From 00a7d8d6e6125c171c46190bdb40ecaa08347cca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 31 Oct 2016 19:30:26 +0200
Subject: Add a check for mandatory name section for man pages

---
 src/asciideck_to_manpage.erl |  9 +++++++++
 test/man_SUITE.erl           | 29 +++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 test/man_SUITE.erl

diff --git a/src/asciideck_to_manpage.erl b/src/asciideck_to_manpage.erl
index 47eb932..fffd250 100644
--- a/src/asciideck_to_manpage.erl
+++ b/src/asciideck_to_manpage.erl
@@ -33,6 +33,7 @@ translate(AST, Opts) ->
 	end.
 
 translate_man([{title, #{level := 0}, Title0, _Ann}|AST], Opts) ->
+	ensure_name_section(AST),
 	[Title, << Section:1/binary, _/bits >>] = binary:split(Title0, <<"(">>),
 	Extra1 = maps:get(extra1, Opts, today()),
 	Extra2 = maps:get(extra2, Opts, ""),
@@ -44,6 +45,14 @@ translate_man([{title, #{level := 0}, Title0, _Ann}|AST], Opts) ->
 		man(AST, [])
 	]}.
 
+ensure_name_section([{title, #{level := 1}, Title, _}|_]) ->
+	case string:to_lower(string:strip(binary_to_list(Title))) of
+		"name" -> ok;
+		_ -> error(badarg)
+	end;
+ensure_name_section(_) ->
+	error(badarg).
+
 today() ->
 	{{Y, M, D}, _} = calendar:universal_time(),
 	io_lib:format("~b-~2.10.0b-~2.10.0b", [Y, M, D]).
diff --git a/test/man_SUITE.erl b/test/man_SUITE.erl
new file mode 100644
index 0000000..30eec4f
--- /dev/null
+++ b/test/man_SUITE.erl
@@ -0,0 +1,29 @@
+%% Copyright (c) 2016, 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(man_SUITE).
+-compile(export_all).
+
+-import(ct_helper, [doc/1]).
+
+all() ->
+	ct_helper:all(?MODULE).
+
+%% @todo We should try to see if it accepts all valid AST.
+%% @todo Test all options.
+
+missing_name_section(_) ->
+	AST = asciideck:parse("= missing_name(3)\n\n== Not name\n\nFail!"),
+	{'EXIT', _} = (catch asciideck:to_manpage(AST)),
+	ok.
-- 
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