622 |
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1623 void |
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1624 disable_warning (const std::string& id) |
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1625 { |
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|
1626 set_warning_state (id, "off"); |
5794 | 1627 } |
1628 | |
1629 void | |
1630 initialize_default_warning_state (void) | |
1631 { | |
1632 initialize_warning_options ("on"); | |
1633 | |
1634 // Most people will want to have the following disabled. | |
1635 | |
1636 disable_warning ("Octave:array-to-scalar"); | |
1637 disable_warning ("Octave:array-to-vector"); | |
1638 disable_warning ("Octave:imag-to-real"); | |
1639 disable_warning ("Octave:matlab-incompatible"); | |
1640 disable_warning ("Octave:missing-semicolon"); | |
1641 disable_warning ("Octave:neg-dim-as-zero"); | |
1642 disable_warning ("Octave:resize-on-range-error"); | |
1643 disable_warning ("Octave:separator-insert"); | |
1644 disable_warning ("Octave:single-quote-string"); | |
1645 disable_warning ("Octave:str-to-num"); | |
13841
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1646 disable_warning ("Octave:mixed-string-concat"); |
5794 | 1647 disable_warning ("Octave:variable-switch-label"); |
1648 } | |
1649 | |
6361 | 1650 DEFUN (lasterror, args, , |
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Rik <rik@octave.org>
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|
1651 "-*- texinfo -*-\n\ |
11572
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Grammarcheck Texinfo for files in src directory.
Rik <octave@nomad.inbox5.com>
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1652 @deftypefn {Built-in Function} {@var{lasterr} =} lasterror ()\n\ |
7d6d8c1e471f
Grammarcheck Texinfo for files in src directory.
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|
1653 @deftypefnx {Built-in Function} {} lasterror (@var{err})\n\ |
14361
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1654 @deftypefnx {Built-in Function} {} lasterror (\"reset\")\n\ |
14093
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Rik <octave@nomad.inbox5.com>
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1655 Query or set the last error message structure. When called without\n\ |
050bc580cb60
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Rik <octave@nomad.inbox5.com>
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1656 arguments, return a structure containing the last error message and other\n\ |
12692
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|
1657 information related to this error. The elements of the structure are:\n\ |
6361 | 1658 \n\ |
17281
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|
1659 @table @code\n\ |
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|
1660 @item message\n\ |
6361 | 1661 The text of the last error message\n\ |
10840 | 1662 \n\ |
17281
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1663 @item identifier\n\ |
6361 | 1664 The message identifier of this error message\n\ |
10840 | 1665 \n\ |
17281
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1666 @item stack\n\ |
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1667 A structure containing information on where the message occurred. This may\n\ |
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|
1668 be an empty structure if the information cannot\n\ |
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1669 be obtained. The fields of the structure are:\n\ |
6361 | 1670 \n\ |
17281
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1671 @table @code\n\ |
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|
1672 @item file\n\ |
6361 | 1673 The name of the file where the error occurred\n\ |
10840 | 1674 \n\ |
17281
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1675 @item name\n\ |
7001 | 1676 The name of function in which the error occurred\n\ |
10840 | 1677 \n\ |
17281
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1678 @item line\n\ |
7001 | 1679 The line number at which the error occurred\n\ |
10840 | 1680 \n\ |
17281
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|
1681 @item column\n\ |
6361 | 1682 An optional field with the column number at which the error occurred\n\ |
1683 @end table\n\ | |
1684 @end table\n\ | |
1685 \n\ | |
12692
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|
1686 The last error structure may be set by passing a scalar structure, @var{err},\n\ |
e7b03b8662a2
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|
1687 as input. Any fields of @var{err} that match those above are set while any\n\ |
e7b03b8662a2
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|
1688 unspecified fields are initialized with default values.\n\ |
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|
1689 \n\ |
17281
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|
1690 If @code{lasterror} is called with the argument @qcode{\"reset\"}, all\n\ |
bc924baa2c4e
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|
1691 fields are set to their default values.\n\ |
15173
8593bed236f1
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Rik <rik@octave.org>
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15088
diff
changeset
|
1692 @seealso{lasterr, error, lastwarn}\n\ |
6361 | 1693 @end deftypefn") |
1694 { | |
1695 octave_value retval; | |
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|
1696 int nargin = args.length (); |
6361 | 1697 |
10066
2cd940306a06
make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1698 unwind_protect frame; |
7976
736124a4fa3d
lasterr, lasterror: unwind-protect error_state
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diff
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|
1699 |
10066
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|
1700 frame.protect_var (error_state); |
7976
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lasterr, lasterror: unwind-protect error_state
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1701 error_state = 0; |
736124a4fa3d
lasterr, lasterror: unwind-protect error_state
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diff
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|
1702 |
6361 | 1703 if (nargin < 2) |
1704 { | |
11058
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replace Octave_map in debug.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
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11029
diff
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|
1705 octave_scalar_map err; |
6361 | 1706 |
1707 err.assign ("message", Vlast_error_message); | |
1708 err.assign ("identifier", Vlast_error_id); | |
1709 | |
9166
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use complete stack trace information for lasterror
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diff
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|
1710 err.assign ("stack", octave_value (Vlast_error_stack)); |
6361 | 1711 |
1712 if (nargin == 1) | |
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1713 { |
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|
1714 if (args(0).is_string ()) |
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|
1715 { |
57a59eae83cc
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|
1716 if (args(0).string_value () == "reset") |
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untabify src C++ source files
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1717 { |
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|
1718 Vlast_error_message = std::string (); |
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|
1719 Vlast_error_id = std::string (); |
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|
1720 |
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|
1721 Vlast_error_stack = initialize_last_error_stack (); |
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|
1722 } |
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|
1723 else |
14861
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|
1724 error ("lasterror: unrecognized string argument"); |
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|
1725 } |
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|
1726 else if (args(0).is_map ()) |
57a59eae83cc
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|
1727 { |
11058
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replace Octave_map in debug.cc and error.cc
Jaroslav Hajek <highegg@gmail.com>
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|
1728 octave_scalar_map new_err = args(0).scalar_map_value (); |
16492
91c32a702284
Correctly fill stack field in lasterror() when given as input.
Rik <rik@octave.org>
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|
1729 octave_scalar_map new_err_stack; |
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|
1730 std::string new_error_message; |
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|
1731 std::string new_error_id; |
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|
1732 std::string new_error_file; |
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|
1733 std::string new_error_name; |
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|
1734 int new_error_line = -1; |
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|
1735 int new_error_column = -1; |
6361 | 1736 |
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|
1737 if (! error_state && new_err.contains ("message")) |
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1738 { |
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|
1739 const std::string tmp = |
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1740 new_err.getfield ("message").string_value (); |
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|
1741 new_error_message = tmp; |
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1742 } |
6361 | 1743 |
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|
1744 if (! error_state && new_err.contains ("identifier")) |
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|
1745 { |
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|
1746 const std::string tmp = |
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|
1747 new_err.getfield ("identifier").string_value (); |
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|
1748 new_error_id = tmp; |
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|
1749 } |
6361 | 1750 |
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|
1751 if (! error_state && new_err.contains ("stack")) |
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|
1752 { |
17787
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|
1753 new_err_stack = |
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|
1754 new_err.getfield ("stack").scalar_map_value (); |
6361 | 1755 |
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1756 if (! error_state && new_err_stack.contains ("file")) |
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1757 { |
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|
1758 const std::string tmp = |
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1759 new_err_stack.getfield ("file").string_value (); |
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1760 new_error_file = tmp; |
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1761 } |
6361 | 1762 |
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1763 if (! error_state && new_err_stack.contains ("name")) |
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1764 { |
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1765 const std::string tmp = |
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1766 new_err_stack.getfield ("name").string_value (); |
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1767 new_error_name = tmp; |
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1768 } |
6361 | 1769 |
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1770 if (! error_state && new_err_stack.contains ("line")) |
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1771 { |
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1772 const int tmp = |
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1773 new_err_stack.getfield ("line").nint_value (); |
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1774 new_error_line = tmp; |
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1775 } |
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1776 |
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1777 if (! error_state && new_err_stack.contains ("column")) |
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1778 { |
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1779 const int tmp = |
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1780 new_err_stack.getfield ("column").nint_value (); |
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1781 new_error_column = tmp; |
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1782 } |
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1783 } |
6361 | 1784 |
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1785 if (! error_state) |
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1786 { |
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1787 Vlast_error_message = new_error_message; |
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1788 Vlast_error_id = new_error_id; |
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1789 |
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1790 if (new_err.contains ("stack")) |
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|
1791 { |
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1792 new_err_stack.setfield ("file", new_error_file); |
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1793 new_err_stack.setfield ("name", new_error_name); |
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1794 new_err_stack.setfield ("line", new_error_line); |
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1795 new_err_stack.setfield ("column", new_error_column); |
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1796 Vlast_error_stack = new_err_stack; |
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1797 } |
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|
1798 else |
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|
1799 { |
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1800 // No stack field. Fill it in with backtrace info. |
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1801 octave_idx_type curr_frame = -1; |
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1802 |
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1803 Vlast_error_stack |
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1804 = octave_call_stack::backtrace (0, curr_frame); |
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1805 } |
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1806 } |
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1807 } |
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1808 else |
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1809 error ("lasterror: argument must be a structure or a string"); |
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1810 } |
6361 | 1811 |
6483 | 1812 if (! error_state) |
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1813 retval = err; |
6361 | 1814 } |
1815 else | |
1816 print_usage (); | |
1817 | |
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1818 return retval; |
6361 | 1819 } |
1820 | |
5567 | 1821 DEFUN (lasterr, args, nargout, |
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1822 "-*- texinfo -*-\n\ |
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1823 @deftypefn {Built-in Function} {[@var{msg}, @var{msgid}] =} lasterr ()\n\ |
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1824 @deftypefnx {Built-in Function} {} lasterr (@var{msg})\n\ |
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1825 @deftypefnx {Built-in Function} {} lasterr (@var{msg}, @var{msgid})\n\ |
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1826 Query or set the last error message. When called without input arguments,\n\ |
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1827 return the last error message and message identifier. With one\n\ |
5567 | 1828 argument, set the last error message to @var{msg}. With two arguments,\n\ |
1829 also set the last message identifier.\n\ | |
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1830 @seealso{lasterror, error, lastwarn}\n\ |
3935 | 1831 @end deftypefn") |
1832 { | |
1833 octave_value_list retval; | |
1834 | |
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1835 unwind_protect frame; |
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1836 |
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1837 frame.protect_var (error_state); |
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1838 error_state = 0; |
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1839 |
3935 | 1840 int argc = args.length () + 1; |
1841 | |
5567 | 1842 if (argc < 4) |
5335 | 1843 { |
1844 string_vector argv = args.make_argv ("lasterr"); | |
3935 | 1845 |
5335 | 1846 if (! error_state) |
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1847 { |
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1848 std::string prev_error_id = Vlast_error_id; |
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1849 std::string prev_error_message = Vlast_error_message; |
5567 | 1850 |
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1851 if (argc > 2) |
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1852 Vlast_error_id = argv(2); |
5567 | 1853 |
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1854 if (argc > 1) |
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1855 Vlast_error_message = argv(1); |
5567 | 1856 |
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1857 if (argc == 1 || nargout > 0) |
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1858 { |
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1859 retval(1) = prev_error_id; |
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1860 retval(0) = prev_error_message; |
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1861 } |
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1862 } |
5567 | 1863 else |
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1864 error ("lasterr: all arguments must be strings"); |
5335 | 1865 } |
3935 | 1866 else |
5823 | 1867 print_usage (); |
3935 | 1868 |
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1869 return retval; |
3935 | 1870 } |
1871 | |
5567 | 1872 DEFUN (lastwarn, args, nargout, |
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1873 "-*- texinfo -*-\n\ |
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1874 @deftypefn {Built-in Function} {[@var{msg}, @var{msgid}] =} lastwarn ()\n\ |
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1875 @deftypefnx {Built-in Function} {} lastwarn (@var{msg})\n\ |
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1876 @deftypefnx {Built-in Function} {} lastwarn (@var{msg}, @var{msgid})\n\ |
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1877 Query or set the last warning message. When called without input arguments,\n\ |
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1878 return the last warning message and message identifier. With one\n\ |
5567 | 1879 argument, set the last warning message to @var{msg}. With two arguments,\n\ |
1880 also set the last message identifier.\n\ | |
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1881 @seealso{warning, lasterror, lasterr}\n\ |
3934 | 1882 @end deftypefn") |
1883 { | |
1884 octave_value_list retval; | |
1885 | |
1886 int argc = args.length () + 1; | |
1887 | |
5567 | 1888 if (argc < 4) |
1889 { | |
1890 string_vector argv = args.make_argv ("lastwarn"); | |
1891 | |
1892 if (! error_state) | |
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1893 { |
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1894 std::string prev_warning_id = Vlast_warning_id; |
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1895 std::string prev_warning_message = Vlast_warning_message; |
5567 | 1896 |
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1897 if (argc > 2) |
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1898 Vlast_warning_id = argv(2); |
3934 | 1899 |
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1900 if (argc > 1) |
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1901 Vlast_warning_message = argv(1); |
5567 | 1902 |
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1903 if (argc == 1 || nargout > 0) |
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1904 { |
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1905 warning_state = 0; |
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1906 retval(1) = prev_warning_id; |
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1907 retval(0) = prev_warning_message; |
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1908 } |
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1909 } |
5567 | 1910 else |
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1911 error ("lastwarn: all arguments must be strings"); |
5567 | 1912 } |
3934 | 1913 else |
5823 | 1914 print_usage (); |
3934 | 1915 |
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1916 return retval; |
897 | 1917 } |
1918 | |
19111 | 1919 DEFUN (__usage__, args, , |
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1920 "-*- texinfo -*-\n\ |
3373 | 1921 @deftypefn {Built-in Function} {} usage (@var{msg})\n\ |
1922 Print the message @var{msg}, prefixed by the string @samp{usage: }, and\n\ | |
1923 set Octave's internal error state such that control will return to the\n\ | |
1924 top level without evaluating any more commands. This is useful for\n\ | |
1925 aborting from functions.\n\ | |
1926 \n\ | |
1927 After @code{usage} is evaluated, Octave will print a traceback of all\n\ | |
1928 the function calls leading to the usage message.\n\ | |
899 | 1929 \n\ |
3373 | 1930 You should use this function for reporting problems errors that result\n\ |
1931 from an improper call to a function, such as calling a function with an\n\ | |
1932 incorrect number of arguments, or with arguments of the wrong type. For\n\ | |
1933 example, most functions distributed with Octave begin with code like\n\ | |
1934 this\n\ | |
1935 \n\ | |
1936 @example\n\ | |
1937 @group\n\ | |
1938 if (nargin != 2)\n\ | |
1939 usage (\"foo (a, b)\");\n\ | |
1940 endif\n\ | |
1941 @end group\n\ | |
1942 @end example\n\ | |
1943 \n\ | |
1944 @noindent\n\ | |
1945 to check for the proper number of arguments.\n\ | |
1946 @end deftypefn") | |
899 | 1947 { |
3934 | 1948 octave_value_list retval; |
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1949 handle_message (usage_with_id, "", "unknown", args, true); |
3934 | 1950 return retval; |
899 | 1951 } |
1952 | |
5794 | 1953 DEFUN (beep_on_error, args, nargout, |
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1954 "-*- texinfo -*-\n\ |
10840 | 1955 @deftypefn {Built-in Function} {@var{val} =} beep_on_error ()\n\ |
5794 | 1956 @deftypefnx {Built-in Function} {@var{old_val} =} beep_on_error (@var{new_val})\n\ |
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1957 @deftypefnx {Built-in Function} {} beep_on_error (@var{new_val}, \"local\")\n\ |
5794 | 1958 Query or set the internal variable that controls whether Octave will try\n\ |
1959 to ring the terminal bell before printing an error message.\n\ | |
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1960 \n\ |
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1961 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1962 variable is changed locally for the function and any subroutines it calls. \n\ |
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1963 The original variable value is restored when exiting the function.\n\ |
5794 | 1964 @end deftypefn") |
3707 | 1965 { |
5794 | 1966 return SET_INTERNAL_VARIABLE (beep_on_error); |
3707 | 1967 } |
1968 | |
5794 | 1969 DEFUN (debug_on_error, args, nargout, |
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1970 "-*- texinfo -*-\n\ |
10840 | 1971 @deftypefn {Built-in Function} {@var{val} =} debug_on_error ()\n\ |
5794 | 1972 @deftypefnx {Built-in Function} {@var{old_val} =} debug_on_error (@var{new_val})\n\ |
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1973 @deftypefnx {Built-in Function} {} debug_on_error (@var{new_val}, \"local\")\n\ |
5794 | 1974 Query or set the internal variable that controls whether Octave will try\n\ |
3707 | 1975 to enter the debugger when an error is encountered. This will also\n\ |
1976 inhibit printing of the normal traceback message (you will only see\n\ | |
5794 | 1977 the top-level error message).\n\ |
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1978 \n\ |
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1979 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1980 variable is changed locally for the function and any subroutines it calls. \n\ |
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1981 The original variable value is restored when exiting the function.\n\ |
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1982 @seealso{debug_on_warning, debug_on_interrupt}\n\ |
5794 | 1983 @end deftypefn") |
1984 { | |
1985 return SET_INTERNAL_VARIABLE (debug_on_error); | |
1986 } | |
3707 | 1987 |
5794 | 1988 DEFUN (debug_on_warning, args, nargout, |
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1989 "-*- texinfo -*-\n\ |
10840 | 1990 @deftypefn {Built-in Function} {@var{val} =} debug_on_warning ()\n\ |
5794 | 1991 @deftypefnx {Built-in Function} {@var{old_val} =} debug_on_warning (@var{new_val})\n\ |
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1992 @deftypefnx {Built-in Function} {} debug_on_warning (@var{new_val}, \"local\")\n\ |
5794 | 1993 Query or set the internal variable that controls whether Octave will try\n\ |
1994 to enter the debugger when a warning is encountered.\n\ | |
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1995 \n\ |
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1996 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1997 variable is changed locally for the function and any subroutines it calls. \n\ |
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1998 The original variable value is restored when exiting the function.\n\ |
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1999 @seealso{debug_on_error, debug_on_interrupt}\n\ |
5794 | 2000 @end deftypefn") |
2001 { | |
2002 return SET_INTERNAL_VARIABLE (debug_on_warning); | |
2174 | 2003 } |
2004 | |
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2005 std::string |
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2006 last_error_message (void) |
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2007 { |
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2008 return Vlast_error_message; |
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2009 } |
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2010 |
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2011 std::string |
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2012 last_error_id (void) |
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2013 { |
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2014 return Vlast_error_id; |
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2015 } |
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2016 |
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2017 octave_map |
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2018 last_error_stack (void) |
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2019 { |
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2020 return Vlast_error_stack; |
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2021 } |
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2022 |
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2023 std::string |
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2024 last_warning_message (void) |
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2025 { |
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2026 return Vlast_warning_message; |
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2027 } |
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2028 |
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2029 std::string |
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2030 last_warning_id (void) |
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2031 { |
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2032 return Vlast_warning_id; |
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2033 } |
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2034 |
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2035 void |
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2036 interpreter_try (unwind_protect& frame) |
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2037 { |
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2038 frame.protect_var (error_state); |
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2039 frame.protect_var (buffer_error_messages); |
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2040 frame.protect_var (Vdebug_on_error); |
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2041 frame.protect_var (Vdebug_on_warning); |
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2042 |
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2043 buffer_error_messages++; |
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2044 Vdebug_on_error = false; |
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2045 Vdebug_on_warning = false; |
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2046 } |
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2047 |
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2048 |