Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
(* Test whether the keyword XXXX may be used as an identifier for:
* CONFIGURATION identifier
*
* The XXXX names in the following code are merely a placeholder.
* They will be replaced by several identifiers before actual testing
* of the compiler.
*)
(* The identifiers that will replace the XXXX
* must be placed on a line starting with #
* All identifiers preceded by # are ignored!
* The identifier list must be placed inside an IEC 61131-3 comment.
*)
(*
#IL_operators ANDN CAL CALC CALCN CD CLK CU IN JMP JMPC JMPCN LD LDN ORN PT PV R R1 RET RETC RETCN S S1 ST STN XORN
#SFC_qualifiers D DS L N P #R #S SD SL
NOTE: R and S are identical to IL operators!!
#Task_initialisers PRIORITY SINGLE INTERVAL
*)
(* a helper program *)
PROGRAM bar000
VAR_INPUT
a_1 : BOOL;
END_VAR
VAR_OUTPUT
b_1 : BOOL;
END_VAR
a_1 := TRUE;
END_PROGRAM
(* using in program parameter *)
CONFIGURATION XXXX
TASK fast(PRIORITY := 4);
PROGRAM foo WITH fast:
bar000(a_1 := TRUE);
END_CONFIGURATION
(* Checking whether the use of XXXX will confuse any other
* normal and correct IL or ST code.
*)
{#include "basic_code.test" }