Re: Syntactical question [was: Re: Call for help with bar lines]

[David Kastrup]

Marc Hohl <address@hidden> writes:

> Am 27.09.2012 09:10, schrieb David Kastrup:
>>
>>> or finally defining an "empty stencil" glyph:
>>>
>>> \defineBarLine "|" "|" "x" "|"
>>>
>>> (note that "" is not the same as "x", as Harm explained; "" draws a
>>> stencil with
>>> zero width, "X" would draw *no* stencil at all).
>> What do we need a zero width stencil for?
> \bar "" inserts an empty stencil, so the padding around the
> (invisible) bar line is preserved.

Yes, I understood that.  But what do we need that for?

-- 
David Kastrup