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<?php
namespace League\Plates\Util;
use League\Plates\Exception\ComposeException;
function id($multi = false) {
if ($multi) {
return function(...$args) {
return $args;
};
} else {
return function($arg) {
return $arg;
}
/** simple utility that wraps php echo which allows for stubbing out the
echo func for testing */
function phpEcho() {
return function($v) {
echo $v;
/** stack a set of functions into each other and returns the stacked func */
function stack(array $funcs) {
return array_reduce(array_reverse($funcs), function($next, $func) {
return function(...$args) use ($next, $func) {
$args[] = $next;
return $func(...$args);
}, function() {
throw new ComposeException('No handler was able to return a result.');
});
function stackGroup(array $funcs) {
$end_next = null;
$funcs[] = function(...$args) use (&$end_next) {
return $end_next(...array_slice($args, 0, -1));
$next = stack($funcs);
return function(...$args) use ($next, &$end_next) {
$end_next = end($args);
return $next(...array_slice($args, 0, -1));
function joinPath(array $parts, $sep = DIRECTORY_SEPARATOR) {
return array_reduce($parts, function($acc, $part) use ($sep) {
if ($acc === null) {
return rtrim($part, $sep);
return $acc . $sep . ltrim($part, $sep);
}, null);
thephpleague /
plates
