posix property
final
      POSIX-style paths use "/" (forward slash) as separators. Absolute paths start with "/". Used by UNIX, Linux, Mac OS X, and others.
Implementation
static final Style posix = PosixStyle();POSIX-style paths use "/" (forward slash) as separators. Absolute paths start with "/". Used by UNIX, Linux, Mac OS X, and others.
static final Style posix = PosixStyle();