From 392805699c8d411400901b8e3d7298f0f9198bb5 Mon Sep 17 00:00:00 2001
From: Yann Herklotz <ymherklotz@gmail.com>
Date: Thu, 16 Feb 2017 22:52:40 +0000
Subject: Changing ast and improving it

---
 c_parser/include/ast_declaration.hpp | 18 ++++++++++++------
 c_parser/include/ast_primitives.hpp  | 19 +++++++++++++++++++
 c_parser/src/c_lexer.flex            |  6 +++---
 c_parser/src/c_parser.y              | 20 ++++++++++++--------
 c_parser/test/test_parser.c          |  5 +++++
 5 files changed, 51 insertions(+), 17 deletions(-)
 create mode 100644 c_parser/include/ast_primitives.hpp

(limited to 'c_parser')

diff --git a/c_parser/include/ast_declaration.hpp b/c_parser/include/ast_declaration.hpp
index e529378..98fe255 100644
--- a/c_parser/include/ast_declaration.hpp
+++ b/c_parser/include/ast_declaration.hpp
@@ -5,15 +5,21 @@
 
 class ast_Declaration : public ast_Base {
 private:
-    const std::string id;
     
-protected:
+public:
+    virtual void print() const override = 0;
+};
+
+class ast_VariableDeclaration : public ast_Declartaion {
+private:
+    const std::string id;
+    const std::string type;
     
 public:
-    ast_Declaration(const std::string _id) : id(_id) {}
-    virtual void print() const override {
-	std::cout << id;
-    }
+    ast_VariableDeclaration(const std::string& _id, const std::string& _type) :
+	id(_id), type(_type) {}
+
+    virtual void print() const override {}
 };
 
 #endif
diff --git a/c_parser/include/ast_primitives.hpp b/c_parser/include/ast_primitives.hpp
new file mode 100644
index 0000000..fbcb1b4
--- /dev/null
+++ b/c_parser/include/ast_primitives.hpp
@@ -0,0 +1,19 @@
+#ifndef AST_PRIMITIVES_HPP
+#define AST_PRIMITIVES_HPP
+
+#include "ast.hpp"
+
+#include <string>
+
+class ast_Variable : public ast_Base {
+private:
+    std::string id;
+public:
+    ast_Variable(const std::string& _id) : id(_id) {}
+
+    virtual void print() const override {
+        std::cout << "<Variable id=\"" << id << "\" />" << std::endl;
+    }
+};
+
+#endif
diff --git a/c_parser/src/c_lexer.flex b/c_parser/src/c_lexer.flex
index ba19cd5..59a48e7 100644
--- a/c_parser/src/c_lexer.flex
+++ b/c_parser/src/c_lexer.flex
@@ -42,9 +42,9 @@ const|volatile						      { return T_TYPE_QUAL; }
 
 {IDENTIFIER}	{ yylval.string = new std::string(yytext); return T_IDENTIFIER; }
 
-;		{ return T_SC; }
-=		{ return T_EQ; }
-,		{ return T_CMA; }
+[;]		{ return T_SC; }
+[=]		{ return T_EQ; }
+[,]		{ return T_CMA; }
 [(]		{ return T_LRB; }
 [)]		{ return T_RRB; }
 [{]               { return T_LCB; }
diff --git a/c_parser/src/c_parser.y b/c_parser/src/c_parser.y
index 97d13a7..5429f76 100644
--- a/c_parser/src/c_parser.y
+++ b/c_parser/src/c_parser.y
@@ -19,9 +19,13 @@ void yyerror(const char *);
     std::string *string;
 }
                         
-%token T_TYPE_SPEC T_TYPE_QUAL T_STRG_SPEC T_IDENTIFIER T_SC T_CMA T_EQ T_LRB T_RRB T_LCB T_RCB T_INT_CONST
+%token T_TYPE_SPEC T_TYPE_QUAL T_STRG_SPEC T_IDENTIFIER
+%token T_SC T_CMA T_EQ T_LRB T_RRB T_LCB T_RCB
+%token T_INT_CONST
                         
-%type <stmnt> EXT_DEF EXT_DECLARATION FUNC_DEF DECLARATION DECLARATION_SPEC DECLARATION_SPEC_T INIT_DECLARATOR INIT_DECLARATOR_LIST DECLARATOR INITIALIZER
+%type <stmnt> EXT_DEF EXT_DECLARATION EXT_DECLARATION_2
+%type <stmnt> FUNC_DEF
+%type <stmnt> DECLARATION DECLARATION_SPEC DECLARATION_SPEC_T INIT_DECLARATOR INIT_DECLARATOR_LIST DECLARATOR INITIALIZER
 //                      %type <number> //       T_CONSTANT
 %type <string> T_IDENTIFIER //T_OPERATOR
                         
@@ -36,20 +40,20 @@ ROOT : EXT_DEF { ; }
 EXT_DEF : EXT_DECLARATION { ; }
 	|       EXT_DEF EXT_DECLARATION { $$ = $2; }
 
-EXT_DECLARATION : DECLARATION_SPEC EXT_DECLARATION_2 { ; }
+EXT_DECLARATION : DECLARATION_SPEC EXT_DECLARATION_2 { $$ = $2; }
 
 EXT_DECLARATION_2 : DECLARATION { ; }
 	|	FUNC_DEF { ; }
 
 // FUNCTION DEFINITION
 
-FUNC_DEF : T_IDENTIFIER T_LRB  T_RRB T_LCB T_RCB { ; }
+FUNC_DEF : T_IDENTIFIER T_LRB T_RRB T_LCB T_RCB { ; }
 
 // DECLARATION
 
 DECLARATION : INIT_DECLARATOR_LIST T_SC { ; }
 
-DECLARATION_SPEC :   DECLARATION_SPEC_T { ; }
+DECLARATION_SPEC : DECLARATION_SPEC_T { ; }
 	|	DECLARATION_SPEC_T DECLARATION_SPEC { ; }
 
 DECLARATION_SPEC_T : T_TYPE_SPEC { ; }
@@ -59,12 +63,12 @@ DECLARATION_SPEC_T : T_TYPE_SPEC { ; }
 INIT_DECLARATOR_LIST : INIT_DECLARATOR { g_root->push($1); }
 	|       INIT_DECLARATOR_LIST T_CMA INIT_DECLARATOR { g_root->push($3); }
 
-INIT_DECLARATOR :   DECLARATOR { ; }
+INIT_DECLARATOR : DECLARATOR { ; }
 	|	DECLARATOR T_EQ INITIALIZER { ; }
 
-DECLARATOR :        T_IDENTIFIER {$$ = new ast_Declaration(*$1); }
+DECLARATOR : T_IDENTIFIER {$$ = new ast_Declaration(*$1); }
 
-INITIALIZER :   T_INT_CONST { ; }
+INITIALIZER : T_INT_CONST { ; }
 
 // STATEMENTS
 
diff --git a/c_parser/test/test_parser.c b/c_parser/test/test_parser.c
index e69de29..a685aff 100644
--- a/c_parser/test/test_parser.c
+++ b/c_parser/test/test_parser.c
@@ -0,0 +1,5 @@
+int a;
+int b;
+int c;
+int yann, is, the, best;
+int hello = 0;
-- 
cgit