egghelp/eggheads community

The ! character

2007-09-03T23:04:37-04:00

Thanks a lot

Statistics: Posted by vigilant — Mon Sep 03, 2007 11:04 pm

Re: The ! character

2007-09-03T20:35:51-04:00

What does it mean when you do {![command]}
And where can i read more about these?

Tcl Developer Site could be a good place to start.

Your example isn't complete as the logical NOT is used within a conditional statement.

Simply put (your example) means:

Code:

if {NOT [command]} {   then do something}

Statistics: Posted by Alchera — Mon Sep 03, 2007 8:35 pm

The ! character

2007-09-03T16:18:14-04:00

if you mean inside an if statement, ! means if it failed.

Code:

if {[command]} { # [command] returned 1 } else { [command] returned 0 }if {![command]} { # [command] returned 0 } else { [command returned 1 }

very rough example.

Statistics: Posted by r0t3n — Mon Sep 03, 2007 4:18 pm

The ! character

2007-09-03T15:57:50-04:00

Presumably it means someone is trying to exploit your bot by using tcl special chars in a command attempt..

Statistics: Posted by rosc2112 — Mon Sep 03, 2007 3:57 pm

The ! character

2007-09-03T14:15:04-04:00

What does it mean when you do {![command]}
And where can i read more about these?

Statistics: Posted by vigilant — Mon Sep 03, 2007 2:15 pm