added LSL2 stored procedures

LSL2/STPROC/TOOL_VALID.txt

@@ -0,0 +1,39 @@
+compile subroutine tool_valid(ConvType, DataIo, Branch, ReturnedValue)
+begin condition
+pre:
+post:
+end condition
+
+$insert logical
+$insert quote_equ
+$insert msg_equates
+$insert wo_log_equ
+declare function msg, get_property, set_property, fieldcount
+declare subroutine extract_si_keys
+
+equ valid$         to 0    ;* successful
+equ invalid_msg$   to 1    ;* bad data       -   print error message window
+equ invalid_conv$  to 2    ;* bad conversion -          "         "
+equ invalid_nomsg$ to 3    ;* bad but do not print the error message window
+equ CrLf$          to char(13):char(10)
+
+ReturnedValue = DataIo       
+status() = Valid$              
+*
+begin case
+   case ConvType = 'ICONV'
+		AllTools = xlate( 'LISTBOX_CONFIG', 'ALLTOOLS', '', 'X' )
+		locate DataIo in AllTools using @vm setting Fpos else
+		   MsgInfo = ''
+		   MsgInfo<mtext$> = DataIo:' is not a valid tool.'
+		   MsgInfo<micon$> = 'H'
+		   Void = msg( '', MsgInfo )
+		   status() = invalid_nomsg$
+		end   
+   case ConvType = 'OCONV'
+      ReturnedValue = DataIo
+   case otherwise$
+      ReturnedValue = ''
+      status() = invalid_conv$
+end case
+return