Execution of a String

[Azylaminaz]

Is it possible to execute a string as if it were just another line of code?
For example execute the string "call CreateUnit(Player(0), 'hpea', 0, 0, 0)" or perhaps substitution of a variable:

set <my string> = 12

IE, in VBS, you can do Eval(<string>)

 

[Sgqvur]

Nope.

If it was possible then I think the WE would've become obsolete
compared to IngameWE.

>set <my string> = 12
That is probably possible with a preprocessor(for strings known at compile time).

 

[Zeth]

I don't understand >.<

 

[Weep]

For example execute the string "call CreateUnit(Player(0), 'hpea', 0, 0, 0)"

I suppose, in theory, you could create a JASS parser out of JASS, but it would be a monumental amount of work...

or perhaps substitution of a variable:

set <my string> = 12

Create a function for every possible string to save the value to that string, and execute them using [ljass]ExecuteFunc(chat string)[/ljass]...but beware, it will crash if you mistype... :thdown:

Alternately, abandon variables for hashtable entries set using StringHash.

 

[DioD]

its possible to construct variable code with condition arrays, sadly code array is not allowed, but its possible to store code variables.

set codechunk[66] = Condition(function ABC)
set codehandler[66] = CreateTrigger()
call TriggerAddCondition(codehandler[66],codechunk[66])

+

call EvaluateTrigger(codehandler[66])

this will drain a lot of memory and will be slow, but still possible.

 

[uberfoop]

Is it possible to execute a string as if it were just another line of code?

Nope. It's entirely possible to build an interpreter in vJass, but it's so hilariously stupid that even when I built half of one just for kicks I never bothered finishing it.

I actually did make a system once that was able to read a string as an infix-notated mathematical statement and return its real value, accounting for parenthises and assumed multiplication and order of operations, though. But even that's a gigantic pain.

 

[Bribe]

StringParser is the only working example I know about which utilises any of these things...

http://www.hiveworkshop.com/forums/jass-functions-413/string-parser-170574/