tdf#102374: regex allow ReplaceBackReferences for $ search

Since searching for $ spans nodes, and normal searches don't find it
(see bChkParaEnd and bChkEmptyPara), all "replace" items were
being used verbatim instead of being transformed. So, a similar
"just make it work" hack is needed here.

This patch allows proper replacement for \[\&$t] as well as
& and $0.

Change-Id: I59d760e27acacff679decdcb7fcf337f3b4a1fa1
Reviewed-on: https://gerrit.libreoffice.org/49387
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Justin Luth <justin_luth@sil.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

1 files changed, 13 insertions, 3 deletions

diff --git a/sw/source/core/crsr/findtxt.cxx b/sw/source/core/crsr/findtxt.cxx
index cf98da007ba4..164fbb391e0b 100644
--- a/sw/source/core/crsr/findtxt.cxx
+++ b/sw/source/core/crsr/findtxt.cxx
@@ -758,15 +758,25 @@ OUString *ReplaceBackReferences( const i18nutil::SearchOptions2& rSearchOpt, SwP
         SearchAlgorithms2::REGEXP == rSearchOpt.AlgorithmType2 )
     {
         const SwContentNode* pTextNode = pPam->GetContentNode();
-        if( pTextNode && pTextNode->IsTextNode() && pTextNode == pPam->GetContentNode( false ) )
+        const bool bParaEnd = rSearchOpt.searchString == "$" || rSearchOpt.searchString == "^$" || rSearchOpt.searchString == "$^";
+        if ( pTextNode && pTextNode->IsTextNode() && (bParaEnd || pTextNode == pPam->GetContentNode( false )) )
         {
             utl::TextSearch aSText( utl::TextSearch::UpgradeToSearchOptions2( rSearchOpt) );
-            const OUString& rStr = pTextNode->GetTextNode()->GetText();
+            OUString rStr = pTextNode->GetTextNode()->GetText();
             sal_Int32 nStart = pPam->Start()->nContent.GetIndex();
             sal_Int32 nEnd = pPam->End()->nContent.GetIndex();
             SearchResult aResult;
-            if( aSText.SearchForward( rStr, &nStart, &nEnd, &aResult ) )
+            if ( bParaEnd || aSText.SearchForward( rStr, &nStart, &nEnd, &aResult ) )
             {
+                if ( bParaEnd )
+                {
+                    rStr = "\\n";
+                    aResult.subRegExpressions = 1;
+                    aResult.startOffset.realloc(1);
+                    aResult.endOffset.realloc(1);
+                    aResult.startOffset[0] = 0;
+                    aResult.endOffset[0] = rStr.getLength();
+                }
                 OUString aReplaceStr( rSearchOpt.replaceString );
                 aSText.ReplaceBackReferences( aReplaceStr, rStr, aResult );
                 pRet = new OUString( aReplaceStr );