[Lua][vJass] Ascii

[Geries]

integers only possible to hold 4 characters. And S2A is not useless, cause you can retrieve stuffs like 'abcd' which as I see good for debugging things.

 

[Kingz]

I see, so in order to encode a whole string i would have to use an array of integers..

Nevermind then, sorry for the confusion.

 

[Magtheridon96]

You can use StringHash for this instead
Ascii only converts stuff like 'lolo' to "lolo" and "trol" to 'trol'.

 

[Kingz]

I see, didn't even know of StringHash() till i checked out this library, but it will certainly prove useful for me.

Thanks again.

 

[Magtheridon96]

Of course, be warned, StringHash returns very large values, usually between a few hundred millions and a 2.1 billion, and often very small like -1.9 billion or something, so they are not siutable for array use.
Of course, here, Ascii takes the StringHash value, and minimizes it using division (dividing by something around 0x40000) and then adds a value to range it from 0 to 8192.

I'd only recommend using StringHash for hashtable keys.
You can however use my StringIndexer to get a unique id for each string that is in the range [0....8191]

 

[Kingz]

I was using the ascii encoded strings for hashtable keys anyway.
So i will be just fine, thanks again.

 

[Nestharus]

Updated

Added just about all ascii values (0-255) =).

Keep in mind that characters above 126 will not be able to be inputted by a player as plain text as wc3 treats those characters as 2+ characters (one of them was 5 I think, jeezes).

 

[Bribe]

If anyone wants a Lua version of this exact API for backwards-compatibility, here it is in all its glory:

Char2Ascii = string.byte
Ascii2Char = string.char
function A2S(value)
    local result = ""
    for byteno=1,4 do
        result = string.char(value % 256) .. result
        value = value // 256
    end
    return result
end
S2A = FourCC