[Nano-devel] [PATCH] Implement incremental search v6

[Marco Diego Aurélio Mesquita]

Differences from previous version:
 - Incremental search was removed from "find in help" and "replace".
 - Problems with regexp were fixed.

I'm still using a loop on do_search. The mutual recursion (with both
self recursive functions) between do_search and do_replace gets hairy.
For example, the loop nicely handles the following situation: ^W M-I
dam M-W ^R ^C. Cancelling the search while on replace is handled
correctly by the loop; I could not find a simple recursive way to make
it behave correctly in this situation.

Please review it.

0001-Implement-incremental-search.patch
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