Just want to get the table layout part out of the code, How?

[Yichun Wang]

I've just downloaded the source code and built it, beside this, I have
no more knowledge about Mozilla, and I think the whole mozilla project
is too big for me to understand, for I just want to know and use the
exact implemention of table layout part, but I don't know how can I
extract this part from the project, so please help me, thank you!