diff --git a/yaml.jsf b/yaml.jsf
index aac9a11..fc730ca 100644
--- a/yaml.jsf
+++ b/yaml.jsf
@@ -14,6 +14,8 @@
 =LocalType	fg_310 # brown
 =BlockDelim	bold blue
 
+=URL		cyan
+
 :idle Idle
 	*		idle
 	"%"		directive	recolor=-1
@@ -25,6 +27,7 @@
 	"."		maybe_block_end1
 	"*&"		maybe_reference
 	"!"		maybe_typecast
+	"a-zA-Z_"	maybe_url	mark buffer
 
 :line_comment Comment
 	*		line_comment
@@ -94,19 +97,19 @@
 :maybe_typecast Idle
 	*		idle		noeat
 	"a-zA-Z_"	local_type	recolor=-1
-	"!"		builtin_type1
-
-:builtin_type1 Idle
-	*		idle		noeat
-	"a-zA-Z"	builtin_type	buffer
+	"!"		builtin_type
 
 :builtin_type Idle
+	*		idle		noeat
+	"a-zA-Z"	builtin_type2	buffer
+
+:builtin_type2 Idle
 	*		idle		noeat strings
 	"str"		type
 	"float"		type
 	"binary"	type
 done
-	"a-zA-Z_"	builtin_type
+	"a-zA-Z_"	builtin_type2
 
 :type Type
 	*		idle		noeat
@@ -114,3 +117,33 @@ done
 :local_type LocalType
 	*		idle		noeat
 	"a-zA-Z_"	local_type
+
+:maybe_url Idle
+	*		url_scheme_unkwn	noeat strings
+	"ftp"		maybe_url2
+	"http"		maybe_url2
+	"https"		maybe_url2
+done
+	"a-zA-Z"	maybe_url
+
+:url_scheme_unkwn Idle
+	*		idle		noeat markend
+
+:maybe_url2 Idle
+	*		idle		noeat markend
+	":"		maybe_url3
+
+:maybe_url3 Idle
+	*		idle		noeat markend
+	"/"		maybe_url4
+
+:maybe_url4 Idle
+	*		idle		noeat markend
+	"/"		url
+
+:url Idle
+	*		url
+	" \t\r\n"	url_end		recolormark noeat
+
+:url_end URL
+	*		idle		noeat