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-rw-r--r--lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp19
1 files changed, 19 insertions, 0 deletions
diff --git a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
index a9a1b44731f2..3e77b1646739 100644
--- a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
+++ b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
@@ -139,6 +139,22 @@ void ClangHighlighter::Highlight(const HighlightStyle &options,
FileManager file_mgr(file_opts,
FileSystem::Instance().GetVirtualFileSystem());
+ // The line might end in a backslash which would cause Clang to drop the
+ // backslash and the terminating new line. This makes sense when parsing C++,
+ // but when highlighting we care about preserving the backslash/newline. To
+ // not lose this information we remove the new line here so that Clang knows
+ // this is just a single line we are highlighting. We add back the newline
+ // after tokenizing.
+ llvm::StringRef line_ending = "";
+ // There are a few legal line endings Clang recognizes and we need to
+ // temporarily remove from the string.
+ if (line.consume_back("\r\n"))
+ line_ending = "\r\n";
+ else if (line.consume_back("\n"))
+ line_ending = "\n";
+ else if (line.consume_back("\r"))
+ line_ending = "\r";
+
unsigned line_number = previous_lines.count('\n') + 1U;
// Let's build the actual source code Clang needs and setup some utility
@@ -227,6 +243,9 @@ void ClangHighlighter::Highlight(const HighlightStyle &options,
color.Apply(result, to_print);
}
+ // Add the line ending we trimmed before tokenizing.
+ result << line_ending;
+
// If we went over the whole file but couldn't find our own file, then
// somehow our setup was wrong. When we're in release mode we just give the
// user the normal line and pretend we don't know how to highlight it. In