I really like your plugin, I have been using it a lot lately.
I know you talk about this in the readme, but it would be nice if the it was possible to align by the first match of a regular expression without having to add more code to the .vim file. Maybe you could have a Tabf command in addition to the Tab command.
how do you match just the first item?
but only for the first underscore?
@dannydulai You use a pattern that matches all non-underscores from the beginning of the line to an underscore. There's an example in the help: https://github.com/godlygeek/tabular/blob/master/doc/Tabular.txt#L133-151
Closing per @graywh's correct answer.