AbstractConstraint.php

<?php 
/*
 * citeproc-php: AbstractConstraint.php
 * User: Sebastian Böttger <sebastian.boettger@thomascook.de>
 * created at 26.10.19, 14:12
 */
 
namespace Seboettg\CiteProc\Constraint;
 
use stdClass;
 
abstract class AbstractConstraint implements Constraint
{
 
    protected $match;
 
    protected $conditionVariables;
 
    abstract protected function matchForVariable($variable, $data);
 
    public function __construct($value, $match = "any")
    {
        $this->conditionVariables = explode(" ", $value);
        $this->match = $match;
    }
 
    public function validate($value, $citationNumber = null)
    {
        switch ($this->match) {
            case Constraint::MATCH_ALL:
                return $this->matchAll($value);
            case Constraint::MATCH_NONE:
                return !$this->matchAny($value); //no match for any value
            case Constraint::MATCH_ANY:
            default:
                return $this->matchAny($value);
        }
    }
 
    private function matchAny($value)
    {
        $conditionMatched = false;
        foreach ($this->conditionVariables as $variable) {
            $conditionMatched |= $this->matchForVariable($variable, $value);
        }
        return (bool)$conditionMatched;
    }
 
    private function matchAll($value)
    {
        $conditionMatched = true;
        foreach ($this->conditionVariables as $variable) {
            $conditionMatched &= $this->matchForVariable($variable, $value);
        }
        return (bool)$conditionMatched;
    }
}