Re: generic buffer parsing cache data

[Richard Stallman]

    I propose to add something generic.  For instance, Python mode needs to
    know indentation level of blocks.  It seems that `syntax-ppss` doesn't
    return it at all.  And adding everything that might ever be needed by
    some XYZ mode seems counter-productive and complicates an already complex
    function and its return value.

I would be glad to see this mechanism made more powerful such that it can
serve the needs of a wider range of languages.  The challenge is to
design a mechanism that is clean and simple and yet can do the job.
Would you like to work on it?