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authorHans Bolinder <[email protected]>2017-02-02 10:16:07 +0100
committerHans Bolinder <[email protected]>2017-04-07 08:57:26 +0200
commit25271fa55aacf0b367ad74532c952352344ed97d (patch)
tree434285a14cc79b0801f064e7d150f3bb57d239f7 /lib/parsetools/src/leex.erl
parent46e08e6ac477d1acccb360ad5d616c96dcdfe850 (diff)
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parsetools: Fix Leex regarding Unicode atoms
Notice that macro names are unquoted atoms.
Diffstat (limited to 'lib/parsetools/src/leex.erl')
-rw-r--r--lib/parsetools/src/leex.erl92
1 files changed, 55 insertions, 37 deletions
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index e0f37ae9df..e2e7d7359f 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -1548,22 +1548,23 @@ out_action_code(File, XrlFile, {_A,Code,_Vars,Name,Args,ArgsChars}) ->
L = erl_scan:line(hd(Code)),
output_file_directive(File, XrlFile, L-2),
io:fwrite(File, "~s(~s) ->~n", [Name, ArgsChars]),
- io:fwrite(File, " ~s\n", [pp_tokens(Code, L)]).
+ io:fwrite(File, " ~ts\n", [pp_tokens(Code, L, File)]).
-%% pp_tokens(Tokens, Line) -> [char()].
+%% pp_tokens(Tokens, Line, File) -> [char()].
%% Prints the tokens keeping the line breaks of the original code.
-pp_tokens(Tokens, Line0) -> pp_tokens(Tokens, Line0, none).
+pp_tokens(Tokens, Line0, File) -> pp_tokens(Tokens, Line0, File, none).
-pp_tokens([], _Line0, _) -> [];
-pp_tokens([T | Ts], Line0, Prev) ->
+pp_tokens([], _Line0, _, _) -> [];
+pp_tokens([T | Ts], Line0, File, Prev) ->
Line = erl_scan:line(T),
- [pp_sep(Line, Line0, Prev, T), pp_symbol(T) | pp_tokens(Ts, Line, T)].
+ [pp_sep(Line, Line0, Prev, T),
+ pp_symbol(T, File) | pp_tokens(Ts, Line, File, T)].
-pp_symbol({var,_,Var}) -> atom_to_list(Var);
-pp_symbol({_,_,Symbol}) -> io_lib:fwrite("~p", [Symbol]);
-pp_symbol({dot, _}) -> ".";
-pp_symbol({Symbol, _}) -> atom_to_list(Symbol).
+pp_symbol({var,_,Var}, _) -> atom_to_list(Var);
+pp_symbol({_,_,Symbol}, File) -> format_symbol(Symbol, File);
+pp_symbol({dot, _}, _) -> ".";
+pp_symbol({Symbol, _}, _) -> atom_to_list(Symbol).
pp_sep(Line, Line0, Prev, T) when Line > Line0 ->
["\n " | pp_sep(Line - 1, Line0, Prev, T)];
@@ -1622,17 +1623,17 @@ out_dfa_edges(File, DFA) ->
end, orddict:new(), Pt),
foreach(fun (T) ->
Crs = orddict:fetch(T, Tdict),
- Edgelab = dfa_edgelabel(Crs),
+ Edgelab = dfa_edgelabel(Crs, File),
io:fwrite(File, " ~b -> ~b [label=\"~ts\"];~n",
[S,T,Edgelab])
end, sort(orddict:fetch_keys(Tdict)))
end, DFA).
-dfa_edgelabel([C]) when is_integer(C) -> quote(C);
-dfa_edgelabel(Cranges) ->
+dfa_edgelabel([C], File) when is_integer(C) -> quote(C, File);
+dfa_edgelabel(Cranges, File) ->
%% io:fwrite("el: ~p\n", [Cranges]),
- "[" ++ map(fun ({A,B}) -> [quote(A), "-", quote(B)];
- (C) -> [quote(C)]
+ "[" ++ map(fun ({A,B}) -> [quote(A, File), "-", quote(B, File)];
+ (C) -> [quote(C, File)]
end, Cranges) ++ "]".
set_encoding(#leex{encoding = none}, File) ->
@@ -1651,33 +1652,50 @@ output_file_directive(File, Filename, Line) ->
format_filename(Filename0, File) ->
Filename = filename:flatten(Filename0),
+ case enc(File) of
+ unicode -> io_lib:write_string(Filename);
+ latin1 -> io_lib:write_string_as_latin1(Filename)
+ end.
+
+format_symbol(Symbol, File) ->
+ Format = case enc(File) of
+ latin1 -> "~p";
+ unicode -> "~tp"
+ end,
+ io_lib:fwrite(Format, [Symbol]).
+
+enc(File) ->
case lists:keyfind(encoding, 1, io:getopts(File)) of
- {encoding, unicode} -> io_lib:write_string(Filename);
- _ -> io_lib:write_string_as_latin1(Filename)
+ false -> latin1; % should never happen
+ {encoding, Enc} -> Enc
end.
-quote($^) -> "\\^";
-quote($.) -> "\\.";
-quote($$) -> "\\$";
-quote($-) -> "\\-";
-quote($[) -> "\\[";
-quote($]) -> "\\]";
-quote($\s) -> "\\\\s";
-quote($\") -> "\\\"";
-quote($\b) -> "\\\\b";
-quote($\f) -> "\\\\f";
-quote($\n) -> "\\\\n";
-quote($\r) -> "\\\\r";
-quote($\t) -> "\\\\t";
-quote($\e) -> "\\\\e";
-quote($\v) -> "\\\\v";
-quote($\d) -> "\\\\d";
-quote($\\) -> "\\\\";
-quote(C) when is_integer(C) ->
+quote($^, _File) -> "\\^";
+quote($., _File) -> "\\.";
+quote($$, _File) -> "\\$";
+quote($-, _File) -> "\\-";
+quote($[, _File) -> "\\[";
+quote($], _File) -> "\\]";
+quote($\s, _File) -> "\\\\s";
+quote($\", _File) -> "\\\"";
+quote($\b, _File) -> "\\\\b";
+quote($\f, _File) -> "\\\\f";
+quote($\n, _File) -> "\\\\n";
+quote($\r, _File) -> "\\\\r";
+quote($\t, _File) -> "\\\\t";
+quote($\e, _File) -> "\\\\e";
+quote($\v, _File) -> "\\\\v";
+quote($\d, _File) -> "\\\\d";
+quote($\\, _File) -> "\\\\";
+quote(C, File) when is_integer(C) ->
%% Must remove the $ and get the \'s right.
- case io_lib:write_char(C) of
+ S = case enc(File) of
+ unicode -> io_lib:write_char(C);
+ latin1 -> io_lib:write_char_as_latin1(C)
+ end,
+ case S of
[$$,$\\|Cs] -> "\\\\" ++ Cs;
[$$|Cs] -> Cs
end;
-quote(maxchar) ->
+quote(maxchar, _File) ->
"MAXCHAR".