Dual-Extension Files

[Lewiscowles1986]

Currently has very limited compressed dual-type support. Would be nice to make the list longer than.

• gz
• xz
• bz2

[peter279k]

According to the List_of_archive_formats, the dual archive file formats are as follows:

• .tar.gz
• .tar.Z
• tar.bz2
• .tar.lzma
• .tar.xz

[Lewiscowles1986]

So .lzma & .Z added to the list? What about non-archive formats? I think the way it works now is to allow dual extensions based on the end extension.

[Lewiscowles1986]

Looks like table tests could do with updating and the list could move to a class / namespace level const

[peter279k]

@Lewiscowles1986, actually I don't find any non-archive dual extension format.

Maybe we should check all available file format lists on File_format.