[clang-tools-extra] [llvm] [llvm] add support for mustache templating language (PR #105893)

[Paul Kirth via cfe-commits]

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@@ -0,0 +1,446 @@
+//===-- Mustache.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
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Mustache.h"
+#include "llvm/Support/Error.h"
+
+using namespace llvm;
+using namespace llvm::json;
+using namespace llvm::mustache;
+
+SmallString<128> escapeString(StringRef Input,
+                              DenseMap<char, StringRef> &Escape) {
+  SmallString<128> EscapedString("");
+  for (char C : Input) {
+    if (Escape.find(C) != Escape.end())
+      EscapedString += Escape[C];
+    else
+      EscapedString += C;
+  }
+  return EscapedString;
+}
+
+std::vector<SmallString<128>> split(StringRef Str, char Delimiter) {
+  std::vector<SmallString<128>> Tokens;
+  if (Str == ".") {
+    Tokens.push_back(Str);
+    return Tokens;
+  }
+  StringRef Ref(Str);
+  while (!Ref.empty()) {
+    llvm::StringRef Part;
+    std::tie(Part, Ref) = Ref.split(Delimiter);
+    Tokens.push_back(Part.trim());
+  }
+  return Tokens;
+}
+
+Token::Token(StringRef RawBody, StringRef InnerBody, char Identifier)
+    : RawBody(RawBody), TokenBody(InnerBody) {
+
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ilovepi wrote:

nit: newline

https://github.com/llvm/llvm-project/pull/105893