Difference between ${THIS} and $THIS.

qWake · 22nd April 2004, 20:17

Yes, I'm an NSIS noob.

I have been searching the manual and the FAQ without success for the official word on the syntactic difference between using curly braces and not using them. A forum search on "{" does not return anything... Maybe I am missing an essential language reference.

My tests suggest that I need {} for my own !define'd constants and not for system-defined constants, but it would be good to know if there is more to it than just that or if I am missing the boat entirely.

Thanks!

kichik · 22nd April 2004, 20:35

$THIS is a variable refernce, ${THIS} is a define (preprocessor constant) reference.

qWake · 23rd April 2004, 02:08

Ah, thank you! Does the documentation mention it (and I just missed it?)

This NSIS is pretty cool. I figured out some of the script language and got a setup program running smoothly!

kichik · 23rd April 2004, 08:51

Documentation reference:

http://nsis.sourceforge.net/Docs/Chapter5.html#5.4
http://nsis.sourceforge.net/Docs/Chapter4.html#4.2
http://nsis.sourceforge.net/Docs/Chapter4.html#4.9.15
http://nsis.sourceforge.net/Docs/Chapter5.html#5.3

22nd April 2004, 20:17	#1
qWake Junior Member Join Date: Apr 2004 Posts: 2	Difference between ${THIS} and $THIS. Yes, I'm an NSIS noob. I have been searching the manual and the FAQ without success for the official word on the syntactic difference between using curly braces and not using them. A forum search on "{" does not return anything... Maybe I am missing an essential language reference. My tests suggest that I need {} for my own !define'd constants and not for system-defined constants, but it would be good to know if there is more to it than just that or if I am missing the boat entirely. Thanks!

22nd April 2004, 20:35	#2
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	$THIS is a variable refernce, ${THIS} is a define (preprocessor constant) reference. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

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23rd April 2004, 02:08	#3
qWake Junior Member Join Date: Apr 2004 Posts: 2	Ah, thank you! Does the documentation mention it (and I just missed it?) This NSIS is pretty cool. I figured out some of the script language and got a setup program running smoothly!

23rd April 2004, 08:51	#4
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Documentation reference: http://nsis.sourceforge.net/Docs/Chapter5.html#5.4 http://nsis.sourceforge.net/Docs/Chapter4.html#4.2 http://nsis.sourceforge.net/Docs/Chapter4.html#4.9.15 http://nsis.sourceforge.net/Docs/Chapter5.html#5.3 NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius