src/settings.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "settings.h"
  21 #include "irrlichttypes_bloated.h"
  22 #include "exceptions.h"
  23 #include "jthread/jmutexautolock.h"
  24 #include "strfnd.h"
  25 #include <iostream>
  26 #include <fstream>
  27 #include <sstream>
  28 #include "debug.h"
  29 #include "log.h"
  30 #include "util/serialize.h"
  31 #include "filesys.h"
  32 #include "noise.h"
  33 #include <cctype>
  34 #include <algorithm>
  35
  36
  37 Settings::~Settings()
  38 {
  39         clear();
  40 }
  41
  42
  43 Settings & Settings::operator += (const Settings &other)
  44 {
  45         update(other);
  46
  47         return *this;
  48 }
  49
  50
  51 Settings & Settings::operator = (const Settings &other)
  52 {
  53         if (&other == this)
  54                 return *this;
  55
  56         JMutexAutoLock lock(m_mutex);
  57         JMutexAutoLock lock2(other.m_mutex);
  58
  59         clearNoLock();
  60         updateNoLock(other);
  61
  62         return *this;
  63 }
  64
  65
  66 std::string Settings::sanitizeString(const std::string &value)
  67 {
  68         std::string str = value;
  69         for (const char *s = "\t\n\v\f\r\b =\""; *s; s++)
  70                 str.erase(std::remove(str.begin(), str.end(), *s), str.end());
  71
  72         return str;
  73 }
  74
  75
  76 std::string Settings::getMultiline(std::istream &is, size_t *num_lines)
  77 {
  78         size_t lines = 1;
  79         std::string value;
  80         std::string line;
  81
  82         while (is.good()) {
  83                 lines++;
  84                 std::getline(is, line);
  85                 if (line == "\"\"\"")
  86                         break;
  87                 value += line;
  88                 value.push_back('\n');
  89         }
  90
  91         size_t len = value.size();
  92         if (len)
  93                 value.erase(len - 1);
  94
  95         if (num_lines)
  96                 *num_lines = lines;
  97
  98         return value;
  99 }
 100
 101
 102 bool Settings::readConfigFile(const char *filename)
 103 {
 104         std::ifstream is(filename);
 105         if (!is.good())
 106                 return false;
 107
 108         return parseConfigLines(is, "");
 109 }
 110
 111
 112 bool Settings::parseConfigLines(std::istream &is, const std::string &end)
 113 {
 114         JMutexAutoLock lock(m_mutex);
 115
 116         std::string line, name, value;
 117
 118         while (is.good()) {
 119                 std::getline(is, line);
 120                 SettingsParseEvent event = parseConfigObject(line, end, name, value);
 121
 122                 switch (event) {
 123                 case SPE_NONE:
 124                 case SPE_INVALID:
 125                 case SPE_COMMENT:
 126                         break;
 127                 case SPE_KVPAIR:
 128                         m_settings[name] = SettingsEntry(value);
 129                         break;
 130                 case SPE_END:
 131                         return true;
 132                 case SPE_GROUP: {
 133                         Settings *group = new Settings;
 134                         if (!group->parseConfigLines(is, "}")) {
 135                                 delete group;
 136                                 return false;
 137                         }
 138                         m_settings[name] = SettingsEntry(group);
 139                         break;
 140                 }
 141                 case SPE_MULTILINE:
 142                         m_settings[name] = SettingsEntry(getMultiline(is));
 143                         break;
 144                 }
 145         }
 146
 147         return end.empty();
 148 }
 149
 150
 151 void Settings::writeLines(std::ostream &os, u32 tab_depth) const
 152 {
 153         JMutexAutoLock lock(m_mutex);
 154
 155         for (std::map<std::string, SettingsEntry>::const_iterator
 156                         it = m_settings.begin();
 157                         it != m_settings.end(); ++it)
 158                 printEntry(os, it->first, it->second, tab_depth);
 159 }
 160
 161
 162 void Settings::printEntry(std::ostream &os, const std::string &name,
 163         const SettingsEntry &entry, u32 tab_depth)
 164 {
 165         for (u32 i = 0; i != tab_depth; i++)
 166                 os << "\t";
 167
 168         if (entry.is_group) {
 169                 os << name << " = {\n";
 170
 171                 entry.group->writeLines(os, tab_depth + 1);
 172
 173                 for (u32 i = 0; i != tab_depth; i++)
 174                         os << "\t";
 175                 os << "}\n";
 176         } else {
 177                 os << name << " = ";
 178
 179                 if (entry.value.find('\n') != std::string::npos)
 180                         os << "\"\"\"\n" << entry.value << "\n\"\"\"\n";
 181                 else
 182                         os << entry.value << "\n";
 183         }
 184 }
 185
 186
 187 bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
 188         const std::string &end, u32 tab_depth)
 189 {
 190         std::map<std::string, SettingsEntry>::const_iterator it;
 191         std::set<std::string> present_entries;
 192         std::string line, name, value;
 193         bool was_modified = false;
 194         bool end_found = false;
 195
 196         // Add any settings that exist in the config file with the current value
 197         // in the object if existing
 198         while (is.good() && !end_found) {
 199                 std::getline(is, line);
 200                 SettingsParseEvent event = parseConfigObject(line, end, name, value);
 201
 202                 switch (event) {
 203                 case SPE_END:
 204                         os << line << (is.eof() ? "" : "\n");
 205                         end_found = true;
 206                         break;
 207                 case SPE_MULTILINE:
 208                         value = getMultiline(is);
 209                         /* FALLTHROUGH */
 210                 case SPE_KVPAIR:
 211                         it = m_settings.find(name);
 212                         if (it != m_settings.end() &&
 213                                 (it->second.is_group || it->second.value != value)) {
 214                                 printEntry(os, name, it->second, tab_depth);
 215                                 was_modified = true;
 216                         } else {
 217                                 assert(it->second.group == NULL);
 218                                 os << line << "\n";
 219                                 if (event == SPE_MULTILINE)
 220                                         os << value << "\n\"\"\"\n";
 221                         }
 222                         present_entries.insert(name);
 223                         break;
 224                 case SPE_GROUP:
 225                         it = m_settings.find(name);
 226                         if (it != m_settings.end() && it->second.is_group) {
 227                                 os << line << "\n";
 228                                 assert(it->second.group != NULL);
 229                                 was_modified |= it->second.group->updateConfigObject(is, os,
 230                                         "}", tab_depth + 1);
 231                         } else {
 232                                 printEntry(os, name, it->second, tab_depth);
 233                                 was_modified = true;
 234                         }
 235                         present_entries.insert(name);
 236                         break;
 237                 default:
 238                         os << line << (is.eof() ? "" : "\n");
 239                         break;
 240                 }
 241         }
 242
 243         // Add any settings in the object that don't exist in the config file yet
 244         for (it = m_settings.begin(); it != m_settings.end(); ++it) {
 245                 if (present_entries.find(it->first) != present_entries.end())
 246                         continue;
 247
 248                 printEntry(os, it->first, it->second, tab_depth);
 249                 was_modified = true;
 250         }
 251
 252         return was_modified;
 253 }
 254
 255
 256 bool Settings::updateConfigFile(const char *filename)
 257 {
 258         JMutexAutoLock lock(m_mutex);
 259
 260         std::ifstream is(filename);
 261         std::ostringstream os(std::ios_base::binary);
 262
 263         bool was_modified = updateConfigObject(is, os, "");
 264         is.close();
 265
 266         if (!was_modified)
 267                 return true;
 268
 269         if (!fs::safeWriteToFile(filename, os.str())) {
 270                 errorstream << "Error writing configuration file: \""
 271                         << filename << "\"" << std::endl;
 272                 return false;
 273         }
 274
 275         return true;
 276 }
 277
 278
 279 bool Settings::parseCommandLine(int argc, char *argv[],
 280                 std::map<std::string, ValueSpec> &allowed_options)
 281 {
 282         int nonopt_index = 0;
 283         for (int i = 1; i < argc; i++) {
 284                 std::string arg_name = argv[i];
 285                 if (arg_name.substr(0, 2) != "--") {
 286                         // If option doesn't start with -, read it in as nonoptX
 287                         if (arg_name[0] != '-'){
 288                                 std::string name = "nonopt";
 289                                 name += itos(nonopt_index);
 290                                 set(name, arg_name);
 291                                 nonopt_index++;
 292                                 continue;
 293                         }
 294                         errorstream << "Invalid command-line parameter \""
 295                                         << arg_name << "\": --<option> expected." << std::endl;
 296                         return false;
 297                 }
 298
 299                 std::string name = arg_name.substr(2);
 300
 301                 std::map<std::string, ValueSpec>::iterator n;
 302                 n = allowed_options.find(name);
 303                 if (n == allowed_options.end()) {
 304                         errorstream << "Unknown command-line parameter \""
 305                                         << arg_name << "\"" << std::endl;
 306                         return false;
 307                 }
 308
 309                 ValueType type = n->second.type;
 310
 311                 std::string value = "";
 312
 313                 if (type == VALUETYPE_FLAG) {
 314                         value = "true";
 315                 } else {
 316                         if ((i + 1) >= argc) {
 317                                 errorstream << "Invalid command-line parameter \""
 318                                                 << name << "\": missing value" << std::endl;
 319                                 return false;
 320                         }
 321                         value = argv[++i];
 322                 }
 323
 324                 set(name, value);
 325         }
 326
 327         return true;
 328 }
 329
 330
 331
 332 /***********
 333  * Getters *
 334  ***********/
 335
 336
 337 const SettingsEntry &Settings::getEntry(const std::string &name) const
 338 {
 339         JMutexAutoLock lock(m_mutex);
 340
 341         std::map<std::string, SettingsEntry>::const_iterator n;
 342         if ((n = m_settings.find(name)) == m_settings.end()) {
 343                 if ((n = m_defaults.find(name)) == m_defaults.end())
 344                         throw SettingNotFoundException("Setting [" + name + "] not found.");
 345         }
 346         return n->second;
 347 }
 348
 349
 350 Settings *Settings::getGroup(const std::string &name) const
 351 {
 352         const SettingsEntry &entry = getEntry(name);
 353         if (!entry.is_group)
 354                 throw SettingNotFoundException("Setting [" + name + "] is not a group.");
 355         return entry.group;
 356 }
 357
 358
 359 std::string Settings::get(const std::string &name) const
 360 {
 361         const SettingsEntry &entry = getEntry(name);
 362         if (entry.is_group)
 363                 throw SettingNotFoundException("Setting [" + name + "] is a group.");
 364         return entry.value;
 365 }
 366
 367
 368 bool Settings::getBool(const std::string &name) const
 369 {
 370         return is_yes(get(name));
 371 }
 372
 373
 374 u16 Settings::getU16(const std::string &name) const
 375 {
 376         return stoi(get(name), 0, 65535);
 377 }
 378
 379
 380 s16 Settings::getS16(const std::string &name) const
 381 {
 382         return stoi(get(name), -32768, 32767);
 383 }
 384
 385
 386 s32 Settings::getS32(const std::string &name) const
 387 {
 388         return stoi(get(name));
 389 }
 390
 391
 392 float Settings::getFloat(const std::string &name) const
 393 {
 394         return stof(get(name));
 395 }
 396
 397
 398 u64 Settings::getU64(const std::string &name) const
 399 {
 400         u64 value = 0;
 401         std::string s = get(name);
 402         std::istringstream ss(s);
 403         ss >> value;
 404         return value;
 405 }
 406
 407
 408 v2f Settings::getV2F(const std::string &name) const
 409 {
 410         v2f value;
 411         Strfnd f(get(name));
 412         f.next("(");
 413         value.X = stof(f.next(","));
 414         value.Y = stof(f.next(")"));
 415         return value;
 416 }
 417
 418
 419 v3f Settings::getV3F(const std::string &name) const
 420 {
 421         v3f value;
 422         Strfnd f(get(name));
 423         f.next("(");
 424         value.X = stof(f.next(","));
 425         value.Y = stof(f.next(","));
 426         value.Z = stof(f.next(")"));
 427         return value;
 428 }
 429
 430
 431 u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
 432         u32 *flagmask) const
 433 {
 434         std::string val = get(name);
 435         return std::isdigit(val[0])
 436                 ? stoi(val)
 437                 : readFlagString(val, flagdesc, flagmask);
 438 }
 439
 440
 441 // N.B. if getStruct() is used to read a non-POD aggregate type,
 442 // the behavior is undefined.
 443 bool Settings::getStruct(const std::string &name, const std::string &format,
 444         void *out, size_t olen) const
 445 {
 446         std::string valstr;
 447
 448         try {
 449                 valstr = get(name);
 450         } catch (SettingNotFoundException &e) {
 451                 return false;
 452         }
 453
 454         if (!deSerializeStringToStruct(valstr, format, out, olen))
 455                 return false;
 456
 457         return true;
 458 }
 459
 460
 461 bool Settings::getNoiseParams(const std::string &name, NoiseParams &np) const
 462 {
 463         return getNoiseParamsFromGroup(name, np) || getNoiseParamsFromValue(name, np);
 464 }
 465
 466
 467 bool Settings::getNoiseParamsFromValue(const std::string &name,
 468         NoiseParams &np) const
 469 {
 470         std::string value;
 471
 472         if (!getNoEx(name, value))
 473                 return false;
 474
 475         Strfnd f(value);
 476
 477         np.offset   = stof(f.next(","));
 478         np.scale    = stof(f.next(","));
 479         f.next("(");
 480         np.spread.X = stof(f.next(","));
 481         np.spread.Y = stof(f.next(","));
 482         np.spread.Z = stof(f.next(")"));
 483         f.next(",");
 484         np.seed     = stoi(f.next(","));
 485         np.octaves  = stoi(f.next(","));
 486         np.persist  = stof(f.next(""));
 487
 488         return true;
 489 }
 490
 491
 492 bool Settings::getNoiseParamsFromGroup(const std::string &name,
 493         NoiseParams &np) const
 494 {
 495         Settings *group = NULL;
 496
 497         if (!getGroupNoEx(name, group))
 498                 return false;
 499
 500         group->getFloatNoEx("offset",      np.offset);
 501         group->getFloatNoEx("scale",       np.scale);
 502         group->getV3FNoEx("spread",        np.spread);
 503         group->getS32NoEx("seed",          np.seed);
 504         group->getU16NoEx("octaves",       np.octaves);
 505         group->getFloatNoEx("persistence", np.persist);
 506         group->getFloatNoEx("lacunarity",  np.lacunarity);
 507
 508         np.flags = 0;
 509         if (!group->getFlagStrNoEx("flags", np.flags, flagdesc_noiseparams))
 510                 np.flags = NOISE_FLAG_DEFAULTS;
 511
 512         return true;
 513 }
 514
 515
 516 bool Settings::exists(const std::string &name) const
 517 {
 518         JMutexAutoLock lock(m_mutex);
 519
 520         return (m_settings.find(name) != m_settings.end() ||
 521                 m_defaults.find(name) != m_defaults.end());
 522 }
 523
 524
 525 std::vector<std::string> Settings::getNames() const
 526 {
 527         std::vector<std::string> names;
 528         for (std::map<std::string, SettingsEntry>::const_iterator
 529                         i = m_settings.begin();
 530                         i != m_settings.end(); ++i) {
 531                 names.push_back(i->first);
 532         }
 533         return names;
 534 }
 535
 536
 537
 538 /***************************************
 539  * Getters that don't throw exceptions *
 540  ***************************************/
 541
 542 bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const
 543 {
 544         try {
 545                 val = getEntry(name);
 546                 return true;
 547         } catch (SettingNotFoundException &e) {
 548                 return false;
 549         }
 550 }
 551
 552
 553 bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const
 554 {
 555         try {
 556                 val = getGroup(name);
 557                 return true;
 558         } catch (SettingNotFoundException &e) {
 559                 return false;
 560         }
 561 }
 562
 563
 564 bool Settings::getNoEx(const std::string &name, std::string &val) const
 565 {
 566         try {
 567                 val = get(name);
 568                 return true;
 569         } catch (SettingNotFoundException &e) {
 570                 return false;
 571         }
 572 }
 573
 574
 575 bool Settings::getFlag(const std::string &name) const
 576 {
 577         try {
 578                 return getBool(name);
 579         } catch(SettingNotFoundException &e) {
 580                 return false;
 581         }
 582 }
 583
 584
 585 bool Settings::getFloatNoEx(const std::string &name, float &val) const
 586 {
 587         try {
 588                 val = getFloat(name);
 589                 return true;
 590         } catch (SettingNotFoundException &e) {
 591                 return false;
 592         }
 593 }
 594
 595
 596 bool Settings::getU16NoEx(const std::string &name, u16 &val) const
 597 {
 598         try {
 599                 val = getU16(name);
 600                 return true;
 601         } catch (SettingNotFoundException &e) {
 602                 return false;
 603         }
 604 }
 605
 606
 607 bool Settings::getS16NoEx(const std::string &name, s16 &val) const
 608 {
 609         try {
 610                 val = getS16(name);
 611                 return true;
 612         } catch (SettingNotFoundException &e) {
 613                 return false;
 614         }
 615 }
 616
 617
 618 bool Settings::getS32NoEx(const std::string &name, s32 &val) const
 619 {
 620         try {
 621                 val = getS32(name);
 622                 return true;
 623         } catch (SettingNotFoundException &e) {
 624                 return false;
 625         }
 626 }
 627
 628
 629 bool Settings::getU64NoEx(const std::string &name, u64 &val) const
 630 {
 631         try {
 632                 val = getU64(name);
 633                 return true;
 634         } catch (SettingNotFoundException &e) {
 635                 return false;
 636         }
 637 }
 638
 639
 640 bool Settings::getV2FNoEx(const std::string &name, v2f &val) const
 641 {
 642         try {
 643                 val = getV2F(name);
 644                 return true;
 645         } catch (SettingNotFoundException &e) {
 646                 return false;
 647         }
 648 }
 649
 650
 651 bool Settings::getV3FNoEx(const std::string &name, v3f &val) const
 652 {
 653         try {
 654                 val = getV3F(name);
 655                 return true;
 656         } catch (SettingNotFoundException &e) {
 657                 return false;
 658         }
 659 }
 660
 661
 662 // N.B. getFlagStrNoEx() does not set val, but merely modifies it.  Thus,
 663 // val must be initialized before using getFlagStrNoEx().  The intention of
 664 // this is to simplify modifying a flags field from a default value.
 665 bool Settings::getFlagStrNoEx(const std::string &name, u32 &val,
 666         FlagDesc *flagdesc) const
 667 {
 668         try {
 669                 u32 flags, flagmask;
 670
 671                 flags = getFlagStr(name, flagdesc, &flagmask);
 672
 673                 val &= ~flagmask;
 674                 val |=  flags;
 675
 676                 return true;
 677         } catch (SettingNotFoundException &e) {
 678                 return false;
 679         }
 680 }
 681
 682
 683 /***********
 684  * Setters *
 685  ***********/
 686
 687 void Settings::setEntry(const std::string &name, const void *data,
 688         bool set_group, bool set_default)
 689 {
 690         Settings *old_group = NULL;
 691
 692         {
 693                 JMutexAutoLock lock(m_mutex);
 694
 695                 SettingsEntry &entry = set_default ? m_defaults[name] : m_settings[name];
 696                 old_group = entry.group;
 697
 698                 entry.value    = set_group ? "" : *(const std::string *)data;
 699                 entry.group    = set_group ? *(Settings **)data : NULL;
 700                 entry.is_group = set_group;
 701         }
 702
 703         delete old_group;
 704 }
 705
 706
 707 void Settings::set(const std::string &name, const std::string &value)
 708 {
 709         setEntry(name, &value, false, false);
 710
 711         doCallbacks(name);
 712 }
 713
 714
 715 void Settings::setDefault(const std::string &name, const std::string &value)
 716 {
 717         setEntry(name, &value, false, true);
 718 }
 719
 720
 721 void Settings::setGroup(const std::string &name, Settings *group)
 722 {
 723         setEntry(name, &group, true, false);
 724 }
 725
 726
 727 void Settings::setGroupDefault(const std::string &name, Settings *group)
 728 {
 729         setEntry(name, &group, true, true);
 730 }
 731
 732
 733 void Settings::setBool(const std::string &name, bool value)
 734 {
 735         set(name, value ? "true" : "false");
 736 }
 737
 738
 739 void Settings::setS16(const std::string &name, s16 value)
 740 {
 741         set(name, itos(value));
 742 }
 743
 744
 745 void Settings::setU16(const std::string &name, u16 value)
 746 {
 747         set(name, itos(value));
 748 }
 749
 750
 751 void Settings::setS32(const std::string &name, s32 value)
 752 {
 753         set(name, itos(value));
 754 }
 755
 756
 757 void Settings::setU64(const std::string &name, u64 value)
 758 {
 759         std::ostringstream os;
 760         os << value;
 761         set(name, os.str());
 762 }
 763
 764
 765 void Settings::setFloat(const std::string &name, float value)
 766 {
 767         set(name, ftos(value));
 768 }
 769
 770
 771 void Settings::setV2F(const std::string &name, v2f value)
 772 {
 773         std::ostringstream os;
 774         os << "(" << value.X << "," << value.Y << ")";
 775         set(name, os.str());
 776 }
 777
 778
 779 void Settings::setV3F(const std::string &name, v3f value)
 780 {
 781         std::ostringstream os;
 782         os << "(" << value.X << "," << value.Y << "," << value.Z << ")";
 783         set(name, os.str());
 784 }
 785
 786
 787 void Settings::setFlagStr(const std::string &name, u32 flags,
 788         const FlagDesc *flagdesc, u32 flagmask)
 789 {
 790         set(name, writeFlagString(flags, flagdesc, flagmask));
 791 }
 792
 793
 794 bool Settings::setStruct(const std::string &name, const std::string &format,
 795         void *value)
 796 {
 797         std::string structstr;
 798         if (!serializeStructToString(&structstr, format, value))
 799                 return false;
 800
 801         set(name, structstr);
 802         return true;
 803 }
 804
 805
 806 void Settings::setNoiseParams(const std::string &name,
 807         const NoiseParams &np, bool set_default)
 808 {
 809         Settings *group = new Settings;
 810
 811         group->setFloat("offset",      np.offset);
 812         group->setFloat("scale",       np.scale);
 813         group->setV3F("spread",        np.spread);
 814         group->setS32("seed",          np.seed);
 815         group->setU16("octaves",       np.octaves);
 816         group->setFloat("persistence", np.persist);
 817         group->setFloat("lacunarity",  np.lacunarity);
 818         group->setFlagStr("flags",     np.flags, flagdesc_noiseparams, np.flags);
 819
 820         setEntry(name, &group, true, set_default);
 821 }
 822
 823
 824 bool Settings::remove(const std::string &name)
 825 {
 826         JMutexAutoLock lock(m_mutex);
 827
 828         delete m_settings[name].group;
 829         return m_settings.erase(name);
 830 }
 831
 832
 833 void Settings::clear()
 834 {
 835         JMutexAutoLock lock(m_mutex);
 836         clearNoLock();
 837 }
 838
 839
 840 void Settings::updateValue(const Settings &other, const std::string &name)
 841 {
 842         if (&other == this)
 843                 return;
 844
 845         JMutexAutoLock lock(m_mutex);
 846
 847         try {
 848                 std::string val = other.get(name);
 849
 850                 m_settings[name] = val;
 851         } catch (SettingNotFoundException &e) {
 852         }
 853 }
 854
 855
 856 void Settings::update(const Settings &other)
 857 {
 858         if (&other == this)
 859                 return;
 860
 861         JMutexAutoLock lock(m_mutex);
 862         JMutexAutoLock lock2(other.m_mutex);
 863
 864         updateNoLock(other);
 865 }
 866
 867
 868 SettingsParseEvent Settings::parseConfigObject(const std::string &line,
 869         const std::string &end, std::string &name, std::string &value)
 870 {
 871         std::string trimmed_line = trim(line);
 872
 873         if (trimmed_line.empty())
 874                 return SPE_NONE;
 875         if (trimmed_line[0] == '#')
 876                 return SPE_COMMENT;
 877         if (trimmed_line == end)
 878                 return SPE_END;
 879
 880         size_t pos = trimmed_line.find('=');
 881         if (pos == std::string::npos)
 882                 return SPE_INVALID;
 883
 884         name  = trim(trimmed_line.substr(0, pos));
 885         value = trim(trimmed_line.substr(pos + 1));
 886
 887         if (value == "{")
 888                 return SPE_GROUP;
 889         if (value == "\"\"\"")
 890                 return SPE_MULTILINE;
 891
 892         return SPE_KVPAIR;
 893 }
 894
 895
 896 void Settings::updateNoLock(const Settings &other)
 897 {
 898         m_settings.insert(other.m_settings.begin(), other.m_settings.end());
 899         m_defaults.insert(other.m_defaults.begin(), other.m_defaults.end());
 900 }
 901
 902
 903 void Settings::clearNoLock()
 904 {
 905         std::map<std::string, SettingsEntry>::const_iterator it;
 906         for (it = m_settings.begin(); it != m_settings.end(); ++it)
 907                 delete it->second.group;
 908         m_settings.clear();
 909
 910         for (it = m_defaults.begin(); it != m_defaults.end(); ++it)
 911                 delete it->second.group;
 912         m_defaults.clear();
 913 }
 914
 915
 916 void Settings::registerChangedCallback(std::string name,
 917         setting_changed_callback cbf)
 918 {
 919         m_callbacks[name].push_back(cbf);
 920 }
 921
 922
 923 void Settings::doCallbacks(const std::string name)
 924 {
 925         std::vector<setting_changed_callback> tempvector;
 926         {
 927                 JMutexAutoLock lock(m_mutex);
 928                 if (m_callbacks.find(name) != m_callbacks.end())
 929                 {
 930                         tempvector = m_callbacks[name];
 931                 }
 932         }
 933
 934         std::vector<setting_changed_callback>::iterator iter;
 935         for (iter = tempvector.begin(); iter != tempvector.end(); iter++)
 936         {
 937                 (*iter)(name);
 938         }
 939 }