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explain some magic number nonsense

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alisdair sullivan 2013-02-25 21:45:13 -08:00
parent 9627ceefab
commit 1c030b6eeb
1 changed files with 3 additions and 0 deletions
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src/jsx_decoder.erl
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@ -562,6 +562,9 @@ partial_utf(_) -> false.
%% strips continuation bytes after bad utf bytes, guards against both too short
%% and overlong sequences. N is the maximum number of bytes to strip
%% if end of input is reached before stripping the max number of continuations
%% possible magic numbers are reinserted into the stream that get us back to
%% the same state without complicated machinery
strip_continuations(Rest, Handler, Acc, Stack, Config, 0) ->
string(Rest, Handler, ?acc_seq(Acc, 16#fffd), Stack, Config);
strip_continuations(<<X, Rest/binary>>, Handler, Acc, Stack, Config, N) when X >= 128, X =< 191 ->