Rename pp to pp_hexdump; provide pp for brevity (requested by @palainp)

CHANGES.md

@@ -1,3 +1,8 @@
+## v0.2.0 (2024-03-18)
+
+* Rename pp to pp_hexdump
+* Add a pp which just prints the hex with some spaces, but no newlines
+
 ## v0.1.0 (2024-03-14)
 
 * Initial release

ohex.ml

@@ -78,7 +78,16 @@ let printable_ascii c =
   let i = int_of_char c in
   not (i < 0x20 || i >= 0x7f)
 
-let pp ?(row_numbers = true) ?(chars = true) () ppf s =
+let pp ppf s =
+  String.iteri (fun idx c ->
+      Format.fprintf ppf "%02x" (int_of_char c);
+      if idx mod 2 = 1 then
+        Format.pp_print_string ppf " ";
+      if idx mod 8 = 7 then
+        Format.pp_print_string ppf " ")
+    s
+
+let pp_hexdump ?(row_numbers = true) ?(chars = true) () ppf s =
   String.iteri (fun idx c ->
       if idx mod 16 = 0 && row_numbers then
         Format.fprintf ppf "%06x  " idx;

ohex.mli

@@ -41,9 +41,13 @@ val encode_into : string -> bytes -> ?off:int -> unit -> unit
 
     @raise Invalid_argument if [dst] does not contain enough space. *)
 
-val pp : ?row_numbers:bool -> ?chars:bool -> unit ->
+val pp : Format.formatter -> string -> unit
+(** [pp ppf s] pretty-prints the string [s] in hexadecimal. Some spaces are
+    emitted for easier readability. No newline is emitted. *)
+
+val pp_hexdump : ?row_numbers:bool -> ?chars:bool -> unit ->
   Format.formatter -> string -> unit
-(** [pp ~row_numbers ~chars () ppf s] pretty-prints the string [s] in
+(** [pp_hexdump ~row_numbers ~chars () ppf s] pretty-prints the string [s] in
     hexadecimal (similar to [hexdump -C]). If [row_numbers] is provided
     (defaults to [true]), each output line is prefixed with the row number.
     If [chars] is provided (defaults to [true]), in the last column the ASCII