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Inhibit redisplay of prompt in 4.4-alpha

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I am testing the following change in 4.4-alpha:

ggg. The commands executed by `bind -x' now redisplay at most the final line
     of a multi-line prompt, and those commands may return 124 to indicate
that
     the entire prompt should be redrawn.

This is great news and means that two-line prompts now can be used with
"bind -x". It seems to work as intended.

I see that a function can return 124 to make the whole prompt redisplay.
However, for my purposes, it would be even better if there also was a code
that a function could return which would inhibit all redisplay of the
prompt.

I have described the kind of "widget functions" that I use in the
thread "bind -x and multiple prompt/command lines" from April of 2014. When
using such a function, the flickering that results from the prompt
redisplaying is a bit annoying.

If there were some return code that could inhibit the prompt redisplay,
that would therefore be great.

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Inhibit redisplay of prompt in 4.4-alpha Jesper Nygårds <jesper.nygards@gmail.com> - 2015-08-03 12:43 +0200

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