Describe the bug

skipSpaces always commits to its path, even if it doesn't consume any spaces. This occurs because it uses the consumeWith function.

To Reproduce

See https://try.purescript.org/?gist=a37247868f0f7aaf3244f8c07fc304f6

In the line 4, no spaces are consumed. So, the (singleLineComment <|> newline) parse shouldn't occur and we should instead move to the next part of the parser string "@" *> string "value".

Expected behavior

skipSpaces should only commit to its path if it actually consumes content.

Additional context
Add any other context about the problem here.