ViM: how to put string from input dialog in a list -

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VIM: Do anyone know how to insert the string from the input dialog in the list?

P:

string "3,5,12,15" 

  list item [1] = 3 list item [ 2] = 5 list item [3] = 12 etc.   
 And how do I know how many list items are there?   
 
 
 to : h E714   
  : Let L = len (list) "Number of items in the list: list = split (" ABC ")" list item in string "  
 
 In your case, / P> 
  two string = "3,5,7,19" given list = partition (string, ",") echo (list)

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