The OOXML spec writes =@(expr) as =_xlfn.SINGLE(expr). Calc
emitted the bare @ glyph on save and dropped the wrapper on
load, so =@(F3:F5+0) fell back to a non-array context after a
round trip and lost the authored value.
Map "_xlfn.SINGLE" to ocSingleValue in the OOXML symbol
table. The regular exporter walk now spells ocSingleValue as
"_xlfn.SINGLE" and the import compiler recognises the
wrapper, so a parenthesised operand round-trips with no
further work. A small exporter branch wraps bare and
function-call operands in the wrapper's own parentheses.
OOXML files in the wild put the @ operand inside a redundant
parenthesis pair, _xlfn.SINGLE((expr)). A post-compile pass
on import drops the inner pair so the cell reads back as
=@(expr). The helper takes a trigger-opcode list for reuse.
testSingleOperatorXlsxRoundTrip covers the export path,
testIntersectionOperatorXlsxRoundTrip covers the import strip
from a fixture file.
Signed-off-by: Tomaž Vajngerl <tomaz.vajngerl@collabora.co.uk>
Change-Id: I2648da125945295fd8548842aba9c82978d96aa9
Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/5573
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Tomaž Vajngerl <tomaz.vajngerl@collabora.com>
(cherry picked from commit 5ac9db1f563bbde01f9e24fc9bbb8c3599eb0c06)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/207789
Tested-by: Jenkins
Tested-by: Xisco Fauli <xiscofauli@libreoffice.org>
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>