Return the default virtual filesystems and the associated
filter commands.
fileSystems
Answer the virtual file systems that can be processed by this subclass.
These are #gz (gzip a file), #ugz (uncompress a gzipped file),
#Z (compress a file via Unix compress), #uZ (uncompress a compressed
file), #bz2 (compress a file via bzip2), #ubz2 (uncompress a file via
bzip2), #tar (make a tar archive out of a directory), #tgz (make a
gzipped tar archive out of a directory), #nop (do nothing, used for
testing) and #strings (use the `strings' utility to extract printable
strings from a file).
fileTypes
Return the valid virtual filesystems and the associated
filter commands.
priority
Answer the priority for this class (higher number = higher priority) in
case multiple classes implement the same file system.
1.202.2 VFS.DecodedFileHandler: files
at: aName
Signal an error, as this can't represent a file container.
open: class mode: mode ifFail: aBlock
Open the receiver in the given mode (as answered by FileStream's
class constant methods)
parent: containerFileHandler fsName: aString
Private - Initialize a new object storing the contents of the
virtualFileName file into temporaryFileName.
realFileName
Answer the real file name which holds the file contents,
or nil if it does not apply.
release
Release the resources used by the receiver that don't survive when
reloading a snapshot.
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