# File: strstrip.py
# trips off leading and/or trailing blanks
#
#
# Matt Bishop, MHI 289I, Fall 2021
#
while True:
    # read in a string; quit on EOF
    try:
        instr = input("Enter a string: ")
    except EOFError:
        break
    except:
        print("Unknown error; EOF to end")
        continue
    #
    # put quotes around the string to show its boundaries when it is printed
    #
    prstr = '"' + instr + '"'
    #
    # now strip the white space
    #
    transstr = '"' + instr.lstrip() + '"'
    print("Deleting the leading white space from", prstr, "gives", transstr)
    transstr = '"' + instr.rstrip() + '"'
    print("Deleting the trailing white space from", prstr, "gives", transstr)
    transstr = '"' + instr.strip() + '"'
    print("Deleting the leading and trailing white space from", prstr, "gives", transstr)