How an absent value reads in a description's data table.
The word the announcements already use, rather than the raw null a chart
library reports, which the table used to print verbatim -- the one surface
where a reader could take it for a value.
A function rather than a constant: the word is translated, and a trace
outlives a language change, so it has to be resolved when the table is
built rather than when this module is loaded.
How an absent value reads in a description's data table.
The word the announcements already use, rather than the raw
nulla chart library reports, which the table used to print verbatim -- the one surface where a reader could take it for a value.A function rather than a constant: the word is translated, and a trace outlives a language change, so it has to be resolved when the table is built rather than when this module is loaded.