diff --git a/bristlecode.rb b/bristlecode.rb
index c668e5e..4dc540f 100644
--- a/bristlecode.rb
+++ b/bristlecode.rb
@@ -13,40 +13,24 @@ module Bristlecode
     rule(:space) { match('\s').repeat(1) }
     rule(:space?) { space.maybe }
 
-    rule(:bold_open) {
-      (str('[b]') | str('[B]'))
-    }
-    rule(:bold_close) {
-      (str('[/b]') | str('[/B]'))
-    }
-    rule(:bold) {
-      (bold_open >> children.as(:bold) >> bold_close)
-    }
-
-    rule(:italic_open) {
-      (str('[i]') | str('[I]'))
-    }
-    rule(:italic_close) {
-      (str('[/i]') | str('[/I]'))
-    }
-    rule(:italic) {
-      (italic_open >> children.as(:italic) >> italic_close)
-    }
+    rule(:bold_open) { str('[b]') | str('[B]') }
+    rule(:bold_close) { str('[/b]') | str('[/B]') }
+    rule(:bold) { bold_open >> children.as(:bold) >> bold_close }
+
+    rule(:italic_open) { str('[i]') | str('[I]') }
+    rule(:italic_close) { str('[/i]') | str('[/I]') }
+    rule(:italic) { italic_open >> children.as(:italic) >> italic_close }
 
     rule(:eof) { any.absent? }
-    rule(:tag) { (bold | italic) }
+    rule(:tag) { bold | italic }
     rule(:elem) { text | tag }
     rule(:tag_open) { bold_open | italic_open }
     rule(:tag_close) { bold_close | italic_close }
     rule(:tag_delim) { tag_open | tag_close }
 
     rule(:text) { (tag_delim.absent? >> any).repeat(1).as(:text) }
-    rule(:children) {
-      space? >> elem.repeat(1)
-    }
-    rule(:doc) {
-      space? >> elem.repeat(1).as(:doc)
-    }
+    rule(:children) { space? >> elem.repeat(1) }
+    rule(:doc) { space? >> elem.repeat(1).as(:doc) }
     root(:doc)
   end