Problems with the listings package

[Karl Berry]

Hi Jobst,

    I found that at the moment the file listings.dtx isn't
    formattable. I found the culprit in the comparison of different
    flexible columns format, I attach two MWEs (one tabular_00.dtx for
    .dtx-files, the other tabular_01.tex for .tex- files), which are
    formattable with a pdflatex version at least from Sep. 2024, but not
    with the current version
    
    Is this incompatibility intended or will ist be fixed? If it is
    intended, is there a way to use the old documentation code?

I don't know. This is a question for the LaTeX people. If they don't
answer here, I suggest posting an issue at (I guess)
https://github.com/latex3/latex2e/issues or posting on
tex.stackexchange.com. --all the best, karl.

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