1 //===-- yaml-numeric-parser-fuzzer.cpp - Fuzzer for YAML numeric parser ---===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #include "llvm/ADT/StringRef.h"
10 #include "llvm/Support/Regex.h"
11 #include "llvm/Support/YAMLTraits.h"
15 llvm::Regex Infinity("^[-+]?(\\.inf|\\.Inf|\\.INF)$");
16 llvm::Regex Base8("^0o[0-7]+$");
17 llvm::Regex Base16("^0x[0-9a-fA-F]+$");
18 llvm::Regex Float("^[-+]?(\\.[0-9]+|[0-9]+(\\.[0-9]*)?)([eE][-+]?[0-9]+)?$");
20 inline bool isNumericRegex(llvm::StringRef S) {
22 if (S.equals(".nan") || S.equals(".NaN") || S.equals(".NAN"))
25 if (Infinity.match(S))
40 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
41 std::string Input(reinterpret_cast<const char *>(Data), Size);
42 Input.erase(std::remove(Input.begin(), Input.end(), 0), Input.end());
43 if (!Input.empty() && llvm::yaml::isNumeric(Input) != isNumericRegex(Input))