gFileHasPrefix: gFileHasPrefix
Description
Checks whether file has the prefix specified by prefix. In other word,
if the names of inital elements of files 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.Usage
gFileHasPrefix(object, descendant)
Value
TRUE if the files's parent, grandparent, etc is prefix.
FALSE otherwise.
Details
This call does no i/o, as it works purely on names. As such it can
sometimes return FALSE even if file is inside a prefix (from a
filesystem point of view), because the prefix of file is an alias
of prefix.