How can I add syntax highlight all *todo.txt files?

[buscon]

Hi,

I have different todo.txt files for different projects and I would like to keep them separated.
todo.txt-vim highlights the syntax only if you open a file with the name "todo.txt".
I would like the plugin to highlight all files which ends with "todo.txt", in regular expression would be "*todo.txt".

Where can I add such feature?

thanks.

[baetheus]

It looks like the filetype detection is configured like so:

autocmd BufNewFile,BufRead [Tt]odo.txt set filetype=todo
autocmd BufNewFile,BufRead *.[Tt]odo.txt set filetype=todo
autocmd BufNewFile,BufRead [Dd]one.txt set filetype=todo
autocmd BufNewFile,BufRead *.[Dd]one.txt set filetype=todo

This means that *.todo.txt and *.Todo.txt should work as todo.txt files as well. I've tested locally and it seems to work for me.