added util/refptr, tests/Initial.jtl, parser/parser.h, c_statement to grammar

git-svn-id: svn://anubis/jtlc/trunk@7 f5bc74b8-7b62-4e90-9214-7121d538519f

parser/parser.h

@@ -0,0 +1,9 @@
+
+#ifndef PARSER_H
+#define PARSER_H
+
+#include "util/refptr.h"
+
+void parse(const char * fileName);
+
+#endif

parser/parser.lex

@@ -75,6 +75,7 @@ float       return FLOAT;
 double      return DOUBLE;
 
     /* keywords */
+c           return C;
 import      return IMPORT;
 module      return MODULE;
 return      return RETURN;

parser/parser.yy

@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <iostream>
 #include "parser.tab.hh"        /* bison-generated header with YY[SL]TYPE */
+#include "parser.h"
 using namespace std;
 
 #define yyerror(msg) errFunc(msg, &yylloc)
@@ -76,6 +77,7 @@ int yywrap()
 %token DOUBLE;
 
     /* keywords */
+%token C;
 %token IMPORT;
 %token MODULE;
 %token RETURN;
@@ -94,6 +96,7 @@ program_item: module_declaration
             | import
             | variable_declaration
             | function
+            | c_statement
             ;
 
 module_declaration: MODULE module_name SEMICOLON
@@ -177,10 +180,11 @@ type: primitive_type
     ;
 
 statement: expression SEMICOLON
-         | return_statement SEMICOLON
+         | return_statement
+         | c_statement
          ;
 
-return_statement: RETURN expression
+return_statement: RETURN expression SEMICOLON
                 ;
 
 expression: assign_expr
@@ -193,6 +197,10 @@ assign_expr: lvalue ASSIGN expression
 lvalue: IDENTIFIER
       ;
 
+c_statement: C LPAREN STRING_LITERAL RPAREN SEMICOLON {
+            }
+           ;
+
 %%
 
 void parse(const char * fileName)