From 74bb9cd27242b9320f99ff4d2b50c3051576cc14 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 8 Feb 2022 16:53:51 +0800
Subject: ...

---
 include/cru/parse/Grammar.hpp | 62 -------------------------------------------
 1 file changed, 62 deletions(-)
 delete mode 100644 include/cru/parse/Grammar.hpp

(limited to 'include/cru/parse/Grammar.hpp')

diff --git a/include/cru/parse/Grammar.hpp b/include/cru/parse/Grammar.hpp
deleted file mode 100644
index 8dc1833f..00000000
--- a/include/cru/parse/Grammar.hpp
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-#include "Production.hpp"
-
-#include <unordered_map>
-#include <vector>
-
-namespace cru::parse {
-class CRU_PARSE_API Grammar : public Object {
- public:
-  Grammar();
-
-  CRU_DELETE_COPY(Grammar)
-  CRU_DELETE_MOVE(Grammar)
-
-  ~Grammar() override;
-
- public:
-  void SetStartSymbol(Nonterminal* start_symbol);
-
-  Terminal* CreateTerminal(String name);
-  Nonterminal* CreateNonterminal(String name);
-  Production* CreateProduction(String name, Nonterminal* left,
-                               std::vector<Symbol*> right);
-
-  bool RemoveSymbol(Symbol* symbol);
-  bool RemoveProduction(Production* production);
-
- public:  // Getters
-  Nonterminal* GetStartSymbol() const { return start_symbol_; }
-  const std::vector<Terminal*>& GetTerminals() const { return terminals_; }
-  const std::vector<Nonterminal*>& GetNonterminals() const {
-    return nonterminals_;
-  }
-  const std::vector<Symbol*>& GetSymbols() const { return symbols_; }
-  const std::vector<Production*>& GetProductions() const {
-    return productions_;
-  }
-
-  Grammar* Clone() const;
-
- public:  // Algorithms
-  std::unordered_map<Nonterminal*, std::vector<Production*>>
-  GenerateLeftProductionMap() const;
-
-  // Algorithm 4.19.
-  // Require grammar has no cycles or empty-productions.
-  void EliminateLeftRecursions();
-
-  // Algorithm 4.21
-  void LeftFactor();
-
- public:
-  String ProductionsToString() const;
-
- private:
-  Nonterminal* start_symbol_ = nullptr;
-  std::vector<Terminal*> terminals_;
-  std::vector<Nonterminal*> nonterminals_;
-  std::vector<Symbol*> symbols_;
-  std::vector<Production*> productions_;
-};
-}  // namespace cru::parse
-- 
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