Zeilenenden könnten in der Realität folgende Zeichenkombinationen sein:
Line Feed, U+000A
Vertical Tab, U+000B
Form Feed, U+000C
Carriage Return, U+000D
CR (U+000D) followed by LF (U+000A)
Next Line, U+0085
Line Separator, U+2028
Paragraph Separator, U+2029

Weiteres
http://www.w3.org/TR/REC-xml/#sec-line-ends
http://en.wikipedia.org/wiki/Newline#Representatio...
http://en.wikipedia.org/wiki/Newline#Unicode