How to ignore part of the filename in "infer and update tag from filename"

[cbd1970]

Sometimes, the filenames contain information that I do not want to use in a tag.
e.g. if filename is "get a grip\to be ignored_Livin' on the Edge - aerosmith.mp3"

I have created template <Album>\_<Title> - <Artist> and this ignores the part of the file name "to be ignored"
However, that does not seem like intended feature ..
Is there a better way to ignore parts of filename for tags ?

[redwing]

You could use a nonexistent tag name for the parts you don't need.
With your example, try <Album>\<None>_<Title> - <Artist>
Then <None> part in the filename will get discarded because no such a tag exists.