Allow MATCH FILES before an active file has been defined.

Except when it has the active file as an input, MATCH FILES does
not require an active file, and produces an active file, so it
makes sense to allow it anywhere.

Thanks to John Darrington for pointing out the bug.

diff --git a/src/language/command.def b/src/language/command.def
index 442234d9bd9d6678fb38aab64cdd377a636a1051..de92c26aa7a28ac700b9313490100f2ce7392c0f 100644 (file)
--- a/src/language/command.def
+++ b/src/language/command.def
@@ -45,6 +45,7 @@ DEF_CMD (S_INITIAL | S_DATA, 0, "GET", cmd_get)
 DEF_CMD (S_INITIAL | S_DATA, 0, "GET DATA", cmd_get_data)
 DEF_CMD (S_INITIAL | S_DATA, 0, "IMPORT", cmd_import)
 DEF_CMD (S_INITIAL | S_DATA, 0, "INPUT PROGRAM", cmd_input_program)
+DEF_CMD (S_INITIAL | S_DATA, 0, "MATCH FILES", cmd_match_files)
 
 /* Transformations and utilities that may appear after active
    file definition or within INPUT PROGRAM. */
@@ -107,7 +108,6 @@ DEF_CMD (S_DATA, 0, "FILTER", cmd_filter)
 DEF_CMD (S_DATA, 0, "FLIP", cmd_flip)
 DEF_CMD (S_DATA, 0, "FREQUENCIES", cmd_frequencies)
 DEF_CMD (S_DATA, 0, "LIST", cmd_list)
-DEF_CMD (S_DATA, 0, "MATCH FILES", cmd_match_files)
 DEF_CMD (S_DATA, 0, "MEANS", cmd_means)
 DEF_CMD (S_DATA, 0, "MODIFY VARS", cmd_modify_vars)
 DEF_CMD (S_DATA, 0, "NPAR TESTS", cmd_npar_tests)