WP_oEmbed::_strip_newlines( string|false $html, object $data, string $url ): string|false

760	public function _strip_newlines( $html, $data, $url ) {761		if ( ! str_contains( $html, "\n" ) ) {762			return $html;763		}764 765		$count     = 1;766		$found     = array();767		$token     = '__PRE__';768		$search    = array( "\t", "\n", "\r", ' ' );769		$replace   = array( '__TAB__', '__NL__', '__CR__', '__SPACE__' );770		$tokenized = str_replace( $search, $replace, $html );771 772		preg_match_all( '#(<pre[^>]*>.+?</pre>)#i', $tokenized, $matches, PREG_SET_ORDER );773		foreach ( $matches as $i => $match ) {774			$tag_html  = str_replace( $replace, $search, $match[0] );775			$tag_token = $token . $i;776 777			$found[ $tag_token ] = $tag_html;778			$html                = str_replace( $tag_html, $tag_token, $html, $count );779		}780 781		$replaced = str_replace( $replace, $search, $html );782		$stripped = str_replace( array( "\r\n", "\n" ), '', $replaced );783		$pre      = array_values( $found );784		$tokens   = array_keys( $found );785 786		return str_replace( $tokens, $pre, $stripped );787	}