[FileFormats.SDPA] reader cannot read https://github.com/vsdp/SDPLIB

[odow]

julia> using JuMP

julia> import Downloads

julia> file = "mcp124-1.dat-s"
"mcp124-1.dat-s"

julia> dir = mktempdir()
"/var/folders/bg/dzq_hhvx1dxgy6gb5510pxj80000gn/T/jl_HX9kEb"

julia> filename = joinpath(dir, file)
"/var/folders/bg/dzq_hhvx1dxgy6gb5510pxj80000gn/T/jl_HX9kEb/mcp124-1.dat-s"

julia> Downloads.download(
           "https://raw.githubusercontent.com/vsdp/SDPLIB/refs/heads/master/data/$file",
           filename,
       )
"/var/folders/bg/dzq_hhvx1dxgy6gb5510pxj80000gn/T/jl_HX9kEb/mcp124-1.dat-s"

julia> model = read_from_file(filename)
ERROR: ArgumentError: cannot parse "{+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0e+00}" as Float64
Stacktrace:
  [1] _parse_failure(T::Type, s::SubString{String}, startpos::Int64, endpos::Int64)
    @ Base ./parse.jl:387
  [2] #tryparse_internal#528
    @ ./parse.jl:383 [inlined]
  [3] tryparse_internal
    @ ./parse.jl:380 [inlined]
  [4] parse
    @ ./parse.jl:393 [inlined]
  [5] _broadcast_getindex_evalf
    @ ./broadcast.jl:709 [inlined]
  [6] _broadcast_getindex
    @ ./broadcast.jl:692 [inlined]
  [7] getindex
    @ ./broadcast.jl:636 [inlined]
  [8] macro expansion
    @ ./broadcast.jl:1004 [inlined]
  [9] macro expansion
    @ ./simdloop.jl:77 [inlined]
 [10] copyto!
    @ ./broadcast.jl:1003 [inlined]
 [11] copyto!
    @ ./broadcast.jl:956 [inlined]
 [12] copy
    @ ./broadcast.jl:928 [inlined]
 [13] materialize
    @ ./broadcast.jl:903 [inlined]
 [14] read!(io::IOStream, model::MathOptInterface.Utilities.GenericModel{…})
    @ MathOptInterface.FileFormats.SDPA ~/.julia/packages/MathOptInterface/98sse/src/FileFormats/SDPA/SDPA.jl:402
 [15] #11
    @ ~/.julia/packages/MathOptInterface/98sse/src/FileFormats/FileFormats.jl:150 [inlined]
 [16] open(::MathOptInterface.FileFormats.var"#11#12"{…}, ::String, ::Vararg{…}; kwargs::@Kwargs{})
    @ Base ./io.jl:396
 [17] open
    @ ./io.jl:393 [inlined]
 [18] compressed_open
    @ ~/.julia/packages/MathOptInterface/98sse/src/FileFormats/utils.jl:282 [inlined]
 [19] compressed_open(f::MathOptInterface.FileFormats.var"#11#12"{…}, filename::String, mode::String, ::MathOptInterface.FileFormats.AutomaticCompression)
    @ MathOptInterface.FileFormats ~/.julia/packages/MathOptInterface/98sse/src/FileFormats/utils.jl:320
 [20] read_from_file(model::MathOptInterface.Utilities.GenericModel{…}, filename::String)
    @ MathOptInterface.FileFormats ~/.julia/packages/MathOptInterface/98sse/src/FileFormats/FileFormats.jl:149
 [21] read_from_file(filename::String; format::MathOptInterface.FileFormats.FileFormat, kwargs::@Kwargs{})
    @ JuMP ~/.julia/dev/JuMP/src/file_formats.jl:282
 [22] read_from_file(filename::String)
    @ JuMP ~/.julia/dev/JuMP/src/file_formats.jl:276
 [23] top-level scope
    @ REPL[308]:1
Some type information was truncated. Use `show(err)` to see complete types.

shell> cat /var/folders/bg/dzq_hhvx1dxgy6gb5510pxj80000gn/T/jl_HX9kEb/mcp124-1.dat-s
 124
 1
 124
{+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0,+1.0e+00}
0 1 1 1 0.250000
0 1 1 87 -0.250000
0 1 2 2 0.500000
0 1 2 45 -0.250000
0 1 2 67 -0.250000
0 1 3 3 0.250000
0 1 3 8 -0.250000

[odow]

x-ref #1789