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-rw-r--r--lib/syntax_tools/src/epp_dodger.erl28
-rw-r--r--lib/syntax_tools/src/erl_comment_scan.erl13
-rw-r--r--lib/syntax_tools/src/erl_syntax.erl35
3 files changed, 74 insertions, 2 deletions
diff --git a/lib/syntax_tools/src/epp_dodger.erl b/lib/syntax_tools/src/epp_dodger.erl
index 131be4e8e4..7e12eab1b5 100644
--- a/lib/syntax_tools/src/epp_dodger.erl
+++ b/lib/syntax_tools/src/epp_dodger.erl
@@ -184,9 +184,27 @@ quick_parse_file(File, Options) ->
parse_file(File, fun quick_parse/3, Options ++ [no_fail]).
parse_file(File, Parser, Options) ->
+ case do_parse_file(utf8, File, Parser, Options) of
+ {ok, Forms}=Ret ->
+ case find_invalid_unicode(Forms) of
+ none ->
+ Ret;
+ invalid_unicode ->
+ case epp:read_encoding(File) of
+ utf8 ->
+ Ret;
+ _ ->
+ do_parse_file(latin1, File, Parser, Options)
+ end
+ end;
+ Else ->
+ Else
+ end.
+
+do_parse_file(DefEncoding, File, Parser, Options) ->
case file:open(File, [read]) of
{ok, Dev} ->
- _ = epp:set_encoding(Dev),
+ _ = epp:set_encoding(Dev, DefEncoding),
try Parser(Dev, 1, Options)
after ok = file:close(Dev)
end;
@@ -194,6 +212,14 @@ parse_file(File, Parser, Options) ->
Error
end.
+find_invalid_unicode([H|T]) ->
+ case H of
+ {error, {_Line, file_io_server, invalid_unicode}} ->
+ invalid_unicode;
+ _Other ->
+ find_invalid_unicode(T)
+ end;
+find_invalid_unicode([]) -> none.
%% =====================================================================
%% @spec parse(IODevice) -> {ok, Forms} | {error, errorinfo()}
diff --git a/lib/syntax_tools/src/erl_comment_scan.erl b/lib/syntax_tools/src/erl_comment_scan.erl
index dae7530ce7..03429d4d42 100644
--- a/lib/syntax_tools/src/erl_comment_scan.erl
+++ b/lib/syntax_tools/src/erl_comment_scan.erl
@@ -72,13 +72,24 @@ file(Name) ->
{ok, V} ->
case V of
{ok, B} ->
- Enc = case epp:read_encoding(Name) of
+ Encoding = epp:read_encoding_from_binary(B),
+ Enc = case Encoding of
none -> epp:default_encoding();
Enc0 -> Enc0
end,
case catch unicode:characters_to_list(B, Enc) of
String when is_list(String) ->
string(String);
+ R when Encoding =:= none ->
+ case
+ catch unicode:characters_to_list(B, latin1)
+ of
+ String when is_list(String) ->
+ string(String);
+ _ ->
+ error_read_file(Name1),
+ exit(R)
+ end;
R ->
error_read_file(Name1),
exit(R)
diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index 46a5ca48df..40372a2106 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -669,6 +669,9 @@ is_leaf(Node) ->
operator -> true; % nonstandard type
string -> true;
text -> true; % nonstandard type
+ map_expr ->
+ map_expr_fields(Node) =:= [] andalso
+ map_expr_argument(Node) =:= none;
tuple -> tuple_elements(Node) =:= [];
underscore -> true;
variable -> true;
@@ -6093,6 +6096,9 @@ abstract([]) ->
nil();
abstract(T) when is_tuple(T) ->
tuple(abstract_list(tuple_to_list(T)));
+abstract(T) when is_map(T) ->
+ map_expr([map_field_assoc(abstract(Key),abstract(Value))
+ || {Key,Value} <- maps:to_list(T)]);
abstract(T) when is_binary(T) ->
binary([binary_field(integer(B)) || B <- binary_to_list(T)]);
abstract(T) ->
@@ -6154,6 +6160,14 @@ concrete(Node) ->
| concrete(list_tail(Node))];
tuple ->
list_to_tuple(concrete_list(tuple_elements(Node)));
+ map_expr ->
+ As = [tuple([map_field_assoc_name(F),
+ map_field_assoc_value(F)]) || F <- map_expr_fields(Node)],
+ M0 = maps:from_list(concrete_list(As)),
+ case map_expr_argument(Node) of
+ none -> M0;
+ Node0 -> maps:merge(concrete(Node0),M0)
+ end;
binary ->
Fs = [revert_binary_field(
binary_field(binary_field_body(F),
@@ -6209,10 +6223,31 @@ is_literal(T) ->
is_literal(list_head(T)) andalso is_literal(list_tail(T));
tuple ->
lists:all(fun is_literal/1, tuple_elements(T));
+ map_expr ->
+ case map_expr_argument(T) of
+ none -> true;
+ Arg -> is_literal(Arg)
+ end andalso lists:all(fun is_literal_map_field/1, map_expr_fields(T));
+ binary ->
+ lists:all(fun is_literal_binary_field/1, binary_fields(T));
_ ->
false
end.
+is_literal_binary_field(F) ->
+ case binary_field_types(F) of
+ [] -> is_literal(binary_field_body(F));
+ _ -> false
+ end.
+
+is_literal_map_field(F) ->
+ case type(F) of
+ map_field_assoc ->
+ is_literal(map_field_assoc_name(F)) andalso
+ is_literal(map_field_assoc_value(F));
+ map_field_exact ->
+ false
+ end.
%% =====================================================================
%% @doc Returns an `erl_parse'-compatible representation of a