From: Nikolai Grigoriev (firstname.lastname@example.org)
Date: Tue Jan 13 2004 - 01:36:13 PST
> I think the no-height-specified behavior of XEP is a bug
> since there is content in the cells, which should require
> that the inline areas be rendered at the current line height.
XEP does not treat ZWSP as a content element: we consider
it an empty inline that does nothing except enabling line break
at the specified point. What you see are actually empty blocks.
I am not sure it is a bug; just because the semantics of the
character is to generate neither visible marks nor caret move,
a line made of only ZWSPs can be considered empty.
> The ZWSP is there to force XSL Formatter to preserve
> the blocks (with 2.5R5, XSL Formatter started discarding
> FOs that have empty content). The second and third cells
> have start borders to create the ruler effect.
I'd suggest using a space-filled leader technique:
<fo:block><fo:leader/></fo:block> is a typical
idiom for a block containing a single line. Another
interesting option to create a ruler is by using
instream SVG: this way, you actually draw the ruler,
not emulate it.
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