40 columns                              |
>>> Preserve unicode whitespace inside comments but trim from the end.
// control middle: ×09 end: ×09 ×09
// control middle: ×0b end: ×0b ×0b
// space middle: ×20 end: ×20 ×20
// control middle: ×85 end: ×85 ×85
<<<
// control middle: ×09 end:
// control middle: ×0b end:
// space middle: ×20 end:
// control middle: ×85 end:
>>> Preserve unicode whitespace inside comments but trim from the end.
// no-break space middle: ×a0 end: ×a0 ×a0
// ogham space mark middle: ×1680 end: ×1680 ×1680
// en quad middle: ×2000 end: ×2000 ×2000
// em quad middle: ×2001 end: ×2001 ×2001
// en space middle: ×2002 end: ×2002 ×2002
// em space middle: ×2003 end: ×2003 ×2003
<<<
// no-break space middle: ×a0 end:
// ogham space mark middle: ×1680 end:
// en quad middle: ×2000 end:
// em quad middle: ×2001 end:
// en space middle: ×2002 end:
// em space middle: ×2003 end:
>>> Preserve unicode whitespace inside comments but trim from the end.
// three-per-em space middle: ×2004 end: ×2004 ×2004
// four-per-em space middle: ×2005 end: ×2005 ×2005
// six-per-em space middle: ×2006 end: ×2006 ×2006
// figure space middle: ×2007 end: ×2007 ×2007
// punctuation space middle: ×2008 end: ×2008 ×2008
// thin space middle: ×2009 end: ×2009 ×2009
// hair space middle: ×200a end: ×200a ×200a
<<<
// three-per-em space middle: ×2004 end:
// four-per-em space middle: ×2005 end:
// six-per-em space middle: ×2006 end:
// figure space middle: ×2007 end:
// punctuation space middle: ×2008 end:
// thin space middle: ×2009 end:
// hair space middle: ×200a end:
>>> Preserve unicode whitespace inside comments but trim from the end.
// line separator middle: ×2028 end: ×2028 ×2028
// paragraph separator middle: ×2029 end: ×2029 ×2029
// narrow no-break space middle: ×202f end: ×202f ×202f
// medium mathematical space middle: ×205f end: ×205f ×205f
// ideographic space middle: ×3000 end: ×3000 ×3000
// zero width no-break space middle: ×feff end: ×feff ×feff
<<<
// line separator middle: ×2028 end:
// paragraph separator middle: ×2029 end:
// narrow no-break space middle: ×202f end:
// medium mathematical space middle: ×205f end:
// ideographic space middle: ×3000 end:
// zero width no-break space middle: ×feff end:
>>> Unicode line endings.
// line feed middle: ×0a // end: ×0a ×0a
// form feed middle: ×0c // end: ×0c ×0c
// carriage return middle: ×0d // end: ×0d ×0d
<<<
// line feed middle:
// end:

// form feed middle: ×0c // end:
// carriage return middle: // end: