CALCULATION_REGEXP_CELLREF is not sufficiently robust.
It treats some perfectly legal defined names, e.g. A1A, as cell refs.
When the Xlsx Writer tries to save a worksheet which uses such a name
in a formula in a cell, it throws an exception.
The new DefinedNameConfusedForCellTest is a simple demonstration.
The Regexp has been changed to ensure the name starts on a Word boundary,
and to make sure it is not followed by a word character or period.
This fixes the problem, and does not appear to cause any regression
problems in the test suite.
Closes#1263
Some auto generated xlsx files are using other names as workbook than "workbook.xml".
This is fixed by supporting names of workbooks by regex `/workbook.*\.xml/`.
Closes#1183
Fix: Return #NUM! if values and dates contain a different number of values
Fix: Return #NUM! if there is not at least one positive cash flow and one negative cash flow
Fix: Return #NUM! if any number in dates precedes the starting date
Fix: Return #NUM! if a result that works cannot be found after max iteration tries
Fix: Correct DocBlocks for XIRR & XNPV
Add: Validate XIRR with unit tests
Closes#1177
In cells with formulas containing conditions like `=IFSUM(A1:A3;"";B1:B3)`
to sum cells from range A1:A3 with empty value in range B1:B3, the function
`Functions::ifCondition()` create in this case the code `=""""` instead of
`=""`, so it didn't work.
Closes#1206
* Fixes issue #948 by including a setUseEmbeddedCSS(false) method. Doesn't change current behaviour if not set
* Removes a empty line in src/PhpSpreadsheet/Writer/Html.php that fails a test
* Call garbage collector after removing a column
Otherwise callers of getHighestColumn get stale values
* Update changelog
* Fix remove a column out of range removes the last column
Given:
+---+---+
| A | B |
+---+---+
Attempting to remove 'D', should not alter the worksheet
* Avoid side effects when trying to remove more columns than exists
Owen Leibman