Script engine issues on Pseudo-registers and Conditional statements

[SinaKarvandi]

Hey, @xmaple555!
If you find free time, can you check why we couldn't use underline ( _ ) in the pseudo-register. I don't have that much expertise in script engine code, you probably know it better than me.

Generally, if I change a pseudo-register (let's say, $tag to $event_tag and generate it by using the Python script), then after compiling HyperDbg, the following expression gives an invalid syntax error.

HyperDbg> ? printf("test core: %x", $event_tag);
this command should not be used while you're in VMI-Mode or not in debugger-mode, the results that you see is a simulated result for TESTING script-engine and is not based on the status of your system. You can use this command, ONLY in debugger-mode

test expression : printf("test core: %x", $event_tag);
Line 0:
printf("test core: %x", $event_tag);
                        ^
Syntax Error: Invalid Syntax

Other than that, a script like this gives error and I couldn't figure it out why.

? if ( @rcx == 0xffffc105a50f00a8 || @rdx == 0xffffc105a50f00a8 || @rsp == 1 ) {
	printf("Hit"); 
}

or the above script in other forms:

!epthook nt!ExAllocatePoolWithTag script {

if ( @rcx == 0xffffc105a50f00a8 || @rdx == 0xffffc105a50f00a8 || @r8 == 0xffffc105a50f00a8 || @r9 == 0xffffc105a50f00a8) {
	printf("Heaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaatttttttttt"); 
}
// printf("MiCopyFromUntrustedMemory  RIP: %llx Address: %llx string: %ws\n", @rip, @rcx, @rcx); 
}

If it's too hard to be fixed, or if you couldn't find the problem, don't worry, I'll try to find other ways to fix them.