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%% Copyright (c) 2018, Loïc Hoguin <[email protected]>
%%
%% 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.
%% https://www.gnu.org/software/src-highlite/source-highlight.html
-module(asciideck_source_highlight).
-export([filter/2]).
filter(Input, #{2 := Lang}) ->
TmpFile = "/tmp/asciideck-" ++ integer_to_list(erlang:phash2(make_ref())),
ok = file:write_file(TmpFile, Input),
Output = os:cmd(io_lib:format(
"source-highlight -i ~s -s ~s",
[TmpFile, Lang])),
file:delete(TmpFile),
unicode:characters_to_binary(Output).
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