diff --git a/jdr/sheet.go b/jdr/sheet.go
index 835ed98..002599d 100644
--- a/jdr/sheet.go
+++ b/jdr/sheet.go
@@ -12,17 +12,26 @@ type Page struct {
     Items []SheetItem
 }
 
-type SheetItem interface{
+type SheetItem interface {
+    Name() string
 }
 
 type Block struct {
-    Name  string
+    name  string
     Items []SheetItem
 }
 
+func (self *Block) Name() string {
+    return self.name
+}
+
 type Variable struct {
     Type VariableType
-    Name string
+    name string
+}
+
+func (self *Variable) Name() string {
+    return self.name
 }
 
 type CharacterSheet struct {
@@ -99,7 +108,7 @@ func parseVariable(root xmlNode, sheet *CharacterSheet, defaults *Variable) (*Va
             ret.Type = t
             typeOk = true
         case "name":
-            ret.Name = attrVal
+            ret.name = attrVal
             nameOk = true
         }
     }
@@ -108,7 +117,7 @@ func parseVariable(root xmlNode, sheet *CharacterSheet, defaults *Variable) (*Va
         return nil, errors.New("Unnamed variable")
     }
     if !typeOk {
-        return nil, errors.New("No type provided for variable \"" + ret.Name + "\"")
+        return nil, errors.New("No type provided for variable \"" + ret.Name() + "\"")
     }
 
     return ret, nil
@@ -123,17 +132,19 @@ func parseBlock(root xmlNode, sheet *CharacterSheet) (*Block, error) {
 
         switch attrName {
         case "name":
-            ret.Name = attrVal
+            ret.name = attrVal
         }
     }
 
     for i := 0; i < len(root.Nodes); i++ {
-        item, err := parseItem(root.Nodes[i], sheet)
+        items, err := parseItem(root.Nodes[i], sheet)
         if err != nil {
             return nil, err
         }
 
-        ret.Items = append(ret.Items, item)
+        for _, item := range(items) {
+            ret.Items = append(ret.Items, item)
+        }
     }
 
     return ret, nil
@@ -233,12 +244,14 @@ func parsePage(root xmlNode, sheet *CharacterSheet) (*Page, error) {
     ret := &Page{}
 
     for i := 0; i < len(root.Nodes); i++ {
-        item, err := parseItem(root.Nodes[i], sheet)
+        items, err := parseItem(root.Nodes[i], sheet)
         if err != nil {
             return nil, err
         }
 
-        ret.Items = append(ret.Items, item)
+        for _, item := range(items) {
+            ret.Items = append(ret.Items, item)
+        }
     }
 
     return ret, nil
diff --git a/jdr/type.go b/jdr/type.go
index b0bd737..93aaf6f 100644
--- a/jdr/type.go
+++ b/jdr/type.go
@@ -4,12 +4,11 @@ import(
     "log"
     "errors"
     "strings"
+    "strconv"
     "regexp"
 )
 
-var regexp_int   = regexp.MustCompile(`^[0-9]+$`)
-var regexp_float = regexp.MustCompile(`^[+-]?[0-9]*\.[0-9]+$`)
-var regexp_d     = regexp.MustCompile(`^[1-9][0-9]*d([468]|1[02]|20|100)$`)
+var regexp_d = regexp.MustCompile(`^[1-9][0-9]*d([468]|1[02]|20|100)$`)
 
 type VariableType interface {
     Name() string
@@ -32,25 +31,35 @@ func (*VariableType_bool) Name() string {
     return "bool"
 }
 
-func (*VariableType_bool) Validate(s string) bool {
-    switch strings.ToLower(s) {
+func (*VariableType_bool) ToBool(value string) (bool, error) {
+    switch strings.ToLower(value) {
     case "true":
-        return true
+        return true, nil
     case "false":
-        return true
+        return false, nil
     default:
-        return false
+        return false, errors.New("unknown bool value")
     }
 }
 
+func (self *VariableType_bool) Validate(value string) bool {
+    _, err := self.ToBool(value)
+    return err == nil
+}
+
 type VariableType_int struct {}
 
 func (*VariableType_int) Name() string {
     return "int"
 }
 
-func (*VariableType_int) Validate(s string) bool {
-    return regexp_int.MatchString(s)
+func (self *VariableType_int) ToInt(value string) (int64, error) {
+    return strconv.ParseInt(value, 10, 64)
+}
+
+func (self *VariableType_int) Validate(value string) bool {
+    _, err := self.ToInt(value)
+    return err == nil
 }
 
 type VariableType_float struct {}
@@ -59,8 +68,13 @@ func (*VariableType_float) Name() string {
     return "float"
 }
 
-func (*VariableType_float) Validate(s string) bool {
-    return regexp_float.MatchString(s)
+func (*VariableType_float) ToFloat(value string) (float64, error) {
+    return strconv.ParseFloat(value, 64)
+}
+
+func (self *VariableType_float) Validate(value string) bool {
+    _, err := self.ToFloat(value)
+    return err == nil
 }
 
 type VariableType_string struct {}