^@^! is allowed as a constant :)

Index > Compiler Internals > ^@^! is allowed as a constant :)

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MCD

Joined: 21 Aug 2004
Posts: 602
Location: Germany

MCD 23 Dec 2004, 15:56

I just noticed a funny think:

any symbols in Fasm can contain the ^ @ or ! character. This can give strange symbols!!! Man o man.

Code:

org 100h
mov ah,9
mov dx,^@^!
int 21h
int 20h
^@^! db "Hello funny World"

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23 Dec 2004, 15:56

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 23 Dec 2004, 18:18

it's allright, any character that isn't reserved can be part of name. otherwise people couldn't use names containing #255 for exmaple Smile

. By the way you can also use "%" when it isn't only char in name (then it is count of times or repeat). Otherwise, you couldn't do things like
%_ fix {
_% fix }
%comon fix common
@ExitProcess = 1
etc.

what's bad about name ^@^!?

(btw: ... noticed funny thinG, not think)

23 Dec 2004, 18:18

MCD

Joined: 21 Aug 2004
Posts: 602
Location: Germany

MCD 23 Dec 2004, 18:27

nothing.

but take a look at the xor operator "^"

23 Dec 2004, 18:27

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 23 Dec 2004, 18:32

if there will be some xor operator then this would be surely disabled.

btw, if you don't like it, just search fasm sources for list of reserved symbols and add them all (i am not sure with this but you can try). I am not sure but i thik list was just some string containing reserved chars, but maybe there has to be handler for each, only HE knows Wink

23 Dec 2004, 18:32

MCD

Joined: 21 Aug 2004
Posts: 602
Location: Germany

MCD 23 Dec 2004, 19:14

Sorry, I meant take a look at the thread "Compiler Internals > Logical xor operator for Fasm needed? With "^" character". What do you think? (Or have you already been there?)

23 Dec 2004, 19:14

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 23 Dec 2004, 20:32

yep, i voted for it, it shouldn't cause any harm, and you are right it may needed at some times where will old way distort readability of code.

Only problem could be with maniacs who used "^" character in names of their variables Wink

23 Dec 2004, 20:32

MCD

Joined: 21 Aug 2004
Posts: 602
Location: Germany

MCD 23 Dec 2004, 21:04

I normally don't use such characters in variables/constants, I just wanted to show something :p

23 Dec 2004, 21:04

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