otherwise lix may crash when e.g. nix search receives invalid regex. we now also give better error messages for regex errors during eval. fixes #803 Change-Id: Icc7c578ff488ba520efac5d898572ccf4486e9a8
otherwise lix may crash when e.g. nix search receives invalid regex. we now also give better error messages for regex errors during eval. fixes #803 Change-Id: Icc7c578ff488ba520efac5d898572ccf4486e9a8