_path = $sFile; $this->parseFromString( file_get_contents( $this->getPath() ) ); } function parseFromString( $sString ) { $sSource = preg_replace( "/>\s+<", $sString ); $oLevels = array(); $oParser = xml_parser_create( $this->encoding ); xml_parser_set_option( $oParser, XML_OPTION_CASE_FOLDING, 0 ); xml_parse_into_struct( $oParser, $sSource, $oElements ); xml_parser_free( $oParser ); # Situa los nodos en orden jerarquico con arrays # No conserva los tags de fin de elemento ( ) en el arbol de elementos for( $i = 0; $i < count( $oElements ); $i++ ) { # Si el elemento es del tipo cdata, subimos 1 nivel para que sea asignado al padre # correcto, y dejamos el tag a 'NULL' para que la funcion 'createElement' cree un 'cdata' if( $oElements[ $i ][ "type" ] == "cdata" ) { $oElements[ $i ][ "level" ]++; $oElements[ $i ][ "tag" ] = NULL; } if( $oElements[ $i ][ "type" ] != "close" ) { $nIndex = array_push( &$this->_elements, $this->createElement( $oElements[ $i ][ "tag" ], $oElements[ $i ][ "value" ] ) ) - 1; # Propiedades del nuevo elemento XML # valor, atributos, nodo padre, posicion dentro de los nodos hijos, documento raiz ... $this->_elements[ $nIndex ]->_root = &$this; $this->_elements[ $nIndex ]->attributes = ( array ) $oElements[ $i ][ "attributes" ]; $oLevels[ $oElements[ $i ][ "level" ] ] = &$this->_elements[ $nIndex ]; if( is_object( $oLevels[ $oElements[ $i ][ "level" ] - 1 ] ) ) $oLevels[ $oElements[ $i ][ "level" ] - 1 ]->appendChild( &$this->_elements[ $nIndex ] ); } else array_slice( $oElements, $i, 1 ); } $this->firstChild = &$this->_elements[ 0 ]; $this->_elements[ 0 ]->parentNode = &$this; } // ==================== Metodos GET ======================== function getPath() { return( $this->_path ); } # Devuelve un array con aquellos elementos cuyo tag coincida con # alguno de los elementos del array $oTagName function getElementsByTagName( $sTagName ) { for( $i = 0; $i < count( $this->_elements ); $i++ ) { if( $sTagName == "*" || eregi( "^($sTagName)$", $this->_elements[ $i ]->nodeName ) ) $oMatches[] = &$this->_elements[ $i ]; } return( $oMatches ); } # Devuelve el primer elemento cuyo identificativo sea igual a $sID function &getElementById( $sID ) { for( $i = 0; $i < count( $this->_elements ); $i++ ) { if( strcmp( $this->_elements[ $i ]->getAttribute( "id" ), $sID ) == 0 ) return( $this->_elements[ $i ] ); } } # Devuelve un array de elementos cuyos atributos '$sName' tengan # un valor identico al indicado en el segundo parametro '$sValue' function getElementsByAttribute( $sName, $sValue ) { for( $i = 0; $i < count( $this->_elements ); $i++ ) { if( $this->_elements[ $i ]->getAttribute( $sName ) == $sValue ) $oMatches[] = &$this->_elements[ $i ]; } return( $oMatches ); } // ==================== Otros metodos ====================== function isValid() { return( is_object( $this->firstChild ) ); } # Crea un nuevo elemento con el tag, valor y atributos especificados function &createElement( $sTagName = NULL, $sValue = NULL, $oAttributes = array() ) { $oElement = new DocumentElement( $sTagName, $sValue ); $oElement->attributes = $oAttributes; $oElement->_root = &$this; return( $oElement ); } function createCdata( $sString ) { return( $this->createElement( NULL, $sString ) ); } function toString( $bFormatted = false, $bIncludeHeader = true ) { if( $bIncludeHeader == true ) $sReturn = "version . "\" encoding=\"" . $this->encoding . "\" ?>\r\n\r\n"; return( $sReturn . $this->firstChild->toString( true, false, $bFormatted ? 0 : -1 ) ); } } class DocumentElement { // ==================== Atributos ========================== var $nodeName = NULL; var $nodeValue = NULL; var $attributes = array(); var $parentNode = NULL; var $firstChild = NULL; var $lastChild = NULL; var $nextSibling = NULL; var $previousSibling = NULL; // ==================== Metodos SET ======================== function DocumentElement( $sTagName, $sValue = NULL ) { $this->nodeName = $sTagName; $this->nodeValue = $sValue; } function setAttribute( $sKey, $sValue, $bOverWrite = true ) { if( $bOverWrite == true || !isset( $this->attributes[ $sKey ] ) ) $this->attributes[ $sKey ] = $sValue; } function removeAttribute( $sKey ) { unset( $this->attributes[ $sKey ] ); } // ==================== Metodos GET ======================== function getContent() { if( !is_null( $this->nodeValue ) || !$this->hasChildNodes() ) return( $this->nodeValue ); else return( $this ); } function getAttribute( $sName ) { return( $this->attributes[ $sName ] ); } # Busca todos los elementos a partir de 'this' cuyo tag sea igual al patron # especificado en 'sTagName' # Esta funcion realiza una busqueda recursiva a la que podemos definir el numero # maximo de niveles a buscar ( predeterminado -1: todos los niveles ) function getElementsByTagName( $sTagName, $nMaxLevels = -1, $nLevel = 0 ) { if( $nMaxLevels == -1 || $nLevel < $nMaxLevels ) { $oMatches = array(); $oChild = &$this->firstChild; while( $oChild !== NULL ) { if( $sTagName == "*" || eregi( "(" . $sTagName . ")", $oChild->nodeName ) ) array_push( $oMatches, &$oChild ); $oMatches = array_merge( &$oMatches, $oChild->getElementsByTagName( $sTagName, $nMaxLevels, $nLevel + 1 ) ); $oChild = &$oChild->nextSibling; } return( $oMatches ); } } function hasChildNodes() { return( $this->firstChild !== NULL ); } function hasAttribute( $sName ) { return( isset( $this->attributes[ $sName ] ) ); } // ==================== Otros metodos ====================== # Agrega un nuevo elemento hijo # Si es la primera vez que se le agrega un hijo, setearemos # los punteros 'firstChild' y 'lastChild' function &appendChild( &$oNewChild, $nPosition = DOM_INSERT_LAST ) { $oNewChild->unlink(); $oNewChild->parentNode = &$this; if( $this->firstChild === NULL ) { $this->firstChild = &$oNewChild; $this->lastChild = &$oNewChild; } else { switch( $nPosition ) { case DOM_INSERT_FIRST: $oNewChild->nextSibling = &$this->firstChild; $this->firstChild->previousSibling = &$oNewChild; $this->firstChild = &$oNewChild; break; case DOM_INSERT_LAST: $oNewChild->previousSibling = &$this->lastChild; $this->lastChild->nextSibling = &$oNewChild; $this->lastChild = &$oNewChild; break; } } return( $oNewChild ); } # Agrega un nuevo elemento hermano, en el mismo nivel que el actual # y a continuacion del mismo. Tiene en cuenta si el nuevo nodo tiene # tambien nodos en su mismo nivel, y los enlaza correctamente function &appendSibling( &$oNewSibling, $nPosition = DOM_INSERT_AFTER ) { $oNewSibling->unlink(); $oNewSibling->parentNode = &$this->parentNode; switch( $nPosition ) { case DOM_INSERT_AFTER: if( $this->nextSibling !== NULL ) { $oNewSibling->nextSibling = &$this->nextSibling; $this->nextSibling->previousSibling = &$oNewSibling; } else $this->parentNode->lastChild = &$oNewSibling; $oNewSibling->previousSibling = &$this; $this->nextSibling = &$oNewSibling; return( $oNewSibling ); case DOM_INSERT_BEFORE: if( $this->previousSibling !== NULL ) { $oNewSibling->previousSibling = &$this->previousSibling; $this->previousSibling->nextSibling = &$oNewSibling; } else $this->parentNode->firstChild = &$oNewSibling; $oNewSibling->nextSibling = &$this; $this->previousSibling = &$oNewSibling; return( $oNewSibling ); } } # Reemplaza un nodo function &replace( $oNode ) { $this->nodeName = $oNode->nodeName; $this->nodeValue = $oNode->nodeValue; $this->attributes = $oNode->attributes; unset( $this->firstChild, $this->lastChild ); if( $oNode->hasChildNodes() ) { $this->firstChild = &$oNode->firstChild; $this->lastChild = &$oNode->lastChild; $oNextSibling = &$oNode->firstChild; while( $oNextSibling !== NULL ) { $oNextSibling->parentNode = &$this; $oNextSibling = &$oNextSibling->nextSibling; } } return( $this ); } # Clona un nodo y todos sus subhijos ( estos ultimos solo en caso de que # el primer parametro sea 'true' function ©( $bCloneChildren = true ) { $oNewNode = $this->_root->createElement( $this->nodeName, $this->nodeValue ); $oNewNode->attributes = $this->attributes; $oNewNode->_root = &$this->_root; if( $bCloneChildren == true && $oChild = &$this->firstChild ) { while( $oChild !== NULL ) { $oNewChild = &$oChild->copy( $bCloneChildren ); $oNewNode->appendChild( &$oNewChild, DOM_INSERT_LAST ); $oChild = &$oChild->nextSibling; } } return( $oNewNode ); } # Desvincula el nodo del arbol de elementos function unlink() { if( $this->nextSibling !== NULL ) $this->nextSibling->previousSibling = &$this->previousSibling; else $this->parentNode->lastChild = &$this->previousSibling; if( $this->previousSibling !== NULL ) $this->previousSibling->nextSibling = &$this->nextSibling; else $this->parentNode->firstChild = &$this->nextSibling; unset( $this->parentNode, $this->nextSibling, $this->previousSibling ); } # Devuelve el codigo del nodo y sus hijos # Recibe un argumento opcional 'nTabs' utilizado internamente que indica # el numero de tabuladores asociados al nodo actual ( nivel ) function toString( $bIncludeChildren = true, $bOnlyChildren = false, $nTabs = -1 ) { # Cdata section. No tiene en cuenta atributos ni hijos if( $this->nodeName === NULL ) return( "nodeValue . "]]>" ); # Atributos del elemento foreach( $this->attributes as $sKey => $sValue ) $sAttributes .= " " . $sKey . "=\"" . $sValue . "\""; # Si tiene hijos almacenamos el codigo de estos en 'sChildren' # Ademas lo tabulamos mediante la variable 'nTabs' if( $bIncludeChildren == true && $this->hasChildNodes() ) { $oCurrentNode = &$this->firstChild; if( $nTabs != -1 && ( $this->firstChild->nextSibling !== NULL || $this->firstChild->hasChildNodes() ) ) $sTabCode = "\n" . str_repeat( "\t", $nTabs + 1 ); while( $oCurrentNode !== NULL ) { $sChildren .= $sTabCode . $oCurrentNode->toString( true, false, ( $nTabs == -1 ? $nTabs : $nTabs + 1 ) ); $oCurrentNode = &$oCurrentNode->nextSibling; } if( $nTabs != -1 && ( $this->firstChild->nextSibling !== NULL || $this->firstChild->hasChildNodes() ) ) $sChildren .= "\n" . str_repeat( "\t", $nTabs ); } if( $bOnlyChildren == true ) return( $sChildren ); # Finalmente devolvemos el codigo pertinente dependiendo de si el nodo # tiene hijos o no y si tiene un valor no nulo if( $this->nodeValue === NULL && !isset( $sChildren ) ) return( "<" . $this->nodeName . $sAttributes . " />" ); else return( "<" . $this->nodeName . $sAttributes . ">" . $this->nodeValue . $sChildren . "nodeName . ">" ); } } ?> :: CESCO :: Request Quote ::

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