diff --git a/jieba/posseg/__init__.py b/jieba/posseg/__init__.py
index c3cae77..ef247e1 100644
--- a/jieba/posseg/__init__.py
+++ b/jieba/posseg/__init__.py
@@ -65,7 +65,7 @@ def __cut(sentence):
 		yield pair(sentence[next:], pos_list[next][1] )
 
 def __cut_detail(sentence):
-	re_han, re_skip = re.compile(ur"([\u4E00-\u9FA5]+)"), re.compile(ur"[^a-zA-Z0-9+#\r\n]")
+	re_han, re_skip = re.compile(ur"([\u4E00-\u9FA5]+)"), re.compile(ur"([a-zA-Z0-9]+)")
 	re_eng,re_num = re.compile(ur"[a-zA-Z+#]+"), re.compile(ur"[0-9]+")
 	blocks = re_han.split(sentence)
 	for blk in blocks:
@@ -125,7 +125,7 @@ def cut(sentence):
 			sentence = sentence.decode('utf-8')
 		except:
 			sentence = sentence.decode('gbk','ignore')
-	re_han, re_skip = re.compile(ur"([\u4E00-\u9FA5a-zA-Z0-9+#]+)"), re.compile(ur"[^\r\n]")
+	re_han, re_skip = re.compile(ur"([\u4E00-\u9FA5a-zA-Z0-9+#&]+)"), re.compile(ur"[ ]")
 	re_eng,re_num = re.compile(ur"[a-zA-Z+#]+"), re.compile(ur"[0-9]+")
 	blocks = re_han.split(sentence)
 	for blk in blocks: