From 0969ecad9e2978bacb7b27f663cd16aa5ea6c460 Mon Sep 17 00:00:00 2001
From: Mark Bucciarelli <mkbucc@gmail.com>
Date: Thu, 26 May 2016 21:58:18 -0400
Subject: syntax_tools: Make erl_tidy work on input file with tilde

See also http://bugs.erlang.org/browse/ERL-151.
---
 lib/syntax_tools/src/erl_tidy.erl                           |  2 +-
 lib/syntax_tools/test/syntax_tools_SUITE.erl                | 10 ++++++++--
 .../test/syntax_tools_SUITE_data/erl_tidy_tilde.erl         | 13 +++++++++++++
 3 files changed, 22 insertions(+), 3 deletions(-)
 create mode 100644 lib/syntax_tools/test/syntax_tools_SUITE_data/erl_tidy_tilde.erl

diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl
index f2de12b410..3a37ca43bd 100644
--- a/lib/syntax_tools/src/erl_tidy.erl
+++ b/lib/syntax_tools/src/erl_tidy.erl
@@ -414,7 +414,7 @@ write_module(Tree, Name, Opts) ->
 
 print_module(Tree, Opts) ->
 	Printer = proplists:get_value(printer, Opts),
-	io:format(Printer(Tree, Opts)).
+	io:put_chars(Printer(Tree, Opts)).
 
 output(FD, Printer, Tree, Opts) ->
     io:put_chars(FD, Printer(Tree, Opts)),
diff --git a/lib/syntax_tools/test/syntax_tools_SUITE.erl b/lib/syntax_tools/test/syntax_tools_SUITE.erl
index b935d42bb7..43c17e9f1f 100644
--- a/lib/syntax_tools/test/syntax_tools_SUITE.erl
+++ b/lib/syntax_tools/test/syntax_tools_SUITE.erl
@@ -27,14 +27,14 @@
 %% Test cases
 -export([app_test/1,appup_test/1,smoke_test/1,revert/1,revert_map/1,
 	t_abstract_type/1,t_erl_parse_type/1,t_epp_dodger/1,
-	t_comment_scan/1,t_igor/1]).
+	t_comment_scan/1,t_igor/1,t_erl_tidy/1]).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     [app_test,appup_test,smoke_test,revert,revert_map,
     t_abstract_type,t_erl_parse_type,t_epp_dodger,
-    t_comment_scan,t_igor].
+    t_comment_scan,t_igor,t_erl_tidy].
 
 groups() -> 
     [].
@@ -237,6 +237,12 @@ t_igor(Config) when is_list(Config) ->
 
     ok.
 
+t_erl_tidy(Config) when is_list(Config) ->
+    DataDir   = ?config(data_dir, Config),
+    File  = filename:join(DataDir,"erl_tidy_tilde.erl"),
+    ok = erl_tidy:file(File, [{stdout, true}]),
+    ok.
+
 test_comment_scan([],_) -> ok;
 test_comment_scan([File|Files],DataDir) ->
     Filename  = filename:join(DataDir,File),
diff --git a/lib/syntax_tools/test/syntax_tools_SUITE_data/erl_tidy_tilde.erl b/lib/syntax_tools/test/syntax_tools_SUITE_data/erl_tidy_tilde.erl
new file mode 100644
index 0000000000..888264bad6
--- /dev/null
+++ b/lib/syntax_tools/test/syntax_tools_SUITE_data/erl_tidy_tilde.erl
@@ -0,0 +1,13 @@
+%%
+%% File:    erl_tidy_tilde.erl
+%% Author:  Mark Bucciarelli
+%% Created: 2016-06-05
+%%
+
+-module(erl_tidy_tilde).
+
+-export([start/0]).
+
+start() ->
+    io:put_chars("tilde characters ('~')in source were "
+                 "breaking erl_tidy\n").
-- 
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