question: private static Result parse ( String input , boolean requireToNormalize ) { String root = "" ; WindowsPathType type = null ; int len = input . length ( ) ; int off = 0 ; if ( len > 1 ) { char c0 = input . charAt ( 0 ) ; char c1 = input . charAt ( 1 ) ; char c = 0 ; int next = 2 ; if ( isSlash ( c0 ) && isSlash ( c1 ) ) { type = WindowsPathType . UNC ; off = nextNonSlash ( input , next , len ) ; next = nextSlash ( input , off , len ) ; if ( off == next ) throw new InvalidPathException ( input , "UNC path is missing hostname" ) ; String host = input . substring ( off , next ) ; off = nextNonSlash ( input , next , len ) ; next = nextSlash ( input , off , len ) ; if ( off == next ) throw new InvalidPathException ( input , "UNC path is missing sharename" ) ; root = "\\\\" + host + "\\" + input . substring ( off , next ) + "\\" ; off = next ; } else { if ( isLetter ( c0 ) && c1 == ':' ) { char c2 ; if ( len > 2 && isSlash ( c2 = input . charAt ( 2 ) ) ) { if ( c2 == '\\' ) { root = input . substring ( 0 , 3 ) ; } else { root = input . substring ( 0 , 2 ) + '\\' ; } off = 3 ; type = WindowsPathType . ABSOLUTE ; } else { root = input . substring ( 0 , 2 ) ; off = 2 ; type = WindowsPathType . DRIVE_RELATIVE ; } } } } if ( off == 0 ) { if ( len > 0 && isSlash ( input . charAt ( 0 ) ) ) { type = WindowsPathType . DIRECTORY_RELATIVE ; root = "\\" ; } else { type = WindowsPathType . RELATIVE ; } } if ( requireToNormalize ) { StringBuilder sb = new StringBuilder ( input . length ( ) ) ; sb . append ( root ) ; return new Result ( type , root , normalize ( sb , input , off ) ) ; } else { return new Result ( type , root , input ) ; } }
target:  Parses the given input as a Windows path.