Gregor Berg updated FOP-2451:
    Attachment: 2015-02-20-row-span-fop-1_1v1.patch

> [PATCH] removal of invalid row-span attribute values in table-cells
> -------------------------------------------------------------------
>                 Key: FOP-2451
>                 URL: https://issues.apache.org/jira/browse/FOP-2451
>             Project: Fop
>          Issue Type: Bug
>          Components: fo/unqualified
>    Affects Versions: 1.1
>         Environment: tested on Win7 and Mac OS 10.9
>            Reporter: Gregor Berg
>              Labels: patch
>             Fix For: 1.1
>         Attachments: 2015-02-20-row-span-fop-1_1v1.patch
> Since I have to deal with tables edited in HTML editors which produce invalid 
> row-span/col-span attributes, I had to work around the row-span validation 
> error. Thus, this patch tries to recover from the validation error related to 
> a table-cell trying to span over more rows than its parent provides.
> Affected testcases: all four IllegalRowSpanTestCase (no error is thrown, 
> instead the table is created and can be checked for, e.g., number of rows)
> This is a first draft. If the efforts are deemed worthwhile, I would try to 
> port it to the trunk version.
> Recovery process in detail:
> As soon as the error condition is encountered, any remaining rows are checked 
> for PrimaryGridUnits (PGU) - if there are none, it can be assumed that only 
> empty GridUnits are present (created as fillers to handle the row-span of an 
> above PGU). Such rows are removed, the corresponding PGUs cope with this 
> removal by adjusting their pgu.rows and by decreasing the row-span of their 
> pgu.cell. 
> Finally, the last valid row encountered resets its borders corresponding to 
> its modified rowgroup (since this row may now be the last row of a table, its 
> borders are updated accordingly).

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