"\'\[\]:/\#?]+' . // FQDN: foo.example.org
')' .
'(?::([a-z0-9]*))?' . // 3: Port
'((?:/+[^\s<>"\'\[\]/]+)*/+)?' .// 4: Directory path or path-info
'([^\s<>"\'\[\]]+)?' . // 5: File and query string
'#i',
$string, $array, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
// Tests: ftp://dfshodfs:80/dfsdfs
//var_dump(recursive_map('htmlspecialchars', $array));
// Shrink $array
$_port = 3;
$_path = 4;
foreach(array_keys($array) as $uri) {
unset($array[$uri][0]); // Matched string itself
$offset = $array[$uri][1][1]; // [1][1] = scheme's offset
foreach(array_keys($array[$uri]) as $part) {
// Remove offsets (with normalization)
$array[$uri][$part] =
strtolower(urldecode($array[$uri][$part][0]));
}
if (! isset($array[$uri][$_port])) $array[$uri][$_port] = '';
if (! isset($array[$uri][$_path])) $array[$uri][$_path] = '';
$array[$uri][$_path] = path_normalize($array[$uri][$_path]);
$array[$uri]['offset'] = $offset;
$array[$uri]['area'] = 0;
}
// Area elevation for '(especially external)link' intension
if (! empty($array)) {
// Anchor tags by preg_match_all()
// [OK] visit http://nasty.example.com/
// [NG] visit http://ng.example.com _not_ended_
// [??] Good site! test
$areas = array();
preg_match_all('#]*href[^>]*>.*?]*(>)#i',
$string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
//var_dump(recursive_map('htmlspecialchars', $areas));
foreach(array_keys($areas) as $area) {
$areas[$area] = array(
$areas[$area][0][1], // [0][1] = Area start ()
$areas[$area][1][1], // [1][1] = Area end ()
);
}
area_measure($areas, $array);
// Various Wiki syntax
// [text_or_uri>text_or_uri]
// [text_or_uri:text_or_uri]
// [text_or_uri|text_or_uri]
// [text_or_uri->text_or_uri]
// [text_or_uri text_or_uri] // MediaWiki
// MediaWiki: [http://nasty.example.com/ visit http://nasty.example.com/]
// phpBB's "BBCode" by preg_match_all()
// [url]http://nasty.example.com/[/url]
// [link]http://nasty.example.com/[/link]
// [url=http://nasty.example.com]visit http://nasty.example.com/[/url]
// [link http://nasty.example.com/]buy something[/link]
// ?? [url=][/url]
$areas = array();
preg_match_all('#\[(url|link)\b[^\]]*\].*?\[/\1\b[^\]]*(\])#i',
$string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
//var_dump(recursive_map('htmlspecialchars', $areas));
foreach(array_keys($areas) as $area) {
$areas[$area] = array(
$areas[$area][0][1], // [0][1] = Area start ([url])
$areas[$area][2][1], // [4][1] = Area end ([/url])
);
}
area_measure($areas, $array);
// Remove 'offset's for area_measure()
foreach(array_keys($array) as $key)
unset($array[$key]['offset']);
}
return $array;
}
// Path normalization
// example.org => example.org/
// example.org#hoge -> example.org/#hoge
// example.org/path/a/b/./c////./d -> example.org/path/a/b/c/d
// example.org/path/../../a/../back
function path_normalize($path = '')
{
if (! is_string($path) || $path == '') {
$path = '/';
} else {
$path = trim($path);
$last = ($path[strlen($path) - 1] == '/') ? '/' : '';
$array = explode('/', $path);
// Remove paddings
foreach(array_keys($array) as $key) {
if ($array[$key] == '' || $array[$key] == '.')
unset($array[$key]);
}
// Back-track
$tmp = array();
foreach($array as $value) {
if ($value == '..') {
array_pop($tmp);
} else {
array_push($tmp, $value);
}
}
$array = & $tmp;
if (empty($array)) {
$path = '/';
} else {
$path = '/' . implode('/', $array) . $last;
}
}
return $path;
}
// If in doubt, it's a little doubtful
function area_measure($areas, &$array, $belief = -1, $a_key = 'area', $o_key = 'offset')
{
if (! is_array($areas) || ! is_array($array)) return;
$areas_keys = array_keys($areas);
foreach(array_keys($array) as $u_index) {
$offset = isset($array[$u_index][$o_key]) ? intval($array[$u_index][$o_key]) : 0;
foreach($areas_keys as $a_index) {
if (isset($array[$u_index][$a_key])) {
$offset_s = intval($areas[$a_index][0]);
$offset_e = intval($areas[$a_index][1]);
if ($offset_s < $offset && $offset < $offset_e) {
$array[$u_index][$a_key] += $belief;
}
}
}
}
}
?>