Test for a lot of variations of the 'fileformats' option

STARTTEST
:" first write three test files, one in each format
:set fileformat=unix
:set fileformats=
:/^unix/;/eof/-1w! XXUnix
:/^dos/;/eof/-1w! XXDos
:set bin noeol
:$w! XXMac
:set nobin eol
:bdel XXUnix XXDos XXMac
:" create mixed format files
:!cat XXUnix XXDos >XXUxDs
:!cat XXUnix XXMac >XXUxMac
:!cat XXDos XXMac >XXDosMac
:!cat XXUnix XXDos XXMac >XXUxDsMc
:"
:" try reading and writing with 'fileformats' empty
:set fileformat=unix
:e! XXUnix
:w! test.out
:e! XXDos
:w! XXtt
:!cat XXtt >>test.out
:e! XXMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUnix XXDos XXMac
:set fileformat=dos
:e! XXUnix
:w! XXtt
:!cat XXtt >>test.out
:e! XXDos
:w! XXtt
:!cat XXtt >>test.out
:e! XXMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUnix XXDos XXMac
:set fileformat=mac
:e! XXUnix
:w! XXtt
:!cat XXtt >>test.out
:e! XXDos
:w! XXtt
:!cat XXtt >>test.out
:e! XXMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUnix XXDos XXMac
:"
:" try reading and writing with 'fileformats' set to one format
:set fileformats=unix
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:set fileformats=dos
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:set fileformats=mac
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:"
:" try reading and writing with 'fileformats' set to two formats
:set fileformats=unix,dos
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:e! XXUxMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxMac
:e! XXDosMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXDosMac
:set fileformats=unix,mac
:e! XXUxDs
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDs
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:e! XXDosMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXDosMac
:set fileformats=dos,mac
:e! XXUxDs
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDs
:e! XXUxMac
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxMac
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:"
:" try reading and writing with 'fileformats' set to three formats
:set fileformats=unix,dos,mac
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:set fileformats=mac,dos,unix
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:" try with 'binary' set
:set fileformats=mac,unix,dos
:set binary
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:set fileformats=mac
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:bdel XXUxDsMc
:set fileformats=dos
:e! XXUxDsMc
:w! XXtt
:!cat XXtt >>test.out
:" add a newline at the end
:!cat XXUnix >>test.out
:!rm -f XXtt XXUnix XXDos XXMac XXUxDs XXUxMac XXDosMac XXUxDsMc
:qa!
ENDTEST

unix
unix
eof

dos
dos
eof

mac
mac