short, single-issue regression tests are preferred to a single, long,
multiple-issue regression test.
+If the change in the output is small or easy to overlook, use bigger
+staff size -- 40 or more (up to 100 in extreme cases). Size 30 means
+"pay extra attention to details in general".
+
Use existing regression tests as templates to demonstrate the type of
header information that should be included in a regression test.
during line breaking, for example, when we want to estimate the Y-extent
of a spanner broken at given starting and ending columns.
-If the pure function you're writing takes more than three arguments
-(say, for example, a chained offset callback), this is not a problem:
-just make sure that the grob is the first argument and that start and
-end are the last two arguments.
-
@node How purity is defined and stored
@subsection How purity is defined and stored