bug#9461: 24.0.50; Weird behaviour in "show-parent-mode"

[Stefan Monnier]

>> Would it be possible to use another patch which shares code between
>> blink-paren and show-paren?

> In theory, `blink-paren' and `show-paren' both do a similar job of
> displaying the opposite side of a balanced expression.  But looking at code
> in `blink-paren' and `show-paren', I see absolutely nothing in common.

> The first small piece of common code will be counting an even number of
> quoting characters, but even this part will differ significantly
> because unlike `blink-paren', `show-paren' needs to work in both
> directions: backwards and forwards.

Oh, well,


        Stefan