%% Copyright (c) 2014-2018, Loïc Hoguin <essen@ninenines.eu>
%%
%% Permission to use, copy, modify, and/or distribute this software for any
%% purpose with or without fee is hereby granted, provided that the above
%% copyright notice and this permission notice appear in all copies.
%%
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

-ifndef(COW_INLINE_HRL).
-define(COW_INLINE_HRL, 1).

%% LC(Character)

-define(LC(C), case C of
                  $A -> $a;
                  $B -> $b;
                  $C -> $c;
                  $D -> $d;
                  $E -> $e;
                  $F -> $f;
                  $G -> $g;
                  $H -> $h;
                  $I -> $i;
                  $J -> $j;
                  $K -> $k;
                  $L -> $l;
                  $M -> $m;
                  $N -> $n;
                  $O -> $o;
                  $P -> $p;
                  $Q -> $q;
                  $R -> $r;
                  $S -> $s;
                  $T -> $t;
                  $U -> $u;
                  $V -> $v;
                  $W -> $w;
                  $X -> $x;
                  $Y -> $y;
                  $Z -> $z;
                  _ -> C
               end).

%% LOWER(Bin)
%%
%% Lowercase the entire binary string in a binary comprehension.

-define(LOWER(Bin), <<<<?LC(C)>> || <<C>> <= Bin>>).

%% LOWERCASE(Function, Rest, Acc, ...)
%%
%% To be included at the end of a case block.
%% Defined for up to 10 extra arguments.

-define(LOWER(Function, Rest, Acc), case C of
                                       $A -> Function(Rest, <<Acc/binary, $a>>);
                                       $B -> Function(Rest, <<Acc/binary, $b>>);
                                       $C -> Function(Rest, <<Acc/binary, $c>>);
                                       $D -> Function(Rest, <<Acc/binary, $d>>);
                                       $E -> Function(Rest, <<Acc/binary, $e>>);
                                       $F -> Function(Rest, <<Acc/binary, $f>>);
                                       $G -> Function(Rest, <<Acc/binary, $g>>);
                                       $H -> Function(Rest, <<Acc/binary, $h>>);
                                       $I -> Function(Rest, <<Acc/binary, $i>>);
                                       $J -> Function(Rest, <<Acc/binary, $j>>);
                                       $K -> Function(Rest, <<Acc/binary, $k>>);
                                       $L -> Function(Rest, <<Acc/binary, $l>>);
                                       $M -> Function(Rest, <<Acc/binary, $m>>);
                                       $N -> Function(Rest, <<Acc/binary, $n>>);
                                       $O -> Function(Rest, <<Acc/binary, $o>>);
                                       $P -> Function(Rest, <<Acc/binary, $p>>);
                                       $Q -> Function(Rest, <<Acc/binary, $q>>);
                                       $R -> Function(Rest, <<Acc/binary, $r>>);
                                       $S -> Function(Rest, <<Acc/binary, $s>>);
                                       $T -> Function(Rest, <<Acc/binary, $t>>);
                                       $U -> Function(Rest, <<Acc/binary, $u>>);
                                       $V -> Function(Rest, <<Acc/binary, $v>>);
                                       $W -> Function(Rest, <<Acc/binary, $w>>);
                                       $X -> Function(Rest, <<Acc/binary, $x>>);
                                       $Y -> Function(Rest, <<Acc/binary, $y>>);
                                       $Z -> Function(Rest, <<Acc/binary, $z>>);
                                       C -> Function(Rest, <<Acc/binary, C>>)
                                    end).

-define(LOWER(Function, Rest, A0, Acc), case C of
                                           $A -> Function(Rest, A0, <<Acc/binary, $a>>);
                                           $B -> Function(Rest, A0, <<Acc/binary, $b>>);
                                           $C -> Function(Rest, A0, <<Acc/binary, $c>>);
                                           $D -> Function(Rest, A0, <<Acc/binary, $d>>);
                                           $E -> Function(Rest, A0, <<Acc/binary, $e>>);
                                           $F -> Function(Rest, A0, <<Acc/binary, $f>>);
                                           $G -> Function(Rest, A0, <<Acc/binary, $g>>);
                                           $H -> Function(Rest, A0, <<Acc/binary, $h>>);
                                           $I -> Function(Rest, A0, <<Acc/binary, $i>>);
                                           $J -> Function(Rest, A0, <<Acc/binary, $j>>);
                                           $K -> Function(Rest, A0, <<Acc/binary, $k>>);
                                           $L -> Function(Rest, A0, <<Acc/binary, $l>>);
                                           $M -> Function(Rest, A0, <<Acc/binary, $m>>);
                                           $N -> Function(Rest, A0, <<Acc/binary, $n>>);
                                           $O -> Function(Rest, A0, <<Acc/binary, $o>>);
                                           $P -> Function(Rest, A0, <<Acc/binary, $p>>);
                                           $Q -> Function(Rest, A0, <<Acc/binary, $q>>);
                                           $R -> Function(Rest, A0, <<Acc/binary, $r>>);
                                           $S -> Function(Rest, A0, <<Acc/binary, $s>>);
                                           $T -> Function(Rest, A0, <<Acc/binary, $t>>);
                                           $U -> Function(Rest, A0, <<Acc/binary, $u>>);
                                           $V -> Function(Rest, A0, <<Acc/binary, $v>>);
                                           $W -> Function(Rest, A0, <<Acc/binary, $w>>);
                                           $X -> Function(Rest, A0, <<Acc/binary, $x>>);
                                           $Y -> Function(Rest, A0, <<Acc/binary, $y>>);
                                           $Z -> Function(Rest, A0, <<Acc/binary, $z>>);
                                           C -> Function(Rest, A0, <<Acc/binary, C>>)
                                        end).

-define(LOWER(Function, Rest, A0, A1, Acc), case C of
                                               $A -> Function(Rest, A0, A1, <<Acc/binary, $a>>);
                                               $B -> Function(Rest, A0, A1, <<Acc/binary, $b>>);
                                               $C -> Function(Rest, A0, A1, <<Acc/binary, $c>>);
                                               $D -> Function(Rest, A0, A1, <<Acc/binary, $d>>);
                                               $E -> Function(Rest, A0, A1, <<Acc/binary, $e>>);
                                               $F -> Function(Rest, A0, A1, <<Acc/binary, $f>>);
                                               $G -> Function(Rest, A0, A1, <<Acc/binary, $g>>);
                                               $H -> Function(Rest, A0, A1, <<Acc/binary, $h>>);
                                               $I -> Function(Rest, A0, A1, <<Acc/binary, $i>>);
                                               $J -> Function(Rest, A0, A1, <<Acc/binary, $j>>);
                                               $K -> Function(Rest, A0, A1, <<Acc/binary, $k>>);
                                               $L -> Function(Rest, A0, A1, <<Acc/binary, $l>>);
                                               $M -> Function(Rest, A0, A1, <<Acc/binary, $m>>);
                                               $N -> Function(Rest, A0, A1, <<Acc/binary, $n>>);
                                               $O -> Function(Rest, A0, A1, <<Acc/binary, $o>>);
                                               $P -> Function(Rest, A0, A1, <<Acc/binary, $p>>);
                                               $Q -> Function(Rest, A0, A1, <<Acc/binary, $q>>);
                                               $R -> Function(Rest, A0, A1, <<Acc/binary, $r>>);
                                               $S -> Function(Rest, A0, A1, <<Acc/binary, $s>>);
                                               $T -> Function(Rest, A0, A1, <<Acc/binary, $t>>);
                                               $U -> Function(Rest, A0, A1, <<Acc/binary, $u>>);
                                               $V -> Function(Rest, A0, A1, <<Acc/binary, $v>>);
                                               $W -> Function(Rest, A0, A1, <<Acc/binary, $w>>);
                                               $X -> Function(Rest, A0, A1, <<Acc/binary, $x>>);
                                               $Y -> Function(Rest, A0, A1, <<Acc/binary, $y>>);
                                               $Z -> Function(Rest, A0, A1, <<Acc/binary, $z>>);
                                               C -> Function(Rest, A0, A1, <<Acc/binary, C>>)
                                            end).

-define(LOWER(Function, Rest, A0, A1, A2, Acc), case C of
                                                   $A -> Function(Rest, A0, A1, A2, <<Acc/binary, $a>>);
                                                   $B -> Function(Rest, A0, A1, A2, <<Acc/binary, $b>>);
                                                   $C -> Function(Rest, A0, A1, A2, <<Acc/binary, $c>>);
                                                   $D -> Function(Rest, A0, A1, A2, <<Acc/binary, $d>>);
                                                   $E -> Function(Rest, A0, A1, A2, <<Acc/binary, $e>>);
                                                   $F -> Function(Rest, A0, A1, A2, <<Acc/binary, $f>>);
                                                   $G -> Function(Rest, A0, A1, A2, <<Acc/binary, $g>>);
                                                   $H -> Function(Rest, A0, A1, A2, <<Acc/binary, $h>>);
                                                   $I -> Function(Rest, A0, A1, A2, <<Acc/binary, $i>>);
                                                   $J -> Function(Rest, A0, A1, A2, <<Acc/binary, $j>>);
                                                   $K -> Function(Rest, A0, A1, A2, <<Acc/binary, $k>>);
                                                   $L -> Function(Rest, A0, A1, A2, <<Acc/binary, $l>>);
                                                   $M -> Function(Rest, A0, A1, A2, <<Acc/binary, $m>>);
                                                   $N -> Function(Rest, A0, A1, A2, <<Acc/binary, $n>>);
                                                   $O -> Function(Rest, A0, A1, A2, <<Acc/binary, $o>>);
                                                   $P -> Function(Rest, A0, A1, A2, <<Acc/binary, $p>>);
                                                   $Q -> Function(Rest, A0, A1, A2, <<Acc/binary, $q>>);
                                                   $R -> Function(Rest, A0, A1, A2, <<Acc/binary, $r>>);
                                                   $S -> Function(Rest, A0, A1, A2, <<Acc/binary, $s>>);
                                                   $T -> Function(Rest, A0, A1, A2, <<Acc/binary, $t>>);
                                                   $U -> Function(Rest, A0, A1, A2, <<Acc/binary, $u>>);
                                                   $V -> Function(Rest, A0, A1, A2, <<Acc/binary, $v>>);
                                                   $W -> Function(Rest, A0, A1, A2, <<Acc/binary, $w>>);
                                                   $X -> Function(Rest, A0, A1, A2, <<Acc/binary, $x>>);
                                                   $Y -> Function(Rest, A0, A1, A2, <<Acc/binary, $y>>);
                                                   $Z -> Function(Rest, A0, A1, A2, <<Acc/binary, $z>>);
                                                   C -> Function(Rest, A0, A1, A2, <<Acc/binary, C>>)
                                                end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, Acc), case C of
                                                       $A -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $a>>);
                                                       $B -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $b>>);
                                                       $C -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $c>>);
                                                       $D -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $d>>);
                                                       $E -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $e>>);
                                                       $F -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $f>>);
                                                       $G -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $g>>);
                                                       $H -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $h>>);
                                                       $I -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $i>>);
                                                       $J -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $j>>);
                                                       $K -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $k>>);
                                                       $L -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $l>>);
                                                       $M -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $m>>);
                                                       $N -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $n>>);
                                                       $O -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $o>>);
                                                       $P -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $p>>);
                                                       $Q -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $q>>);
                                                       $R -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $r>>);
                                                       $S -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $s>>);
                                                       $T -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $t>>);
                                                       $U -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $u>>);
                                                       $V -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $v>>);
                                                       $W -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $w>>);
                                                       $X -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $x>>);
                                                       $Y -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $y>>);
                                                       $Z -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, $z>>);
                                                       C -> Function(Rest, A0, A1, A2, A3, <<Acc/binary, C>>)
                                                    end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, Acc), case C of
                                                           $A -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $a>>);
                                                           $B -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $b>>);
                                                           $C -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $c>>);
                                                           $D -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $d>>);
                                                           $E -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $e>>);
                                                           $F -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $f>>);
                                                           $G -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $g>>);
                                                           $H -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $h>>);
                                                           $I -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $i>>);
                                                           $J -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $j>>);
                                                           $K -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $k>>);
                                                           $L -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $l>>);
                                                           $M -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $m>>);
                                                           $N -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $n>>);
                                                           $O -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $o>>);
                                                           $P -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $p>>);
                                                           $Q -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $q>>);
                                                           $R -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $r>>);
                                                           $S -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $s>>);
                                                           $T -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $t>>);
                                                           $U -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $u>>);
                                                           $V -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $v>>);
                                                           $W -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $w>>);
                                                           $X -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $x>>);
                                                           $Y -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $y>>);
                                                           $Z -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, $z>>);
                                                           C -> Function(Rest, A0, A1, A2, A3, A4, <<Acc/binary, C>>)
                                                        end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, A5, Acc), case C of
                                                               $A ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $a>>);
                                                               $B ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $b>>);
                                                               $C ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $c>>);
                                                               $D ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $d>>);
                                                               $E ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $e>>);
                                                               $F ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $f>>);
                                                               $G ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $g>>);
                                                               $H ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $h>>);
                                                               $I ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $i>>);
                                                               $J ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $j>>);
                                                               $K ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $k>>);
                                                               $L ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $l>>);
                                                               $M ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $m>>);
                                                               $N ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $n>>);
                                                               $O ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $o>>);
                                                               $P ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $p>>);
                                                               $Q ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $q>>);
                                                               $R ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $r>>);
                                                               $S ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $s>>);
                                                               $T ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $t>>);
                                                               $U ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $u>>);
                                                               $V ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $v>>);
                                                               $W ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $w>>);
                                                               $X ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $x>>);
                                                               $Y ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $y>>);
                                                               $Z ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, $z>>);
                                                               C ->
                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, <<Acc/binary, C>>)
                                                            end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, A5, A6, Acc), case C of
                                                                   $A ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $a>>);
                                                                   $B ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $b>>);
                                                                   $C ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $c>>);
                                                                   $D ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $d>>);
                                                                   $E ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $e>>);
                                                                   $F ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $f>>);
                                                                   $G ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $g>>);
                                                                   $H ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $h>>);
                                                                   $I ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $i>>);
                                                                   $J ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $j>>);
                                                                   $K ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $k>>);
                                                                   $L ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $l>>);
                                                                   $M ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $m>>);
                                                                   $N ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $n>>);
                                                                   $O ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $o>>);
                                                                   $P ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $p>>);
                                                                   $Q ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $q>>);
                                                                   $R ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $r>>);
                                                                   $S ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $s>>);
                                                                   $T ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $t>>);
                                                                   $U ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $u>>);
                                                                   $V ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $v>>);
                                                                   $W ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $w>>);
                                                                   $X ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $x>>);
                                                                   $Y ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $y>>);
                                                                   $Z ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, $z>>);
                                                                   C ->
                                                                      Function(Rest, A0, A1, A2, A3, A4, A5, A6, <<Acc/binary, C>>)
                                                                end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, A5, A6, A7, Acc), case C of
                                                                       $A ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $a>>);
                                                                       $B ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $b>>);
                                                                       $C ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $c>>);
                                                                       $D ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $d>>);
                                                                       $E ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $e>>);
                                                                       $F ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $f>>);
                                                                       $G ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $g>>);
                                                                       $H ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $h>>);
                                                                       $I ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $i>>);
                                                                       $J ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $j>>);
                                                                       $K ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $k>>);
                                                                       $L ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $l>>);
                                                                       $M ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $m>>);
                                                                       $N ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $n>>);
                                                                       $O ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $o>>);
                                                                       $P ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $p>>);
                                                                       $Q ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $q>>);
                                                                       $R ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $r>>);
                                                                       $S ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $s>>);
                                                                       $T ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $t>>);
                                                                       $U ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $u>>);
                                                                       $V ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $v>>);
                                                                       $W ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $w>>);
                                                                       $X ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $x>>);
                                                                       $Y ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $y>>);
                                                                       $Z ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, $z>>);
                                                                       C ->
                                                                          Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, <<Acc/binary, C>>)
                                                                    end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, Acc), case C of
                                                                           $A ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $a>>);
                                                                           $B ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $b>>);
                                                                           $C ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $c>>);
                                                                           $D ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $d>>);
                                                                           $E ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $e>>);
                                                                           $F ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $f>>);
                                                                           $G ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $g>>);
                                                                           $H ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $h>>);
                                                                           $I ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $i>>);
                                                                           $J ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $j>>);
                                                                           $K ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $k>>);
                                                                           $L ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $l>>);
                                                                           $M ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $m>>);
                                                                           $N ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $n>>);
                                                                           $O ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $o>>);
                                                                           $P ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $p>>);
                                                                           $Q ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $q>>);
                                                                           $R ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $r>>);
                                                                           $S ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $s>>);
                                                                           $T ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $t>>);
                                                                           $U ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $u>>);
                                                                           $V ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $v>>);
                                                                           $W ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $w>>);
                                                                           $X ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $x>>);
                                                                           $Y ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $y>>);
                                                                           $Z ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, $z>>);
                                                                           C ->
                                                                              Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, <<Acc/binary, C>>)
                                                                        end).

-define(LOWER(Function, Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, Acc), case C of
                                                                               $A ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $a>>);
                                                                               $B ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $b>>);
                                                                               $C ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $c>>);
                                                                               $D ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $d>>);
                                                                               $E ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $e>>);
                                                                               $F ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $f>>);
                                                                               $G ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $g>>);
                                                                               $H ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $h>>);
                                                                               $I ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $i>>);
                                                                               $J ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $j>>);
                                                                               $K ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $k>>);
                                                                               $L ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $l>>);
                                                                               $M ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $m>>);
                                                                               $N ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $n>>);
                                                                               $O ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $o>>);
                                                                               $P ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $p>>);
                                                                               $Q ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $q>>);
                                                                               $R ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $r>>);
                                                                               $S ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $s>>);
                                                                               $T ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $t>>);
                                                                               $U ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $u>>);
                                                                               $V ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $v>>);
                                                                               $W ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $w>>);
                                                                               $X ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $x>>);
                                                                               $Y ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $y>>);
                                                                               $Z ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, $z>>);
                                                                               C ->
                                                                                  Function(Rest, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, <<Acc/binary, C>>)
                                                                            end).

%% HEX(C)

-define(HEX(C), (?HEXHL(C bsr 4)), (?HEXHL(C band 16#0f))).

-define(HEXHL(HL),
   case HL of
      0 -> $0;
      1 -> $1;
      2 -> $2;
      3 -> $3;
      4 -> $4;
      5 -> $5;
      6 -> $6;
      7 -> $7;
      8 -> $8;
      9 -> $9;
      10 -> $A;
      11 -> $B;
      12 -> $C;
      13 -> $D;
      14 -> $E;
      15 -> $F
   end
).

%% UNHEX(H, L)

-define(UNHEX(H, L), (?UNHEX(H) bsl 4 bor ?UNHEX(L))).

-define(UNHEX(C),
   case C of
      $0 -> 0;
      $1 -> 1;
      $2 -> 2;
      $3 -> 3;
      $4 -> 4;
      $5 -> 5;
      $6 -> 6;
      $7 -> 7;
      $8 -> 8;
      $9 -> 9;
      $A -> 10;
      $B -> 11;
      $C -> 12;
      $D -> 13;
      $E -> 14;
      $F -> 15;
      $a -> 10;
      $b -> 11;
      $c -> 12;
      $d -> 13;
      $e -> 14;
      $f -> 15
   end
).

-endif.