diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/util.ml | 11 | ||||
| -rw-r--r-- | lib/util.mli | 3 |
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/util.ml b/lib/util.ml index a8c25f7456..a20dba0fc4 100644 --- a/lib/util.ml +++ b/lib/util.ml @@ -132,3 +132,14 @@ let map_union f g = function type iexn = Exninfo.iexn let iraise = Exninfo.iraise + +let open_utf8_file_in fname = + let is_bom s = + Int.equal (Char.code s.[0]) 0xEF && + Int.equal (Char.code s.[1]) 0xBB && + Int.equal (Char.code s.[2]) 0xBF + in + let in_chan = open_in fname in + let s = " " in + if input in_chan s 0 3 < 3 || not (is_bom s) then seek_in in_chan 0; + in_chan diff --git a/lib/util.mli b/lib/util.mli index 4fce809c2c..1dc405fcbe 100644 --- a/lib/util.mli +++ b/lib/util.mli @@ -110,3 +110,6 @@ val map_union : ('a -> 'c) -> ('b -> 'd) -> ('a, 'b) union -> ('c, 'd) union type 'a until = 'a CSig.until = Stop of 'a | Cont of 'a (** Used for browsable-until structures. *) + +val open_utf8_file_in : string -> in_channel +(** Open an utf-8 encoded file and skip the byte-order mark if any. *) |