correct "merge from rows"

[code4101]

https://histudy.yuque.com/docs/share/2a1c0ca0-56bc-4735-ac0e-e2f142f4fb9f?#

[martsberger]

It looks like the error might have been here. What happens if we do column=column + colspan - 1 on this line instead of the other change?

[code4101]

column=column + colspan - 1 can't solve this error:

from tablepyxl import tablepyxl

table = """<table>
  <tr>
    <th colspan="2" rowspan="2">a1</th>
    <th colspan="2">c1</th>
  </tr>
  <tr>
    <td rowspan="2">c2</td>
    <td>d2</td>
  </tr>
  <tr>
    <td>a3</td>
    <td>b3</td>
    <td>d3</td>
  </tr>
</table>"""

tablepyxl.document_to_xl(table, "test.xlsx")
# AttributeError: 'MergedCell' object has no attribute 'value'

we can add this code before cell = worksheet.cell(row=row, column=column) to analyse this bug:

print(f'We think we are in row={row}, column={column},',
      f'And now actually in {table_cell.value}, ', table_cell.element.attrib)

We think we are in row=1, column=1, And now actually in a1,  {'colspan': '2', 'rowspan': '2'}
We think we are in row=1, column=3, And now actually in c1,  {'colspan': '2'}
We think we are in row=2, column=1, And now actually in c2,  {'rowspan': '2'}
raise AttributeError: 'MergedCell' object has no attribute 'value'

In row=2, we think we are start from column=1, but actually A2 and B2 were already builded from "a1", so I judge MergedCell to skip them and shift to the actually column=3.