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(* Test whether the keyword XXXX may be used as an identifier for:

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 * Program identifier

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 *

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 * The XXXX names in the following code are merely a placeholder.

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 * They will be replaced by several identifiers before actual testing

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 * of the compiler.

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 *)

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(* The identifiers that will replace the XXXX

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 * must be placed on a line starting with #

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 * All identifiers preceded by # are ignored!

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 * The identifier list must be placed inside an IEC 61131-3 comment.

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 *)

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(* This file is specific for identifiers identical to IL operators.

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 *  See the note following the identifier list

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 *)

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(*

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#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

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#SFC_qualifiers D DS L N P #R #S SD SL

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     NOTE: R and S are identical to IL operators!!

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#Task_initialisers PRIORITY SINGLE INTERVAL

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*)

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(* NOTE: The identifier as a variable test has some special cases.

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 *       Namely, when using IL operators as variable names.

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 *       Even though the syntax of the IL language would not result

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 *       in ambiguities in the above case, our parser does not currently

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 *       allow the use of variables (with names identical to IL

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 *       operators) within IL code.

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 *

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 *       The following test code must therefore consider two possibilities:

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 *        - if the identifier under test is an IL operator

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 *        - if the identifier under test is not an IL operator

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 *)

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PROGRAM XXXX

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VAR_INPUT

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  a_1 : BOOL;

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END_VAR

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  LD a_1

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END_PROGRAM

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CONFIGURATION config1

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 TASK fast(PRIORITY := 4);

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 PROGRAM P1 WITH fast:

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       XXXX(a_1 := TRUE);

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END_CONFIGURATION

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(* Checking whether the use of XXXX will confuse any other

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 * normal and correct IL or ST code.

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 *)

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{#include "basic_code.test" }

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