more stuff from blank

[blobs.git] / src / io / TokenStreamReader.hpp

diff --git a/src/io/TokenStreamReader.hpp b/src/io/TokenStreamReader.hpp
new file mode 100644 (file)
index 0000000..e2945c4
--- /dev/null
+++ b/src/io/TokenStreamReader.hpp
@@ -0,0 +1,71 @@
+#ifndef BLOBS_IO_TOKENSTREAMREADER_HPP_
+#define BLOBS_IO_TOKENSTREAMREADER_HPP_
+
+#include "Token.hpp"
+#include "Tokenizer.hpp"
+#include "../graphics/glm.hpp"
+
+#include <iosfwd>
+#include <string>
+
+
+namespace blobs {
+namespace io {
+
+class TokenStreamReader {
+
+public:
+       explicit TokenStreamReader(std::istream &);
+
+       bool HasMore();
+       const Token &Next();
+       const Token &Peek();
+
+       void Skip(Token::Type);
+
+       void ReadBoolean(bool &);
+       void ReadIdentifier(std::string &);
+       void ReadNumber(float &);
+       void ReadNumber(int &);
+       void ReadNumber(unsigned long &);
+       void ReadString(std::string &);
+
+       void ReadVec(glm::vec2 &);
+       void ReadVec(glm::vec3 &);
+       void ReadVec(glm::vec4 &);
+
+       void ReadVec(glm::ivec2 &);
+       void ReadVec(glm::ivec3 &);
+       void ReadVec(glm::ivec4 &);
+
+       void ReadQuat(glm::quat &);
+
+       // the Get* functions advance to the next token
+       // the As* functions try to cast the current token
+       // if the value could not be converted, a std::runtime_error is thrown
+
+       bool GetBool();
+       bool AsBool() const;
+       float GetFloat();
+       float AsFloat() const;
+       int GetInt();
+       int AsInt() const;
+       unsigned long GetULong();
+       unsigned long AsULong() const;
+
+private:
+       void SkipComments();
+
+       void Assert(Token::Type) const;
+       Token::Type GetType() const noexcept;
+       const std::string &GetValue() const noexcept;
+
+       Tokenizer in;
+       bool cached;
+
+};
+
+}
+}
+
+#endif