Normalize Whitespace

Replace any sequence of whitespace by a single one.

It is particular useful if the output is a little messy: you can put extra spaces and new lines and it will still be valid.

Consider this example that prints a table but, for some reason, it uses only a single space as separator:

>>> print("Name Age kev 22 luc 23")
Name Age kev 22 luc 23

It looks ugly, does it?

We can add extra spaces and new lines to write a better example and combine it with +norm-ws so those extra spaces do not count.

>>> print("Name Age kev 22 luc 23")     # byexample: +norm-ws
Name    Age
kev     22
luc     23

Here is another example, this time written in Ruby:

>> Array(0...20)				# byexample: +norm-ws
=> [0,   1,  2,  3,  4,  5,  6,  7,  8,  9,
   10,  11, 12, 13, 14, 15, 16, 17, 18, 19]