function remove_dot_segments($path)
{
$result_segments = array();
while ($path) {
if (_startswith($path, '../')) {
$path = substr($path, 3);
} else {
if (_startswith($path, './')) {
$path = substr($path, 2);
} else {
if (_startswith($path, '/./')) {
$path = substr($path, 2);
} else {
if ($path == '/.') {
$path = '/';
} else {
if (_startswith($path, '/../')) {
$path = substr($path, 3);
if ($result_segments) {
array_pop($result_segments);
}
} else {
if ($path == '/..') {
$path = '/';
if ($result_segments) {
array_pop($result_segments);
}
} else {
if ($path == '..' || $path == '.') {
$path = '';
} else {
$i = 0;
if ($path[0] == '/') {
$i = 1;
}
$i = strpos($path, '/', $i);
if ($i === false) {
$i = strlen($path);
}
$result_segments[] = substr($path, 0, $i);
$path = substr($path, $i);
}
}
}
}
}
}
}
}
return implode('', $result_segments);
}
function Services_Yadis_XRI($xri)
{
if (!_startswith($xri, 'xri://')) {
$xri = 'xri://' . $xri;
}
return $xri;
}
private function _gen_usage()
{
$out = array();
$lines = explode("\n", trim($this->optspec));
$lines = array_reverse($lines);
$first_syn = True;
while (count($lines)) {
$l = array_pop($lines);
if ($l == '--') {
break;
}
array_push($out, sprintf("%s: %s\n", $first_syn ? 'usage' : ' or', $l));
$first_syn = False;
}
array_push($out, "\n");
$last_was_option = False;
$tty_width = _tty_width();
while (count($lines)) {
$l = array_pop($lines);
if (_startswith($l, ' ')) {
array_push($out, sprintf("%s%s\n", $last_was_option ? "\n" : '', ltrim($l)));
$last_was_option = False;
} elseif ($l) {
list($flags, $extra) = explode(' ', $l . ' ', 2);
$extra = trim($extra);
if (_endswith($flags, '=')) {
$flags = substr($flags, 0, -1);
$has_parm = 1;
} else {
$has_parm = 0;
}
$g = array();
$gr = preg_match('/\\[([^\\]]*)\\]$/', $extra, $g);
if ($gr) {
$defval = _intify($g[1]);
} else {
$defval = Null;
}
$flagl = explode(',', $flags);
$flagl_nice = array();
list($flag_main, $invert_main) = _remove_negative_kv($flagl[0], False);
$this->_defaults[$flag_main] = _invert($defval, $invert_main);
foreach ($flagl as $_f) {
list($f, $invert) = _remove_negative_kv($_f, 0);
$this->_aliases[$f] = array($flag_main, $invert_main xor $invert);
$this->_hasparms[$f] = $has_parm;
if ($f == '#') {
$this->_shortopts .= '0123456789';
array_push($flagl_nice, '-#');
} elseif (strlen($f) == 1) {
$this->_shortopts .= $f . ($has_parm ? ':' : '');
array_push($flagl_nice, '-' . $f);
} else {
$f_nice = preg_replace('/\\W/', '_', $f);
$this->_aliases[$f_nice] = array($flag_main, $invert_main xor $invert);
array_push($this->_longopts, $f . ($has_parm ? '=' : ''));
array_push($this->_longopts, 'no-' . $f);
array_push($flagl_nice, '--' . $_f);
}
}
$flags_nice = implode(', ', $flagl_nice);
if ($has_parm) {
$flags_nice .= ' ...';
}
$prefix = sprintf(' %-20s ', $flags_nice);
// wordwrap doesn't offer a feature similar to "subsequent_indent",
// so the text will wrap to the beginning of the line. We could
// implement this to make the usage string look nicer, but it
// would probably imply too much code for what it's worth.
$argtext = wordwrap($prefix . $extra, $tty_width);
array_push($out, $argtext . "\n");
$last_was_option = True;
} else {
array_push($out, "\n");
$last_was_option = False;
}
}
return rtrim(implode('', $out)) . "\n";
}