only allow ten positional args

1 files changed, 2 insertions, 2 deletions

diff --git a/it.class b/it.class
index 7422d38..0733819 100644
--- a/it.class
+++ b/it.class
@@ -676,7 +676,7 @@ static function filter_keys($array, $keys, $p = array())
  * Construct shell command using it::shell_command, log it, execute it and return output as string.
  * @param $cmd shell command to be executed. String may contain:
  *   {keyword} quotes and inserts value from assoc array like ET()
- *   {0} .. {n} quotes and inserts positional arguments
+ *   {0} .. {9} quotes and inserts positional arguments
  *   {-opts} array of opts => {value,true,false,null}: it::exec('ls {-opts}', ['-opts' => ["-l" => true]]);
  * @param $cmd Format string with {keywords} a la ET()
  * @param $args varargs, contains key => val arrays or positionals for filling in cmd line. val=null expands to nothing
@@ -737,7 +737,7 @@ static function shell_command($cmd, ...$args)
 	# for escapeshellarg in it::_exec_quotevalue
 	$oldlocale = setlocale(LC_CTYPE, 0);
 	setlocale(LC_CTYPE, 'de_CH');
-	foreach (it::match('({(-?)([a-z0-9]\w*)})', $cmd, ['all' => true]) as $tags)
+	foreach (it::match('({(-?)([a-z]\w*|\d)})', $cmd, ['all' => true]) as $tags)
 	{
 		list($tag, $option, $key) = $tags;
 		$parts = [];