[Issue 117672] Opening XLSX fails when the Relationship "Target" attribute in _rels/.rels has superfluous slashes

[bu...@apache.org]

https://bz.apache.org/ooo/show_bug.cgi?id=117672

damjan@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Opening XLSX fails when the |Opening XLSX fails when the
                   |Relationship "Target"       |Relationship "Target"
                   |attribute in _rels/.rels    |attribute in _rels/.rels
                   |has a leading slash         |has superfluous slashes

--- Comment #5 from damjan@apache.org ---
Testing against Excel and LO however shows they go even further than allowing
one leading slash in the _rels/.rels Relationship "Target" attribute and the
[Content Types].xml Override "PartName" attribute.

<Relationship Target="///xl/workbook.xml" ...>
<Override PartName="/xl/workbook.xml" ...>
Excel and LO open successfully, no warnings.

<Relationship Target="///xl///workbook.xml" ...>
<Override PartName="/xl/workbook.xml" ...>
Excel open successfully, no warnings. LO offers to repair the file.

<Relationship Target="///xl///workbook.xml" ...>
<Override PartName="//xl/workbook.xml" ...>
Both Excel and LO offer to repair the file.

So at least in Relationship "Target" we should allow multiple leading slashes,
and multiple slashes anywhere else where one slash would be ok. The Override
element's "PartName" attribute is apparently stricter and we can get away with
doing less compatibility fixes there.

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