I didn't see any responses to this the other day when I asked so this
time I'll include source.. just cutting and pasting so hopefully nothing
gets clobbered..
When I parse this lil bit of raw data it parses properly. You can trace
it and see that it opens and closes the tags properly and that it writes
the $this->dom variable properly in the parsers close_tag () function.
However when you return the $this->dom value afterwards the variables
previous value is returned rather than the current value. Any ideas what
I am doing wrong? Thanks.
<? //index file
include_once ( 'common.inc' ); // does all my settings and includes.. in
this case includes the below classes
$raw = "<HTML><HEAD><TITLE>Howdy!</TITLE></HEAD>";
$raw .= "<BODY BGCOLOR='RED'>My dog is cute. My cat is cute.</BODY></HTML>";
$xml_parser = new xml_parser;
$document = $xml_parser->parse ( $raw );
print "<PRE>";
print_r ( $document );
print "</PRE>";
?>
<? // classes file..
class xml_parser
{
var $encoding;
var $parser;
function xml_parser ( $encoding = 'ISO-8859-1' )
{
$this->encoding = $encoding;
if ( $this->parser = xml_parser_create () ) {
xml_set_object ( $this->parser, $this );
xml_set_element_handler ( $this->parser,
"tag_open", "tag_close" );
xml_set_character_data_handler ( $this->parser,
"cdata");
}
}
function parse ( $data )
{
xml_parse ( $this->parser, $data );
}
function tag_open ( $parser, $tag, $attributes )
{
foreach ( $attributes as $key => $value ) {
$attrib_str .= ", $key=$value";
}
print "<UL>\n";
print "<LI>Open: $tag$attrib_str</LI>\n";
}
function cdata ( $parser, $cdata )
{
print "<LI>Data: $cdata</LI>\n";
}
function tag_close ( $parser, $tag )
{
print "<LI>Close: $tag</LI>\n";
print "</UL>\n";
}
}
class xml_parser
{
var $encoding;
var $parser;
var $opened_tags = array ();
var $dom;
function xml_parser ( $encoding = 'ISO-8859-1' )
{
$this->encoding = $encoding;
$this->create ();
$this->configure ();
}
function create ()
{
$this->parser = xml_parser_create ( $this->encoding );
}
function configure ()
{
xml_set_object ( $this->parser, $this );
xml_set_element_handler ( $this->parser, "open_tag",
"close_tag" );
xml_set_character_data_handler ( $this->parser, "cdata" );
}
function parse ( $data )
{
xml_parse ( $this->parser, $data );
return $this->dom;
}
function open_tag ( $parser, $tag_type, $attributes )
{
$tag = new xml_tag ( $tag_type, $attributes );
$this->opened_tags[] = $tag;
}
function close_tag ( $parser, $tag_type )
{
$tag = array_pop ( $this->opened_tags );
$mother_tag = array_pop ( $this->opened_tags );
if ( $mother_tag ) {
$mother_tag->add_tag ( $tag );
$this->opened_tags[] = $mother_tag;
} elseif ( $tag ) {
$this->dom = $tag;
function cdata ( $parser, $cdata )
{
$this->open_tag ( $parser, 'cdata', $cdata );
$this->close_tag ( $parser, 'cdata' );
}
}
class xml_tag
{
var $tag;
var $arguments;
var $contents = array ();
function xml_tag ( $tag, $arguments = array() )
{
// Name of the tag.
$this->tag = $tag;
// Array of argument/value pairs.
$this->arguments = $arguments;
}
function add_tag ( $tag )
{
$this->contents[] = $tag;
}
}
?>
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