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-rw-r--r--lib/syntax_tools/src/erl_tidy.erl23
1 files changed, 20 insertions, 3 deletions
diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl
index 0c149634f6..7444d8dc67 100644
--- a/lib/syntax_tools/src/erl_tidy.erl
+++ b/lib/syntax_tools/src/erl_tidy.erl
@@ -269,6 +269,13 @@ file(Name) ->
%% is typically most useful if the `verbose' flag is enabled, to
%% generate reports about the program files without affecting
%% them. The default value is `false'.</dd>
+%%
+%% <dt>{stdout, boolean()}</dt>
+%%
+%% <dd>If the value is `true', instead of the file being written
+%% to disk it will be printed to stdout. The default value is
+%% `false'.</dd>
+%%
%% </dl>
%%
%% See the function `module/2' for further options.
@@ -309,9 +316,15 @@ file_2(Name, Opts) ->
true ->
ok;
false ->
- write_module(Tree, Name, Opts1),
- ok
- end.
+ case proplists:get_bool(stdout, Opts1) of
+ true ->
+ print_module(Tree, Opts1),
+ ok;
+ false ->
+ write_module(Tree, Name, Opts1),
+ ok
+ end
+ end.
read_module(Name, Opts) ->
verbose("reading module `~ts'.", [filename(Name)], Opts),
@@ -399,6 +412,10 @@ write_module(Tree, Name, Opts) ->
throw(R)
end.
+print_module(Tree, Opts) ->
+ Printer = proplists:get_value(printer, Opts),
+ io:format(Printer(Tree, Opts)).
+
output(FD, Printer, Tree, Opts) ->
io:put_chars(FD, Printer(Tree, Opts)),
io:nl(FD).