}

type sparseBlocks struct {
	values []valueRange
	offset []uint16
}

var idnaSparse = sparseBlocks{
	values: idnaSparseValues[:],
	offset: idnaSparseOffset[:],
}

// Don't use newIdnaTrie to avoid unconditional linking in of the table.
var trie = &idnaTrie{}

// lookup determines the type of block n and looks up the value for b.
// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block