Import YAML-Parser yaml-cpp

  Version: tags/yaml-cpp-0.6.2
  License: MIT

yaml-cpp requires c++11 and since yaml-cpp 0.6 there is no dependency on
boost anymore.

A YAML parser is needed for the ClangTools plugin to parse exported
diagnostics from clang-tidy/clazy:

  $ clang-tidy -export-fixes=/tmp/tidy.yaml source.cpp

The imported source is stripped of unneeded files as documented with

  src/libs/3rdparty/yaml-cpp/patches/0001-yaml-cpp-Strip-unneeded-sources.patch
  (generated with "git format-patch -D")

Change-Id: Ib0a521b5aff4b1cd058eb480bfb99fde4b320dc7
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/libs/3rdparty/yaml-cpp/src/regex_yaml.h b/src/libs/3rdparty/yaml-cpp/src/regex_yaml.h
new file mode 100644
index 0000000000..8f28b852a2
--- /dev/null
+++ b/src/libs/3rdparty/yaml-cpp/src/regex_yaml.h
@@ -0,0 +1,87 @@
+#ifndef REGEX_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+#define REGEX_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+
+#if defined(_MSC_VER) ||                                            \
+    (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
+     (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4
+#pragma once
+#endif
+
+#include <string>
+#include <vector>
+
+#include "yaml-cpp/dll.h"
+
+namespace YAML {
+class Stream;
+
+enum REGEX_OP {
+  REGEX_EMPTY,
+  REGEX_MATCH,
+  REGEX_RANGE,
+  REGEX_OR,
+  REGEX_AND,
+  REGEX_NOT,
+  REGEX_SEQ
+};
+
+// simplified regular expressions
+// . Only straightforward matches (no repeated characters)
+// . Only matches from start of string
+class YAML_CPP_API RegEx {
+ public:
+  RegEx();
+  RegEx(char ch);
+  RegEx(char a, char z);
+  RegEx(const std::string& str, REGEX_OP op = REGEX_SEQ);
+  ~RegEx() {}
+
+  friend YAML_CPP_API RegEx operator!(const RegEx& ex);
+  friend YAML_CPP_API RegEx operator||(const RegEx& ex1, const RegEx& ex2);
+  friend YAML_CPP_API RegEx operator&&(const RegEx& ex1, const RegEx& ex2);
+  friend YAML_CPP_API RegEx operator+(const RegEx& ex1, const RegEx& ex2);
+
+  bool Matches(char ch) const;
+  bool Matches(const std::string& str) const;
+  bool Matches(const Stream& in) const;
+  template <typename Source>
+  bool Matches(const Source& source) const;
+
+  int Match(const std::string& str) const;
+  int Match(const Stream& in) const;
+  template <typename Source>
+  int Match(const Source& source) const;
+
+ private:
+  RegEx(REGEX_OP op);
+
+  template <typename Source>
+  bool IsValidSource(const Source& source) const;
+  template <typename Source>
+  int MatchUnchecked(const Source& source) const;
+
+  template <typename Source>
+  int MatchOpEmpty(const Source& source) const;
+  template <typename Source>
+  int MatchOpMatch(const Source& source) const;
+  template <typename Source>
+  int MatchOpRange(const Source& source) const;
+  template <typename Source>
+  int MatchOpOr(const Source& source) const;
+  template <typename Source>
+  int MatchOpAnd(const Source& source) const;
+  template <typename Source>
+  int MatchOpNot(const Source& source) const;
+  template <typename Source>
+  int MatchOpSeq(const Source& source) const;
+
+ private:
+  REGEX_OP m_op;
+  char m_a, m_z;
+  std::vector<RegEx> m_params;
+};
+}
+
+#include "regeximpl.h"
+
+#endif  // REGEX_H_62B23520_7C8E_11DE_8A39_0800200C9A66