I had the following problem and I think it is a bug in some fold-related
code:
I was trying to use the NarrowRegion plugin to do diffs between two
functions in the same file by creating narrowed buffers for each function
and calling :diffthis on them. When I tried to do this using folds, i.e.
:.,+2NarrowRegion to create a buffer for a folded-up function which looked
like this:
int FuncName() {
.....folded........
}
I got everything but the final brace in the narrowed buffer. Eventually I
discovered that this has nothing to do with NarrowRegion, but just a yank
such as:
:.,+2y
over a fold gives only the folded lines but not the line after the fold.
A normal command of y2j works just fine and gets the line after the fold.
Similarly, in a file where multiple folds are right after one another (a
nice example is in fold.c of the vim code), a normal command of y2j yanks
two folds, but :.,+2y yanks only one.
A little debugging led me to believe that the problem is in this code in
ex_docmd.c, lines 2548-2549 in the latest git code:
/* Put the first line at the start of a closed fold, put the last line
* at the end of a closed fold. */
(void)hasFolding(ea.line1, &ea.line1, NULL);
(void)hasFolding(ea.line2, NULL, &ea.line2);
This seems to use the side effect of the hasFolding call to set the value
of ea.line2 which is passed to the actual yank command.
I hope this will be helpful to fix the bug.
Ephraim
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