editeng/source/editeng/impedit2.cxx     |    2 
 sw/qa/extras/layout/data/tdf167541.fodt |  131 ++++++++++++++++++++++++++++++++
 sw/qa/extras/layout/layout5.cxx         |    6 +
 3 files changed, 138 insertions(+), 1 deletion(-)

New commits:
commit f636757533cfca575820c919153aa5c9a02abcae
Author:     Jonathan Clark <jonat...@libreoffice.org>
AuthorDate: Thu Jul 17 11:25:50 2025 -0600
Commit:     Jonathan Clark <jonat...@libreoffice.org>
CommitDate: Thu Jul 17 22:27:44 2025 +0200

    tdf#167541 sw: Fix hang laying out textboxes with empty script hints
    
    Certain DOC files may contain zero-length sprmCIdctHint runs.
    Previously, the EE implementation of style:script-type was not robust
    against such zero-length spans and would loop infinitely upon
    encountering one.
    
    Change-Id: I7178a89b2688956482ceb790dd05523034019e2e
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/188020
    Tested-by: Jenkins
    Reviewed-by: Jonathan Clark <jonat...@libreoffice.org>

diff --git a/editeng/source/editeng/impedit2.cxx 
b/editeng/source/editeng/impedit2.cxx
index 4110b37334dc..423223e6357f 100644
--- a/editeng/source/editeng/impedit2.cxx
+++ b/editeng/source/editeng/impedit2.cxx
@@ -1755,7 +1755,7 @@ void ImpEditEngine::InitScriptTypes( sal_Int32 nPara )
         stScriptHints.AddHint(pScriptHintValue->GetValue(), 
pScriptHint->GetStart(),
                               pScriptHint->GetEnd());
 
-        pScriptHint = pScriptHint->GetEnd() ? 
pNode->GetCharAttribs().FindNextAttrib(
+        pScriptHint = pScriptHint->GetEnd() ? 
pNode->GetCharAttribs().FindAttribRightOpen(
                                                   EE_CHAR_SCRIPT_HINT, 
pScriptHint->GetEnd())
                                             : nullptr;
     }
diff --git a/sw/qa/extras/layout/data/tdf167541.fodt 
b/sw/qa/extras/layout/data/tdf167541.fodt
new file mode 100644
index 000000000000..a69e00e845e2
--- /dev/null
+++ b/sw/qa/extras/layout/data/tdf167541.fodt
@@ -0,0 +1,131 @@
+<?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="1.4" office:mimetype="application/vnd.oasis.opendocument.text">
+ 
<office:meta><meta:creation-date>2025-07-17T11:10:09.590320278</meta:creation-date><dc:date>2025-07-17T11:13:26.774187659</dc:date><meta:editing-duration>PT2M8S</meta:editing-duration><meta:editing-cycles>2</meta:editing-cycles><meta:generator>LibreOfficeDev/26.2.0.0.alpha0$Linux_X86_64
 
LibreOffice_project/14f4ea109d4cd8fe50fd419f51e3370c74169343</meta:generator><meta:document-statistic
 meta:table-count="0" meta:image-count="0" meta:object-count="0" 
meta:page-count="1" meta:paragraph-count="0" meta:word-count="0" 
meta:character-count="0" meta:non-whitespace-character-count="0"/></office:meta>
+ <office:font-face-decls>
+  <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 Sans1" svg:font-family="'Noto Sans'" 
style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Serif CJK SC" svg:font-family="'Noto Serif 
CJK SC'" style:font-family-generic="system" style:font-pitch="variable"/>
+ </office:font-face-decls>
+ <office:styles>
+  <style:default-style style:family="graphic">
+   <style:graphic-properties svg:stroke-color="#3465a4" 
draw:fill-color="#729fcf" fo:wrap-option="no-wrap" draw:shadow-offset-x="0.3cm" 
draw:shadow-offset-y="0.3cm" draw:start-line-spacing-horizontal="0.283cm" 
draw:start-line-spacing-vertical="0.283cm" 
draw:end-line-spacing-horizontal="0.283cm" 
draw:end-line-spacing-vertical="0.283cm" 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="0cm" 
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="CA" style:letter-kerning="true" 
style:font-name-asian="Noto Serif CJK SC" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="Noto Sans1" style:font-size-complex="12pt" 
style:language-complex="hi" style:country-complex="IN"/>
+  </style:default-style>
+  <style:default-style style:family="paragraph">
+   <style:paragraph-properties fo:orphans="2" fo:widows="2" 
fo:hyphenation-ladder-count="no-limit" fo:hyphenation-keep="auto" 
loext:hyphenation-keep-type="column" loext:hyphenation-keep-line="false" 
style:text-autospace="ideograph-alpha" style:punctuation-wrap="hanging" 
style:line-break="strict" style:tab-stop-distance="1.251cm" 
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="CA" style:letter-kerning="true" 
style:font-name-asian="Noto Serif CJK SC" style:font-size-asian="10.5pt" 
style:language-asian="zh" style:country-asian="CN" 
style:font-name-complex="Noto Sans1" style:font-size-complex="12pt" 
style:language-complex="hi" style:country-complex="IN" 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="5" 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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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"/>
+    </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="0.499cm" 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:paragraph-properties fo:margin-top="0.42cm" 
fo:margin-bottom="0.349cm"/>
+  </style:style>
+  <style:style style:name="P2" style:family="paragraph">
+   <loext:graphic-properties draw:fill="none" draw:fill-color="#ffffff"/>
+  </style:style>
+  <style:style style:name="T1" style:family="text">
+   <style:text-properties fo:font-size="10pt" style:font-size-asian="10pt" 
style:font-size-complex="10pt"/>
+  </style:style>
+  <style:style style:name="T2" style:family="text">
+   <style:text-properties fo:font-size="10pt" style:font-size-asian="10pt" 
style:font-size-complex="10pt" style:language-complex="hi" 
style:country-complex="IN" style:script-type="complex"/>
+  </style:style>
+  <style:style style:name="gr1" style:family="graphic">
+   <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" 
draw:fill="none" draw:fill-color="#ffffff" fo:min-height="9.049cm" 
loext:decorative="false" style:run-through="foreground" 
style:wrap="run-through" style:number-wrapped-paragraphs="no-limit" 
style:vertical-pos="from-top" style:vertical-rel="paragraph" 
style:horizontal-pos="from-left" style:horizontal-rel="paragraph" 
draw:wrap-influence-on-position="once-concurrent" loext:allow-overlap="true" 
style:flow-with-text="false"/>
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+  </style:style>
+  <style:page-layout style:name="pm1">
+   <style:page-layout-properties fo:page-width="21.59cm" 
fo:page-height="27.94cm" style:num-format="1" 
style:print-orientation="portrait" fo:margin-top="2cm" fo:margin-bottom="2cm" 
fo:margin-left="2cm" fo:margin-right="2cm" style:writing-mode="lr-tb" 
style:layout-grid-color="#c0c0c0" style:layout-grid-lines="20" 
style:layout-grid-base-height="0.706cm" style:layout-grid-ruby-height="0.353cm" 
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="0cm" loext:margin-gutter="0cm">
+    <style:footnote-sep style:width="0.018cm" 
style:distance-before-sep="0.101cm" style:distance-after-sep="0.101cm" 
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="Standard"><draw:frame text:anchor-type="paragraph" 
draw:z-index="0" draw:name="Text Frame 1" draw:style-name="gr1" 
draw:text-style-name="P2" svg:width="12.674cm" svg:height="9.05cm" 
svg:x="2.498cm" svg:y="2.288cm">
+     <draw:text-box>
+      <text:p text:style-name="P1"><text:span 
text:style-name="T1">Test</text:span><text:span 
text:style-name="T2"/><text:span text:style-name="T1"> </text:span><text:span 
text:style-name="T1">test</text:span></text:p>
+     </draw:text-box>
+    </draw:frame></text:p>
+  </office:text>
+ </office:body>
+</office:document>
\ No newline at end of file
diff --git a/sw/qa/extras/layout/layout5.cxx b/sw/qa/extras/layout/layout5.cxx
index df6992997634..7a1678a43823 100644
--- a/sw/qa/extras/layout/layout5.cxx
+++ b/sw/qa/extras/layout/layout5.cxx
@@ -1967,6 +1967,12 @@ CPPUNIT_TEST_FIXTURE(SwLayoutWriter5, testTdf167540)
     verify_me();
 }
 
+CPPUNIT_TEST_FIXTURE(SwLayoutWriter5, testTdf167541)
+{
+    // Without the fix, the following call would hang on an infinite loop
+    createSwDoc("tdf167541.fodt");
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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