[jira] [Created] (FOP-2451) [PATCH] removal of invalid row-span attribute values in table-cells

["Gregor Berg (JIRA)" <ji...@apache.org>]

Gregor Berg created FOP-2451:
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             Summary: [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
             Fix For: 1.1


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).
This 



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