MathOptInterface.jl
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[FileFormats.LP] write a proper parser
The LP reader is a source of many problems because it was designed as a bit of a hack and doesn't follow any formal grammar. It's probably time we rewrote a proper implementation.
https://discourse.julialang.org/t/sos-constraints-in-lp-file-throwing-malformed-sos-constraint-error/106324
See also: https://github.com/jump-dev/MathOptInterface.jl/issues?q=is%3Aissue+FileFormats.LP+is%3Aclosed
cc @hdavid16