Reserved Identifiers
99
NetLinx Programming Language Reference Guide
Reserved Identifiers
Compiler Directives
The compiler directives supported by NetLinx are described in the table below.
Compiler Directives
#DEFINE
This directive defines a symbol to be used only by
#IF_DEFINED
and
#IF_NOT_DEFINED
directives.
#DEFINE <symbol> [<constant expression>]
The name of the symbol must be unique among all other identifiers in the pro-
gram. The symbol can be defined anywhere in the program file but cannot be
used in any statement that appears before it is defined.
Example:
#DEFINE STRING_1 `Hello World`
#DEFINE STRING_2 "`Hello Letter `,65"
#DEFINE STRING_3 "65,66,67,68,69,70"
DEFINE_PROGRAM
PUSH[TP,1]
{
send_string 0,STRING_1 // This will send out `Hello
World`
send_string 0,STRING_2 // This will send out `Hello
Letter A`
send_string 0,STRING_3 // This will send out `ABCDEF`
}
#END_IF
This directive marks the end of an
#IF_DEFINED
or
#IF_NOT_DEFINED
code
block.
#ELSE
This directive specifies a counter condition; used optionally in conjunction with
#IF_DEFINED
and
#IF_NOT_DEFINED
.
#IF_DEFINED
This directive defines conditional compilation. The code following the
#IF_DEFINED
and before
#ELSE
(or before
#END_IF
, if
#ELSE
is not present)
is compiled only if a symbol is defined (see
#DEFINE
above). If a symbol is not
defined and the
#ELSE
directive is present, the code following
#ELSE
and
before
#END_IF
is compiled instead.
#IF_DEFINED symbol
// code block
#ELSE
// code block
#END_IF
#IF_NOT_DEFINED
This directive defines conditional compilation similar to
#IF_DEFINED
. The
code following the
#IF_NOT_DEFINED
and before
#ELSE
(or before
#END_IF
,
if
#ELSE
is not present) is compiled only if symbol is not defined (see
#DEFINE
above). If a symbol is defined and the
#ELSE
directive is present, the code fol-
lowing
#ELSE
and before
#END_IF
is compiled instead.
#IF_NOT_DEFINED symbol
// code block
#ELSE
// code block
#END_IF
Summary of Contents for NETLINX PROGRAMMING LANGUAGE
Page 15: ...Table of Contents xiii NetLinx Programming Language Reference Guide...
Page 16: ...xiv NetLinx Programming Language Reference Guide Table of Contents...
Page 18: ...Introduction 2 NetLinx Programming Language Reference Guide...
Page 76: ...Language Elements 60 NetLinx Programming Language Reference Guide...
Page 106: ...Combining Devices Levels and Channels 90 NetLinx Programming Language Reference Guide...
Page 112: ...Master To Master M2M 96 NetLinx Programming Language Reference Guide...
Page 182: ...Reserved Identifiers 166 NetLinx Programming Language Reference Guide...
Page 204: ...NetLinx UniCode Functions 188 NetLinx Programming Language Reference Guide...
Page 244: ...Appendix B Glossary 228 NetLinx Programming Language Reference Guide...
Page 245: ...Appendix B Glossary 229 NetLinx Programming Language Reference Guide...