Sparkline in unicode: Difference between revisions

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To vary the approach, the block index value is derived here as an option type,
To vary the approach, the block index value is derived here as an option type,


in a search over 7 zero-indexed bounds [0..6].
in a search over 7 zero-indexed lower bounds [0..6].


The index used is either just that of the first bound found to exceed the given data value,
The index used is either just that of the first bound which exceeds the given data value,


or 7, if the search result was 'not found' (Nothing).
or 7, if the search result was 'not found' (Nothing).