From 3b0a7ae09d2f9770bfae9f5eed6a6667c9a3c1ca Mon Sep 17 00:00:00 2001
From: Yann Herklotz <ymherklotz@gmail.com>
Date: Sun, 12 Feb 2017 20:49:21 +0000
Subject: Saving files to make changes

---
 c_parser/src/#c_parser.y#    | 53 --------------------------------------------
 c_parser/src/c_lexer.flex    |  6 +++--
 c_parser/src/c_parser.y      | 30 +++++++++++--------------
 c_parser/src/parser_main.cpp |  8 ++++++-
 4 files changed, 24 insertions(+), 73 deletions(-)
 delete mode 100644 c_parser/src/#c_parser.y#

(limited to 'c_parser/src')

diff --git a/c_parser/src/#c_parser.y# b/c_parser/src/#c_parser.y#
deleted file mode 100644
index 75bfead..0000000
--- a/c_parser/src/#c_parser.y#
+++ /dev/null
@@ -1,53 +0,0 @@
-%code requires{
-
-#include "ast.hpp"
-extern const Expression *g_root; // A way of getting the AST out
-
-//! This is to fix problems when generating C++
-// We are declaring the functions provided by Flex, so
-// that Bison generated code can call them.
-int yylex(void);
-void yyerror(const char *);
-
-}
-
-// Represents the value associated with any kind of
-// AST node.
-%union{
-    const Expression *expr;
-    double number;
-    std::string *string;
-}
-			
-%token	T_KEYWORD T_IDENTIFIER //T_CONSTANT T_OPERATOR T_LCBRACKET T_RCBRACKET
-			
-%type	<expr> STMNT_LIST STMNT COMP_STMNT EXPR_STMNT SLCT_STMNT ITR_STMNT JMP_STMNT
-%type	<number> T_CONSTANT
-%type	<string> T_KEYWORD T_IDENTIFIER T_OPERATOR
-			
-%start ROOT
-			
-%%
-
-ROOT : STMNT_LIST { g_root = $1; }
-
-STMNT_LIST : STMNT
-	| 	STMNT_LIST STMNT
-
-STMNT : COMP_STMNT
-	| 	EXPR_STMNT
-	| 	SLCT_STMNT
-	| 	ITR_STMNT
-	|	JMP_STMNT
-
-COMP_STMNT : STMNT_LIST
-
-%%
-
-const Expression *g_root; // Definition of variable (to match declaration earlier)
-
-const Expression *parseAST() {
-    g_root = 0;
-    yyparse();
-    return g_root;
-}
diff --git a/c_parser/src/c_lexer.flex b/c_parser/src/c_lexer.flex
index 1c10345..49997ed 100644
--- a/c_parser/src/c_lexer.flex
+++ b/c_parser/src/c_lexer.flex
@@ -36,9 +36,11 @@ ALL .
 
 %%
 
-{KEYWORD}   { yylval.string = new std::string(yytext); return T_KEYWORD; }
+{KEYWORD}	{ yylval.string = new std::string(yytext); return T_KEYWORD; }
 
-{IDENTIFIER}    { yylval.string = new std::string(yytext); return T_IDENTIFIER; }
+{IDENTIFIER}	{ yylval.string = new std::string(yytext); return T_IDENTIFIER; }
+
+;		{ return T_SC; }
 
 {OPERATOR}  { yylval.string = new std::string(yytext); return T_OPERATOR; }
 
diff --git a/c_parser/src/c_parser.y b/c_parser/src/c_parser.y
index 25659b5..7d36fc6 100644
--- a/c_parser/src/c_parser.y
+++ b/c_parser/src/c_parser.y
@@ -15,32 +15,28 @@ void yyerror(const char *);
 // AST node.
 %union{
     const Expression *expr;
-    double number;
+    //   double number;
     std::string *string;
 }
-
-%token T_KEYWORD T_IDENTIFIER T_CONSTANT T_OPERATOR T_LCBRACKET T_RCBRACKET
-
-%type <expr> STMNT_LIST STMNT COMP_STMNT EXPR_STMNT SLCT_STMNT ITR_STMNT JMP_STMNT
-%type <number> T_CONSTANT
-%type <string> T_KEYWORD T_IDENTIFIER T_OPERATOR
-
+			
+%token	T_KEYWORD T_IDENTIFIER T_SC //T_CONSTANT T_OPERATOR T_LCBRACKET T_RCBRACKET
+			
+%type <expr> STMNT_LIST STMNT DCLRTN // COMP_STMNT EXPR_STMNT SLCT_STMNT ITR_STMNT JMP_STMNT
+//			%type <number> //	T_CONSTANT
+%type <string> T_KEYWORD T_IDENTIFIER //T_OPERATOR
+			
 %start ROOT
-
+			
 %%
 
 ROOT : STMNT_LIST { g_root = $1; }
 
-STMNT_LIST : STMNT
-           | STMNT_LIST STMNT
+STMNT_LIST : STMNT { $$ = $1; }
+	| 	STMNT_LIST STMNT { $$ = $2; }
 
-STMNT : COMP_STMNT
-      | EXPR_STMNT
-      | SLCT_STMNT
-      | ITR_STMNT
-      | JMP_STMNT
+STMNT : DCLRTN { $$ = $1; }
 
-COMP_STMNT : STMNT_LIST
+DCLRTN : T_KEYWORD T_IDENTIFIER T_SC { $$ = new Declaration(*$2); }
 
 %%
 
diff --git a/c_parser/src/parser_main.cpp b/c_parser/src/parser_main.cpp
index 8bf67bf..fe80cb7 100644
--- a/c_parser/src/parser_main.cpp
+++ b/c_parser/src/parser_main.cpp
@@ -1,5 +1,11 @@
 #include "ast.hpp"
 
+#include <iostream>
+
 int main(int argc, char *argv[]) {
-	return 0;
+    
+    const Expression *ast = parseAST();
+    ast->print();
+    
+    return 0;
 }
-- 
cgit