1 files changed, 22 insertions, 10 deletions
diff --git a/kate/part/katesearch.cpp b/kate/part/katesearch.cpp
index 8f4911137..96f5128b0 100644
--- a/kate/part/katesearch.cpp
+++ b/kate/part/katesearch.cpp
@@ -377,23 +377,35 @@ void KateSearch::replaceOne()
 {
   QString replaceWith = m_replacement;
   if ( s.flags.regExp && s.flags.useBackRefs ) {
-    // replace each "(?!\)\d+" with the corresponding capture
-    QRegExp br("\\\\(\\d+)");
+    // Replace each "\0"..."\9" with the corresponding capture,
+    // "\n" and "\t" with newline and tab,
+    // "\\" with "\",
+    // and remove the "\" for any other sequence.
+    QRegExp br("\\\\(.)");
     int pos = br.search( replaceWith );
     int ncaps = m_re.numCaptures();
     while ( pos >= 0 ) {
-      QString sc;
-      if ( !pos ||  replaceWith.at( pos-1) != '\\' ) {
-        int ccap = br.cap(1).toInt();
+      QString substitute;
+      QChar argument = br.cap(1).at(0);
+      if ( argument.isDigit() ) {
+        // the second character is a digit, this is a backreference
+        int ccap = argument.digitValue();
         if (ccap <= ncaps ) {
-          sc = m_re.cap( ccap );
-          replaceWith.replace( pos, br.matchedLength(), sc );
-        }
-        else {
+          substitute = m_re.cap( ccap );
+        } else {
           kdDebug()<<"KateSearch::replaceOne(): you don't have "<<ccap<<" backreferences in regexp '"<<m_re.pattern()<<"'"<<endl;
+          break;
         }
+      } else if ( argument == 'n' ) {
+        substitute = '\n';
+      } else if ( argument == 't' ) {
+        substitute = '\t';
+      } else {
+        // handle a validly escaped backslash, or an invalid escape.
+        substitute = argument;
       }
-      pos = br.search( replaceWith, pos + (int)sc.length() );
+      replaceWith.replace( pos, br.matchedLength(), substitute );
+      pos = br.search( replaceWith, pos + substitute.length() );
     }
   }