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prxnvt
c6c54c57e6
doesn't run it
python.set {cell?, code, output?: object|value} makes the cell (the
active cell by default) a Python cell, keeping its style and taking a
formula and its spill away. `output` is the return type Microsoft
documents for PY(): an Excel value (the default) or a Python object;
without it a Python cell keeps the one it had. The code must fit in
Excel's 8,192-character formula once written as PY(...), quotes doubled
and literals joined, so the command checks the encoded formula rather
than a character count. A table's header row refuses Python (it holds
the column's name, as Excel keeps formulas out of headers), and a locked
cell on a protected sheet refuses it through the usual protection check.
Nothing runs Python here. Unchanged code keeps its cached result and
value; new or changed code shows #BLOCKED!. One undo step takes the cell
back.
Sheet::clear_spill removes the spilled values inside a range with work
bounded by the values stored, not by the range's size.
In the interface, F2, a double click or the formula bar on a Python cell
edits its code, and a changed text is committed through python.set,
which keeps the return type; through cell.set it would have replaced the
Python cell with an ordinary cell holding the code as text. Typing over
a Python cell replaces it, as typing over a formula does, and committing
the code unchanged writes nothing. Deleting all the code clears the
cell through cell.set, as an empty entry clears any other cell; code
of spaces is still code.
Tests: the code and return type in cell.get, #BLOCKED! for new code,
cached results kept for unchanged code, the active-cell default, undo,
refused params (missing or non-text code, a bad cell, a bad return
type), the encoded limit at 8,079 and 8,080 characters and with doubled
quotes, a table header, a protected sheet, and a formula's spill taken
away. A UI test edits a Python cell's code with F2 and Enter, commits it
unchanged, and types over it; another clears a Python cell by deleting
all its code, keeps code of spaces, and undoes the clearing.