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-rw-r--r--lib/stdlib/src/io_lib_format.erl27
1 files changed, 16 insertions, 11 deletions
diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl
index ab9031573b..d1aa4cd157 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 1996-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -248,7 +248,7 @@ count_small([#{control_char := $s}|Cs], #{w := W} = Cnts) ->
count_small(Cs, Cnts#{w := W + 1});
count_small([S|Cs], #{other := Other} = Cnts) when is_list(S);
is_binary(S) ->
- count_small(Cs, Cnts#{other := Other + string:length(S)});
+ count_small(Cs, Cnts#{other := Other + io_lib:chars_length(S)});
count_small([C|Cs], #{other := Other} = Cnts) when is_integer(C) ->
count_small(Cs, Cnts#{other := Other + 1});
count_small([], #{p := P, s := S, w := W, other := Other}) ->
@@ -280,10 +280,15 @@ build_limited([#{control_char := C, args := As, width := F, adjust := Ad,
true -> MaxLen0 div Count0
end,
S = control_limited(C, As, F, Ad, P, Pad, Enc, Str, MaxChars, I),
- Len = string:length(S),
NumOfPs = decr_pc(C, NumOfPs0),
Count = Count0 - 1,
- MaxLen = sub(MaxLen0, Len),
+ MaxLen = if
+ MaxLen0 < 0 -> % optimization
+ MaxLen0;
+ true ->
+ Len = io_lib:chars_length(S),
+ sub(MaxLen0, Len)
+ end,
if
NumOfPs > 0 -> [S|build_limited(Cs, NumOfPs, Count,
MaxLen, indentation(S, I))];
@@ -406,7 +411,7 @@ base(B) when is_integer(B) ->
term(T, none, _Adj, none, _Pad) -> T;
term(T, none, Adj, P, Pad) -> term(T, P, Adj, P, Pad);
term(T, F, Adj, P0, Pad) ->
- L = string:length(T),
+ L = io_lib:chars_length(T),
P = erlang:min(L, case P0 of none -> F; _ -> min(P0, F) end),
if
L > P ->
@@ -713,7 +718,7 @@ fwrite_g(Fl, F, Adj, P, Pad) when P >= 1 ->
end.
-%% iolist_to_chars(iolist()) -> deep_char_list()
+%% iolist_to_chars(iolist()) -> io_lib:chars()
iolist_to_chars([C|Cs]) when is_integer(C), C >= $\000, C =< $\377 ->
[C | iolist_to_chars(Cs)];
@@ -729,7 +734,7 @@ iolist_to_chars(B) when is_binary(B) ->
%% cbinary() | nil())
%% cbinary() :: unicode:unicode_binary() | unicode:latin1_binary()
-%% cdata_to_chars(cdata()) -> io_lib:deep_char_list()
+%% cdata_to_chars(cdata()) -> io_lib:chars()
cdata_to_chars([C|Cs]) when is_integer(C), C >= $\000 ->
[C | cdata_to_chars(Cs)];
@@ -745,7 +750,7 @@ cdata_to_chars(B) when is_binary(B) ->
limit_string(S, F, CharsLimit) when CharsLimit < 0; CharsLimit >= F -> S;
limit_string(S, _F, CharsLimit) ->
- case string:length(S) =< CharsLimit of
+ case io_lib:chars_length(S) =< CharsLimit of
true -> S;
false -> [string:slice(S, 0, sub(CharsLimit, 3)), "..."]
end.
@@ -759,11 +764,11 @@ limit_field(F, CharsLimit) ->
string(S, none, _Adj, none, _Pad) -> S;
string(S, F, Adj, none, Pad) ->
- string_field(S, F, Adj, string:length(S), Pad);
+ string_field(S, F, Adj, io_lib:chars_length(S), Pad);
string(S, none, _Adj, P, Pad) ->
- string_field(S, P, left, string:length(S), Pad);
+ string_field(S, P, left, io_lib:chars_length(S), Pad);
string(S, F, Adj, P, Pad) when F >= P ->
- N = string:length(S),
+ N = io_lib:chars_length(S),
if F > P ->
if N > P ->
adjust(flat_trunc(S, P), chars(Pad, F-P), Adj);