[webkit-dev] How does webkit keep track of co-ordinates/dimension of each line of text in a Paragraph tag?

[ying lcs]

Hi,

Can you please tell me how does webkit keep track of
co-ordinates/dimension of each line of text in a Paragraph tag?
For example, if I have a Paragraph of text. Web kit will split it up
into multiple lines of text. How does webkit (what data-structure it
uses)
to keep track of each line of text within that Paragraph?

Thank you.