using csplit to split a file based on a regular expression to multiple files

I have a text file that has the contents of the example below, and I would like to split the file to multiple files.

[TXT]	/path/to/[TXT]
[BAT]	/path/to/[BAT]
[TXT]	/path/to/blah/[TXT]
[BAT]	/path/to/blah/[BAT]

So I have figured out I can use csplit to at least partially do what I wanted to achieve. csplit -f 'paths-' -b '%04d.txt' 'path/to/filelist.txt' '/^\[(.*)]\t/' '{*}' However this splits to paths-0000.txt. I was hoping for something more like paths-txt.txt and paths-bat.txt. Is there anyway I can get the regex match into the prefix match at all? I did try things like -f 'paths-$1.txt' and -f 'paths-\1.txt'. But neither of those did what I was hoping for them to do.