xmlgraphics-fop-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Manuel Mall ...@arcus.com.au>
Subject Re: zero width space
Date Wed, 02 Nov 2005 08:35:09 GMT
On Wed, 2 Nov 2005 02:04 pm, Manuel Mall wrote:
> On Wed, 2 Nov 2005 01:03 am, Chris Bowditch wrote:
> > Manuel Mall wrote:
> > > Currently if one puts a zero-width-space (U+200B) into an XSL-FO
> > > file (or specifies
> > > linefeed-treatment="treat-as-zero-width-space") it is rendered as
> > > a "missing character" in PDF. Is that correct, i.e. does this
> > > character have to exist in the font used or should the formatter
> > > or renderer simply remove this character? It is the second
> > > approach that both AntennaHouse and RenderX appear to have
> > > chosen.
> >
> > I recommend that no character is output for a ZWS. The whole
> > purpose of placing a ZWS into the input XSL-FO is to give layout an
> > extra break opportunity, without changing the appearance of the
> > generated document.
>
> That seems to be the consensus, that is consider ZWS for line
> breaking but then discard and don't give it to the renderers.
>
> Are there any other (unusual Unicode) characters which fall in the
> same category that is they influence layout decisions but should not
> be seen by the renderers?
>

Possible candidates are all characters of General Category 'Cf' (Other, 
Format) and may be 'Cc' (Other, Control)?

> > Chris
>
> Manuel
Manuel

Mime
View raw message