vendor/llvm-project/llvmorg-16-init-18548-gb0daacf58f41

1 files changed, 56 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/LogicalView/Core/LVSupport.cpp b/llvm/lib/DebugInfo/LogicalView/Core/LVSupport.cpp
new file mode 100644
index 000000000000..9fa1f28eb089
--- /dev/null
+++ b/llvm/lib/DebugInfo/LogicalView/Core/LVSupport.cpp
@@ -0,0 +1,56 @@
+//===-- LVSupport.cpp -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This implements the supporting functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/LogicalView/Core/LVSupport.h"
+#include "llvm/Support/FormatAdapters.h"
+#include "llvm/Support/FormatVariadic.h"
+#include <iomanip>
+
+using namespace llvm;
+using namespace llvm::logicalview;
+
+#define DEBUG_TYPE "Support"
+
+// Perform the following transformations to the given 'Path':
+// - all characters to lowercase.
+// - '\\' into '/' (Platform independent).
+// - '//' into '/'
+std::string llvm::logicalview::transformPath(StringRef Path) {
+  std::string Name(Path);
+  std::transform(Name.begin(), Name.end(), Name.begin(), tolower);
+  std::replace(Name.begin(), Name.end(), '\\', '/');
+
+  // Remove all duplicate slashes.
+  size_t Pos = 0;
+  while ((Pos = Name.find("//", Pos)) != std::string::npos)
+    Name.erase(Pos, 1);
+
+  return Name;
+}
+
+// Convert the given 'Path' to lowercase and change any matching character
+// from 'CharSet' into '_'.
+// The characters in 'CharSet' are:
+//   '/', '\', '<', '>', '.', ':', '%', '*', '?', '|', '"', ' '.
+std::string llvm::logicalview::flattenedFilePath(StringRef Path) {
+  std::string Name(Path);
+  std::transform(Name.begin(), Name.end(), Name.begin(), tolower);
+
+  const char *CharSet = "/\\<>.:%*?|\" ";
+  char *Input = Name.data();
+  while (Input && *Input) {
+    Input = strpbrk(Input, CharSet);
+    if (Input)
+      *Input++ = '_';
+  };
+  return Name;
+}