private function validateSubSpec()
    {
        if ('!' != $this->currentSubSpec['operator'] && '?' != $this->currentSubSpec['operator']) { // skip left subTerm on operators ! and ?
            if (false === ($this->currentSubSpec['leftSubTerm'] instanceof CK\MARCspec\ComparisonStringInterface)) {
                $leftSubTermReference = new self(
                    $this->currentSubSpec['leftSubTerm'],
                    $this->record,
                    $this->cache
                );
                if (!$leftSubTerm = $leftSubTermReference->content) { // see 2.3.4 SubSpec validation
                    return $this->cache->validation($this->currentSubSpec, false);
                }
            } else {
                // is a CK\MARCspec\ComparisonStringInterface
                $leftSubTerm[] = $this->currentSubSpec['leftSubTerm']['comparable'];
            }
        }

        if (false === ($this->currentSubSpec['rightSubTerm'] instanceof CK\MARCspec\ComparisonStringInterface)) {
            $rightSubTermReference = new self(
                $this->currentSubSpec['rightSubTerm'],
                $this->record,
                $this->cache
            );
            $rightSubTerm = $rightSubTermReference->content; // content maybe an empty array
        } else {
            // is a CK\MARCspec\ComparisonStringInterface
            $rightSubTerm[] = $this->currentSubSpec['rightSubTerm']['comparable'];
        }
        $validation = false;

        switch ($this->currentSubSpec['operator']) {
        case '=':
            if (0 < count(array_intersect($leftSubTerm, $rightSubTerm))) {
                $validation = true;
            }
            break;

        case '!=':
            if (0 < count(array_diff($leftSubTerm, $rightSubTerm))) {
                $validation = true;
            }
            break;

        case '~':
            if (0 < count(
                array_uintersect(
                    $leftSubTerm,
                    $rightSubTerm,
                    function ($v1, $v2) {
                        if (strpos($v1, $v2) !== false) {
                            return 0;
                        }

                        return -1;
                    }
                )
            )
            ) {
                $validation = true;
            }
            break;

        case '!~':
            if (0 < count(
                array_uintersect(
                    $leftSubTerm,
                    $rightSubTerm,
                    function ($v1, $v2) {
                        if (strpos($v1, $v2) === false) {
                            return 0;
                        }

                        return -1;
                    }
                )
            )
            ) {
                $validation = true;
            }
            break;

        case '?':
            if ($rightSubTerm) {
                $validation = true;
            }
            break;

        case '!':
            if (!$rightSubTerm) {
                $validation = true;
            }
            break;
        }

        $this->cache->validation($this->currentSubSpec, $validation);

        return $validation;
    }
private function validateSubSpec()
    {
        if ('!' != $this->currentSubSpec['operator'] && '?' != $this->currentSubSpec['operator']) { // skip left subTerm on operators ! and ?
            if (false === ($this->currentSubSpec['leftSubTerm'] instanceof CK\MARCspec\ComparisonStringInterface)) {
                $leftSubTermReference = new self(
                    $this->currentSubSpec['leftSubTerm'],
                    $this->record,
                    $this->cache
                );
                if (!$leftSubTerm = $leftSubTermReference->content) { // see 2.3.4 SubSpec validation
                    return $this->cache->validation($this->currentSubSpec, false);
                }
            } else {
                // is a CK\MARCspec\ComparisonStringInterface
                $leftSubTerm[] = $this->currentSubSpec['leftSubTerm']['comparable'];
            }
        }

        if (false === ($this->currentSubSpec['rightSubTerm'] instanceof CK\MARCspec\ComparisonStringInterface)) {
            $rightSubTermReference = new self(
                $this->currentSubSpec['rightSubTerm'],
                $this->record,
                $this->cache
            );
            $rightSubTerm = $rightSubTermReference->content; // content maybe an empty array
        } else {
            // is a CK\MARCspec\ComparisonStringInterface
            $rightSubTerm[] = $this->currentSubSpec['rightSubTerm']['comparable'];
        }
        $validation = false;

        switch ($this->currentSubSpec['operator']) {
        case '=':
            if (0 < count(array_intersect($leftSubTerm, $rightSubTerm))) {
                $validation = true;
            }
            break;

        case '!=':
            if (0 < count(array_diff($leftSubTerm, $rightSubTerm))) {
                $validation = true;
            }
            break;

        case '~':
            if (0 < count(
                array_uintersect(
                    $leftSubTerm,
                    $rightSubTerm,
                    function ($v1, $v2) {
                        if (strpos($v1, $v2) !== false) {
                            return 0;
                        }

                        return -1;
                    }
                )
            )
            ) {
                $validation = true;
            }
            break;

        case '!~':
            if (0 < count(
                array_uintersect(
                    $leftSubTerm,
                    $rightSubTerm,
                    function ($v1, $v2) {
                        if (strpos($v1, $v2) === false) {
                            return 0;
                        }

                        return -1;
                    }
                )
            )
            ) {
                $validation = true;
            }
            break;

        case '?':
            if ($rightSubTerm) {
                $validation = true;
            }
            break;

        case '!':
            if (!$rightSubTerm) {
                $validation = true;
            }
            break;
        }

        $this->cache->validation($this->currentSubSpec, $validation);

        return $validation;
    }
private function validateSubSpec ( ) { if ( '!' != $ this -> currentSubSpec [ 'operator' ] && '?' != $ this -> currentSubSpec [ 'operator' ] ) { // skip left subTerm on operators ! and ? if ( false === ( $ this -> currentSubSpec [ 'leftSubTerm' ] instanceof CK \ MARCspec \ ComparisonStringInterface ) ) { $ leftSubTermReference = new self ( $ this -> currentSubSpec [ 'leftSubTerm' ] , $ this -> record , $ this -> cache ) ; if ( ! $ leftSubTerm = $ leftSubTermReference -> content ) { // see 2.3.4 SubSpec validation return $ this -> cache -> validation ( $ this -> currentSubSpec , false ) ; } } else { // is a CK\MARCspec\ComparisonStringInterface $ leftSubTerm [ ] = $ this -> currentSubSpec [ 'leftSubTerm' ] [ 'comparable' ] ; } } if ( false === ( $ this -> currentSubSpec [ 'rightSubTerm' ] instanceof CK \ MARCspec \ ComparisonStringInterface ) ) { $ rightSubTermReference = new self ( $ this -> currentSubSpec [ 'rightSubTerm' ] , $ this -> record , $ this -> cache ) ; $ rightSubTerm = $ rightSubTermReference -> content ; // content maybe an empty array } else { // is a CK\MARCspec\ComparisonStringInterface $ rightSubTerm [ ] = $ this -> currentSubSpec [ 'rightSubTerm' ] [ 'comparable' ] ; } $ validation = false ; switch ( $ this -> currentSubSpec [ 'operator' ] ) { case '=' : if ( 0 < count ( array_intersect ( $ leftSubTerm , $ rightSubTerm ) ) ) { $ validation = true ; } break ; case '!=' : if ( 0 < count ( array_diff ( $ leftSubTerm , $ rightSubTerm ) ) ) { $ validation = true ; } break ; case '~' : if ( 0 < count ( array_uintersect ( $ leftSubTerm , $ rightSubTerm , function ( $ v1 , $ v2 ) { if ( strpos ( $ v1 , $ v2 ) !== false ) { return 0 ; } return - 1 ; } ) ) ) { $ validation = true ; } break ; case '!~' : if ( 0 < count ( array_uintersect ( $ leftSubTerm , $ rightSubTerm , function ( $ v1 , $ v2 ) { if ( strpos ( $ v1 , $ v2 ) === false ) { return 0 ; } return - 1 ; } ) ) ) { $ validation = true ; } break ; case '?' : if ( $ rightSubTerm ) { $ validation = true ; } break ; case '!' : if ( ! $ rightSubTerm ) { $ validation = true ; } break ; } $ this -> cache -> validation ( $ this -> currentSubSpec , $ validation ) ; return $ validation ; }
Validates a subSpec.

@return bool True if subSpec is valid and false if not
Validates a subSpec .