[clang] [clang][Diagnostics] Highlight code snippets (PR #66514)

[Timm Baeder via cfe-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/66...@github.com>


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@@ -1288,11 +1291,33 @@ void TextDiagnostic::emitSnippet(StringRef SourceLine,
 
   // Print the source line one character at a time.
   bool PrintReversed = false;
+  bool HighlightingEnabled = DiagOpts->ShowColors;
   size_t I = 0;
   while (I < SourceLine.size()) {
     auto [Str, WasPrintable] =
         printableTextForNextCharacter(SourceLine, &I, DiagOpts->TabStop);
 
+    // Just stop highlighting anything for this line if we found a 
non-printable
+    // character.
----------------
tbaederr wrote:

>From some local testing, seems like this just works.

https://github.com/llvm/llvm-project/pull/66514
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