query.al

来自「美国CMU大学开发的操作系统健壮性评测软件」· AL 代码 · 共 29 行

# NOTE: Derived from ./blib/lib/URI/URL/_generic.pm.  Changes made here will be lost.
package URI::URL::_generic;

sub query {
    my $self = shift;
    my $old = $self->_elem('query', map { uri_escape($_, $URI::URL::reserved_no_form) } @_);
    if (defined(wantarray) && defined($old)) {
	if ($old =~ /%(?:26|2[bB]|3[dD])/) {  # contains escaped '=' '&' or '+'
	    my $mess;
	    for ($old) {
		$mess = "Query contains both '+' and '%2B'"
		  if /\+/ && /%2[bB]/;
		$mess = "Form query contains escaped '=' or '&'"
		  if /=/  && /%(?:3[dD]|26)/;
	    }
	    if ($mess) {
		Carp::croak("$mess (you must call equery)");
	    }
	}
	# Now it should be safe to unescape the string without loosing
	# information
	return uri_unescape($old);
    }
    undef;

}

1;