remote resources fetched via HTTP GET requests *)
val http_get_iter_buf: callback:(string -> unit) -> string -> unit
+ (** add a line to a file (specified by name) _after_ a given line (defaults to
+ last line). *)
+val add_line: fname:string -> ?position:int -> string -> unit
+ (** remove a line, if any, from a file specified by line number (0 based, i.e.
+ first line of file is line 0) *)
+val remove_line: fname:string -> int -> unit
+
+ (** true on blanks-only and #-commented lines, false otherwise *)
+val is_blank_line: string -> bool
+