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<?php |
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/** |
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* File containing the {@see Mailcode_Parser_Statement_Info_Pruner} class. |
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* |
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* @package Mailcode |
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* @subpackage Parser |
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* @see Mailcode_Parser_Statement_Info_Pruner |
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*/ |
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declare(strict_types=1); |
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namespace Mailcode; |
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/** |
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* Statement pruning utility: allows applying rules to |
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* an existing statement's tokens to retrieve only the |
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* relevant tokens. |
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* |
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* @package Mailcode |
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* @subpackage Parser |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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class Mailcode_Parser_Statement_Info_Pruner |
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{ |
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/** |
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* @var Mailcode_Parser_Statement_Info |
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*/ |
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private $info; |
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/** |
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* @var string[] |
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*/ |
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private $exclude = array(); |
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/** |
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* @var string[] |
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*/ |
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private $classNames = array(); |
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public function __construct(Mailcode_Parser_Statement_Info $info) |
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{ |
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$this->info = $info; |
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} |
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public function excludeToken(Mailcode_Parser_Statement_Tokenizer_Token $token) : Mailcode_Parser_Statement_Info_Pruner |
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{ |
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$id = $token->getID(); |
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if(!in_array($id, $this->exclude)) |
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{ |
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$this->exclude[] = $id; |
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} |
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return $this; |
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} |
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public function limitToStringLiterals() : Mailcode_Parser_Statement_Info_Pruner |
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{ |
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return $this->limitByClassName(Mailcode_Parser_Statement_Tokenizer_Token_StringLiteral::class); |
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} |
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public function limitToOperands() : Mailcode_Parser_Statement_Info_Pruner |
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{ |
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return $this->limitByClassName(Mailcode_Parser_Statement_Tokenizer_Token_Operand::class); |
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} |
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public function limitToNumbers() : Mailcode_Parser_Statement_Info_Pruner |
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{ |
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return $this->limitByClassName(Mailcode_Parser_Statement_Tokenizer_Token_Number::class); |
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} |
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public function limitByClassName(string $className) : Mailcode_Parser_Statement_Info_Pruner |
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{ |
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if(!in_array($className, $this->classNames)) |
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{ |
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$this->classNames[] = $className; |
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} |
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return $this; |
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} |
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/** |
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* Retrieves all tokens in the statement matching the |
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* current criteria. |
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* |
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* @return Mailcode_Parser_Statement_Tokenizer_Token[] |
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*/ |
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public function getTokens() : array |
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{ |
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$tokens = $this->info->getTokens(); |
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$keep = array(); |
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foreach($tokens as $token) |
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{ |
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if(in_array($token->getID(), $this->exclude)) |
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{ |
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continue; |
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} |
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$keep[] = $token; |
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} |
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return $keep; |
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} |
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} |
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Mistralys /
mailcode
