support display of arbitrary textual MIME types in REPL #19993
Merged
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By default, the REPL displays objects in text/plain format, but if you explicitly call
display("text/foo", x)
then this PR allows it to print.e.g. it was noted by @cstjean on discourse that the inability to do
display("text/csv", matrix)
was annoying. This now works.Also as noted by @cstjean, the exception thrown by
display("text/foo", x)
was somewhat confusing if the problem is the lack of ashow
method fortext/foo
. After this PR, it throws the expectedMethodError
forshow
(rather than aMethodError
fordisplay
).