handle empty selection in showSelectAndInput

localdump.sh

@@ -262,12 +262,18 @@
         local _lines
         typeset -i _lines; _lines=$( grep -c "." <<< "$_selection" )
     
-      if [ $_lines -eq "1" ]; then
+        case $_lines in
+            0)
+                color.echo error "ERROR no data for a further selection. Aborting."
+                echo
+                exit 1
+                ;;
+            1) 
                 echo "INFO: No interaction on a single choice. Using '$_selection'"
                 LASTINPUT="$_selection"
                 return 0
-      else
-  
+                ;;
+            *)
             echo "$_selection"
             color.print input "${_prompt} >"
             read -r LASTINPUT
@@ -275,7 +281,8 @@
                 echo "No input given. Aborting."
                 exit 1
             fi
-      fi
+            ;;
+        esac  
     }
 
     # ------------------------------------------------------------
@@ -358,7 +365,7 @@ EOH
     while [[ "$#" -gt 0 ]]; do case $1 in
         -h|--help)      showhelp; exit 0;;
         *) if grep "^-" <<< "$1" >/dev/null ; then
-                echo; echo "ERROR: Unknown parameter: $1"; echo; showhelp; exit 2
+                echo; color.echo error "ERROR: Unknown parameter: $1"; echo; showhelp; exit 2
             fi
             break;
             ;;