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bug#22090: Isearch is sluggish and eventually refuses further service wi


From: Eli Zaretskii
Subject: bug#22090: Isearch is sluggish and eventually refuses further service with "[Too many words]".
Date: Fri, 04 Dec 2015 20:48:23 +0200

> Date: Fri, 4 Dec 2015 16:37:08 +0000
> From: Artur Malabarba <address@hidden>
> Cc: address@hidden, Alan Mackenzie <address@hidden>
> 
> > What about ligatures, or symbols like ℻?
> 
> Won't match cross-case. 

So f will match ffi but not ℻, and F will match ℻ but not ffi, is that
right?

> > Also, by "lower-case equivalent" do you mean a case mapping defined by
> > the UCD
> 
> Yes. Visual appearance is irrelevant. 
> 
> Strictly speaking, to match a general character, you need to search for its
> decomposition. If this character also has a case "equivalent" (as per
> current-case-table), you can also search for the decomposition of this
> equivalent. 

OK, thanks.  I will try to think if this needs to be explained in the
manual.





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