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-rw-r--r--lib/stdlib/doc/src/binary.xml4
-rw-r--r--lib/stdlib/src/binary.erl39
-rw-r--r--lib/stdlib/test/binary_module_SUITE.erl28
-rw-r--r--lib/stdlib/test/binref.erl37
4 files changed, 77 insertions, 31 deletions
diff --git a/lib/stdlib/doc/src/binary.xml b/lib/stdlib/doc/src/binary.xml
index 2410f1f9b8..cda4b974b2 100644
--- a/lib/stdlib/doc/src/binary.xml
+++ b/lib/stdlib/doc/src/binary.xml
@@ -578,6 +578,10 @@ store(Binary, GBSet) ->
<item><p>Removes trailing empty parts of the result (as does trim in <c>re:split/3</c>)</p></item>
+ <tag>trim_all</tag>
+
+ <item><p>Removes all empty parts of the result.</p></item>
+
<tag>global</tag>
<item><p>Repeats the split until the <c><anno>Subject</anno></c> is
diff --git a/lib/stdlib/src/binary.erl b/lib/stdlib/src/binary.erl
index 4850a59eb6..b94829892d 100644
--- a/lib/stdlib/src/binary.erl
+++ b/lib/stdlib/src/binary.erl
@@ -215,12 +215,13 @@ split(H,N) ->
Subject :: binary(),
Pattern :: binary() | [binary()] | cp(),
Options :: [Option],
- Option :: {scope, part()} | trim | global,
+ Option :: {scope, part()} | trim | global | trim_all,
Parts :: [binary()].
split(Haystack,Needles,Options) ->
try
- {Part,Global,Trim} = get_opts_split(Options,{no,false,false}),
+ {Part,Global,Trim,TrimAll} =
+ get_opts_split(Options,{no,false,false,false}),
Moptlist = case Part of
no ->
[];
@@ -236,20 +237,24 @@ split(Haystack,Needles,Options) ->
Match -> [Match]
end
end,
- do_split(Haystack,MList,0,Trim)
+ do_split(Haystack,MList,0,Trim,TrimAll)
catch
_:_ ->
erlang:error(badarg)
end.
-do_split(H,[],N,true) when N >= byte_size(H) ->
+do_split(H,[],N,true,_) when N >= byte_size(H) ->
[];
-do_split(H,[],N,_) ->
+do_split(H,[],N,_,true) when N >= byte_size(H) ->
+ [];
+do_split(H,[],N,_,_) ->
[binary:part(H,{N,byte_size(H)-N})];
-do_split(H,[{A,B}|T],N,Trim) ->
+do_split(H,[{A,B}|T],N,Trim,TrimAll) ->
case binary:part(H,{N,A-N}) of
+ <<>> when TrimAll == true ->
+ do_split(H,T,A+B,Trim,TrimAll);
<<>> ->
- Rest = do_split(H,T,A+B,Trim),
+ Rest = do_split(H,T,A+B,Trim,TrimAll),
case {Trim, Rest} of
{true,[]} ->
[];
@@ -257,7 +262,7 @@ do_split(H,[{A,B}|T],N,Trim) ->
[<<>> | Rest]
end;
Oth ->
- [Oth | do_split(H,T,A+B,Trim)]
+ [Oth | do_split(H,T,A+B,Trim,TrimAll)]
end.
@@ -346,14 +351,16 @@ splitat(H,N,[I|T]) ->
%% Simple helper functions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-get_opts_split([],{Part,Global,Trim}) ->
- {Part,Global,Trim};
-get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim}) ->
- get_opts_split(T,{{A,B},Global,Trim});
-get_opts_split([global | T],{Part,_Global,Trim}) ->
- get_opts_split(T,{Part,true,Trim});
-get_opts_split([trim | T],{Part,Global,_Trim}) ->
- get_opts_split(T,{Part,Global,true});
+get_opts_split([],{Part,Global,Trim,TrimAll}) ->
+ {Part,Global,Trim,TrimAll};
+get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim,TrimAll}) ->
+ get_opts_split(T,{{A,B},Global,Trim,TrimAll});
+get_opts_split([global | T],{Part,_Global,Trim,TrimAll}) ->
+ get_opts_split(T,{Part,true,Trim,TrimAll});
+get_opts_split([trim | T],{Part,Global,_Trim,TrimAll}) ->
+ get_opts_split(T,{Part,Global,true,TrimAll});
+get_opts_split([trim_all | T],{Part,Global,Trim,_TrimAll}) ->
+ get_opts_split(T,{Part,Global,Trim,true});
get_opts_split(_,_) ->
throw(badopt).
diff --git a/lib/stdlib/test/binary_module_SUITE.erl b/lib/stdlib/test/binary_module_SUITE.erl
index 32cec0db6f..f828c70b63 100644
--- a/lib/stdlib/test/binary_module_SUITE.erl
+++ b/lib/stdlib/test/binary_module_SUITE.erl
@@ -506,12 +506,35 @@ do_interesting(Module) ->
?line [<<1,2,3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
[<<4,5>>,<<7>>,<<8>>],
[global,trim]),
+ ?line [<<1,2,3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<4,5>>,<<7>>,<<8>>],
+ [global,trim_all]),
?line [<<1,2,3,4,5,6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
[<<4,5>>,<<7>>,<<8>>],
[global,trim,{scope,{0,4}}]),
?line [<<1,2,3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
[<<4,5>>,<<7>>,<<8>>],
[global,trim,{scope,{0,5}}]),
+
+ ?line [<<>>,<<>>,<<3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<1>>,<<2>>,<<4,5>>],
+ [global,trim]),
+ ?line [<<3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<1>>,<<2>>,<<4,5>>],
+ [global,trim_all]),
+
+ ?line [<<1,2,3>>,<<>>,<<7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<4,5>>,<<6>>],
+ [global,trim]),
+ ?line [<<1,2,3>>,<<7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<4,5>>,<<6>>],
+ [global,trim_all]),
+ ?line [<<>>,<<>>,<<3>>,<<>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<1>>,<<2>>,<<4>>,<<5>>,<<7>>,<<8>>],
+ [global,trim]),
+ ?line [<<3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>,
+ [<<1>>,<<2>>,<<4>>,<<5>>,<<7>>,<<8>>],
+ [global,trim_all]),
?line badarg = ?MASK_ERROR(
Module:replace(<<1,2,3,4,5,6,7,8>>,
[<<4,5>>,<<7>>,<<8>>],<<99>>,
@@ -1247,6 +1270,8 @@ do_random_split_comp(N,NeedleRange,HaystackRange) ->
true = do_split_comp(Needle,Haystack,[]),
true = do_split_comp(Needle,Haystack,[global]),
true = do_split_comp(Needle,Haystack,[global,trim]),
+ true = do_split_comp(Needle,Haystack,[global,trim_all]),
+ true = do_split_comp(Needle,Haystack,[global,trim,trim_all]),
do_random_split_comp(N-1,NeedleRange,HaystackRange).
do_random_split_comp2(0,_,_) ->
ok;
@@ -1257,6 +1282,9 @@ do_random_split_comp2(N,NeedleRange,HaystackRange) ->
_ <- lists:duplicate(NumNeedles,a)],
true = do_split_comp(Needles,Haystack,[]),
true = do_split_comp(Needles,Haystack,[global]),
+ true = do_split_comp(Needles,Haystack,[global,trim]),
+ true = do_split_comp(Needles,Haystack,[global,trim_all]),
+ true = do_split_comp(Needles,Haystack,[global,trim,trim_all]),
do_random_split_comp2(N-1,NeedleRange,HaystackRange).
do_split_comp(N,H,Opts) ->
diff --git a/lib/stdlib/test/binref.erl b/lib/stdlib/test/binref.erl
index 6d96736ef3..a52ea98e5a 100644
--- a/lib/stdlib/test/binref.erl
+++ b/lib/stdlib/test/binref.erl
@@ -155,7 +155,8 @@ split(Haystack,Needles0,Options) ->
true ->
exit(badtype)
end,
- {Part,Global,Trim} = get_opts_split(Options,{nomatch,false,false}),
+ {Part,Global,Trim,TrimAll} =
+ get_opts_split(Options,{nomatch,false,false,false}),
{Start,End,NewStack} =
case Part of
nomatch ->
@@ -180,20 +181,24 @@ split(Haystack,Needles0,Options) ->
[X]
end
end,
- do_split(Haystack,MList,0,Trim)
+ do_split(Haystack,MList,0,Trim,TrimAll)
catch
_:_ ->
erlang:error(badarg)
end.
-do_split(H,[],N,true) when N >= byte_size(H) ->
+do_split(H,[],N,true,_) when N >= byte_size(H) ->
[];
-do_split(H,[],N,_) ->
+do_split(H,[],N,_,true) when N >= byte_size(H) ->
+ [];
+do_split(H,[],N,_,_) ->
[part(H,{N,byte_size(H)-N})];
-do_split(H,[{A,B}|T],N,Trim) ->
+do_split(H,[{A,B}|T],N,Trim,TrimAll) ->
case part(H,{N,A-N}) of
+ <<>> when TrimAll == true ->
+ do_split(H,T,A+B,Trim,TrimAll);
<<>> ->
- Rest = do_split(H,T,A+B,Trim),
+ Rest = do_split(H,T,A+B,Trim,TrimAll),
case {Trim, Rest} of
{true,[]} ->
[];
@@ -201,7 +206,7 @@ do_split(H,[{A,B}|T],N,Trim) ->
[<<>> | Rest]
end;
Oth ->
- [Oth | do_split(H,T,A+B,Trim)]
+ [Oth | do_split(H,T,A+B,Trim,TrimAll)]
end.
@@ -565,14 +570,16 @@ get_opts_match([{scope,{A,B}} | T],_Part) ->
get_opts_match(_,_) ->
throw(badopt).
-get_opts_split([],{Part,Global,Trim}) ->
- {Part,Global,Trim};
-get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim}) ->
- get_opts_split(T,{{A,B},Global,Trim});
-get_opts_split([global | T],{Part,_Global,Trim}) ->
- get_opts_split(T,{Part,true,Trim});
-get_opts_split([trim | T],{Part,Global,_Trim}) ->
- get_opts_split(T,{Part,Global,true});
+get_opts_split([],{Part,Global,Trim,TrimAll}) ->
+ {Part,Global,Trim,TrimAll};
+get_opts_split([{scope,{A,B}} | T],{_Part,Global,Trim,TrimAll}) ->
+ get_opts_split(T,{{A,B},Global,Trim,TrimAll});
+get_opts_split([global | T],{Part,_Global,Trim,TrimAll}) ->
+ get_opts_split(T,{Part,true,Trim,TrimAll});
+get_opts_split([trim | T],{Part,Global,_Trim,TrimAll}) ->
+ get_opts_split(T,{Part,Global,true,TrimAll});
+get_opts_split([trim_all | T],{Part,Global,Trim,_TrimAll}) ->
+ get_opts_split(T,{Part,Global,Trim,true});
get_opts_split(_,_) ->
throw(badopt).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 05:09:14 +0000