Added (premilinary) support for null columns.

Added support routines for C files generated by parsecsv utilities.

src/extras/Makefile

@@ -19,7 +19,7 @@ LIBS =
 INSTALL= @INSTALL@
 
 PROGS = mdb-dump
-OBJS = dump.o 
+OBJS = dump.o
 
 all: $(PROGS)
 

src/extras/mdbsupport.c

@@ -0,0 +1,22 @@
+/* support routines for code generated by the util programs */
+
+#include "util.h"
+#include <stdio.h>
+
+void dump_int (int i)
+{
+  fprintf (stdout, ">>%d<<\n", i);
+}
+
+void dump_long (long l)
+{
+  fprintf (stdout, ">>%ld<<\n", l);
+}
+
+void dump_string (char *s)
+{
+  if ((s == NULL) || (strlen (s) == 0))
+    fprintf (stdout, "(null)\n");
+  else
+    fprintf (stdout, ">>%s<<\n", s);
+}

src/extras/mdbsupport.h

@@ -0,0 +1,4 @@
+
+void dump_int (int i);
+void dump_long (long l);
+void dump_string (char *s);