TermBuf::Link
Stability: stable — changes only in a major release.
A hyperlink a range of cells carries, as OSC 8 describes one.
id is the protocol's own grouping parameter, not this shard's. Two ranges sharing one are the same link as far as the terminal is concerned, which is what makes a link wrapped across two rows highlight as a whole rather than as two. Leaving it off tells the terminal to group adjacent cells only.