X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fio%2FTokenStreamReader.hpp;fp=src%2Fio%2FTokenStreamReader.hpp;h=e2945c40cc2b60880261d7b525f8d852844ae753;hb=34e833025f0616ab4b86b808d0ce1cc49cecce5d;hp=0000000000000000000000000000000000000000;hpb=698d8120797383886d1386d3a8ac4b5fc1ca7f16;p=blobs.git

diff --git a/src/io/TokenStreamReader.hpp b/src/io/TokenStreamReader.hpp
new file mode 100644
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