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BBCodeMonkey.php

Zuletzt modifiziert: 09.10.2024, 12:59 - Dateigröße: 14.41 KiB


 001  <?php
 002   
 003  /*
 004  * @package   s9e\TextFormatter
 005  * @copyright Copyright (c) 2010-2016 The s9e Authors
 006  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
 007  */
 008  namespace s9e\TextFormatter\Plugins\BBCodes\Configurator;
 009  use Exception;
 010  use InvalidArgumentException;
 011  use RuntimeException;
 012  use s9e\TextFormatter\Configurator;
 013  use s9e\TextFormatter\Configurator\Helpers\RegexpBuilder;
 014  use s9e\TextFormatter\Configurator\Items\Attribute;
 015  use s9e\TextFormatter\Configurator\Items\ProgrammableCallback;
 016  use s9e\TextFormatter\Configurator\Items\Tag;
 017  use s9e\TextFormatter\Configurator\Items\Template;
 018  class BBCodeMonkey
 019  {
 020      const REGEXP = '(.).*?(?<!\\\\)(?>\\\\\\\\)*+\\g{-1}[DSUisu]*';
 021      public $allowedFilters = array(
 022          'addslashes',
 023          'dechex',
 024          'intval',
 025          'json_encode',
 026          'ltrim',
 027          'mb_strtolower',
 028          'mb_strtoupper',
 029          'rawurlencode',
 030          'rtrim',
 031          'str_rot13',
 032          'stripslashes',
 033          'strrev',
 034          'strtolower',
 035          'strtotime',
 036          'strtoupper',
 037          'trim',
 038          'ucfirst',
 039          'ucwords',
 040          'urlencode'
 041      );
 042      protected $configurator;
 043      public $tokenRegexp = array(
 044          'COLOR'      => '[a-zA-Z]+|#[0-9a-fA-F]+',
 045          'EMAIL'      => '[^@]+@.+?',
 046          'FLOAT'      => '(?>0|-?[1-9]\\d*)(?>\\.\\d+)?(?>e[1-9]\\d*)?',
 047          'ID'         => '[-a-zA-Z0-9_]+',
 048          'IDENTIFIER' => '[-a-zA-Z0-9_]+',
 049          'INT'        => '0|-?[1-9]\\d*',
 050          'INTEGER'    => '0|-?[1-9]\\d*',
 051          'NUMBER'     => '\\d+',
 052          'RANGE'      => '\\d+',
 053          'SIMPLETEXT' => '[-a-zA-Z0-9+.,_ ]+',
 054          'UINT'       => '0|[1-9]\\d*'
 055      );
 056      public $unfilteredTokens = array(
 057          'ANYTHING',
 058          'TEXT'
 059      );
 060      public function __construct(Configurator $configurator)
 061      {
 062          $this->configurator = $configurator;
 063      }
 064      public function create($usage, $template)
 065      {
 066          $_this = $this;
 067          $config = $this->parse($usage);
 068          if (!($template instanceof Template))
 069              $template = new Template($template);
 070          $template->replaceTokens(
 071              '#\\{(?:[A-Z]+[A-Z_0-9]*|@[-\\w]+)\\}#',
 072              function ($m) use ($config, $_this)
 073              {
 074                  $tokenId = \substr($m[0], 1, -1);
 075                  if ($tokenId[0] === '@')
 076                      return array('expression', $tokenId);
 077                  if (isset($config['tokens'][$tokenId]))
 078                      return array('expression', '@' . $config['tokens'][$tokenId]);
 079                  if ($tokenId === $config['passthroughToken'])
 080                      return array('passthrough');
 081                  if ($_this->isFilter($tokenId))
 082                      throw new RuntimeException('Token {' . $tokenId . '} is ambiguous or undefined');
 083                  return array('expression', '$' . $tokenId);
 084              }
 085          );
 086          $return = array(
 087              'bbcode'     => $config['bbcode'],
 088              'bbcodeName' => $config['bbcodeName'],
 089              'tag'        => $config['tag']
 090          );
 091          $return['tag']->template = $template;
 092          return $return;
 093      }
 094      protected function parse($usage)
 095      {
 096          $tag    = new Tag;
 097          $bbcode = new BBCode;
 098          $config = array(
 099              'tag'              => $tag,
 100              'bbcode'           => $bbcode,
 101              'passthroughToken' => \null
 102          );
 103          $usage = \preg_replace_callback(
 104              '#(\\{(?>HASH)?MAP=)([^:]+:[^,;}]+(?>,[^:]+:[^,;}]+)*)(?=[;}])#',
 105              function ($m)
 106              {
 107                  return $m[1] . \base64_encode($m[2]);
 108              },
 109              $usage
 110          );
 111          $usage = \preg_replace_callback(
 112              '#(\\{(?:PARSE|REGEXP)=)(' . self::REGEXP . '(?:,' . self::REGEXP . ')*)#',
 113              function ($m)
 114              {
 115                  return $m[1] . \base64_encode($m[2]);
 116              },
 117              $usage
 118          );
 119          $regexp = '(^'
 120                  . '\\[(?<bbcodeName>\\S+?)'
 121                  . '(?<defaultAttribute>=\\S+?)?'
 122                  . '(?<attributes>(?:\\s+[^=]+=\\S+?)*?)?'
 123                  . '\\s*(?:/?\\]|\\]\\s*(?<content>.*?)\\s*(?<endTag>\\[/\\1]))$)i';
 124          if (!\preg_match($regexp, \trim($usage), $m))
 125              throw new InvalidArgumentException('Cannot interpret the BBCode definition');
 126          $config['bbcodeName'] = BBCode::normalizeName($m['bbcodeName']);
 127          $definitions = \preg_split('#\\s+#', \trim($m['attributes']), -1, \PREG_SPLIT_NO_EMPTY);
 128          if (!empty($m['defaultAttribute']))
 129              \array_unshift($definitions, $m['bbcodeName'] . $m['defaultAttribute']);
 130          if (!empty($m['content']))
 131          {
 132              $regexp = '#^\\{' . RegexpBuilder::fromList($this->unfilteredTokens) . '[0-9]*\\}$#D';
 133              if (\preg_match($regexp, $m['content']))
 134                  $config['passthroughToken'] = \substr($m['content'], 1, -1);
 135              else
 136              {
 137                  $definitions[] = 'content=' . $m['content'];
 138                  $bbcode->contentAttributes[] = 'content';
 139              }
 140          }
 141          $attributeDefinitions = array();
 142          foreach ($definitions as $definition)
 143          {
 144              $pos   = \strpos($definition, '=');
 145              $name  = \substr($definition, 0, $pos);
 146              $value = \preg_replace('(^"(.*?)")s', '$1', \substr($definition, 1 + $pos));
 147              $value = \preg_replace_callback(
 148                  '#(\\{(?>HASHMAP|MAP|PARSE|REGEXP)=)([A-Za-z0-9+/]+=*)#',
 149                  function ($m)
 150                  {
 151                      return $m[1] . \base64_decode($m[2]);
 152                  },
 153                  $value
 154              );
 155              if ($name[0] === '$')
 156              {
 157                  $optionName = \substr($name, 1);
 158                  $bbcode->$optionName = $this->convertValue($value);
 159              }
 160              elseif ($name[0] === '#')
 161              {
 162                  $ruleName = \substr($name, 1);
 163                  foreach (\explode(',', $value) as $value)
 164                      $tag->rules->$ruleName($this->convertValue($value));
 165              }
 166              else
 167              {
 168                  $attrName = \strtolower(\trim($name));
 169                  $attributeDefinitions[] = array($attrName, $value);
 170              }
 171          }
 172          $tokens = $this->addAttributes($attributeDefinitions, $bbcode, $tag);
 173          if (isset($tokens[$config['passthroughToken']]))
 174              $config['passthroughToken'] = \null;
 175          $config['tokens'] = \array_filter($tokens);
 176          return $config;
 177      }
 178      protected function addAttributes(array $definitions, BBCode $bbcode, Tag $tag)
 179      {
 180          $composites = array();
 181          $table = array();
 182          foreach ($definitions as $_e874cdc7)
 183          {
 184              list($attrName, $definition) = $_e874cdc7;
 185              if (!isset($bbcode->defaultAttribute))
 186                  $bbcode->defaultAttribute = $attrName;
 187              $tokens = self::parseTokens($definition);
 188              if (empty($tokens))
 189                  throw new RuntimeException('No valid tokens found in ' . $attrName . "'s definition " . $definition);
 190              if ($tokens[0]['content'] === $definition)
 191              {
 192                  $token = $tokens[0];
 193                  if ($token['type'] === 'PARSE')
 194                      foreach ($token['regexps'] as $regexp)
 195                          $tag->attributePreprocessors->add($attrName, $regexp);
 196                  elseif (isset($tag->attributes[$attrName]))
 197                      throw new RuntimeException("Attribute '" . $attrName . "' is declared twice");
 198                  else
 199                  {
 200                      if (!empty($token['options']['useContent']))
 201                          $bbcode->contentAttributes[] = $attrName;
 202                      unset($token['options']['useContent']);
 203                      $tag->attributes[$attrName] = $this->generateAttribute($token);
 204                      $tokenId = $token['id'];
 205                      $table[$tokenId] = (isset($table[$tokenId]))
 206                                       ? \false
 207                                       : $attrName;
 208                  }
 209              }
 210              else
 211                  $composites[] = array($attrName, $definition, $tokens);
 212          }
 213          foreach ($composites as $_2d84f0a0)
 214          {
 215              list($attrName, $definition, $tokens) = $_2d84f0a0;
 216              $regexp  = '/^';
 217              $lastPos = 0;
 218              $usedTokens = array();
 219              foreach ($tokens as $token)
 220              {
 221                  $tokenId   = $token['id'];
 222                  $tokenType = $token['type'];
 223                  if ($tokenType === 'PARSE')
 224                      throw new RuntimeException('{PARSE} tokens can only be used has the sole content of an attribute');
 225                  if (isset($usedTokens[$tokenId]))
 226                      throw new RuntimeException('Token {' . $tokenId . '} used multiple times in attribute ' . $attrName . "'s definition");
 227                  $usedTokens[$tokenId] = 1;
 228                  if (isset($table[$tokenId]))
 229                  {
 230                      $matchName = $table[$tokenId];
 231                      if ($matchName === \false)
 232                          throw new RuntimeException('Token {' . $tokenId . "} used in attribute '" . $attrName . "' is ambiguous");
 233                  }
 234                  else
 235                  {
 236                      $i = 0;
 237                      do
 238                      {
 239                          $matchName = $attrName . $i;
 240                          ++$i;
 241                      }
 242                      while (isset($tag->attributes[$matchName]));
 243                      $attribute = $tag->attributes->add($matchName);
 244                      if (!\in_array($tokenType, $this->unfilteredTokens, \true))
 245                      {
 246                          $filter = $this->configurator->attributeFilters->get('#' . \strtolower($tokenType));
 247                          $attribute->filterChain->append($filter);
 248                      }
 249                      $table[$tokenId] = $matchName;
 250                  }
 251                  $regexp .= \preg_quote(\substr($definition, $lastPos, $token['pos'] - $lastPos), '/');
 252                  $expr = (isset($this->tokenRegexp[$tokenType]))
 253                        ? $this->tokenRegexp[$tokenType]
 254                        : '.+?';
 255                  $regexp .= '(?<' . $matchName . '>' . $expr . ')';
 256                  $lastPos = $token['pos'] + \strlen($token['content']);
 257              }
 258              $regexp .= \preg_quote(\substr($definition, $lastPos), '/') . '$/D';
 259              $tag->attributePreprocessors->add($attrName, $regexp);
 260          }
 261          $newAttributes = array();
 262          foreach ($tag->attributePreprocessors as $attributePreprocessor)
 263              foreach ($attributePreprocessor->getAttributes() as $attrName => $regexp)
 264              {
 265                  if (isset($tag->attributes[$attrName]))
 266                      continue;
 267                  if (isset($newAttributes[$attrName])
 268                   && $newAttributes[$attrName] !== $regexp)
 269                      throw new RuntimeException("Ambiguous attribute '" . $attrName . "' created using different regexps needs to be explicitly defined");
 270                  $newAttributes[$attrName] = $regexp;
 271              }
 272          foreach ($newAttributes as $attrName => $regexp)
 273          {
 274              $filter = $this->configurator->attributeFilters->get('#regexp');
 275              $tag->attributes->add($attrName)->filterChain->append($filter)->setRegexp($regexp);
 276          }
 277          return $table;
 278      }
 279      protected function convertValue($value)
 280      {
 281          if ($value === 'true')
 282              return \true;
 283          if ($value === 'false')
 284              return \false;
 285          return $value;
 286      }
 287      protected static function parseTokens($definition)
 288      {
 289          $tokenTypes = array(
 290              'choice' => 'CHOICE[0-9]*=(?<choices>.+?)',
 291              'map'    => '(?:HASH)?MAP[0-9]*=(?<map>.+?)',
 292              'parse'  => 'PARSE=(?<regexps>' . self::REGEXP . '(?:,' . self::REGEXP . ')*)',
 293              'range'  => 'RAN(?:DOM|GE)[0-9]*=(?<min>-?[0-9]+),(?<max>-?[0-9]+)',
 294              'regexp' => 'REGEXP[0-9]*=(?<regexp>' . self::REGEXP . ')',
 295              'other'  => '(?<other>[A-Z_]+[0-9]*)'
 296          );
 297          \preg_match_all(
 298              '#\\{(' . \implode('|', $tokenTypes) . ')(?<options>(?:;[^;]*)*)\\}#',
 299              $definition,
 300              $matches,
 301              \PREG_SET_ORDER | \PREG_OFFSET_CAPTURE
 302          );
 303          $tokens = array();
 304          foreach ($matches as $m)
 305          {
 306              if (isset($m['other'][0])
 307               && \preg_match('#^(?:CHOICE|HASHMAP|MAP|REGEXP|PARSE|RANDOM|RANGE)#', $m['other'][0]))
 308                  throw new RuntimeException("Malformed token '" . $m['other'][0] . "'");
 309              $token = array(
 310                  'pos'     => $m[0][1],
 311                  'content' => $m[0][0],
 312                  'options' => array()
 313              );
 314              $head = $m[1][0];
 315              $pos  = \strpos($head, '=');
 316              if ($pos === \false)
 317                  $token['id'] = $head;
 318              else
 319              {
 320                  $token['id'] = \substr($head, 0, $pos);
 321                  foreach ($m as $k => $v)
 322                      if (!\is_numeric($k) && $k !== 'options' && $v[1] !== -1)
 323                          $token[$k] = $v[0];
 324              }
 325              $token['type'] = \rtrim($token['id'], '0123456789');
 326              $options = (isset($m['options'][0])) ? $m['options'][0] : '';
 327              foreach (\preg_split('#;+#', $options, -1, \PREG_SPLIT_NO_EMPTY) as $pair)
 328              {
 329                  $pos = \strpos($pair, '=');
 330                  if ($pos === \false)
 331                  {
 332                      $k = $pair;
 333                      $v = \true;
 334                  }
 335                  else
 336                  {
 337                      $k = \substr($pair, 0, $pos);
 338                      $v = \substr($pair, 1 + $pos);
 339                  }
 340                  $token['options'][$k] = $v;
 341              }
 342              if ($token['type'] === 'PARSE')
 343              {
 344                  \preg_match_all('#' . self::REGEXP . '(?:,|$)#', $token['regexps'], $m);
 345                  $regexps = array();
 346                  foreach ($m[0] as $regexp)
 347                      $regexps[] = \rtrim($regexp, ',');
 348                  $token['regexps'] = $regexps;
 349              }
 350              $tokens[] = $token;
 351          }
 352          return $tokens;
 353      }
 354      protected function generateAttribute(array $token)
 355      {
 356          $attribute = new Attribute;
 357          if (isset($token['options']['preFilter']))
 358          {
 359              $this->appendFilters($attribute, $token['options']['preFilter']);
 360              unset($token['options']['preFilter']);
 361          }
 362          if ($token['type'] === 'REGEXP')
 363          {
 364              $filter = $this->configurator->attributeFilters->get('#regexp');
 365              $attribute->filterChain->append($filter)->setRegexp($token['regexp']);
 366          }
 367          elseif ($token['type'] === 'RANGE')
 368          {
 369              $filter = $this->configurator->attributeFilters->get('#range');
 370              $attribute->filterChain->append($filter)->setRange($token['min'], $token['max']);
 371          }
 372          elseif ($token['type'] === 'RANDOM')
 373          {
 374              $attribute->generator = new ProgrammableCallback('mt_rand');
 375              $attribute->generator->addParameterByValue((int) $token['min']);
 376              $attribute->generator->addParameterByValue((int) $token['max']);
 377          }
 378          elseif ($token['type'] === 'CHOICE')
 379          {
 380              $filter = $this->configurator->attributeFilters->get('#choice');
 381              $attribute->filterChain->append($filter)->setValues(
 382                  \explode(',', $token['choices']),
 383                  !empty($token['options']['caseSensitive'])
 384              );
 385              unset($token['options']['caseSensitive']);
 386          }
 387          elseif ($token['type'] === 'HASHMAP' || $token['type'] === 'MAP')
 388          {
 389              $map = array();
 390              foreach (\explode(',', $token['map']) as $pair)
 391              {
 392                  $pos = \strpos($pair, ':');
 393                  if ($pos === \false)
 394                      throw new RuntimeException("Invalid map assignment '" . $pair . "'");
 395                  $map[\substr($pair, 0, $pos)] = \substr($pair, 1 + $pos);
 396              }
 397              if ($token['type'] === 'HASHMAP')
 398              {
 399                  $filter = $this->configurator->attributeFilters->get('#hashmap');
 400                  $attribute->filterChain->append($filter)->setMap(
 401                      $map,
 402                      !empty($token['options']['strict'])
 403                  );
 404              }
 405              else
 406              {
 407                  $filter = $this->configurator->attributeFilters->get('#map');
 408                  $attribute->filterChain->append($filter)->setMap(
 409                      $map,
 410                      !empty($token['options']['caseSensitive']),
 411                      !empty($token['options']['strict'])
 412                  );
 413              }
 414              unset($token['options']['caseSensitive']);
 415              unset($token['options']['strict']);
 416          }
 417          elseif (!\in_array($token['type'], $this->unfilteredTokens, \true))
 418          {
 419              $filter = $this->configurator->attributeFilters->get('#' . $token['type']);
 420              $attribute->filterChain->append($filter);
 421          }
 422          if (isset($token['options']['postFilter']))
 423          {
 424              $this->appendFilters($attribute, $token['options']['postFilter']);
 425              unset($token['options']['postFilter']);
 426          }
 427          if (isset($token['options']['required']))
 428              $token['options']['required'] = (bool) $token['options']['required'];
 429          elseif (isset($token['options']['optional']))
 430              $token['options']['required'] = !$token['options']['optional'];
 431          unset($token['options']['optional']);
 432          foreach ($token['options'] as $k => $v)
 433              $attribute->$k = $v;
 434          return $attribute;
 435      }
 436      protected function appendFilters(Attribute $attribute, $filters)
 437      {
 438          foreach (\preg_split('#\\s*,\\s*#', $filters) as $filterName)
 439          {
 440              if (\substr($filterName, 0, 1) !== '#'
 441               && !\in_array($filterName, $this->allowedFilters, \true))
 442                  throw new RuntimeException("Filter '" . $filterName . "' is not allowed");
 443              $filter = $this->configurator->attributeFilters->get($filterName);
 444              $attribute->filterChain->append($filter);
 445          }
 446      }
 447      public function isFilter($tokenId)
 448      {
 449          $filterName = \rtrim($tokenId, '0123456789');
 450          if (\in_array($filterName, $this->unfilteredTokens, \true))
 451              return \true;
 452          try
 453          {
 454              if ($this->configurator->attributeFilters->get('#' . $filterName))
 455                  return \true;
 456          }
 457          catch (Exception $e)
 458          {
 459              }
 460          return \false;
 461      }
 462  }

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Zuletzt modifiziert: 09.10.2024, 12:59 - Dateigröße: 14.41 KiB

BBCodeMonkey.php


 001  <?php
 002   
 003  /*
 004  * @package   s9e\TextFormatter
 005  * @copyright Copyright (c) 2010-2016 The s9e Authors
 006  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
 007  */
 008  namespace s9e\TextFormatter\Plugins\BBCodes\Configurator;
 009  use Exception;
 010  use InvalidArgumentException;
 011  use RuntimeException;
 012  use s9e\TextFormatter\Configurator;
 013  use s9e\TextFormatter\Configurator\Helpers\RegexpBuilder;
 014  use s9e\TextFormatter\Configurator\Items\Attribute;
 015  use s9e\TextFormatter\Configurator\Items\ProgrammableCallback;
 016  use s9e\TextFormatter\Configurator\Items\Tag;
 017  use s9e\TextFormatter\Configurator\Items\Template;
 018  class BBCodeMonkey
 019  {
 020      const REGEXP = '(.).*?(?<!\\\\)(?>\\\\\\\\)*+\\g{-1}[DSUisu]*';
 021      public $allowedFilters = array(
 022          'addslashes',
 023          'dechex',
 024          'intval',
 025          'json_encode',
 026          'ltrim',
 027          'mb_strtolower',
 028          'mb_strtoupper',
 029          'rawurlencode',
 030          'rtrim',
 031          'str_rot13',
 032          'stripslashes',
 033          'strrev',
 034          'strtolower',
 035          'strtotime',
 036          'strtoupper',
 037          'trim',
 038          'ucfirst',
 039          'ucwords',
 040          'urlencode'
 041      );
 042      protected $configurator;
 043      public $tokenRegexp = array(
 044          'COLOR'      => '[a-zA-Z]+|#[0-9a-fA-F]+',
 045          'EMAIL'      => '[^@]+@.+?',
 046          'FLOAT'      => '(?>0|-?[1-9]\\d*)(?>\\.\\d+)?(?>e[1-9]\\d*)?',
 047          'ID'         => '[-a-zA-Z0-9_]+',
 048          'IDENTIFIER' => '[-a-zA-Z0-9_]+',
 049          'INT'        => '0|-?[1-9]\\d*',
 050          'INTEGER'    => '0|-?[1-9]\\d*',
 051          'NUMBER'     => '\\d+',
 052          'RANGE'      => '\\d+',
 053          'SIMPLETEXT' => '[-a-zA-Z0-9+.,_ ]+',
 054          'UINT'       => '0|[1-9]\\d*'
 055      );
 056      public $unfilteredTokens = array(
 057          'ANYTHING',
 058          'TEXT'
 059      );
 060      public function __construct(Configurator $configurator)
 061      {
 062          $this->configurator = $configurator;
 063      }
 064      public function create($usage, $template)
 065      {
 066          $_this = $this;
 067          $config = $this->parse($usage);
 068          if (!($template instanceof Template))
 069              $template = new Template($template);
 070          $template->replaceTokens(
 071              '#\\{(?:[A-Z]+[A-Z_0-9]*|@[-\\w]+)\\}#',
 072              function ($m) use ($config, $_this)
 073              {
 074                  $tokenId = \substr($m[0], 1, -1);
 075                  if ($tokenId[0] === '@')
 076                      return array('expression', $tokenId);
 077                  if (isset($config['tokens'][$tokenId]))
 078                      return array('expression', '@' . $config['tokens'][$tokenId]);
 079                  if ($tokenId === $config['passthroughToken'])
 080                      return array('passthrough');
 081                  if ($_this->isFilter($tokenId))
 082                      throw new RuntimeException('Token {' . $tokenId . '} is ambiguous or undefined');
 083                  return array('expression', '$' . $tokenId);
 084              }
 085          );
 086          $return = array(
 087              'bbcode'     => $config['bbcode'],
 088              'bbcodeName' => $config['bbcodeName'],
 089              'tag'        => $config['tag']
 090          );
 091          $return['tag']->template = $template;
 092          return $return;
 093      }
 094      protected function parse($usage)
 095      {
 096          $tag    = new Tag;
 097          $bbcode = new BBCode;
 098          $config = array(
 099              'tag'              => $tag,
 100              'bbcode'           => $bbcode,
 101              'passthroughToken' => \null
 102          );
 103          $usage = \preg_replace_callback(
 104              '#(\\{(?>HASH)?MAP=)([^:]+:[^,;}]+(?>,[^:]+:[^,;}]+)*)(?=[;}])#',
 105              function ($m)
 106              {
 107                  return $m[1] . \base64_encode($m[2]);
 108              },
 109              $usage
 110          );
 111          $usage = \preg_replace_callback(
 112              '#(\\{(?:PARSE|REGEXP)=)(' . self::REGEXP . '(?:,' . self::REGEXP . ')*)#',
 113              function ($m)
 114              {
 115                  return $m[1] . \base64_encode($m[2]);
 116              },
 117              $usage
 118          );
 119          $regexp = '(^'
 120                  . '\\[(?<bbcodeName>\\S+?)'
 121                  . '(?<defaultAttribute>=\\S+?)?'
 122                  . '(?<attributes>(?:\\s+[^=]+=\\S+?)*?)?'
 123                  . '\\s*(?:/?\\]|\\]\\s*(?<content>.*?)\\s*(?<endTag>\\[/\\1]))$)i';
 124          if (!\preg_match($regexp, \trim($usage), $m))
 125              throw new InvalidArgumentException('Cannot interpret the BBCode definition');
 126          $config['bbcodeName'] = BBCode::normalizeName($m['bbcodeName']);
 127          $definitions = \preg_split('#\\s+#', \trim($m['attributes']), -1, \PREG_SPLIT_NO_EMPTY);
 128          if (!empty($m['defaultAttribute']))
 129              \array_unshift($definitions, $m['bbcodeName'] . $m['defaultAttribute']);
 130          if (!empty($m['content']))
 131          {
 132              $regexp = '#^\\{' . RegexpBuilder::fromList($this->unfilteredTokens) . '[0-9]*\\}$#D';
 133              if (\preg_match($regexp, $m['content']))
 134                  $config['passthroughToken'] = \substr($m['content'], 1, -1);
 135              else
 136              {
 137                  $definitions[] = 'content=' . $m['content'];
 138                  $bbcode->contentAttributes[] = 'content';
 139              }
 140          }
 141          $attributeDefinitions = array();
 142          foreach ($definitions as $definition)
 143          {
 144              $pos   = \strpos($definition, '=');
 145              $name  = \substr($definition, 0, $pos);
 146              $value = \preg_replace('(^"(.*?)")s', '$1', \substr($definition, 1 + $pos));
 147              $value = \preg_replace_callback(
 148                  '#(\\{(?>HASHMAP|MAP|PARSE|REGEXP)=)([A-Za-z0-9+/]+=*)#',
 149                  function ($m)
 150                  {
 151                      return $m[1] . \base64_decode($m[2]);
 152                  },
 153                  $value
 154              );
 155              if ($name[0] === '$')
 156              {
 157                  $optionName = \substr($name, 1);
 158                  $bbcode->$optionName = $this->convertValue($value);
 159              }
 160              elseif ($name[0] === '#')
 161              {
 162                  $ruleName = \substr($name, 1);
 163                  foreach (\explode(',', $value) as $value)
 164                      $tag->rules->$ruleName($this->convertValue($value));
 165              }
 166              else
 167              {
 168                  $attrName = \strtolower(\trim($name));
 169                  $attributeDefinitions[] = array($attrName, $value);
 170              }
 171          }
 172          $tokens = $this->addAttributes($attributeDefinitions, $bbcode, $tag);
 173          if (isset($tokens[$config['passthroughToken']]))
 174              $config['passthroughToken'] = \null;
 175          $config['tokens'] = \array_filter($tokens);
 176          return $config;
 177      }
 178      protected function addAttributes(array $definitions, BBCode $bbcode, Tag $tag)
 179      {
 180          $composites = array();
 181          $table = array();
 182          foreach ($definitions as $_e874cdc7)
 183          {
 184              list($attrName, $definition) = $_e874cdc7;
 185              if (!isset($bbcode->defaultAttribute))
 186                  $bbcode->defaultAttribute = $attrName;
 187              $tokens = self::parseTokens($definition);
 188              if (empty($tokens))
 189                  throw new RuntimeException('No valid tokens found in ' . $attrName . "'s definition " . $definition);
 190              if ($tokens[0]['content'] === $definition)
 191              {
 192                  $token = $tokens[0];
 193                  if ($token['type'] === 'PARSE')
 194                      foreach ($token['regexps'] as $regexp)
 195                          $tag->attributePreprocessors->add($attrName, $regexp);
 196                  elseif (isset($tag->attributes[$attrName]))
 197                      throw new RuntimeException("Attribute '" . $attrName . "' is declared twice");
 198                  else
 199                  {
 200                      if (!empty($token['options']['useContent']))
 201                          $bbcode->contentAttributes[] = $attrName;
 202                      unset($token['options']['useContent']);
 203                      $tag->attributes[$attrName] = $this->generateAttribute($token);
 204                      $tokenId = $token['id'];
 205                      $table[$tokenId] = (isset($table[$tokenId]))
 206                                       ? \false
 207                                       : $attrName;
 208                  }
 209              }
 210              else
 211                  $composites[] = array($attrName, $definition, $tokens);
 212          }
 213          foreach ($composites as $_2d84f0a0)
 214          {
 215              list($attrName, $definition, $tokens) = $_2d84f0a0;
 216              $regexp  = '/^';
 217              $lastPos = 0;
 218              $usedTokens = array();
 219              foreach ($tokens as $token)
 220              {
 221                  $tokenId   = $token['id'];
 222                  $tokenType = $token['type'];
 223                  if ($tokenType === 'PARSE')
 224                      throw new RuntimeException('{PARSE} tokens can only be used has the sole content of an attribute');
 225                  if (isset($usedTokens[$tokenId]))
 226                      throw new RuntimeException('Token {' . $tokenId . '} used multiple times in attribute ' . $attrName . "'s definition");
 227                  $usedTokens[$tokenId] = 1;
 228                  if (isset($table[$tokenId]))
 229                  {
 230                      $matchName = $table[$tokenId];
 231                      if ($matchName === \false)
 232                          throw new RuntimeException('Token {' . $tokenId . "} used in attribute '" . $attrName . "' is ambiguous");
 233                  }
 234                  else
 235                  {
 236                      $i = 0;
 237                      do
 238                      {
 239                          $matchName = $attrName . $i;
 240                          ++$i;
 241                      }
 242                      while (isset($tag->attributes[$matchName]));
 243                      $attribute = $tag->attributes->add($matchName);
 244                      if (!\in_array($tokenType, $this->unfilteredTokens, \true))
 245                      {
 246                          $filter = $this->configurator->attributeFilters->get('#' . \strtolower($tokenType));
 247                          $attribute->filterChain->append($filter);
 248                      }
 249                      $table[$tokenId] = $matchName;
 250                  }
 251                  $regexp .= \preg_quote(\substr($definition, $lastPos, $token['pos'] - $lastPos), '/');
 252                  $expr = (isset($this->tokenRegexp[$tokenType]))
 253                        ? $this->tokenRegexp[$tokenType]
 254                        : '.+?';
 255                  $regexp .= '(?<' . $matchName . '>' . $expr . ')';
 256                  $lastPos = $token['pos'] + \strlen($token['content']);
 257              }
 258              $regexp .= \preg_quote(\substr($definition, $lastPos), '/') . '$/D';
 259              $tag->attributePreprocessors->add($attrName, $regexp);
 260          }
 261          $newAttributes = array();
 262          foreach ($tag->attributePreprocessors as $attributePreprocessor)
 263              foreach ($attributePreprocessor->getAttributes() as $attrName => $regexp)
 264              {
 265                  if (isset($tag->attributes[$attrName]))
 266                      continue;
 267                  if (isset($newAttributes[$attrName])
 268                   && $newAttributes[$attrName] !== $regexp)
 269                      throw new RuntimeException("Ambiguous attribute '" . $attrName . "' created using different regexps needs to be explicitly defined");
 270                  $newAttributes[$attrName] = $regexp;
 271              }
 272          foreach ($newAttributes as $attrName => $regexp)
 273          {
 274              $filter = $this->configurator->attributeFilters->get('#regexp');
 275              $tag->attributes->add($attrName)->filterChain->append($filter)->setRegexp($regexp);
 276          }
 277          return $table;
 278      }
 279      protected function convertValue($value)
 280      {
 281          if ($value === 'true')
 282              return \true;
 283          if ($value === 'false')
 284              return \false;
 285          return $value;
 286      }
 287      protected static function parseTokens($definition)
 288      {
 289          $tokenTypes = array(
 290              'choice' => 'CHOICE[0-9]*=(?<choices>.+?)',
 291              'map'    => '(?:HASH)?MAP[0-9]*=(?<map>.+?)',
 292              'parse'  => 'PARSE=(?<regexps>' . self::REGEXP . '(?:,' . self::REGEXP . ')*)',
 293              'range'  => 'RAN(?:DOM|GE)[0-9]*=(?<min>-?[0-9]+),(?<max>-?[0-9]+)',
 294              'regexp' => 'REGEXP[0-9]*=(?<regexp>' . self::REGEXP . ')',
 295              'other'  => '(?<other>[A-Z_]+[0-9]*)'
 296          );
 297          \preg_match_all(
 298              '#\\{(' . \implode('|', $tokenTypes) . ')(?<options>(?:;[^;]*)*)\\}#',
 299              $definition,
 300              $matches,
 301              \PREG_SET_ORDER | \PREG_OFFSET_CAPTURE
 302          );
 303          $tokens = array();
 304          foreach ($matches as $m)
 305          {
 306              if (isset($m['other'][0])
 307               && \preg_match('#^(?:CHOICE|HASHMAP|MAP|REGEXP|PARSE|RANDOM|RANGE)#', $m['other'][0]))
 308                  throw new RuntimeException("Malformed token '" . $m['other'][0] . "'");
 309              $token = array(
 310                  'pos'     => $m[0][1],
 311                  'content' => $m[0][0],
 312                  'options' => array()
 313              );
 314              $head = $m[1][0];
 315              $pos  = \strpos($head, '=');
 316              if ($pos === \false)
 317                  $token['id'] = $head;
 318              else
 319              {
 320                  $token['id'] = \substr($head, 0, $pos);
 321                  foreach ($m as $k => $v)
 322                      if (!\is_numeric($k) && $k !== 'options' && $v[1] !== -1)
 323                          $token[$k] = $v[0];
 324              }
 325              $token['type'] = \rtrim($token['id'], '0123456789');
 326              $options = (isset($m['options'][0])) ? $m['options'][0] : '';
 327              foreach (\preg_split('#;+#', $options, -1, \PREG_SPLIT_NO_EMPTY) as $pair)
 328              {
 329                  $pos = \strpos($pair, '=');
 330                  if ($pos === \false)
 331                  {
 332                      $k = $pair;
 333                      $v = \true;
 334                  }
 335                  else
 336                  {
 337                      $k = \substr($pair, 0, $pos);
 338                      $v = \substr($pair, 1 + $pos);
 339                  }
 340                  $token['options'][$k] = $v;
 341              }
 342              if ($token['type'] === 'PARSE')
 343              {
 344                  \preg_match_all('#' . self::REGEXP . '(?:,|$)#', $token['regexps'], $m);
 345                  $regexps = array();
 346                  foreach ($m[0] as $regexp)
 347                      $regexps[] = \rtrim($regexp, ',');
 348                  $token['regexps'] = $regexps;
 349              }
 350              $tokens[] = $token;
 351          }
 352          return $tokens;
 353      }
 354      protected function generateAttribute(array $token)
 355      {
 356          $attribute = new Attribute;
 357          if (isset($token['options']['preFilter']))
 358          {
 359              $this->appendFilters($attribute, $token['options']['preFilter']);
 360              unset($token['options']['preFilter']);
 361          }
 362          if ($token['type'] === 'REGEXP')
 363          {
 364              $filter = $this->configurator->attributeFilters->get('#regexp');
 365              $attribute->filterChain->append($filter)->setRegexp($token['regexp']);
 366          }
 367          elseif ($token['type'] === 'RANGE')
 368          {
 369              $filter = $this->configurator->attributeFilters->get('#range');
 370              $attribute->filterChain->append($filter)->setRange($token['min'], $token['max']);
 371          }
 372          elseif ($token['type'] === 'RANDOM')
 373          {
 374              $attribute->generator = new ProgrammableCallback('mt_rand');
 375              $attribute->generator->addParameterByValue((int) $token['min']);
 376              $attribute->generator->addParameterByValue((int) $token['max']);
 377          }
 378          elseif ($token['type'] === 'CHOICE')
 379          {
 380              $filter = $this->configurator->attributeFilters->get('#choice');
 381              $attribute->filterChain->append($filter)->setValues(
 382                  \explode(',', $token['choices']),
 383                  !empty($token['options']['caseSensitive'])
 384              );
 385              unset($token['options']['caseSensitive']);
 386          }
 387          elseif ($token['type'] === 'HASHMAP' || $token['type'] === 'MAP')
 388          {
 389              $map = array();
 390              foreach (\explode(',', $token['map']) as $pair)
 391              {
 392                  $pos = \strpos($pair, ':');
 393                  if ($pos === \false)
 394                      throw new RuntimeException("Invalid map assignment '" . $pair . "'");
 395                  $map[\substr($pair, 0, $pos)] = \substr($pair, 1 + $pos);
 396              }
 397              if ($token['type'] === 'HASHMAP')
 398              {
 399                  $filter = $this->configurator->attributeFilters->get('#hashmap');
 400                  $attribute->filterChain->append($filter)->setMap(
 401                      $map,
 402                      !empty($token['options']['strict'])
 403                  );
 404              }
 405              else
 406              {
 407                  $filter = $this->configurator->attributeFilters->get('#map');
 408                  $attribute->filterChain->append($filter)->setMap(
 409                      $map,
 410                      !empty($token['options']['caseSensitive']),
 411                      !empty($token['options']['strict'])
 412                  );
 413              }
 414              unset($token['options']['caseSensitive']);
 415              unset($token['options']['strict']);
 416          }
 417          elseif (!\in_array($token['type'], $this->unfilteredTokens, \true))
 418          {
 419              $filter = $this->configurator->attributeFilters->get('#' . $token['type']);
 420              $attribute->filterChain->append($filter);
 421          }
 422          if (isset($token['options']['postFilter']))
 423          {
 424              $this->appendFilters($attribute, $token['options']['postFilter']);
 425              unset($token['options']['postFilter']);
 426          }
 427          if (isset($token['options']['required']))
 428              $token['options']['required'] = (bool) $token['options']['required'];
 429          elseif (isset($token['options']['optional']))
 430              $token['options']['required'] = !$token['options']['optional'];
 431          unset($token['options']['optional']);
 432          foreach ($token['options'] as $k => $v)
 433              $attribute->$k = $v;
 434          return $attribute;
 435      }
 436      protected function appendFilters(Attribute $attribute, $filters)
 437      {
 438          foreach (\preg_split('#\\s*,\\s*#', $filters) as $filterName)
 439          {
 440              if (\substr($filterName, 0, 1) !== '#'
 441               && !\in_array($filterName, $this->allowedFilters, \true))
 442                  throw new RuntimeException("Filter '" . $filterName . "' is not allowed");
 443              $filter = $this->configurator->attributeFilters->get($filterName);
 444              $attribute->filterChain->append($filter);
 445          }
 446      }
 447      public function isFilter($tokenId)
 448      {
 449          $filterName = \rtrim($tokenId, '0123456789');
 450          if (\in_array($filterName, $this->unfilteredTokens, \true))
 451              return \true;
 452          try
 453          {
 454              if ($this->configurator->attributeFilters->get('#' . $filterName))
 455                  return \true;
 456          }
 457          catch (Exception $e)
 458          {
 459              }
 460          return \false;
 461      }
 462  }

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