diff --git a/src/kyupy/def_file.py b/src/kyupy/def_file.py
index 5275d74..ac66f1b 100644
--- a/src/kyupy/def_file.py
+++ b/src/kyupy/def_file.py
@@ -6,7 +6,7 @@ as an intermediate representation (:class:`DefFile` object).
 
 from collections import defaultdict
 
-from lark import Lark, Transformer, Tree
+from lark import Lark, Transformer
 
 from kyupy import readtext
 
@@ -85,6 +85,8 @@ class DefFile:
         self.pins = {}
         self.specialnets = {}
         self.nets = {}
+        self.design = ""
+        self.diearea = 0
 
 
 class DefTransformer(Transformer):
@@ -140,9 +142,11 @@ class DefTransformer(Transformer):
     def comp_stmt(self, args):
         name = args[0].value
         kind = args[1].value
-        point = args[2]
-        orientation = args[3].value
-        self.def_file.components[name] = (kind, point, orientation)
+        for aidx in range(2, len(args)):
+            if args[aidx] in ('PLACED', 'FIXED'):
+                point = args[aidx+1]
+                orientation = args[aidx+2].value
+                self.def_file.components[name] = (kind, point, orientation)
 
     def pins_stmt(self, args):
         pin = DefPin(args[0].value)
@@ -207,6 +211,7 @@ GRAMMAR = r"""
                 | /DIEAREA/ point+ ";"
                 | /ROW/ ID ID NUMBER NUMBER ID do_step ";"
                 | /TRACKS/ /[XY]/ NUMBER "DO" NUMBER "STEP" NUMBER "LAYER" ID ";"
+                | /GCELLGRID/ /[XY]/ NUMBER "DO" NUMBER "STEP" NUMBER ";"
                 | propdef | vias | nondef | comp | pins | pinprop | spnets | nets
 
     propdef: "PROPERTYDEFINITIONS" propdef_stmt* "END" "PROPERTYDEFINITIONS"
@@ -228,7 +233,9 @@ GRAMMAR = r"""
                         | "+" /VIA/ ID )* ";"
 
     comp: "COMPONENTS" NUMBER ";" comp_stmt* "END" "COMPONENTS"
-    comp_stmt: "-" ID ID "+" "PLACED" point ID ";"
+    comp_stmt: "-" ID ID ( "+" /PLACED/ point ID
+                         | "+" /FIXED/ point ID
+                         | "+" /SOURCE/ ID )* ";"
 
     pins: "PINS" NUMBER ";" pins_stmt* "END" "PINS"
     pins_stmt: "-" ID pins_opt* ";"
@@ -239,6 +246,8 @@ GRAMMAR = r"""
             | "+" /PORT/
             | "+" /LAYER/ ID point point
             | "+" /PLACED/ point ID
+            | "+" /FIXED/ point ID
+
 
     pinprop: "PINPROPERTIES" NUMBER ";" pinprop_stmt* "END" "PINPROPERTIES"
     pinprop_stmt: "-" "PIN" ID "+" "PROPERTY" ID STRING ";"
@@ -266,10 +275,10 @@ GRAMMAR = r"""
     wire: ID wire_opt points
     wire_opt: ( "TAPER" | "TAPERRULE" ID )? ("STYLE" ID)?
 
-    points: point ( point | points_via )+
-    points_via: ID ORIENTATION?
+    points: point ( point | points_via_or_rect )+
+    points_via_or_rect: ID ( ORIENTATION? | "(" (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) ")" )
 
-    point: "(" (NUMBER|/\*/) (NUMBER|/\*/) NUMBER? ")"
+    point: "(" (NUMBER|SIGNED_NUMBER|/\*/) (NUMBER|SIGNED_NUMBER|/\*/) NUMBER? ")"
 
     do_step: "DO" NUMBER "BY" NUMBER "STEP" (NUMBER|SIGNED_NUMBER) (NUMBER|SIGNED_NUMBER)
 
@@ -284,9 +293,9 @@ GRAMMAR = r"""
     """
 
 
-def parse(text):
+def parse(text) -> DefFile:
     """Parses the given ``text`` and returns a :class:`DefFile` object."""
-    return Lark(GRAMMAR, parser="lalr", transformer=DefTransformer()).parse(text)
+    return Lark(GRAMMAR, parser="lalr", transformer=DefTransformer()).parse(text) # type: ignore
 
 
 def load(file):