has_prefix

Checks whether this has the prefix specified by prefix.

In other words, if the names of initial elements of this's pathname match prefix. Only full pathname elements are matched, so a path like /foo is not considered a prefix of /foobar, only of /foo/bar.

A File is not a prefix of itself. If you want to check for equality, use equal.

This call does no I/O, as it works purely on names. As such it can sometimes return false even if this is inside a prefix (from a filesystem point of view), because the prefix of this is an alias of prefix.

Parameters:

this	input File
prefix	input File

Returns:

true if the this's parent, grandparent, etc is prefix, false otherwise.