catch name
#markup-end event
Use #markup-end to signal the end of a markup-region-event to a do
markup-parse. A signal to #markup-end must be paired with a matching signal to
#markup-start, with both referring to the same event (see ==).
The element rules in the following example merge consecutive para elements in each section
into one:
global markup-region-event first-para-event variable to 1 element "section" output "%c" do when number of first-para-event = 1 signal throw #markup-end first-para-event clear first-para-event done element "para" do when number of first-para-event = 0 signal throw #markup-start #current-markup-event set new first-para-event to #current-markup-event done output #content