ord() | Return the ASCII value of a character

[vampiredom]

Here is a useful function I wrote for returning to ASCII value of a character, like the reverse of chr()

Note that AviSynth seems to ignore CHR(0) in strings ... A blank string will always return 0.

# requires Gscript.dll
global __ord_ASCII__ = ""

function ord(string c) {
        c = LeftStr(c,1)
        
        Gscript("""
        if (__ord_ASCII__ == "") {
                for (i=1, 255, 1) {
                        global __ord_ASCII__ = __ord_ASCII__ + chr(i)
                }
        }
        """)
        
        return (c == "") ? 0 : FindStr(__ord_ASCII__, c)
}

[Gavino]

Originally Posted by vampiredom

global __ord_ASCII__ = ""
...
        if (__ord_ASCII__ == "") {
                for (i=1, 255, 1) {
                        __ord_ASCII__ = __ord_ASCII__ + chr(i)
                }
        }

This assignment is setting a local variable, so the loop will be redone on each call. Should be:

                        global __ord_ASCII__ = __ord_ASCII__ + chr(i)

[vampiredom]

Oops! Fixed. Thanks. [without that, it would kind of defeat the whole reason I wrote the function this way, wouldn't it? ]