================
@@ -5151,6 +5151,14 @@ bool TokenAnnotator::mustBreakBefore(const AnnotatedLine 
&Line,
     return true;
   if (Left.IsUnterminatedLiteral)
     return true;
+  // FIXME: Breaking after newlines seems useful in general. Turn this into an
+  // option and recognize more cases like endl etc, and break independent of
+  // what comes after operator lessless.
+  if (Right.is(tok::lessless) && Right.Next &&
+      Right.Next->is(tok::string_literal) && Left.is(tok::string_literal) &&
+      Left.TokenText.ends_with("\\n\"")) {
----------------
kadircet wrote:

> We can also handle \n and endl now. For example:

yes, but that'll be "new" behavior, and even if we do that, i'd rather do that 
in a separate patch that can be reviewed/reverted on it's own.

as mentioned, this is mostly to restore some of the "incidental" behavior that 
was relied on by codebases in the wild. so that changes in the new clang-format 
release will be minimal.

https://github.com/llvm/llvm-project/pull/76795
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