[StainlessS]

Not really too good if inside gScriptclip,
Reason, will scan and install FillBorders2_TestBord() function as GScript function at every iteration of gScriptclip, ie slow + memory consuming.
Above written for using GScript(""" FillBorders2_TestBord()""") inside scriptCip, also applies to GScript(""" for( ... etc """) and Eval().
FillBorders2_TestBord() is better outside of function at main level, or maybe after FillBorders2_dBugS() in FillBorders2().

However, there was an error in AviSynth 2.6.

Would you like to clarify, was no promblem here for v2.60 std.

I'm still working on this a bit.

And dont worry bout this, its OK.

Function FillBorders2_TestBord(clip c,int edge, Float thr, int MaxB, Int Pad) {
    # edge: 0=lft, 1=rgt, 2=top, 3=bot
    result=0 w=c.width h=c.height
    for(i = 1, MaxB) {
        crpd=c.Crop((edge==1)?w-i:0,(edge==3)?h-i:0,(edge==0)?i:0,(edge==2)?i:0)
        if(crpd.AverageLuma < thr)  { result=i+pad }
        else                        { i=MaxB       }
    }
    return result
}

Where clip = 640x480, and crop width = 8. [ w=640, h=480, crop width below is i ]

# edge: 0=lft, 1=rgt, 2=top, 3=bot
#crpd=c.Crop( (edge==1)?w-i:0   , (edge==3)?h-i:0   , (edge==0)?i:0 , (edge==2)?i:0)
#crpd=c.Crop( (    RGT)?640-8:0 , (    BOT)?480-8:0 , (    LFT)?8:0 , (    TOP)?8:0)
LFT = crop(     0,     0,    8,    0)   # Width  = 8
RGT = crop( 640-8,     0,    0,    0)   # Width  = 0, means from left coord(640-8) all the way to right edge
TOP = crop(     0,     0,    0,    8)   # Height = 8
BOT = crop(     0, 480-8,    0,    0)   # Height = 0, means from top coord(480-8) all the way to bot edge

crop(0,0,0,0) is Full Frame.

EDIT:
For for() loop, dont need specify increment if its 1 (default = 1),
ie

    for(i = 1, MaxB, 1)     
    for(i = 1, MaxB)