On 09.09.2015 01:43, Hans Hagen wrote:
> On 9/8/2015 9:04 PM, Wolfgang Schuster wrote:
>>> Hans Hagen <mailto:pragma@wxs.nl>
>>> 11. August 2015 11:48
>>>
>>>
>>> i have no clue what you're talking about
>> There is a bug in the reference mechanism between documents.
>
> not so much a bug but the current mechanism assumes a project/component
> struture
>

Hi,
I'm also struggeling with cross-referencing in a project/component 
layout. I attached a minimal example that resembles the layout I use.
If you compile xr-prod1 and xr-prod2 all cross-references are simply empty.

I looked at the lua code to see if I'm able to fix it myself and 
stumbled over the 'identify_inner(set,var,prefix,collected,derived)' 
function in strc-ref.lua (at around line 1396 in MKVI from 2015.09.04 
11:00). It look like identify_inner gets sometimes called with 'prefix' 
set to nil while 'derived' is also undefined (at 1493 and 1514). If I 
get the program flow right this looks suspicious, as it always retuns 
'false' from 'identify_inner'. If I add 'prefix = prefix or ""' to 
'identify_inner' I actually get references printed in the test case. 
However the links are not working and for the figure the section number 
is wrong.

Finally looking at the uncompressed PDF I can see that references are 
set not prefixed in xr-prod2.pdf (i.e. link to 'plain'), but are 
prefixed in xr-prod1.pdf (anchor is 'xr-comp1-1:plain').

Maybe these informations can help in resolving the issue. :)

> i'll see if i can catch the non structured variant
>
>> When you produce a PDF from the attached documents you can use the
>> hyperlinks to jump to the chapter page in the other document but no
>> information is printed because the information with the section number,
>> page number or title isn’t loaded (can be seen in the tracker
>> information in the log).
>>
>> Wolfgang