A couple of the chemistry examples in GTM section 16 make use of the capital passage mode.
They are all single letter compounds, so all caps, and lots of them -- it is definitely less space to use a passage indicator. A potential heuristic is:
All cap letters (search for L not preceded by C and 𝐶 b)
At least 3 4(?) of them
At least one white space (none => use cap word mode instead)
Note: in cap word/passage mode, no contractions are allowed.
A couple of the chemistry examples in GTM section 16 make use of the capital passage mode.
They are all single letter compounds, so all caps, and lots of them -- it is definitely less space to use a passage indicator. A potential heuristic is:
Note: in cap word/passage mode, no contractions are allowed.