Bug when closing delimiter is at line end and open delimiter is after a multi-byte character

[agguser]

For example, when a line of text is

a→'bc'

, and the cursor is on b, doing ds' causes the line to be

abc→

instead of

a→bc

. Note that when set virtualedit=onemore, the bug does not occur.

[agguser]

A fix is to change the line (in plugin/surround.vim)

  if col("']") == col("$") && col('.') + 1 == col('$')

to

  if col("']") == col("$") && virtcol('.') + 1 == virtcol('$')

. But I'm not sure if this will cause another bug.

[tpope]

I'm not sure either, but I'd be willing to merge a PR and find out.

[agguser]

It seems that the fix doesn't cause a bug, so I close this issue.