'unexpected token' on declaring buffer name

[mk731]

Hey,

Declared buffer at the start of program, comes up with error message unexpected token

idk how to fix please help

attached indicator

indicator finds the gradient at close of 3 bars

[fxsaber]

.

[William Roeder]

input int InpDivPeriod=3
//--- buffers
double ExtDIVBuffer1[];

What does "input int InpDivPeriod=3 double ExtDIVBuffer1[];" supposed to mean?

   IndicatorBuffers(1)
   IndicatorDigits(Digits)
   SetIndexStyle(0,DRAW_LINE);

What does "IndicatorBuffers(1) IndicatorDigits(Digits) SetIndexStyle(0,DRAW_LINE);" supposed to mean?