added more symbol table functions

grammar.y

@@ -4,6 +4,7 @@
 // Prologue
 %{
   #include <stdio.h>
+  #include "symbol_table.c"
 %}
 
 %token ID 101
@@ -53,7 +54,7 @@
 %token RELEASE 614
 %token COMMENT 700
 %%
-B : '{' E '}'; //Braced Expressions can have braces removed to get regular expressions
+B : '{'{CreateScope(cur,line,column)} E '}'; //Braced Expressions can have braces removed to get regular expressions
 D : '[' l ']'; //Declaration Lists Brackets can be taken out to get a list of Declarations
 E : Maybe_D U; //An expression can start with an optional D followed by an undeclared segment
 Maybe_D : D