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function is not described

wp_embed_excerpt_more() WP 4.4.0

Filters the string in the 'more' link displayed after a trimmed excerpt.

Replaces '[...]' (appended to automatically generated excerpts) with an ellipsis and a "Continue reading" link in the embed template.

No Hooks.

Return

String. 'Continue reading' link prepended with an ellipsis.

Usage

wp_embed_excerpt_more( $more_string );
$more_string(string) (required)
Default 'more' string.

Code of wp embed excerpt more: wp-includes/embed.php VER 5.0.3

<?php
function wp_embed_excerpt_more( $more_string ) {
	if ( ! is_embed() ) {
		return $more_string;
	}

	$link = sprintf( '<a href="%1$s" class="wp-embed-more" target="_top">%2$s</a>',
		esc_url( get_permalink() ),
		/* translators: %s: Name of current post */
		sprintf( __( 'Continue reading %s' ), '<span class="screen-reader-text">' . get_the_title() . '</span>' )
	);
	return ' &hellip; ' . $link;
}