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Pretty printing for sparse arrays #81

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Pretty printing for sparse arrays #81

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9 changes: 9 additions & 0 deletions src/blockdiagonal.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -168,3 +168,12 @@ function Base.copy!(dest::BlockDiagonal, src::BlockDiagonal)
end
return dest
end

# Pretty-printing for sparse arrays
function Base.replace_in_print_matrix(B::BlockDiagonal, i::Integer, j::Integer, s::AbstractString)
p, ip, jp = _block_indices(B, i, j)
p == -1 && return Base.replace_with_centered_mark(s)
b = getblock(B, p)
jp += last(axes(b, 2))
Base.replace_in_print_matrix(b, ip, jp, s)
end
11 changes: 11 additions & 0 deletions test/blockdiagonal.jl
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Expand Up @@ -67,6 +67,17 @@ using Test
# Should not allow setting value outside on-diagonal blocks to non-zero
@test_throws ArgumentError X[1, 7] = 1
end

@testset "pretty-printing" begin
io = IOBuffer()
d = Diagonal(1:6)
Base.print_array(io, d)
s1 = String(take!(io))
b = BlockDiagonal([Diagonal(1:3), Diagonal(4:6)])
Base.print_array(io, b)
s2 = String(take!(io))
@test s1 == s2
end
end # AbstractArray

@testset "isequal_blocksizes" begin
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