State the step-down rule at drawSteps' climbed, and name the parts of route's draw condition
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@@ -266,11 +266,13 @@ func (t *table) route(tail []string, descended bool) (tableRoute, error) {
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if err != nil {
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return tableRoute{}, err
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}
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// A selector further down pins this table by ancestry, so the walk draws only
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// where none follows; drawing first could draw a row the selector is not inside.
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r := tableRoute{sel: sel, draw: sel == "" && (descended || len(tail) > 0) && !grammar.HasSelector(tail)}
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selected, readsRow := sel != "", descended || len(tail) > 0
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// A selector further down pins this table by ancestry; drawing first could draw a row the
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// selector is not inside.
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pinnedBelow := grammar.HasSelector(tail)
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r := tableRoute{sel: sel, draw: !selected && readsRow && !pinnedBelow}
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switch {
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case len(tail) == 0 && sel == "" && !descended:
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case !selected && !readsRow:
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r.next = t
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case len(tail) == 0:
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r.next = t.rowNode
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