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filter is not described

wp_sprintf_l filter-hook . WP 2.5.0

Filters the translated delimiters used by wp_sprintf_l(). Placeholders (%s) are included to assist translators and then removed before the array of strings reaches the filter.

Please note: Ampersands and entities should be avoided here.

Usage

add_filter( 'wp_sprintf_l', 'filter_function_name_7553' );
function filter_function_name_7553( $delimiters ){
	// filter...

	return $delimiters;
}
$delimiters(array)
An array of translated delimiters.

Where the hook is called

wp_sprintf_l()
wp_sprintf_l
wp-includes/formatting.php 4503-4510
$l = apply_filters( 'wp_sprintf_l', array(
	/* translators: used to join items in a list with more than 2 items */
	'between'          => sprintf( __('%s, %s'), '', '' ),
	/* translators: used to join last two items in a list with more than 2 times */
	'between_last_two' => sprintf( __('%s, and %s'), '', '' ),
	/* translators: used to join items in a list with only 2 items */
	'between_only_two' => sprintf( __('%s and %s'), '', '' ),
) );

Where the hook is used (in WP core)

Does not used.