Index: trunk/Ohana/src/opihi/lib.shell/string.c
===================================================================
--- trunk/Ohana/src/opihi/lib.shell/string.c	(revision 33662)
+++ trunk/Ohana/src/opihi/lib.shell/string.c	(revision 37049)
@@ -322,2 +322,31 @@
 }
 
+int set_list_varname (char *line, char *base, int N, int excelStyle) {
+
+  int i;
+    
+  // A-Z correspond to 0 - 25
+
+  if (excelStyle) {
+    float f = log(26.0);
+    float g = (N == 0) ? 0.0 : log(1.0*N);
+    int Ndigit = (int) (g / f) + 1;
+    if (Ndigit > 10) {
+      sprintf (line, "%s:ZZZZZZZZZZ", base);
+      return FALSE;
+    }
+    char name[12];
+    memset (name, 0, 12);
+    for (i = 0; i < Ndigit; i++) {
+      float Npow = Ndigit - i - 1;
+      float g = pow(26.0, Npow);
+      int V = (int) (N / g);
+      name[i] = (Npow == 0.0) ? 'A' + V : 'A' + V - 1;
+      N -= V * g;
+    }
+    sprintf (line, "%s:%s", base, name);
+  } else {
+    sprintf (line, "%s:%d", base, N);
+  }
+  return TRUE;
+}