Added a somewhat working version of the parser

1 files changed, 40 insertions, 0 deletions

diff --git a/src/PolishNotationParser.h b/src/PolishNotationParser.h
new file mode 100644
index 0000000..1de6f26
--- /dev/null
+++ b/src/PolishNotationParser.h
@@ -0,0 +1,40 @@
+#ifndef ARZU_INTERPRETER_PARSER
+#define ARZU_INTERPRETER_PARSER
+
+#include <list>
+#include <deque>
+#include <string>
+#include <fstream>
+#include "Memory.h"
+using namespace std;
+
+struct Instruction {
+	string name;
+	unsigned argc;
+	void (*exec)(Memory&);
+
+	Instruction(const char* str, unsigned argc, void (*exec)(Memory&));
+};
+
+struct Atom {
+	bool (*isAtomChar)(char);
+	MemoryData* (*absorb)(ifstream&);
+
+	Atom(bool (*isAtomChar)(char), MemoryData* (*absorb)(ifstream&));
+};
+
+class PNParser {
+	deque<Instruction> instr;
+	list<Atom> atoms;
+
+	void evaluateFunction(Memory& mem, Function* func, ifstream& inFile);
+	void pushToWork(Memory& mem, MemoryData* data, ifstream& inFile);
+	void parseScope(ifstream& inFile, Memory& mem, int start, int end);
+public:
+	PNParser() = default;
+	void addInstr(Instruction);
+	void addAtom(Atom);
+	void parse(ifstream&, Memory&);
+};
+
+#endif