Leading blanks, optional semicolon at end of line, and intermittent comments / new lines

Leading blanks after end of line and a semicolon at end of file cause syntax errors. The leading blanks might be annoying in interactive use and the semicolon in scripts when commenting out the statements after a semicolon (one has to comment the semicolon too). In other words these two programs should be parsable:

print(0)
  print(1)

print(1);

Also this is a valid input:

b =
#;
3

c
=
5

a =
"""comment"""
true

Is it meaningful to support this syntax? Is it not better to support only well readable input?