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::getMultiline(std::istream &is, size_t *num_lines)
  67 {
  68         size_t lines = 1;
  69         std::string value;
  70         std::string line;
  71
  72         while (is.good()) {
  73                 lines++;
  74                 std::getline(is, line);
  75                 if (line == "\"\"\"")
  76                         break;
  77                 value += line;
  78                 value.push_back('\n');
  79         }
  80
  81         size_t len = value.size();
  82         if (len)
  83                 value.erase(len - 1);
  84
  85         if (num_lines)
  86                 *num_lines = lines;
  87
  88         return value;
  89 }
  90
  91
  92 bool Settings::readConfigFile(const char *filename)
  93 {
  94         std::ifstream is(filename);
  95         if (!is.good())
  96                 return false;
  97
  98         return parseConfigLines(is, "");
  99 }
 100
 101
 102 bool Settings::parseConfigLines(std::istream &is, const std::string &end)
 103 {
 104         JMutexAutoLock lock(m_mutex);
 105
 106         std::string line, name, value;
 107
 108         while (is.good()) {
 109                 std::getline(is, line);
 110                 SettingsParseEvent event = parseConfigObject(line, end, name, value);
 111
 112                 switch (event) {
 113                 case SPE_NONE:
 114                 case SPE_INVALID:
 115                 case SPE_COMMENT:
 116                         break;
 117                 case SPE_KVPAIR:
 118                         m_settings[name] = SettingsEntry(value);
 119                         break;
 120                 case SPE_END:
 121                         return true;
 122                 case SPE_GROUP: {
 123                         Settings *group = new Settings;
 124                         if (!group->parseConfigLines(is, "}")) {
 125                                 delete group;
 126                                 return false;
 127                         }
 128                         m_settings[name] = SettingsEntry(group);
 129                         break;
 130                 }
 131                 case SPE_MULTILINE:
 132                         m_settings[name] = SettingsEntry(getMultiline(is));
 133                         break;
 134                 }
 135         }
 136
 137         return end.empty();
 138 }
 139
 140
 141 void Settings::writeLines(std::ostream &os, u32 tab_depth) const
 142 {
 143         JMutexAutoLock lock(m_mutex);
 144
 145         for (std::map<std::string, SettingsEntry>::const_iterator
 146                         it = m_settings.begin();
 147                         it != m_settings.end(); ++it)
 148                 printEntry(os, it->first, it->second, tab_depth);
 149 }
 150
 151
 152 void Settings::printEntry(std::ostream &os, const std::string &name,
 153         const SettingsEntry &entry, u32 tab_depth)
 154 {
 155         for (u32 i = 0; i != tab_depth; i++)
 156                 os << "\t";
 157
 158         if (entry.is_group) {
 159                 os << name << " = {\n";
 160
 161                 entry.group->writeLines(os, tab_depth + 1);
 162
 163                 for (u32 i = 0; i != tab_depth; i++)
 164                         os << "\t";
 165                 os << "}\n";
 166         } else {
 167                 os << name << " = ";
 168
 169                 if (entry.value.find('\n') != std::string::npos)
 170                         os << "\"\"\"\n" << entry.value << "\n\"\"\"\n";
 171                 else
 172                         os << entry.value << "\n";
 173         }
 174 }
 175
 176
 177 bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
 178         const std::string &end, u32 tab_depth)
 179 {
 180         std::map<std::string, SettingsEntry>::const_iterator it;
 181         std::set<std::string> present_entries;
 182         std::string line, name, value;
 183         bool was_modified = false;
 184         bool end_found = false;
 185
 186         // Add any settings that exist in the config file with the current value
 187         // in the object if existing
 188         while (is.good() && !end_found) {
 189                 std::getline(is, line);
 190                 SettingsParseEvent event = parseConfigObject(line, end, name, value);
 191
 192                 switch (event) {
 193                 case SPE_END:
 194                         os << line << (is.eof() ? "" : "\n");
 195                         end_found = true;
 196                         break;
 197                 case SPE_MULTILINE:
 198                         value = getMultiline(is);
 199                         /* FALLTHROUGH */
 200                 case SPE_KVPAIR:
 201                         it = m_settings.find(name);
 202                         if (it != m_settings.end() &&
 203                                 (it->second.is_group || it->second.value != value)) {
 204                                 printEntry(os, name, it->second, tab_depth);
 205                                 was_modified = true;
 206                         } else {
 207                                 assert(it->second.group == NULL);
 208                                 os << line << "\n";
 209                                 if (event == SPE_MULTILINE)
 210                                         os << value << "\n\"\"\"\n";
 211                         }
 212                         present_entries.insert(name);
 213                         break;
 214                 case SPE_GROUP:
 215                         it = m_settings.find(name);
 216                         if (it != m_settings.end() && it->second.is_group) {
 217                                 os << line << "\n";
 218                                 assert(it->second.group != NULL);
 219                                 was_modified |= it->second.group->updateConfigObject(is, os,
 220                                         "}", tab_depth + 1);
 221                         } else {
 222                                 printEntry(os, name, it->second, tab_depth);
 223                                 was_modified = true;
 224                         }
 225                         present_entries.insert(name);
 226                         break;
 227                 default:
 228                         os << line << (is.eof() ? "" : "\n");
 229                         break;
 230                 }
 231         }
 232
 233         // Add any settings in the object that don't exist in the config file yet
 234         for (it = m_settings.begin(); it != m_settings.end(); ++it) {
 235                 if (present_entries.find(it->first) != present_entries.end())
 236                         continue;
 237
 238                 printEntry(os, it->first, it->second, tab_depth);
 239                 was_modified = true;
 240         }
 241
 242         return was_modified;
 243 }
 244
 245
 246 bool Settings::updateConfigFile(const char *filename)
 247 {
 248         JMutexAutoLock lock(m_mutex);
 249
 250         std::ifstream is(filename);
 251         std::ostringstream os(std::ios_base::binary);
 252
 253         bool was_modified = updateConfigObject(is, os, "");
 254         is.close();
 255
 256         if (!was_modified)
 257                 return true;
 258
 259         if (!fs::safeWriteToFile(filename, os.str())) {
 260                 errorstream << "Error writing configuration file: \""
 261                         << filename << "\"" << std::endl;
 262                 return false;
 263         }
 264
 265         return true;
 266 }
 267
 268
 269 bool Settings::parseCommandLine(int argc, char *argv[],
 270                 std::map<std::string, ValueSpec> &allowed_options)
 271 {
 272         int nonopt_index = 0;
 273         for (int i = 1; i < argc; i++) {
 274                 std::string arg_name = argv[i];
 275                 if (arg_name.substr(0, 2) != "--") {
 276                         // If option doesn't start with -, read it in as nonoptX
 277                         if (arg_name[0] != '-'){
 278                                 std::string name = "nonopt";
 279                                 name += itos(nonopt_index);
 280                                 set(name, arg_name);
 281                                 nonopt_index++;
 282                                 continue;
 283                         }
 284                         errorstream << "Invalid command-line parameter \""
 285                                         << arg_name << "\": --<option> expected." << std::endl;
 286                         return false;
 287                 }
 288
 289                 std::string name = arg_name.substr(2);
 290
 291                 std::map<std::string, ValueSpec>::iterator n;
 292                 n = allowed_options.find(name);
 293                 if (n == allowed_options.end()) {
 294                         errorstream << "Unknown command-line parameter \""
 295                                         << arg_name << "\"" << std::endl;
 296                         return false;
 297                 }
 298
 299                 ValueType type = n->second.type;
 300
 301                 std::string value = "";
 302
 303                 if (type == VALUETYPE_FLAG) {
 304                         value = "true";
 305                 } else {
 306                         if ((i + 1) >= argc) {
 307                                 errorstream << "Invalid command-line parameter \""
 308                                                 << name << "\": missing value" << std::endl;
 309                                 return false;
 310                         }
 311                         value = argv[++i];
 312                 }
 313
 314                 set(name, value);
 315         }
 316
 317         return true;
 318 }
 319
 320
 321
 322 /***********
 323  * Getters *
 324  ***********/
 325
 326
 327 const SettingsEntry &Settings::getEntry(const std::string &name) const
 328 {
 329         JMutexAutoLock lock(m_mutex);
 330
 331         std::map<std::string, SettingsEntry>::const_iterator n;
 332         if ((n = m_settings.find(name)) == m_settings.end()) {
 333                 if ((n = m_defaults.find(name)) == m_defaults.end())
 334                         throw SettingNotFoundException("Setting [" + name + "] not found.");
 335         }
 336         return n->second;
 337 }
 338
 339
 340 Settings *Settings::getGroup(const std::string &name) const
 341 {
 342         const SettingsEntry &entry = getEntry(name);
 343         if (!entry.is_group)
 344                 throw SettingNotFoundException("Setting [" + name + "] is not a group.");
 345         return entry.group;
 346 }
 347
 348
 349 std::string Settings::get(const std::string &name) const
 350 {
 351         const SettingsEntry &entry = getEntry(name);
 352         if (entry.is_group)
 353                 throw SettingNotFoundException("Setting [" + name + "] is a group.");
 354         return entry.value;
 355 }
 356
 357
 358 bool Settings::getBool(const std::string &name) const
 359 {
 360         return is_yes(get(name));
 361 }
 362
 363
 364 u16 Settings::getU16(const std::string &name) const
 365 {
 366         return stoi(get(name), 0, 65535);
 367 }
 368
 369
 370 s16 Settings::getS16(const std::string &name) const
 371 {
 372         return stoi(get(name), -32768, 32767);
 373 }
 374
 375
 376 s32 Settings::getS32(const std::string &name) const
 377 {
 378         return stoi(get(name));
 379 }
 380
 381
 382 float Settings::getFloat(const std::string &name) const
 383 {
 384         return stof(get(name));
 385 }
 386
 387
 388 u64 Settings::getU64(const std::string &name) const
 389 {
 390         u64 value = 0;
 391         std::string s = get(name);
 392         std::istringstream ss(s);
 393         ss >> value;
 394         return value;
 395 }
 396
 397
 398 v2f Settings::getV2F(const std::string &name) const
 399 {
 400         v2f value;
 401         Strfnd f(get(name));
 402         f.next("(");
 403         value.X = stof(f.next(","));
 404         value.Y = stof(f.next(")"));
 405         return value;
 406 }
 407
 408
 409 v3f Settings::getV3F(const std::string &name) const
 410 {
 411         v3f value;
 412         Strfnd f(get(name));
 413         f.next("(");
 414         value.X = stof(f.next(","));
 415         value.Y = stof(f.next(","));
 416         value.Z = stof(f.next(")"));
 417         return value;
 418 }
 419
 420
 421 u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
 422         u32 *flagmask) const
 423 {
 424         std::string val = get(name);
 425         return std::isdigit(val[0])
 426                 ? stoi(val)
 427                 : readFlagString(val, flagdesc, flagmask);
 428 }
 429
 430
 431 // N.B. if getStruct() is used to read a non-POD aggregate type,
 432 // the behavior is undefined.
 433 bool Settings::getStruct(const std::string &name, const std::string &format,
 434         void *out, size_t olen) const
 435 {
 436         std::string valstr;
 437
 438         try {
 439                 valstr = get(name);
 440         } catch (SettingNotFoundException &e) {
 441                 return false;
 442         }
 443
 444         if (!deSerializeStringToStruct(valstr, format, out, olen))
 445                 return false;
 446
 447         return true;
 448 }
 449
 450
 451 bool Settings::getNoiseParams(const std::string &name, NoiseParams &np) const
 452 {
 453         return getNoiseParamsFromGroup(name, np) || getNoiseParamsFromValue(name, np);
 454 }
 455
 456
 457 bool Settings::getNoiseParamsFromValue(const std::string &name,
 458         NoiseParams &np) const
 459 {
 460         std::string value;
 461
 462         if (!getNoEx(name, value))
 463                 return false;
 464
 465         Strfnd f(value);
 466
 467         np.offset   = stof(f.next(","));
 468         np.scale    = stof(f.next(","));
 469         f.next("(");
 470         np.spread.X = stof(f.next(","));
 471         np.spread.Y = stof(f.next(","));
 472         np.spread.Z = stof(f.next(")"));
 473         f.next(",");
 474         np.seed     = stoi(f.next(","));
 475         np.octaves  = stoi(f.next(","));
 476         np.persist  = stof(f.next(","));
 477
 478         std::string optional_params = f.next("");
 479         if (optional_params != "")
 480                 np.lacunarity = stof(optional_params);
 481
 482         return true;
 483 }
 484
 485
 486 bool Settings::getNoiseParamsFromGroup(const std::string &name,
 487         NoiseParams &np) const
 488 {
 489         Settings *group = NULL;
 490
 491         if (!getGroupNoEx(name, group))
 492                 return false;
 493
 494         group->getFloatNoEx("offset",      np.offset);
 495         group->getFloatNoEx("scale",       np.scale);
 496         group->getV3FNoEx("spread",        np.spread);
 497         group->getS32NoEx("seed",          np.seed);
 498         group->getU16NoEx("octaves",       np.octaves);
 499         group->getFloatNoEx("persistence", np.persist);
 500         group->getFloatNoEx("lacunarity",  np.lacunarity);
 501
 502         np.flags = 0;
 503         if (!group->getFlagStrNoEx("flags", np.flags, flagdesc_noiseparams))
 504                 np.flags = NOISE_FLAG_DEFAULTS;
 505
 506         return true;
 507 }
 508
 509
 510 bool Settings::exists(const std::string &name) const
 511 {
 512         JMutexAutoLock lock(m_mutex);
 513
 514         return (m_settings.find(name) != m_settings.end() ||
 515                 m_defaults.find(name) != m_defaults.end());
 516 }
 517
 518
 519 std::vector<std::string> Settings::getNames() const
 520 {
 521         std::vector<std::string> names;
 522         for (std::map<std::string, SettingsEntry>::const_iterator
 523                         i = m_settings.begin();
 524                         i != m_settings.end(); ++i) {
 525                 names.push_back(i->first);
 526         }
 527         return names;
 528 }
 529
 530
 531
 532 /***************************************
 533  * Getters that don't throw exceptions *
 534  ***************************************/
 535
 536 bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const
 537 {
 538         try {
 539                 val = getEntry(name);
 540                 return true;
 541         } catch (SettingNotFoundException &e) {
 542                 return false;
 543         }
 544 }
 545
 546
 547 bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const
 548 {
 549         try {
 550                 val = getGroup(name);
 551                 return true;
 552         } catch (SettingNotFoundException &e) {
 553                 return false;
 554         }
 555 }
 556
 557
 558 bool Settings::getNoEx(const std::string &name, std::string &val) const
 559 {
 560         try {
 561                 val = get(name);
 562                 return true;
 563         } catch (SettingNotFoundException &e) {
 564                 return false;
 565         }
 566 }
 567
 568
 569 bool Settings::getFlag(const std::string &name) const
 570 {
 571         try {
 572                 return getBool(name);
 573         } catch(SettingNotFoundException &e) {
 574                 return false;
 575         }
 576 }
 577
 578
 579 bool Settings::getFloatNoEx(const std::string &name, float &val) const
 580 {
 581         try {
 582                 val = getFloat(name);
 583                 return true;
 584         } catch (SettingNotFoundException &e) {
 585                 return false;
 586         }
 587 }
 588
 589
 590 bool Settings::getU16NoEx(const std::string &name, u16 &val) const
 591 {
 592         try {
 593                 val = getU16(name);
 594                 return true;
 595         } catch (SettingNotFoundException &e) {
 596                 return false;
 597         }
 598 }
 599
 600
 601 bool Settings::getS16NoEx(const std::string &name, s16 &val) const
 602 {
 603         try {
 604                 val = getS16(name);
 605                 return true;
 606         } catch (SettingNotFoundException &e) {
 607                 return false;
 608         }
 609 }
 610
 611
 612 bool Settings::getS32NoEx(const std::string &name, s32 &val) const
 613 {
 614         try {
 615                 val = getS32(name);
 616                 return true;
 617         } catch (SettingNotFoundException &e) {
 618                 return false;
 619         }
 620 }
 621
 622
 623 bool Settings::getU64NoEx(const std::string &name, u64 &val) const
 624 {
 625         try {
 626                 val = getU64(name);
 627                 return true;
 628         } catch (SettingNotFoundException &e) {
 629                 return false;
 630         }
 631 }
 632
 633
 634 bool Settings::getV2FNoEx(const std::string &name, v2f &val) const
 635 {
 636         try {
 637                 val = getV2F(name);
 638                 return true;
 639         } catch (SettingNotFoundException &e) {
 640                 return false;
 641         }
 642 }
 643
 644
 645 bool Settings::getV3FNoEx(const std::string &name, v3f &val) const
 646 {
 647         try {
 648                 val = getV3F(name);
 649                 return true;
 650         } catch (SettingNotFoundException &e) {
 651                 return false;
 652         }
 653 }
 654
 655
 656 // N.B. getFlagStrNoEx() does not set val, but merely modifies it.  Thus,
 657 // val must be initialized before using getFlagStrNoEx().  The intention of
 658 // this is to simplify modifying a flags field from a default value.
 659 bool Settings::getFlagStrNoEx(const std::string &name, u32 &val,
 660         FlagDesc *flagdesc) const
 661 {
 662         try {
 663                 u32 flags, flagmask;
 664
 665                 flags = getFlagStr(name, flagdesc, &flagmask);
 666
 667                 val &= ~flagmask;
 668                 val |=  flags;
 669
 670                 return true;
 671         } catch (SettingNotFoundException &e) {
 672                 return false;
 673         }
 674 }
 675
 676
 677 /***********
 678  * Setters *
 679  ***********/
 680
 681 void Settings::setEntry(const std::string &name, const void *data,
 682         bool set_group, bool set_default)
 683 {
 684         Settings *old_group = NULL;
 685
 686         // Strip any potentially dangerous characters from the name (note the value
 687         // has no such restrictions)
 688         std::string n(name);
 689         for (const char *s = "\t\n\v\f\r\b =\""; *s; s++)
 690                 n.erase(std::remove(n.begin(), n.end(), *s), n.end());
 691
 692         {
 693                 JMutexAutoLock lock(m_mutex);
 694
 695                 SettingsEntry &entry = set_default ? m_defaults[n] : m_settings[n];
 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 }