| 1 | <?php
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| 2 |
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| 3 | /**
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| 4 | * This class converts an XML string to a tree structure
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| 5 | * based on the "element" class that must be defined outside
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| 6 | * prior to including this file
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| 7 | */
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| 8 |
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| 9 | $ancStack = array (); // the stack with ancestral elements
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| 10 |
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| 11 | // START Three global functions needed for parsing, sorry guys
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| 12 | /** @todo document */
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| 13 | function wgXMLstartElement($parser, $name, $attrs) {
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| 14 | global $ancStack;
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| 15 |
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| 16 | $newElem = new element;
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| 17 | $newElem->name = $name;
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| 18 | $newElem->attrs = $attrs;
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| 19 |
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| 20 | array_push($ancStack, $newElem);
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| 21 | }
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| 22 |
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| 23 | /** @todo document */
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| 24 | function wgXMLendElement($parser, $name) {
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| 25 | global $ancStack, $rootElem;
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| 26 | // pop element off stack
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| 27 | $elem = array_pop($ancStack);
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| 28 | if (count($ancStack) == 0)
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| 29 | $rootElem = $elem;
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| 30 | else
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| 31 | // add it to its parent
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| 32 | array_push($ancStack[count($ancStack) - 1]->children, $elem);
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| 33 | }
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| 34 |
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| 35 | /** @todo document */
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| 36 | function wgXMLcharacterData($parser, $data) {
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| 37 | global $ancStack;
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| 38 | // add to parent if parent exists
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| 39 | if ($ancStack && trim ( $data ) != "") {
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| 40 | array_push($ancStack[count($ancStack) - 1]->children, $data);
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| 41 | }
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| 42 | }
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| 43 | // END Three global functions needed for parsing, sorry guys
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| 44 |
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| 45 | /**
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| 46 | * Here's the class that generates a nice tree
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| 47 | * @package MediaWiki
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| 48 | * @subpackage Experimental
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| 49 | */
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| 50 | class xml2php {
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| 51 |
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| 52 | /** @todo document */
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| 53 | function & scanFile($filename) {
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| 54 | global $ancStack, $rootElem;
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| 55 | $ancStack = array ();
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| 56 |
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| 57 | $xml_parser = xml_parser_create();
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| 58 | xml_set_element_handler($xml_parser, 'wgXMLstartElement', 'wgXMLendElement');
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| 59 | xml_set_character_data_handler($xml_parser, 'wgXMLcharacterData');
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| 60 | if (!($fp = fopen($filename, 'r'))) {
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| 61 | die('could not open XML input');
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| 62 | }
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| 63 | while ($data = fread($fp, 4096)) {
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| 64 | if (!xml_parse($xml_parser, $data, feof($fp))) {
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| 65 | die(sprintf("XML error: %s at line %d", xml_error_string(xml_get_error_code($xml_parser)), xml_get_current_line_number($xml_parser)));
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| 66 | }
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| 67 | }
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| 68 | xml_parser_free($xml_parser);
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| 69 |
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| 70 | // return the remaining root element we copied in the beginning
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| 71 | return $rootElem;
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| 72 | }
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| 73 |
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| 74 | /** @todo document */
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| 75 | function scanString($input) {
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| 76 | global $ancStack, $rootElem;
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| 77 | $ancStack = array ();
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| 78 |
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| 79 | $xml_parser = xml_parser_create();
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| 80 | xml_set_element_handler($xml_parser, 'wgXMLstartElement', 'wgXMLendElement');
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| 81 | xml_set_character_data_handler($xml_parser, 'wgXMLcharacterData');
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| 82 |
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| 83 | if ( is_array ( $input ) ) {
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| 84 | xml_parse($xml_parser, xml_articles_header() , false) ;
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| 85 | while ( $x = xml_shift ( $input ) ) {
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| 86 | xml_parse($xml_parser, $x, false) ;
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| 87 | }
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| 88 |
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| 89 | xml_parse($xml_parser, '</articles>', true) ;
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| 90 | } else {
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| 91 | xml_parse($xml_parser, xml_articles_header() , false) ;
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| 92 | if (!xml_parse($xml_parser, $input, false)) {
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| 93 | die(sprintf("XML error: %s at line %d", xml_error_string(xml_get_error_code($xml_parser)), xml_get_current_line_number($xml_parser)));
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| 94 | }
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| 95 | xml_parse($xml_parser, '</articles>', true) ;
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| 96 | }
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| 97 |
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| 98 | xml_parser_free($xml_parser);
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| 99 |
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| 100 | // return the remaining root element we copied in the beginning
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| 101 | return $rootElem;
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| 102 | }
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| 103 |
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| 104 | }
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| 105 |
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| 106 | ?>
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