diff options
Diffstat (limited to 'lib/stdlib/src/io_lib_pretty.erl')
| -rw-r--r-- | lib/stdlib/src/io_lib_pretty.erl | 68 |
1 files changed, 37 insertions, 31 deletions
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl index a8f610558a..b05db3d290 100644 --- a/lib/stdlib/src/io_lib_pretty.erl +++ b/lib/stdlib/src/io_lib_pretty.erl @@ -452,18 +452,6 @@ printable_list(L, _D, latin1) -> io_lib:printable_latin1_list(L); printable_list(L, _D, _Uni) -> io_lib:printable_list(L). -%% Truncated lists could break some existing code. -% printable_list(L, D, Enc) when D >= 0 -> -% Len = ?CHARS * (D - 1), -% case printable_list1(L, Len, Enc) of -% all -> -% true; -% N when is_integer(N), Len - N >= D - 1 -> -% {L1, _} = lists:split(Len - N, L), -% {true, L1}; -% N when is_integer(N) -> -% false -% end. printable_bin(Bin, D, Enc) when D >= 0, ?CHARS * D =< byte_size(Bin) -> printable_bin(Bin, erlang:min(?CHARS * D, byte_size(Bin)), D, Enc); @@ -473,7 +461,7 @@ printable_bin(Bin, D, Enc) -> printable_bin(Bin, Len, D, latin1) -> N = erlang:min(20, Len), L = binary_to_list(Bin, 1, N), - case printable_list1(L, N) of + case printable_latin1_list(L, N) of all when N =:= byte_size(Bin) -> {true, L}; all when N =:= Len -> % N < byte_size(Bin) @@ -507,7 +495,7 @@ printable_bin1(_Bin, _Start, 0) -> printable_bin1(Bin, Start, Len) -> N = erlang:min(10000, Len), L = binary_to_list(Bin, Start, Start + N - 1), - case printable_list1(L, N) of + case printable_latin1_list(L, N) of all -> printable_bin1(Bin, Start + N, Len - N); NC when is_integer(NC) -> @@ -515,26 +503,44 @@ printable_bin1(Bin, Start, Len) -> end. %% -> all | integer() >=0. Adopted from io_lib.erl. -% printable_list1([_ | _], 0) -> 0; -printable_list1([C | Cs], N) when is_integer(C), C >= $\s, C =< $~ -> - printable_list1(Cs, N - 1); -printable_list1([C | Cs], N) when is_integer(C), C >= $\240, C =< $\377 -> - printable_list1(Cs, N - 1); -printable_list1([$\n | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\r | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\t | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\v | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\b | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\f | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([$\e | Cs], N) -> printable_list1(Cs, N - 1); -printable_list1([], _) -> all; -printable_list1(_, N) -> N. - -printable_unicode(<<C/utf8, R/binary>>, I, L) when I > 0 -> - printable_unicode(R, I - 1, [C | L]); +% printable_latin1_list([_ | _], 0) -> 0; +printable_latin1_list([C | Cs], N) when C >= $\s, C =< $~ -> + printable_latin1_list(Cs, N - 1); +printable_latin1_list([C | Cs], N) when C >= $\240, C =< $\377 -> + printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\n | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\r | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\t | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\v | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\b | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\f | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([$\e | Cs], N) -> printable_latin1_list(Cs, N - 1); +printable_latin1_list([], _) -> all; +printable_latin1_list(_, N) -> N. + +printable_unicode(<<C/utf8, R/binary>>=Bin, I, L) when I > 0 -> + case printable_char(C) of + true -> + printable_unicode(R, I - 1, [C | L]); + false -> + {I, Bin, lists:reverse(L)} + end; printable_unicode(Bin, I, L) -> {I, Bin, lists:reverse(L)}. +printable_char($\n) -> true; +printable_char($\r) -> true; +printable_char($\t) -> true; +printable_char($\v) -> true; +printable_char($\b) -> true; +printable_char($\f) -> true; +printable_char($\e) -> true; +printable_char(C) -> + C >= $\s andalso C =< $~ orelse + C >= 16#A0 andalso C < 16#D800 orelse + C > 16#DFFF andalso C < 16#FFFE orelse + C > 16#FFFF andalso C =< 16#10FFFF. + write_string(S, latin1) -> io_lib:write_latin1_string(S, $"); %" write_string(S, _Uni) -> |