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-rw-r--r--lib/stdlib/src/io_lib_format.erl122
1 files changed, 78 insertions, 44 deletions
diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl
index 49a00a4ec7..56e15a17ec 100644
--- a/lib/stdlib/src/io_lib_format.erl
+++ b/lib/stdlib/src/io_lib_format.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -22,7 +22,7 @@
-export([fwrite/2,fwrite_g/1,indentation/2]).
-%% fwrite(Format, ArgList) -> [Char].
+%% fwrite(Format, ArgList) -> string().
%% Format the arguments in ArgList after string Format. Just generate
%% an error if there is an error in the arguments.
%%
@@ -58,14 +58,22 @@ collect_cseq(Fmt0, Args0) ->
{P,Fmt2,Args2} = precision(Fmt1, Args1),
{Pad,Fmt3,Args3} = pad_char(Fmt2, Args2),
{Encoding,Fmt4,Args4} = encoding(Fmt3, Args3),
- {C,As,Fmt5,Args5} = collect_cc(Fmt4, Args4),
- {{C,As,F,Ad,P,Pad,Encoding},Fmt5,Args5}.
+ {Strings,Fmt5,Args5} = strings(Fmt4, Args4),
+ {C,As,Fmt6,Args6} = collect_cc(Fmt5, Args5),
+ {{C,As,F,Ad,P,Pad,Encoding,Strings},Fmt6,Args6}.
encoding([$t|Fmt],Args) ->
+ true = hd(Fmt) =/= $l,
{unicode,Fmt,Args};
encoding(Fmt,Args) ->
{latin1,Fmt,Args}.
+strings([$l|Fmt],Args) ->
+ true = hd(Fmt) =/= $t,
+ {false,Fmt,Args};
+strings(Fmt,Args) ->
+ {true,Fmt,Args}.
+
field_width([$-|Fmt0], Args0) ->
{F,Fmt,Args} = field_value(Fmt0, Args0),
field_width(-F, Fmt, Args);
@@ -128,18 +136,18 @@ collect_cc([$i|Fmt], [A|Args]) -> {$i,[A],Fmt,Args}.
pcount(Cs) -> pcount(Cs, 0).
-pcount([{$p,_As,_F,_Ad,_P,_Pad,_Enc}|Cs], Acc) -> pcount(Cs, Acc+1);
-pcount([{$P,_As,_F,_Ad,_P,_Pad,_Enc}|Cs], Acc) -> pcount(Cs, Acc+1);
+pcount([{$p,_As,_F,_Ad,_P,_Pad,_Enc,_Str}|Cs], Acc) -> pcount(Cs, Acc+1);
+pcount([{$P,_As,_F,_Ad,_P,_Pad,_Enc,_Str}|Cs], Acc) -> pcount(Cs, Acc+1);
pcount([_|Cs], Acc) -> pcount(Cs, Acc);
pcount([], Acc) -> Acc.
-%% build([Control], Pc, Indentation) -> [Char].
+%% build([Control], Pc, Indentation) -> string().
%% Interpret the control structures. Count the number of print
%% remaining and only calculate indentation when necessary. Must also
%% be smart when calculating indentation for characters in format.
-build([{C,As,F,Ad,P,Pad,Enc}|Cs], Pc0, I) ->
- S = control(C, As, F, Ad, P, Pad, Enc, I),
+build([{C,As,F,Ad,P,Pad,Enc,Str}|Cs], Pc0, I) ->
+ S = control(C, As, F, Ad, P, Pad, Enc, Str, I),
Pc1 = decr_pc(C, Pc0),
if
Pc1 > 0 -> [S|build(Cs, Pc1, indentation(S, I))];
@@ -154,7 +162,7 @@ decr_pc($p, Pc) -> Pc - 1;
decr_pc($P, Pc) -> Pc - 1;
decr_pc(_, Pc) -> Pc.
-%% indentation([Char], Indentation) -> Indentation.
+%% indentation(String, Indentation) -> Indentation.
%% Calculate the indentation of the end of a string given its start
%% indentation. We assume tabs at 8 cols.
@@ -167,64 +175,63 @@ indentation([C|Cs], I) ->
indentation([], I) -> I.
%% control(FormatChar, [Argument], FieldWidth, Adjust, Precision, PadChar,
-%% Indentation) ->
-%% [Char]
+%% Encoding, Indentation) -> String
%% This is the main dispatch function for the various formatting commands.
%% Field widths and precisions have already been calculated.
-control($w, [A], F, Adj, P, Pad, _Enc,_I) ->
+control($w, [A], F, Adj, P, Pad, _Enc, _Str, _I) ->
term(io_lib:write(A, -1), F, Adj, P, Pad);
-control($p, [A], F, Adj, P, Pad, _Enc, I) ->
- print(A, -1, F, Adj, P, Pad, I);
-control($W, [A,Depth], F, Adj, P, Pad, _Enc, _I) when is_integer(Depth) ->
+control($p, [A], F, Adj, P, Pad, Enc, Str, I) ->
+ print(A, -1, F, Adj, P, Pad, Enc, Str, I);
+control($W, [A,Depth], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(Depth) ->
term(io_lib:write(A, Depth), F, Adj, P, Pad);
-control($P, [A,Depth], F, Adj, P, Pad, _Enc, I) when is_integer(Depth) ->
- print(A, Depth, F, Adj, P, Pad, I);
-control($s, [A], F, Adj, P, Pad, _Enc, _I) when is_atom(A) ->
+control($P, [A,Depth], F, Adj, P, Pad, Enc, Str, I) when is_integer(Depth) ->
+ print(A, Depth, F, Adj, P, Pad, Enc, Str, I);
+control($s, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_atom(A) ->
string(atom_to_list(A), F, Adj, P, Pad);
-control($s, [L0], F, Adj, P, Pad, latin1, _I) ->
+control($s, [L0], F, Adj, P, Pad, latin1, _Str, _I) ->
L = iolist_to_chars(L0),
string(L, F, Adj, P, Pad);
-control($s, [L0], F, Adj, P, Pad, unicode, _I) ->
- L = unicode:characters_to_list(L0),
+control($s, [L0], F, Adj, P, Pad, unicode, _Str, _I) ->
+ L = cdata_to_chars(L0),
uniconv(string(L, F, Adj, P, Pad));
-control($e, [A], F, Adj, P, Pad, _Enc, _I) when is_float(A) ->
+control($e, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_float(A) ->
fwrite_e(A, F, Adj, P, Pad);
-control($f, [A], F, Adj, P, Pad, _Enc, _I) when is_float(A) ->
+control($f, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_float(A) ->
fwrite_f(A, F, Adj, P, Pad);
-control($g, [A], F, Adj, P, Pad, _Enc, _I) when is_float(A) ->
+control($g, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_float(A) ->
fwrite_g(A, F, Adj, P, Pad);
-control($b, [A], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($b, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
unprefixed_integer(A, F, Adj, base(P), Pad, true);
-control($B, [A], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($B, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
unprefixed_integer(A, F, Adj, base(P), Pad, false);
-control($x, [A,Prefix], F, Adj, P, Pad, _Enc, _I) when is_integer(A),
+control($x, [A,Prefix], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A),
is_atom(Prefix) ->
prefixed_integer(A, F, Adj, base(P), Pad, atom_to_list(Prefix), true);
-control($x, [A,Prefix], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($x, [A,Prefix], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
true = io_lib:deep_char_list(Prefix), %Check if Prefix a character list
prefixed_integer(A, F, Adj, base(P), Pad, Prefix, true);
-control($X, [A,Prefix], F, Adj, P, Pad, _Enc, _I) when is_integer(A),
+control($X, [A,Prefix], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A),
is_atom(Prefix) ->
prefixed_integer(A, F, Adj, base(P), Pad, atom_to_list(Prefix), false);
-control($X, [A,Prefix], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($X, [A,Prefix], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
true = io_lib:deep_char_list(Prefix), %Check if Prefix a character list
prefixed_integer(A, F, Adj, base(P), Pad, Prefix, false);
-control($+, [A], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($+, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
Base = base(P),
Prefix = [integer_to_list(Base), $#],
prefixed_integer(A, F, Adj, Base, Pad, Prefix, true);
-control($#, [A], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($#, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
Base = base(P),
Prefix = [integer_to_list(Base), $#],
prefixed_integer(A, F, Adj, Base, Pad, Prefix, false);
-control($c, [A], F, Adj, P, Pad, unicode, _I) when is_integer(A) ->
+control($c, [A], F, Adj, P, Pad, unicode, _Str, _I) when is_integer(A) ->
char(A, F, Adj, P, Pad);
-control($c, [A], F, Adj, P, Pad, _Enc, _I) when is_integer(A) ->
+control($c, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(A) ->
char(A band 255, F, Adj, P, Pad);
-control($~, [], F, Adj, P, Pad, _Enc, _I) -> char($~, F, Adj, P, Pad);
-control($n, [], F, Adj, P, Pad, _Enc, _I) -> newline(F, Adj, P, Pad);
-control($i, [_A], _F, _Adj, _P, _Pad, _Enc, _I) -> [].
+control($~, [], F, Adj, P, Pad, _Enc, _Str, _I) -> char($~, F, Adj, P, Pad);
+control($n, [], F, Adj, P, Pad, _Enc, _Str, _I) -> newline(F, Adj, P, Pad);
+control($i, [_A], _F, _Adj, _P, _Pad, _Enc, _Str, _I) -> [].
-ifdef(UNICODE_AS_BINARIES).
uniconv(C) ->
@@ -256,13 +263,21 @@ term(T, F, Adj, P0, Pad) ->
adjust(T, chars(Pad, F-L), Adj)
end.
-%% print(Term, Depth, Field, Adjust, Precision, PadChar, Indentation)
+%% print(Term, Depth, Field, Adjust, Precision, PadChar, Encoding,
+%% Indentation)
%% Print a term.
-print(T, D, none, Adj, P, Pad, I) -> print(T, D, 80, Adj, P, Pad, I);
-print(T, D, F, Adj, none, Pad, I) -> print(T, D, F, Adj, I+1, Pad, I);
-print(T, D, F, right, P, _Pad, _I) ->
- io_lib_pretty:print(T, P, F, D).
+print(T, D, none, Adj, P, Pad, E, Str, I) ->
+ print(T, D, 80, Adj, P, Pad, E, Str, I);
+print(T, D, F, Adj, none, Pad, E, Str, I) ->
+ print(T, D, F, Adj, I+1, Pad, E, Str, I);
+print(T, D, F, right, P, _Pad, Enc, Str, _I) ->
+ Options = [{column, P},
+ {line_length, F},
+ {depth, D},
+ {encoding, Enc},
+ {strings, Str}],
+ io_lib_pretty:print(T, Options).
%% fwrite_e(Float, Field, Adjust, Precision, PadChar)
@@ -554,6 +569,25 @@ iolist_to_chars([]) ->
iolist_to_chars(B) when is_binary(B) ->
binary_to_list(B).
+%% cdata() :: clist() | cbinary()
+%% clist() :: maybe_improper_list(char() | cbinary() | clist(),
+%% cbinary() | nil())
+%% cbinary() :: unicode:unicode_binary() | unicode:latin1_binary()
+
+%% cdata_to_chars(cdata()) -> io_lib:deep_char_list()
+
+cdata_to_chars([C|Cs]) when is_integer(C), C >= $\000 ->
+ [C | cdata_to_chars(Cs)];
+cdata_to_chars([I|Cs]) ->
+ [cdata_to_chars(I) | cdata_to_chars(Cs)];
+cdata_to_chars([]) ->
+ [];
+cdata_to_chars(B) when is_binary(B) ->
+ case catch unicode:characters_to_list(B) of
+ L when is_list(L) -> L;
+ _ -> binary_to_list(B)
+ end.
+
%% string(String, Field, Adjust, Precision, PadChar)
string(S, none, _Adj, none, _Pad) -> S;
@@ -608,7 +642,7 @@ prefixed_integer(Int, F, Adj, Base, Pad, Prefix, Lowercase)
term([Prefix|S], F, Adj, none, Pad)
end.
-%% char(Char, Field, Adjust, Precision, PadChar) -> [Char].
+%% char(Char, Field, Adjust, Precision, PadChar) -> string().
char(C, none, _Adj, none, _Pad) -> [C];
char(C, F, _Adj, none, _Pad) -> chars(C, F);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 07:01:17 +0000