A change is either a state change, or a scan or a grapheme change
An associative change is either adding or removing an association
An update is a sequence of changes
Source code of the graph function.
Audio input file (tape) grapheme.
Hint key for copying scan connections during copy
.
Hint key for copying scan connections during copy
. Value should be a
predicate function (Proc[S]) => Boolean
. If absent, all connections
are copied.