# File: ChapterLists/mapList.py
"""
[2, 4, 18]
enter numbers till 0
> 4
> 5
> 1
> 0
sorted input list= [1, 4, 5]
ASCII in Alan: [65, 108, 97, 110]
[3, 1, 4]
[3, 1, 4]
[2]
"""
def removeNegative(x): return x >= 0

def doubleUp(x): # double up a number
    return x*2

def myinc(x): return x+1
def incAll(V): return list(map(myinc,V)) 
def inputPos():
    x = 1
    L = []
    print('enter numbers till 0')
    while x != 0:      
        x = int(input("> "))
        if ( x != 0 ):
            L.append( x )
    L.sort()
    print("sorted input list=",L)

def main():
    print(list(map(doubleUp,[1,2,9]))) # [2,4,18]
    inputPos() #call function 
    print("ASCII in Alan:", list(map(ord,'Alan')))  #65 108 97 110
    print(list(map(myinc,[2,0,3])))
    print([x + 1 for x in [2,0,3]]) # [3,1,4]
    print([x for x in [2,0,-3] if  x > 0]) #[2] #filter
    L = list(map( doubleUp, filter(removeNegative, [3,-2,1]) )) #[6,2]
    print(L)

main()