ExternalData: Allow DATA{} syntax to reference directories

Use a trailing slash to reference a directory.  Require that a list
of associated files be specified to select from within the directory.
One may simply use DATA{Dir/,REGEX:.*} to reference all files but
get a directory passed on the command line.

1 files changed, 1 insertions, 0 deletions

diff --git a/Tests/Module/ExternalData/CMakeLists.txt b/Tests/Module/ExternalData/CMakeLists.txt
index 5532610..c9a192b 100644
--- a/Tests/Module/ExternalData/CMakeLists.txt
+++ b/Tests/Module/ExternalData/CMakeLists.txt
@@ -24,6 +24,7 @@ ExternalData_Add_Test(Data1
     -D SeriesDn=DATA{SeriesDn-1.dat,:}
     -D Paired=DATA{PairedA.dat,PairedB.dat}
     -D Meta=DATA{MetaTop.dat,REGEX:Meta[ABC].dat}
+    -D Directory=DATA{Directory/,A.dat,REGEX:[BC].dat}
     -P ${CMAKE_CURRENT_SOURCE_DIR}/Data1Check.cmake
   )
 ExternalData_Add_Target(Data1)