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<?php |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2017 The s9e Authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Configurator; |
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use ArrayAccess; |
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use DOMDocument; |
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use Iterator; |
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use s9e\TextFormatter\Configurator\Collections\RulesGeneratorList; |
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use s9e\TextFormatter\Configurator\Collections\TagCollection; |
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use s9e\TextFormatter\Configurator\Helpers\TemplateInspector; |
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use s9e\TextFormatter\Configurator\RulesGenerators\Interfaces\BooleanRulesGenerator; |
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use s9e\TextFormatter\Configurator\RulesGenerators\Interfaces\TargetedRulesGenerator; |
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use s9e\TextFormatter\Configurator\Traits\CollectionProxy; |
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/** |
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* @method mixed add(mixed $value, null $void) |
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* @method mixed append(mixed $value) |
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* @method array asConfig() |
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* @method void clear() |
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* @method bool contains(mixed $value) |
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* @method integer count() |
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* @method mixed current() |
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* @method void delete(string $key) |
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* @method bool exists(string $key) |
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* @method mixed get(string $key) |
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* @method mixed indexOf(mixed $value) |
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* @method mixed insert(integer $offset, mixed $value) |
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* @method integer|string key() |
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* @method mixed next() |
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* @method integer normalizeKey(mixed $key) |
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* @method BooleanRulesGenerator|TargetedRulesGenerator normalizeValue(string|BooleanRulesGenerator|TargetedRulesGenerator $generator) |
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* @method bool offsetExists(string|integer $offset) |
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* @method mixed offsetGet(string|integer $offset) |
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* @method void offsetSet(mixed $offset, mixed $value) |
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* @method void offsetUnset(string|integer $offset) |
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* @method string onDuplicate(string|null $action) |
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* @method mixed prepend(mixed $value) |
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* @method integer remove(mixed $value) |
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* @method void rewind() |
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* @method mixed set(string $key, mixed $value) |
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* @method bool valid() |
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*/ |
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class RulesGenerator implements ArrayAccess, Iterator |
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{ |
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use CollectionProxy; |
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/** |
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* @var RulesGeneratorList Collection of objects |
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*/ |
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protected $collection; |
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/** |
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* Constructor |
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* |
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* Will load the default rule generators |
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*/ |
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public function __construct() |
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{ |
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$this->collection = new RulesGeneratorList; |
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$this->collection->append('AutoCloseIfVoid'); |
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$this->collection->append('AutoReopenFormattingElements'); |
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$this->collection->append('BlockElementsFosterFormattingElements'); |
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$this->collection->append('DisableAutoLineBreaksIfNewLinesArePreserved'); |
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$this->collection->append('EnforceContentModels'); |
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$this->collection->append('EnforceOptionalEndTags'); |
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$this->collection->append('IgnoreTagsInCode'); |
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$this->collection->append('IgnoreTextIfDisallowed'); |
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$this->collection->append('IgnoreWhitespaceAroundBlockElements'); |
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$this->collection->append('TrimFirstLineInCodeBlocks'); |
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} |
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/** |
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* Generate rules for given tag collection |
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* |
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* @param TagCollection $tags Tags collection |
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* @return array |
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*/ |
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public function getRules(TagCollection $tags) |
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{ |
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// Create a proxy for the parent markup so that we can determine which tags are allowed at |
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// the root of the text (IOW, with no parent) or even disabled altogether |
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$rootInspector = new TemplateInspector('<div><xsl:apply-templates/></div>'); |
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// Study the tags |
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$templateInspector = []; |
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foreach ($tags as $tagName => $tag) |
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{ |
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// Use the tag's template if applicable or XSLT's implicit default otherwise |
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$template = (isset($tag->template)) ? $tag->template : '<xsl:apply-templates/>'; |
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$templateInspector[$tagName] = new TemplateInspector($template); |
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} |
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// Generate a full set of rules |
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$rules = $this->generateRulesets($templateInspector, $rootInspector); |
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// Remove root rules that wouldn't be applied anyway |
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unset($rules['root']['autoClose']); |
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unset($rules['root']['autoReopen']); |
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unset($rules['root']['breakParagraph']); |
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unset($rules['root']['closeAncestor']); |
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unset($rules['root']['closeParent']); |
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unset($rules['root']['fosterParent']); |
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unset($rules['root']['ignoreSurroundingWhitespace']); |
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unset($rules['root']['isTransparent']); |
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unset($rules['root']['requireAncestor']); |
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unset($rules['root']['requireParent']); |
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return $rules; |
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} |
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/** |
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* Generate and return rules based on a set of TemplateInspector |
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* |
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* @param array $templateInspector Array of [tagName => TemplateInspector] |
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* @param TemplateInspector $rootInspector TemplateInspector for the root of the text |
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* @return array |
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*/ |
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protected function generateRulesets(array $templateInspector, TemplateInspector $rootInspector) |
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{ |
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$rules = [ |
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'root' => $this->generateRuleset($rootInspector, $templateInspector), |
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'tags' => [] |
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]; |
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foreach ($templateInspector as $tagName => $src) |
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{ |
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$rules['tags'][$tagName] = $this->generateRuleset($src, $templateInspector); |
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} |
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return $rules; |
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} |
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/** |
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* Generate a set of rules for a single TemplateInspector instance |
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* |
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* @param TemplateInspector $src Source of the rules |
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* @param array $targets Array of [tagName => TemplateInspector] |
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* @return array |
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*/ |
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protected function generateRuleset(TemplateInspector $src, array $targets) |
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{ |
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$rules = []; |
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foreach ($this->collection as $rulesGenerator) |
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{ |
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if ($rulesGenerator instanceof BooleanRulesGenerator) |
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{ |
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foreach ($rulesGenerator->generateBooleanRules($src) as $ruleName => $bool) |
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{ |
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$rules[$ruleName] = $bool; |
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} |
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} |
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if ($rulesGenerator instanceof TargetedRulesGenerator) |
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{ |
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foreach ($targets as $tagName => $trg) |
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{ |
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foreach ($rulesGenerator->generateTargetedRules($src, $trg) as $ruleName) |
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{ |
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$rules[$ruleName][] = $tagName; |
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} |
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} |
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} |
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} |
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return $rules; |
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} |
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} |
s9e /
TextFormatter
