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Add new hlist module
[SXSI/xpathcomp.git]
/
tag.ml
diff --git
a/tag.ml
b/tag.ml
index
057f09d
..
c500dab
100644
(file)
--- a/
tag.ml
+++ b/
tag.ml
@@
-35,10
+35,22
@@
let tag s = match s with
let compare = (-)
let equal = (==)
let compare = (-)
let equal = (==)
+
+let hash x = x
+
+
let to_string t =
let to_string t =
- if t = pcdata then "<$>"
- else if t = attribute then "<@>"
+ if t == pcdata then "<$>"
+ else if t == attribute then "<@>"
+ else if t == nullt then "<!NIL!>"
else tag_name (get_pool()) t
let print ppf t = Format.fprintf ppf "%s" (to_string t)
else tag_name (get_pool()) t
let print ppf t = Format.fprintf ppf "%s" (to_string t)
+(* Check internal invariants *)
+let check t =
+ if (t != tag (to_string t))
+ then failwith "module Tag: internal check failed"
+
+let dump = print
+