bug#9571: 24.0.50; user option to turn off bidi, please

[Richard Stallman]

    I don't think modifying entries in a char-table creates a new one.  It
    just modifies entries in the existing one.  Perhaps Handa-san could
    comment on that.

It would be terribly unclean to change that data structure globally
rather than make a copy.  And it would affect all buffers at once.
This ought to be a per-buffer feature.

    It could be done, but why hard-code in C what can be done in Lisp?

Because there is only one thing to be done, and it is so simple in C.

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Dr Richard Stallman
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