tdf#56408 Writer always breaks lines at text direction change

This change implements line breaking underflow for bidi portions.

Previously, Writer would always treat the start of a bidi portion as a
valid position to insert a line break. This caused incorrect line
breaking behavior in certain situations where LTR text is followed by
RTL text with no valid break position between, or vice-versa.

Now, Writer will correctly insert the break at the previous valid
position, rather than always breaking at the direction change.

Change-Id: If4627f4d65d2c44b65653c689ee00a2e0cb4456a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170154
Tested-by: Jenkins
Reviewed-by: Jonathan Clark <jonathan@libreoffice.org>

0 files changed, 0 insertions, 0 deletions