--- eso.py-	2016-09-19 00:00:00.000000000 +0900
+++ eso.py	2016-09-20 00:00:00.000000000 +0900
@@ -231,6 +231,12 @@ def tree_kwd(lst, kdic):
 			r = tree_kwd( lst[2:], kdic )
 			e = [ k, v, lst[1], r.pop(0) ]
 			return [ e ] + r
+		if v == 'struct':
+			(name, i) = ( lst[1][1], 2 ) if lst[1][0] == 'name' else (None, 1)
+			(body, i) = ( lst[i], i+1 ) if lst[i][:2] == [ 'br_s', '{' ] else (None, i)
+			e = [ 'struct', name, body ]
+			e = [ 'type' if lst[i][0] == 'name' else 'sdef', e ]
+			return step(e, i)
 	e = e[:2] + tree_kwd( e[2:], kdic )
 	return step(e, 1)
 
@@ -308,7 +314,7 @@ def es_split(s):
 		'br_e' : [ ')', ']', '}' ],
 		'op' : ops_flat,
 		'type' : [ 'int', 'char', 'void', 'double' ],
-		'kwd' : [ 'return', 'if', 'else', 'while', 'for', 'break', 'continue' ],
+		'kwd' : [ 'return', 'if', 'else', 'while', 'for', 'break', 'continue', 'struct' ],
 		'spc' : [ ' ', '\t', '\n' ],
 		'etc' : [ ';' ],
 		'no_spc': [ '.0', '.1', '.2', '.3', '.4', '.5', '.6', '.7', '.8', '.9' ],
@@ -408,6 +414,12 @@ def do_set(e, val, info):
 		arr = get_arr_with_chk(v, i, info)
 		arr[i] = val
 		return val
+	if e[:2] in [ [ 'op', '.' ], [ 'op', '->' ] ]:
+		name = e[2][1]  # [ 'name', xxx ]
+		memb = e[3][1]  # [ 'name', xxx ]
+		d = get_val(name, info)
+		d[memb] = val		
+		return val		
 
 	warn_no_sup('do_set', 'k', k)
 
@@ -438,6 +450,8 @@ def do_op2(v, a, b, info):
 	a = do_expr(a, info)
 	if v == '?':
 		return do_expr(b[2] if a else b[3], info)
+	if v in [ '.', '->' ]:
+		return a.get( b[1] )  # b == [ name, xxx ]
 	b = do_expr(b, info)
 	if v == '=':
 		return do_set(oa, b, info)
@@ -608,6 +622,8 @@ def do_type(expr, info):
 			val = do_type_arr(e, val, info)
 		elif val:
 			val = do_expr(val, info)
+		elif expr[1][0] == 'struct':
+			val = {}
 		name = e[1]
 		new_val(name, val, info)
 	return None
@@ -643,7 +659,7 @@ def do_expr(expr, info):
 	if k == 'type':
 		return do_type(expr, info)
 
-	if k in [ 'fproto', 'etc', 'fdef' ]:  # do nothing !!!
+	if k in [ 'fproto', 'etc', 'fdef', 'sdef' ]:  # do nothing !!!
 		return None
 
 	warn_no_sup('do_expr', '[k, v]', [k, v])