I wrote:
> Yasuhiro Matsumoto wrote:
>
> > Copy texts into star register, like: CTRL-V jjjjll "*y,
> > getregtype() should return "^V3". On linux environment, it works fine
> > because vim seems to handle changes of clipboard.
> >
> > Below is a patch to re-calculate y_width.
> >
> > - Yasuhiro Matsumoto
> >
> > diff -r b8f703a4e55f src/ops.c
> > --- a/src/ops.c Fri Jul 04 16:43:17 2014 +0200
> > +++ b/src/ops.c Tue Jul 08 19:40:23 2014 +0900
> > @@ -906,6 +906,15 @@
> > y_current = &(y_regs[i]);
> > if (writing) /* remember the register we write into for do_put() */
> > y_previous = y_current;
> > + if (y_current->y_array != NULL && y_current->y_type == MBLOCK)
> > + {
> > + for (i = 0; i < y_current->y_size; ++i)
> > + {
> > + int width = mb_string2cells(y_current->y_array[i], -1) - 1;
> > + if (y_current->y_width < width)
> > + y_current->y_width = width;
> > + }
> > + }
> > }
>
> I'm wondering if this is the right place to do the computation. It
> should only be needed the first time the register is used, after that
> the y_width value should already be correct.
>
> Does it work to only compute y_width when "writing" is TRUE?
> Or perhaps y_width needs to be set when the register is filled
> elsewhere?
>
> Going through all the lines in the register an calling mb_string2cells()
> is quite a bit of work. It should not be done unless needed.
Also, test_eval breaks with this change.
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