From 49fa5aa2a127bdf8924d02bf77e5086b39c7a447 Mon Sep 17 00:00:00 2001
From: Calvin Morrison <calvin@pobox.com>
Date: Wed, 3 Sep 2025 21:15:36 -0400
Subject: i vibe coded it

---
 .../_build/default/lib/cowboy/src/cowboy_bstr.erl  | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 server/_build/default/lib/cowboy/src/cowboy_bstr.erl

(limited to 'server/_build/default/lib/cowboy/src/cowboy_bstr.erl')

diff --git a/server/_build/default/lib/cowboy/src/cowboy_bstr.erl b/server/_build/default/lib/cowboy/src/cowboy_bstr.erl
new file mode 100644
index 0000000..d8041e4
--- /dev/null
+++ b/server/_build/default/lib/cowboy/src/cowboy_bstr.erl
@@ -0,0 +1,123 @@
+%% Copyright (c) 2011-2017, 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.
+
+-module(cowboy_bstr).
+
+%% Binary strings.
+-export([capitalize_token/1]).
+-export([to_lower/1]).
+-export([to_upper/1]).
+
+%% Characters.
+-export([char_to_lower/1]).
+-export([char_to_upper/1]).
+
+%% The first letter and all letters after a dash are capitalized.
+%% This is the form seen for header names in the HTTP/1.1 RFC and
+%% others. Note that using this form isn't required, as header names
+%% are case insensitive, and it is only provided for use with eventual
+%% badly implemented clients.
+-spec capitalize_token(B) -> B when B::binary().
+capitalize_token(B) ->
+	capitalize_token(B, true, <<>>).
+capitalize_token(<<>>, _, Acc) ->
+	Acc;
+capitalize_token(<< $-, Rest/bits >>, _, Acc) ->
+	capitalize_token(Rest, true, << Acc/binary, $- >>);
+capitalize_token(<< C, Rest/bits >>, true, Acc) ->
+	capitalize_token(Rest, false, << Acc/binary, (char_to_upper(C)) >>);
+capitalize_token(<< C, Rest/bits >>, false, Acc) ->
+	capitalize_token(Rest, false, << Acc/binary, (char_to_lower(C)) >>).
+
+-spec to_lower(B) -> B when B::binary().
+to_lower(B) ->
+	<< << (char_to_lower(C)) >> || << C >> <= B >>.
+
+-spec to_upper(B) -> B when B::binary().
+to_upper(B) ->
+	<< << (char_to_upper(C)) >> || << C >> <= B >>.
+
+-spec char_to_lower(char()) -> char().
+char_to_lower($A) -> $a;
+char_to_lower($B) -> $b;
+char_to_lower($C) -> $c;
+char_to_lower($D) -> $d;
+char_to_lower($E) -> $e;
+char_to_lower($F) -> $f;
+char_to_lower($G) -> $g;
+char_to_lower($H) -> $h;
+char_to_lower($I) -> $i;
+char_to_lower($J) -> $j;
+char_to_lower($K) -> $k;
+char_to_lower($L) -> $l;
+char_to_lower($M) -> $m;
+char_to_lower($N) -> $n;
+char_to_lower($O) -> $o;
+char_to_lower($P) -> $p;
+char_to_lower($Q) -> $q;
+char_to_lower($R) -> $r;
+char_to_lower($S) -> $s;
+char_to_lower($T) -> $t;
+char_to_lower($U) -> $u;
+char_to_lower($V) -> $v;
+char_to_lower($W) -> $w;
+char_to_lower($X) -> $x;
+char_to_lower($Y) -> $y;
+char_to_lower($Z) -> $z;
+char_to_lower(Ch) -> Ch.
+
+-spec char_to_upper(char()) -> char().
+char_to_upper($a) -> $A;
+char_to_upper($b) -> $B;
+char_to_upper($c) -> $C;
+char_to_upper($d) -> $D;
+char_to_upper($e) -> $E;
+char_to_upper($f) -> $F;
+char_to_upper($g) -> $G;
+char_to_upper($h) -> $H;
+char_to_upper($i) -> $I;
+char_to_upper($j) -> $J;
+char_to_upper($k) -> $K;
+char_to_upper($l) -> $L;
+char_to_upper($m) -> $M;
+char_to_upper($n) -> $N;
+char_to_upper($o) -> $O;
+char_to_upper($p) -> $P;
+char_to_upper($q) -> $Q;
+char_to_upper($r) -> $R;
+char_to_upper($s) -> $S;
+char_to_upper($t) -> $T;
+char_to_upper($u) -> $U;
+char_to_upper($v) -> $V;
+char_to_upper($w) -> $W;
+char_to_upper($x) -> $X;
+char_to_upper($y) -> $Y;
+char_to_upper($z) -> $Z;
+char_to_upper(Ch) -> Ch.
+
+%% Tests.
+
+-ifdef(TEST).
+capitalize_token_test_() ->
+	Tests = [
+		{<<"heLLo-woRld">>, <<"Hello-World">>},
+		{<<"Sec-Websocket-Version">>, <<"Sec-Websocket-Version">>},
+		{<<"Sec-WebSocket-Version">>, <<"Sec-Websocket-Version">>},
+		{<<"sec-websocket-version">>, <<"Sec-Websocket-Version">>},
+		{<<"SEC-WEBSOCKET-VERSION">>, <<"Sec-Websocket-Version">>},
+		{<<"Sec-WebSocket--Version">>, <<"Sec-Websocket--Version">>},
+		{<<"Sec-WebSocket---Version">>, <<"Sec-Websocket---Version">>}
+	],
+	[{H, fun() -> R = capitalize_token(H) end} || {H, R} <- Tests].
+-endif.
-- 
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