sw/qa/extras/layout/data/tdf56408-ltr.fodt          |  129 ++++++++++++++++++++
 sw/qa/extras/layout/data/tdf56408-no-underflow.fodt |  123 +++++++++++++++++++
 sw/qa/extras/layout/data/tdf56408-rtl.fodt          |  125 +++++++++++++++++++
 sw/qa/extras/layout/layout3.cxx                     |   44 ++++++
 sw/source/core/text/pormulti.cxx                    |   42 +++++-
 5 files changed, 457 insertions(+), 6 deletions(-)

New commits:
commit e110c64b8d260435b69fe71e40fc6c6e2b9b4e07
Author:     Jonathan Clark <jonat...@libreoffice.org>
AuthorDate: Fri Jul 5 15:19:23 2024 -0600
Commit:     Xisco Fauli <xiscofa...@libreoffice.org>
CommitDate: Wed Jul 10 22:13:12 2024 +0200

    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 <jonat...@libreoffice.org>
    (cherry picked from commit 6a54d08e6e52623f9769d17d7ea7390052cb275b)
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170120
    Reviewed-by: Xisco Fauli <xiscofa...@libreoffice.org>

diff --git a/sw/qa/extras/layout/data/tdf56408-ltr.fodt 
b/sw/qa/extras/layout/data/tdf56408-ltr.fodt
new file mode 100644
index 000000000000..5ce76412c080
--- /dev/null
+++ b/sw/qa/extras/layout/data/tdf56408-ltr.fodt
@@ -0,0 +1,129 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<office:document xmlns:css3t="http://www.w3.org/TR/css3-text/"; 
xmlns:grddl="http://www.w3.org/2003/g/data-view#"; 
xmlns:xhtml="http://www.w3.org/1999/xhtml"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; 
xmlns:xforms="http://www.w3.org/2002/xforms"; 
xmlns:dom="http://www.w3.org/2001/xml-events"; 
xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" 
xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" 
xmlns:math="http://www.w3.org/1998/Math/MathML"; 
xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" 
xmlns:ooo="http://openoffice.org/2004/office"; 
xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" 
xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" 
xmlns:ooow="http://openoffice.org/2004/writer"; 
xmlns:xlink="http://www.w3.org/1999/xlink"; 
xmlns:drawooo="http://openoffice.org/2010/draw"; 
xmlns:oooc="http://openoffice.org/2004/calc"; 
xmlns:dc="http://purl.org/dc/elements/1.1/"; xmlns:c
 alcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" 
xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" 
xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" 
xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" 
xmlns:tableooo="http://openoffice.org/2009/table"; 
xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" 
xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" 
xmlns:rpt="http://openoffice.org/2005/report"; 
xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0"
 xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" 
xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" 
xmlns:officeooo="http://openoffice.org/2009/office"; 
xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" 
xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" 
xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" 
xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:
 meta:1.0" 
xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0"
 office:version="1.3" office:mimetype="application/vnd.oasis.opendocument.text">
+ <office:meta><meta:initial-creator>Lior 
Kaplan</meta:initial-creator><meta:creation-date>2012-10-25T19:53:27</meta:creation-date><dc:date>2024-07-08T03:20:20.348137955</dc:date><meta:editing-duration>PT8M18S</meta:editing-duration><meta:editing-cycles>11</meta:editing-cycles><meta:generator>LibreOfficeDev/25.2.0.0.alpha0$Linux_X86_64
 
LibreOffice_project/9452bf222f57094e3bb100c6b0b9655d9f327737</meta:generator><meta:document-statistic
 meta:table-count="0" meta:image-count="0" meta:object-count="0" 
meta:page-count="1" meta:paragraph-count="1" meta:word-count="5" 
meta:character-count="45" 
meta:non-whitespace-character-count="41"/></office:meta>
+ <office:font-face-decls>
+  <style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" 
style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="FreeSans" svg:font-family="FreeSans" 
style:font-family-generic="swiss"/>
+  <style:font-face style:name="Liberation Serif" svg:font-family="'Liberation 
Serif'" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans" svg:font-family="'Noto Sans'" 
style:font-family-generic="swiss" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans Hebrew" svg:font-family="'Noto Sans 
Hebrew'" style:font-family-generic="swiss" style:font-pitch="variable"/>
+ </office:font-face-decls>
+ <office:styles>
+  <style:default-style style:family="graphic">
+   <style:graphic-properties svg:stroke-color="#808080" 
draw:fill-color="#cfe7f5" fo:wrap-option="no-wrap" draw:shadow-offset-x="8.5pt" 
draw:shadow-offset-y="8.5pt" draw:start-line-spacing-horizontal="8.02pt" 
draw:start-line-spacing-vertical="8.02pt" 
draw:end-line-spacing-horizontal="8.02pt" 
draw:end-line-spacing-vertical="8.02pt" style:writing-mode="lr-tb" 
style:flow-with-text="false"/>
+   <style:paragraph-properties style:text-autospace="ideograph-alpha" 
style:line-break="strict" loext:tab-stop-distance="0pt" 
style:font-independent-line-spacing="false">
+    <style:tab-stops/>
+   </style:paragraph-properties>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL"/>
+  </style:default-style>
+  <style:default-style style:family="paragraph">
+   <style:paragraph-properties fo:hyphenation-ladder-count="no-limit" 
fo:hyphenation-keep="auto" loext:hyphenation-keep-type="column" 
style:text-autospace="ideograph-alpha" style:punctuation-wrap="hanging" 
style:line-break="strict" style:tab-stop-distance="35.46pt" 
style:writing-mode="page"/>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL" fo:hyphenate="false" 
fo:hyphenation-remain-char-count="2" fo:hyphenation-push-char-count="2" 
loext:hyphenation-no-caps="false" loext:hyphenation-no-last-word="false" 
loext:hyphenation-word-char-count="no-limit" loext:hyphenation-zone="no-limit"/>
+  </style:default-style>
+  <style:default-style style:family="table">
+   <style:table-properties table:border-model="collapsing"/>
+  </style:default-style>
+  <style:default-style style:family="table-row">
+   <style:table-row-properties fo:keep-together="auto"/>
+  </style:default-style>
+  <style:style style:name="Standard" style:family="paragraph" 
style:class="text"/>
+  <text:outline-style style:name="Outline">
+   <text:outline-level-style text:level="1" loext:num-list-format="%1%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="21.6pt" fo:text-indent="-21.6pt" 
fo:margin-left="21.6pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="2" loext:num-list-format="%2%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="28.8pt" fo:text-indent="-28.8pt" 
fo:margin-left="28.8pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="3" loext:num-list-format="%3%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="36pt" fo:text-indent="-36pt" 
fo:margin-left="36pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="4" loext:num-list-format="%4%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="43.2pt" fo:text-indent="-43.2pt" 
fo:margin-left="43.2pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="5" loext:num-list-format="%5%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="50.4pt" fo:text-indent="-50.4pt" 
fo:margin-left="50.4pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="6" loext:num-list-format="%6%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="57.6pt" fo:text-indent="-57.6pt" 
fo:margin-left="57.6pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="7" loext:num-list-format="%7%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="64.8pt" fo:text-indent="-64.8pt" 
fo:margin-left="64.8pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="8" loext:num-list-format="%8%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="72pt" fo:text-indent="-72pt" 
fo:margin-left="72pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="9" loext:num-list-format="%9%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="79.2pt" fo:text-indent="-79.2pt" 
fo:margin-left="79.2pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="10" loext:num-list-format="%10%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="86.4pt" fo:text-indent="-86.4pt" 
fo:margin-left="86.4pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+  </text:outline-style>
+  <text:notes-configuration text:note-class="footnote" style:num-format="1" 
text:start-value="0" text:footnotes-position="page" 
text:start-numbering-at="document"/>
+  <text:notes-configuration text:note-class="endnote" style:num-format="i" 
text:start-value="0"/>
+  <text:linenumbering-configuration text:number-lines="false" 
text:offset="14.14pt" style:num-format="1" text:number-position="left" 
text:increment="5"/>
+  </office:styles>
+ <office:automatic-styles>
+  <style:style style:name="P1" style:family="paragraph" 
style:parent-style-name="Standard">
+   <style:paragraph-properties fo:text-align="start" 
style:justify-single-word="false" style:writing-mode="lr-tb"/>
+   <style:text-properties style:font-name="Noto Sans" fo:font-size="36pt" 
style:font-size-asian="36pt" style:font-name-complex="Noto Sans" 
style:font-size-complex="36pt"/>
+  </style:style>
+  <style:style style:name="T1" style:family="text">
+   <style:text-properties/>
+  </style:style>
+  <style:style style:name="T2" style:family="text">
+   <style:text-properties fo:color="#ff0000" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="T3" style:family="text">
+   <style:text-properties/>
+  </style:style>
+  <style:style style:name="T4" style:family="text">
+   <style:text-properties fo:color="#c9211e" loext:opacity="100%" 
fo:font-weight="normal" style:font-weight-asian="normal" 
style:font-name-complex="Noto Sans Hebrew" style:font-weight-complex="normal"/>
+  </style:style>
+  <style:page-layout style:name="pm1" style:page-usage="mirrored">
+   <style:page-layout-properties fo:page-width="595.3pt" 
fo:page-height="841.89pt" style:num-format="1" 
style:print-orientation="portrait" fo:margin-top="56.69pt" 
fo:margin-bottom="56.69pt" fo:margin-left="56.69pt" fo:margin-right="56.69pt" 
style:writing-mode="lr-tb" style:layout-grid-color="#c0c0c0" 
style:layout-grid-lines="20" style:layout-grid-base-height="20.01pt" 
style:layout-grid-ruby-height="10.01pt" style:layout-grid-mode="none" 
style:layout-grid-ruby-below="false" style:layout-grid-print="false" 
style:layout-grid-display="false" style:footnote-max-height="0pt" 
loext:margin-gutter="0pt">
+    <style:footnote-sep style:width="0.51pt" 
style:distance-before-sep="2.86pt" style:distance-after-sep="2.86pt" 
style:line-style="solid" style:adjustment="left" style:rel-width="25%" 
style:color="#000000"/>
+   </style:page-layout-properties>
+   <style:header-style/>
+   <style:footer-style/>
+  </style:page-layout>
+  <style:style style:name="dp1" style:family="drawing-page">
+   <style:drawing-page-properties draw:background-size="full"/>
+  </style:style>
+ </office:automatic-styles>
+ <office:master-styles>
+  <style:master-page style:name="Standard" style:page-layout-name="pm1" 
draw:style-name="dp1"/>
+ </office:master-styles>
+ <office:body>
+  <office:text>
+   <text:sequence-decls>
+    <text:sequence-decl text:display-outline-level="0" 
text:name="Illustration"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Table"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Text"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Drawing"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Figure"/>
+   </text:sequence-decls>
+   <text:p text:style-name="P1"><text:span text:style-name="T1">English 
English English</text:span> <text:span 
text:style-name="T1">(</text:span><text:span 
text:style-name="T2">((</text:span><text:span 
text:style-name="T3">(</text:span><text:span 
text:style-name="T4">עברית</text:span><text:span 
text:style-name="T3">)</text:span><text:span 
text:style-name="T2">))</text:span><text:span 
text:style-name="T1">)</text:span> <text:span 
text:style-name="T1">English</text:span></text:p>
+  </office:text>
+ </office:body>
+</office:document>
\ No newline at end of file
diff --git a/sw/qa/extras/layout/data/tdf56408-no-underflow.fodt 
b/sw/qa/extras/layout/data/tdf56408-no-underflow.fodt
new file mode 100644
index 000000000000..7ef7ebf605d5
--- /dev/null
+++ b/sw/qa/extras/layout/data/tdf56408-no-underflow.fodt
@@ -0,0 +1,123 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<office:document xmlns:css3t="http://www.w3.org/TR/css3-text/"; 
xmlns:grddl="http://www.w3.org/2003/g/data-view#"; 
xmlns:xhtml="http://www.w3.org/1999/xhtml"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; 
xmlns:xforms="http://www.w3.org/2002/xforms"; 
xmlns:dom="http://www.w3.org/2001/xml-events"; 
xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" 
xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" 
xmlns:math="http://www.w3.org/1998/Math/MathML"; 
xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" 
xmlns:ooo="http://openoffice.org/2004/office"; 
xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" 
xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" 
xmlns:ooow="http://openoffice.org/2004/writer"; 
xmlns:xlink="http://www.w3.org/1999/xlink"; 
xmlns:drawooo="http://openoffice.org/2010/draw"; 
xmlns:oooc="http://openoffice.org/2004/calc"; 
xmlns:dc="http://purl.org/dc/elements/1.1/"; xmlns:c
 alcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" 
xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" 
xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" 
xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" 
xmlns:tableooo="http://openoffice.org/2009/table"; 
xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" 
xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" 
xmlns:rpt="http://openoffice.org/2005/report"; 
xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0"
 xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" 
xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" 
xmlns:officeooo="http://openoffice.org/2009/office"; 
xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" 
xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" 
xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" 
xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:
 meta:1.0" 
xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0"
 office:version="1.3" office:mimetype="application/vnd.oasis.opendocument.text">
+ <office:meta><meta:initial-creator>Lior 
Kaplan</meta:initial-creator><meta:creation-date>2012-10-25T19:53:27</meta:creation-date><dc:date>2024-07-08T03:21:06.304537073</dc:date><meta:editing-duration>PT8M42S</meta:editing-duration><meta:editing-cycles>11</meta:editing-cycles><meta:generator>LibreOfficeDev/25.2.0.0.alpha0$Linux_X86_64
 
LibreOffice_project/9452bf222f57094e3bb100c6b0b9655d9f327737</meta:generator><meta:document-statistic
 meta:table-count="0" meta:image-count="0" meta:object-count="0" 
meta:page-count="1" meta:paragraph-count="1" meta:word-count="5" 
meta:character-count="37" 
meta:non-whitespace-character-count="33"/></office:meta>
+ <office:font-face-decls>
+  <style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" 
style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="FreeSans" svg:font-family="FreeSans" 
style:font-family-generic="swiss"/>
+  <style:font-face style:name="Liberation Serif" svg:font-family="'Liberation 
Serif'" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans" svg:font-family="'Noto Sans'" 
style:font-adornments="Bold" style:font-family-generic="swiss" 
style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans Hebrew" svg:font-family="'Noto Sans 
Hebrew'" style:font-adornments="Bold" style:font-family-generic="swiss" 
style:font-pitch="variable"/>
+ </office:font-face-decls>
+ <office:styles>
+  <style:default-style style:family="graphic">
+   <style:graphic-properties svg:stroke-color="#808080" 
draw:fill-color="#cfe7f5" fo:wrap-option="no-wrap" draw:shadow-offset-x="8.5pt" 
draw:shadow-offset-y="8.5pt" draw:start-line-spacing-horizontal="8.02pt" 
draw:start-line-spacing-vertical="8.02pt" 
draw:end-line-spacing-horizontal="8.02pt" 
draw:end-line-spacing-vertical="8.02pt" style:writing-mode="lr-tb" 
style:flow-with-text="false"/>
+   <style:paragraph-properties style:text-autospace="ideograph-alpha" 
style:line-break="strict" loext:tab-stop-distance="0pt" 
style:writing-mode="lr-tb" style:font-independent-line-spacing="false">
+    <style:tab-stops/>
+   </style:paragraph-properties>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL"/>
+  </style:default-style>
+  <style:default-style style:family="paragraph">
+   <style:paragraph-properties fo:hyphenation-ladder-count="no-limit" 
fo:hyphenation-keep="auto" loext:hyphenation-keep-type="column" 
style:text-autospace="ideograph-alpha" style:punctuation-wrap="hanging" 
style:line-break="strict" style:tab-stop-distance="35.46pt" 
style:writing-mode="page"/>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL" fo:hyphenate="false" 
fo:hyphenation-remain-char-count="2" fo:hyphenation-push-char-count="2" 
loext:hyphenation-no-caps="false" loext:hyphenation-no-last-word="false" 
loext:hyphenation-word-char-count="no-limit" loext:hyphenation-zone="no-limit"/>
+  </style:default-style>
+  <style:default-style style:family="table">
+   <style:table-properties table:border-model="collapsing"/>
+  </style:default-style>
+  <style:default-style style:family="table-row">
+   <style:table-row-properties fo:keep-together="auto"/>
+  </style:default-style>
+  <style:style style:name="Standard" style:family="paragraph" 
style:class="text"/>
+  <text:outline-style style:name="Outline">
+   <text:outline-level-style text:level="1" loext:num-list-format="%1%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="21.6pt" fo:text-indent="-21.6pt" 
fo:margin-left="21.6pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="2" loext:num-list-format="%2%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="28.8pt" fo:text-indent="-28.8pt" 
fo:margin-left="28.8pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="3" loext:num-list-format="%3%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="36pt" fo:text-indent="-36pt" 
fo:margin-left="36pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="4" loext:num-list-format="%4%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="43.2pt" fo:text-indent="-43.2pt" 
fo:margin-left="43.2pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="5" loext:num-list-format="%5%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="50.4pt" fo:text-indent="-50.4pt" 
fo:margin-left="50.4pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="6" loext:num-list-format="%6%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="57.6pt" fo:text-indent="-57.6pt" 
fo:margin-left="57.6pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="7" loext:num-list-format="%7%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="64.8pt" fo:text-indent="-64.8pt" 
fo:margin-left="64.8pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="8" loext:num-list-format="%8%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="72pt" fo:text-indent="-72pt" 
fo:margin-left="72pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="9" loext:num-list-format="%9%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="79.2pt" fo:text-indent="-79.2pt" 
fo:margin-left="79.2pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="10" loext:num-list-format="%10%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="86.4pt" fo:text-indent="-86.4pt" 
fo:margin-left="86.4pt"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+  </text:outline-style>
+  <text:notes-configuration text:note-class="footnote" style:num-format="1" 
text:start-value="0" text:footnotes-position="page" 
text:start-numbering-at="document"/>
+  <text:notes-configuration text:note-class="endnote" style:num-format="i" 
text:start-value="0"/>
+  <text:linenumbering-configuration text:number-lines="false" 
text:offset="14.14pt" style:num-format="1" text:number-position="left" 
text:increment="5"/>
+  </office:styles>
+ <office:automatic-styles>
+  <style:style style:name="P1" style:family="paragraph" 
style:parent-style-name="Standard">
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+   <style:text-properties style:font-name="Noto Sans" fo:font-size="36pt" 
style:font-size-asian="36pt" style:font-name-complex="Noto Sans" 
style:font-size-complex="36pt"/>
+  </style:style>
+  <style:style style:name="T1" style:family="text">
+   <style:text-properties/>
+  </style:style>
+  <style:style style:name="T2" style:family="text">
+   <style:text-properties style:font-name-complex="Noto Sans Hebrew"/>
+  </style:style>
+  <style:page-layout style:name="pm1" style:page-usage="mirrored">
+   <style:page-layout-properties fo:page-width="595.3pt" 
fo:page-height="841.89pt" style:num-format="1" 
style:print-orientation="portrait" fo:margin-top="56.69pt" 
fo:margin-bottom="56.69pt" fo:margin-left="56.69pt" fo:margin-right="56.69pt" 
style:writing-mode="lr-tb" style:layout-grid-color="#c0c0c0" 
style:layout-grid-lines="20" style:layout-grid-base-height="20.01pt" 
style:layout-grid-ruby-height="10.01pt" style:layout-grid-mode="none" 
style:layout-grid-ruby-below="false" style:layout-grid-print="false" 
style:layout-grid-display="false" style:footnote-max-height="0pt" 
loext:margin-gutter="0pt">
+    <style:footnote-sep style:width="0.51pt" 
style:distance-before-sep="2.86pt" style:distance-after-sep="2.86pt" 
style:line-style="solid" style:adjustment="left" style:rel-width="25%" 
style:color="#000000"/>
+   </style:page-layout-properties>
+   <style:header-style/>
+   <style:footer-style/>
+  </style:page-layout>
+  <style:style style:name="dp1" style:family="drawing-page">
+   <style:drawing-page-properties draw:background-size="full"/>
+  </style:style>
+ </office:automatic-styles>
+ <office:master-styles>
+  <style:master-page style:name="Standard" style:page-layout-name="pm1" 
draw:style-name="dp1"/>
+ </office:master-styles>
+ <office:body>
+  <office:text>
+   <text:sequence-decls>
+    <text:sequence-decl text:display-outline-level="0" 
text:name="Illustration"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Table"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Text"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Drawing"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Figure"/>
+   </text:sequence-decls>
+   <text:p text:style-name="P1">English English Englis<text:span 
text:style-name="T1">h</text:span> <text:span 
text:style-name="T2">עברית</text:span> English</text:p>
+  </office:text>
+ </office:body>
+</office:document>
\ No newline at end of file
diff --git a/sw/qa/extras/layout/data/tdf56408-rtl.fodt 
b/sw/qa/extras/layout/data/tdf56408-rtl.fodt
new file mode 100644
index 000000000000..e68774befc5f
--- /dev/null
+++ b/sw/qa/extras/layout/data/tdf56408-rtl.fodt
@@ -0,0 +1,125 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<office:document xmlns:css3t="http://www.w3.org/TR/css3-text/"; 
xmlns:grddl="http://www.w3.org/2003/g/data-view#"; 
xmlns:xhtml="http://www.w3.org/1999/xhtml"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; 
xmlns:xforms="http://www.w3.org/2002/xforms"; 
xmlns:dom="http://www.w3.org/2001/xml-events"; 
xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" 
xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" 
xmlns:math="http://www.w3.org/1998/Math/MathML"; 
xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" 
xmlns:ooo="http://openoffice.org/2004/office"; 
xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" 
xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" 
xmlns:ooow="http://openoffice.org/2004/writer"; 
xmlns:xlink="http://www.w3.org/1999/xlink"; 
xmlns:drawooo="http://openoffice.org/2010/draw"; 
xmlns:oooc="http://openoffice.org/2004/calc"; 
xmlns:dc="http://purl.org/dc/elements/1.1/"; xmlns:c
 alcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" 
xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" 
xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" 
xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" 
xmlns:tableooo="http://openoffice.org/2009/table"; 
xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" 
xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" 
xmlns:rpt="http://openoffice.org/2005/report"; 
xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0"
 xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" 
xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" 
xmlns:officeooo="http://openoffice.org/2009/office"; 
xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" 
xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" 
xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" 
xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:
 meta:1.0" 
xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0"
 office:version="1.3" office:mimetype="application/vnd.oasis.opendocument.text">
+ <office:meta><meta:initial-creator>Lior 
Kaplan</meta:initial-creator><meta:creation-date>2012-10-25T19:53:27</meta:creation-date><dc:date>2024-07-08T03:38:49.126947456</dc:date><meta:editing-duration>PT11M10S</meta:editing-duration><meta:editing-cycles>13</meta:editing-cycles><meta:generator>LibreOffice/24.2.4.2$Linux_X86_64
 
LibreOffice_project/d29029bfb700ea4a272da1366c5f5e7c14e351b5</meta:generator><meta:document-statistic
 meta:table-count="0" meta:image-count="0" meta:object-count="0" 
meta:page-count="1" meta:paragraph-count="1" meta:word-count="5" 
meta:character-count="39" 
meta:non-whitespace-character-count="35"/></office:meta>
+ <office:font-face-decls>
+  <style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" 
style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="FreeSans" svg:font-family="FreeSans" 
style:font-family-generic="swiss"/>
+  <style:font-face style:name="Liberation Serif" svg:font-family="'Liberation 
Serif'" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans Hebrew" svg:font-family="'Noto Sans 
Hebrew'" style:font-family-generic="swiss" style:font-pitch="variable"/>
+ </office:font-face-decls>
+ <office:styles>
+  <style:default-style style:family="graphic">
+   <style:graphic-properties svg:stroke-color="#808080" 
draw:fill-color="#cfe7f5" fo:wrap-option="no-wrap" 
draw:shadow-offset-x="0.1181in" draw:shadow-offset-y="0.1181in" 
draw:start-line-spacing-horizontal="0.1114in" 
draw:start-line-spacing-vertical="0.1114in" 
draw:end-line-spacing-horizontal="0.1114in" 
draw:end-line-spacing-vertical="0.1114in" style:writing-mode="lr-tb" 
style:flow-with-text="false"/>
+   <style:paragraph-properties style:text-autospace="ideograph-alpha" 
style:line-break="strict" loext:tab-stop-distance="0in" 
style:writing-mode="lr-tb" style:font-independent-line-spacing="false">
+    <style:tab-stops/>
+   </style:paragraph-properties>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL"/>
+  </style:default-style>
+  <style:default-style style:family="paragraph">
+   <style:paragraph-properties fo:hyphenation-ladder-count="no-limit" 
style:text-autospace="ideograph-alpha" style:punctuation-wrap="hanging" 
style:line-break="strict" style:tab-stop-distance="0.4925in" 
style:writing-mode="page"/>
+   <style:text-properties style:use-window-font-color="true" 
loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="12pt" 
fo:language="en" fo:country="US" style:letter-kerning="true" 
style:font-name-asian="DejaVu Sans" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="FreeSans" style:font-size-complex="12pt" 
style:language-complex="he" style:country-complex="IL" fo:hyphenate="false" 
fo:hyphenation-remain-char-count="2" fo:hyphenation-push-char-count="2" 
loext:hyphenation-no-caps="false" loext:hyphenation-no-last-word="false" 
loext:hyphenation-word-char-count="no-limit" loext:hyphenation-zone="no-limit"/>
+  </style:default-style>
+  <style:default-style style:family="table">
+   <style:table-properties table:border-model="collapsing"/>
+  </style:default-style>
+  <style:default-style style:family="table-row">
+   <style:table-row-properties fo:keep-together="auto"/>
+  </style:default-style>
+  <style:style style:name="Standard" style:family="paragraph" 
style:class="text"/>
+  <text:outline-style style:name="Outline">
+   <text:outline-level-style text:level="1" loext:num-list-format="%1%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.3in" fo:text-indent="-0.3in" 
fo:margin-left="0.3in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="2" loext:num-list-format="%2%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.4in" fo:text-indent="-0.4in" 
fo:margin-left="0.4in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="3" loext:num-list-format="%3%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.5in" fo:text-indent="-0.5in" 
fo:margin-left="0.5in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="4" loext:num-list-format="%4%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.6in" fo:text-indent="-0.6in" 
fo:margin-left="0.6in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="5" loext:num-list-format="%5%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.7in" fo:text-indent="-0.7in" 
fo:margin-left="0.7in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="6" loext:num-list-format="%6%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.8in" fo:text-indent="-0.8in" 
fo:margin-left="0.8in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="7" loext:num-list-format="%7%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="0.9in" fo:text-indent="-0.9in" 
fo:margin-left="0.9in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="8" loext:num-list-format="%8%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="1in" fo:text-indent="-1in" fo:margin-left="1in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="9" loext:num-list-format="%9%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="1.1in" fo:text-indent="-1.1in" 
fo:margin-left="1.1in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+   <text:outline-level-style text:level="10" loext:num-list-format="%10%" 
style:num-format="">
+    <style:list-level-properties 
text:list-level-position-and-space-mode="label-alignment">
+     <style:list-level-label-alignment text:label-followed-by="listtab" 
text:list-tab-stop-position="1.2in" fo:text-indent="-1.2in" 
fo:margin-left="1.2in"/>
+    </style:list-level-properties>
+   </text:outline-level-style>
+  </text:outline-style>
+  <text:notes-configuration text:note-class="footnote" style:num-format="1" 
text:start-value="0" text:footnotes-position="page" 
text:start-numbering-at="document"/>
+  <text:notes-configuration text:note-class="endnote" style:num-format="i" 
text:start-value="0"/>
+  <text:linenumbering-configuration text:number-lines="false" 
text:offset="0.1965in" style:num-format="1" text:number-position="left" 
text:increment="5"/>
+  </office:styles>
+ <office:automatic-styles>
+  <style:style style:name="P1" style:family="paragraph" 
style:parent-style-name="Standard">
+   <style:paragraph-properties fo:text-align="end" 
style:justify-single-word="false" style:writing-mode="rl-tb"/>
+   <style:text-properties style:font-name="Noto Sans Hebrew" 
fo:font-size="36pt" style:font-size-asian="36pt" style:font-name-complex="Noto 
Sans Hebrew" style:font-size-complex="36pt"/>
+  </style:style>
+  <style:style style:name="T1" style:family="text">
+   <style:text-properties/>
+  </style:style>
+  <style:style style:name="T2" style:family="text">
+   <style:text-properties fo:color="#ff0000" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="T3" style:family="text">
+   <style:text-properties fo:color="#bf0041" loext:opacity="100%"/>
+  </style:style>
+  <style:page-layout style:name="pm1" style:page-usage="mirrored">
+   <style:page-layout-properties fo:page-width="8.2681in" 
fo:page-height="11.6929in" style:num-format="1" 
style:print-orientation="portrait" fo:margin-top="0.7874in" 
fo:margin-bottom="0.7874in" fo:margin-left="0.7874in" 
fo:margin-right="0.7874in" style:writing-mode="lr-tb" 
style:layout-grid-color="#c0c0c0" style:layout-grid-lines="20" 
style:layout-grid-base-height="0.278in" style:layout-grid-ruby-height="0.139in" 
style:layout-grid-mode="none" style:layout-grid-ruby-below="false" 
style:layout-grid-print="false" style:layout-grid-display="false" 
style:footnote-max-height="0in" loext:margin-gutter="0in">
+    <style:footnote-sep style:width="0.0071in" 
style:distance-before-sep="0.0398in" style:distance-after-sep="0.0398in" 
style:line-style="solid" style:adjustment="left" style:rel-width="25%" 
style:color="#000000"/>
+   </style:page-layout-properties>
+   <style:header-style/>
+   <style:footer-style/>
+  </style:page-layout>
+  <style:style style:name="dp1" style:family="drawing-page">
+   <style:drawing-page-properties draw:background-size="full"/>
+  </style:style>
+ </office:automatic-styles>
+ <office:master-styles>
+  <style:master-page style:name="Standard" style:page-layout-name="pm1" 
draw:style-name="dp1"/>
+ </office:master-styles>
+ <office:body>
+  <office:text>
+   <text:sequence-decls>
+    <text:sequence-decl text:display-outline-level="0" 
text:name="Illustration"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Table"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Text"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Drawing"/>
+    <text:sequence-decl text:display-outline-level="0" text:name="Figure"/>
+   </text:sequence-decls>
+   <text:p text:style-name="P1">עברית עברית עברית <text:span 
text:style-name="T1">(</text:span><text:span 
text:style-name="T2">((</text:span><text:span 
text:style-name="T1">(</text:span><text:span 
text:style-name="T3">English</text:span><text:span 
text:style-name="T1">)</text:span><text:span 
text:style-name="T2">))</text:span><text:span text:style-name="T1">) 
עברית</text:span></text:p>
+  </office:text>
+ </office:body>
+</office:document>
\ No newline at end of file
diff --git a/sw/qa/extras/layout/layout3.cxx b/sw/qa/extras/layout/layout3.cxx
index 73f93c0303a8..e89f33466ad6 100644
--- a/sw/qa/extras/layout/layout3.cxx
+++ b/sw/qa/extras/layout/layout3.cxx
@@ -3037,6 +3037,50 @@ CPPUNIT_TEST_FIXTURE(SwLayoutWriter3, 
TestTdf104209VertRTL)
                 "portion"_ostr, u"B"_ustr);
 }
 
+CPPUNIT_TEST_FIXTURE(SwLayoutWriter3, TestTdf56408LTR)
+{
+    // Verify that line breaking a first bidi portion correctly underflows in 
LTR text
+    createSwDoc("tdf56408-ltr.fodt");
+    auto pXmlDoc = parseLayoutDump();
+
+    assertXPath(pXmlDoc, "//page"_ostr, 1);
+
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[1]"_ostr, "portion"_ostr,
+                u"English English English "_ustr);
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[2]"_ostr, "portion"_ostr,
+                u"((((עברית)))) English"_ustr);
+}
+
+CPPUNIT_TEST_FIXTURE(SwLayoutWriter3, TestTdf56408RTL)
+{
+    // Verify that line breaking a first bidi portion correctly underflows in 
RTL text
+    createSwDoc("tdf56408-rtl.fodt");
+    auto pXmlDoc = parseLayoutDump();
+
+    assertXPath(pXmlDoc, "//page"_ostr, 1);
+
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[1]"_ostr, "portion"_ostr,
+                u"עברית עברית עברית "_ustr);
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[2]"_ostr, "portion"_ostr,
+                u"((((English)))) עברית"_ustr);
+}
+
+CPPUNIT_TEST_FIXTURE(SwLayoutWriter3, TestTdf56408NoUnderflow)
+{
+    // The fix for tdf#56408 introduced a change to line breaking between text 
with
+    // direction changes. This test verifies behavior in the trivial case, 
when a
+    // break opportunity exists at the direction change boundary.
+    createSwDoc("tdf56408-no-underflow.fodt");
+    auto pXmlDoc = parseLayoutDump();
+
+    assertXPath(pXmlDoc, "//page"_ostr, 1);
+
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[1]"_ostr, "portion"_ostr,
+                u"English English English "_ustr);
+    assertXPath(pXmlDoc, 
"/root/page/body/txt/SwParaPortion/SwLineLayout[2]"_ostr, "portion"_ostr,
+                u"עברית English"_ustr);
+}
+
 } // end of anonymous namespace
 
 CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/sw/source/core/text/pormulti.cxx b/sw/source/core/text/pormulti.cxx
index df352e6aa785..e22ad78d44a1 100644
--- a/sw/source/core/text/pormulti.cxx
+++ b/sw/source/core/text/pormulti.cxx
@@ -32,6 +32,9 @@
 #include <layfrm.hxx>
 #include <SwPortionHandler.hxx>
 #include <EnhancedPDFExportHelper.hxx>
+#include <com/sun/star/i18n/BreakType.hpp>
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <breakit.hxx>
 #include "pormulti.hxx"
 #include "inftxt.hxx"
 #include "itrpaint.hxx"
@@ -1919,8 +1922,8 @@ static bool lcl_ExtractFieldFollow( SwLineLayout* pLine, 
SwLinePortion* &rpField
 // If a multi portion completely has to go to the
 // next line, this function is called to truncate
 // the rest of the remaining multi portion
-static void lcl_TruncateMultiPortion( SwMultiPortion& rMulti, 
SwTextFormatInfo& rInf,
-           TextFrameIndex const nStartIdx)
+static void lcl_TruncateMultiPortion(SwMultiPortion& rMulti, SwTextFormatInfo& 
rInf,
+                                     TextFrameIndex const nStartIdx, bool 
bIsBidiPortion)
 {
     rMulti.GetRoot().Truncate();
     rMulti.GetRoot().SetLen(TextFrameIndex(0));
@@ -1935,6 +1938,31 @@ static void lcl_TruncateMultiPortion( SwMultiPortion& 
rMulti, SwTextFormatInfo&
     rMulti.Width( 0 );
     rMulti.SetLen(TextFrameIndex(0));
     rInf.SetIdx( nStartIdx );
+
+    if (bIsBidiPortion)
+    {
+        // The truncated portion is a bidi portion. Bidi portions contain 
ordinary text, and may
+        // potentially underflow in the case that none of the text fits on the 
current line.
+        if (auto* pPrevTextPor = dynamic_cast<SwTextPortion*>(rInf.GetLast());
+            pPrevTextPor != nullptr)
+        {
+            // Check if the start of the bidi portion is a valid break. In 
that case, truncating
+            // the multi portion is sufficient.
+            css::i18n::LineBreakHyphenationOptions aHyphOptions;
+            css::i18n::LineBreakUserOptions aUserOptions;
+            css::lang::Locale aLocale;
+            auto aResult = g_pBreakIt->GetBreakIter()->getLineBreak(
+                rInf.GetText(), sal_Int32(nStartIdx), aLocale, 
sal_Int32(rInf.GetLineStart()),
+                aHyphOptions, aUserOptions);
+
+            if (aResult.breakIndex != sal_Int32{ nStartIdx })
+            {
+                // The start of the bidi portion is not a valid break. 
Instead, a break should be
+                // inserted into a previous text portion on this line.
+                rInf.SetUnderflow(pPrevTextPor);
+            }
+        }
+    }
 }
 
 // Manages the formatting of a SwMultiPortion. External, for the calling
@@ -2345,7 +2373,7 @@ bool SwTextFormatter::BuildMultiPortion( SwTextFormatInfo 
&rInf,
             else
             {
                 // we try to keep our ruby portion together
-                lcl_TruncateMultiPortion( rMulti, rInf, nStartIdx );
+                lcl_TruncateMultiPortion(rMulti, rInf, nStartIdx, 
/*bIsBidiPortion=*/false);
                 pTmp = nullptr;
                 // A follow field portion may still be waiting. If nobody wants
                 // it, we delete it.
@@ -2355,7 +2383,7 @@ bool SwTextFormatter::BuildMultiPortion( SwTextFormatInfo 
&rInf,
         else if( rMulti.HasRotation() )
         {
             // we try to keep our rotated portion together
-            lcl_TruncateMultiPortion( rMulti, rInf, nStartIdx );
+            lcl_TruncateMultiPortion(rMulti, rInf, nStartIdx, 
/*bIsBidiPortion=*/false);
             pTmp = new SwRotatedPortion( nMultiLen + rInf.GetIdx(),
                                          rMulti.GetDirection() );
         }
@@ -2363,8 +2391,10 @@ bool SwTextFormatter::BuildMultiPortion( 
SwTextFormatInfo &rInf,
         // a new SwBidiPortion, this would cause a memory leak
         else if( rMulti.IsBidi() && ! m_pMulti )
         {
-            if ( ! rMulti.GetLen() )
-                lcl_TruncateMultiPortion( rMulti, rInf, nStartIdx );
+            if (!rMulti.GetLen())
+            {
+                lcl_TruncateMultiPortion(rMulti, rInf, nStartIdx, 
/*bIsBidiPortion=*/true);
+            }
 
             // If there is a HolePortion at the end of the bidi portion,
             // it has to be moved behind the bidi portion. Otherwise

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