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-rw-r--r--lib/stdlib/src/binary.erl4
-rw-r--r--lib/stdlib/test/binary_module_SUITE.erl96
-rw-r--r--lib/stdlib/test/binref.erl456
3 files changed, 554 insertions, 2 deletions
diff --git a/lib/stdlib/src/binary.erl b/lib/stdlib/src/binary.erl
index f2774f8c84..d649f974bb 100644
--- a/lib/stdlib/src/binary.erl
+++ b/lib/stdlib/src/binary.erl
@@ -19,8 +19,8 @@
-module(binary).
%%
%% The following functions implemented as BIF's
-%% binary:match_compile/1
-%% binary:match/3
+%% binary:compile_pattern/1
+%% binary:find/3
%% XXX:PaN more to come...
-export([first/1,first/2,last/1,last/2,nth/2,extract/3]).
diff --git a/lib/stdlib/test/binary_module_SUITE.erl b/lib/stdlib/test/binary_module_SUITE.erl
new file mode 100644
index 0000000000..31d0812cfc
--- /dev/null
+++ b/lib/stdlib/test/binary_module_SUITE.erl
@@ -0,0 +1,96 @@
+-module(binary_module_SUITE).
+
+-export([all/1, interesting/1]).
+
+-define(STANDALONE,1).
+
+-ifdef(STANDALONE).
+
+-define(line,erlang:display({?MODULE,?LINE}),).
+
+-else.
+
+-include("test_server.hrl").
+
+-endif.
+
+
+
+-ifdef(STANDALONE).
+-export([run/0]).
+
+run() ->
+ [ apply(?MODULE,X,[[]]) || X <- all(suite) ].
+
+-endif.
+
+all(suite) -> [interesting].
+
+
+interesting(doc) ->
+ ["Try some interesting patterns"];
+interesting(Config) when is_list(Config) ->
+ X = do_interesting(binary),
+ X = do_interesting(binref).
+
+do_interesting(Module) ->
+ ?line {0,4} = Module:match(<<"123456">>,
+ Module:compile_pattern([<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>,<<"6">>])),
+ ?line [{0,4},{5,1}] = Module:matches(<<"123456">>,
+ Module:compile_pattern([<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>,<<"6">>])),
+ ?line [{0,4}] = Module:matches(<<"123456">>,
+ Module:compile_pattern([<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>])),
+ ?line [{0,2},{2,2}] = Module:matches(<<"123456">>,
+ Module:compile_pattern([<<"12">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>])),
+ ?line {1,4} = Module:match(<<"123456">>,
+ Module:compile_pattern([<<"34">>,<<"34">>,
+ <<"12347">>,<<"2345">>])),
+ ?line [{1,4}] = Module:matches(<<"123456">>,
+ Module:compile_pattern([<<"34">>,<<"34">>,
+ <<"12347">>,<<"2345">>])),
+ ?line [{2,2}] = Module:matches(<<"123456">>,
+ Module:compile_pattern([<<"34">>,<<"34">>,
+ <<"12347">>,<<"2346">>])),
+
+ ?line {0,4} = Module:match(<<"123456">>,
+ [<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>,<<"6">>]),
+ ?line [{0,4},{5,1}] = Module:matches(<<"123456">>,
+ [<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>,<<"6">>]),
+ ?line [{0,4}] = Module:matches(<<"123456">>,
+ [<<"12">>,<<"1234">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>]),
+ ?line [{0,2},{2,2}] = Module:matches(<<"123456">>,
+ [<<"12">>,
+ <<"23">>,<<"3">>,
+ <<"34">>,<<"456">>,
+ <<"45">>]),
+ ?line {1,4} = Module:match(<<"123456">>,
+ [<<"34">>,<<"34">>,
+ <<"12347">>,<<"2345">>]),
+ ?line [{1,4}] = Module:matches(<<"123456">>,
+ [<<"34">>,<<"34">>,
+ <<"12347">>,<<"2345">>]),
+ ?line [{2,2}] = Module:matches(<<"123456">>,
+ [<<"34">>,<<"34">>,
+ <<"12347">>,<<"2346">>]),
+ ok.
diff --git a/lib/stdlib/test/binref.erl b/lib/stdlib/test/binref.erl
new file mode 100644
index 0000000000..270796c8f9
--- /dev/null
+++ b/lib/stdlib/test/binref.erl
@@ -0,0 +1,456 @@
+-module(binref).
+
+-export([compile_pattern/1,match/2,match/3,matches/2,matches/3,
+ split/2,split/3,replace/3,replace/4,first/1,last/1,at/2,
+ part/2,part/3,copy/1,copy/2,encode_unsigned/1,encode_unsigned/2,
+ decode_unsigned/1,decode_unsigned/2,referenced_byte_size/1]).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% compile_pattern, a dummy
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+compile_pattern(Pattern) when is_binary(Pattern) ->
+ {[Pattern]};
+compile_pattern(Pattern) ->
+ try
+ [ true = is_binary(P) || P <- Pattern ],
+ {Pattern}
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% match and matches
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+match(H,N) ->
+ match(H,N,[]).
+match(Haystack,Needle,Options) when is_binary(Needle) ->
+ match(Haystack,[Needle],Options);
+match(Haystack,{Needles},Options) ->
+ match(Haystack,Needles,Options);
+match(Haystack,Needles,Options) ->
+ try
+ true = is_binary(Haystack) and is_list(Needles), % badarg, not function_clause
+ case get_opts_match(Options,no) of
+ no ->
+ mloop(Haystack,Needles);
+ {A,B} when B > 0 ->
+ <<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
+ mloop(SubStack,Needles,A,B+A);
+ {A,B} when B < 0 ->
+ Start = A + B,
+ Len = -B,
+ <<_:Start/binary,SubStack:Len/binary,_/binary>> = Haystack,
+ mloop(SubStack,Needles,Start,Len+Start);
+ _ ->
+ no
+ end
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+matches(H,N) ->
+ matches(H,N,[]).
+matches(Haystack,Needle,Options) when is_binary(Needle) ->
+ matches(Haystack,[Needle],Options);
+matches(Haystack,{Needles},Options) ->
+ matches(Haystack,Needles,Options);
+matches(Haystack,Needles,Options) ->
+ try
+ true = is_binary(Haystack) and is_list(Needles), % badarg, not function_clause
+ case get_opts_match(Options,no) of
+ no ->
+ msloop(Haystack,Needles);
+ {A,B} when B > 0 ->
+ <<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
+ msloop(SubStack,Needles,A,B+A);
+ {A,B} when B < 0 ->
+ Start = A + B,
+ Len = -B,
+ <<_:Start/binary,SubStack:Len/binary,_/binary>> = Haystack,
+ msloop(SubStack,Needles,Start,Len+Start);
+ _ ->
+ []
+ end
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+mloop(Haystack,Needles) ->
+ mloop(Haystack,Needles,0,byte_size(Haystack)).
+
+mloop(_Haystack,_Needles,N,M) when N >= M ->
+ no;
+mloop(Haystack,Needles,N,M) ->
+ case mloop2(Haystack,Needles,N,no) of
+ no ->
+ % Not found
+ <<_:8,NewStack/binary>> = Haystack,
+ mloop(NewStack,Needles,N+1,M);
+ {N,Len} ->
+ {N,Len}
+ end.
+
+msloop(Haystack,Needles) ->
+ msloop(Haystack,Needles,0,byte_size(Haystack)).
+
+msloop(_Haystack,_Needles,N,M) when N >= M ->
+ [];
+msloop(Haystack,Needles,N,M) ->
+ case mloop2(Haystack,Needles,N,no) of
+ no ->
+ % Not found
+ <<_:8,NewStack/binary>> = Haystack,
+ msloop(NewStack,Needles,N+1,M);
+ {N,Len} ->
+ NewN = N+Len,
+ if
+ NewN >= M ->
+ [{N,Len}];
+ true ->
+ <<_:Len/binary,NewStack/binary>> = Haystack,
+ [{N,Len} | msloop(NewStack,Needles,NewN,M)]
+ end
+ end.
+
+mloop2(_Haystack,[],_N,Res) ->
+ Res;
+mloop2(Haystack,[Needle|Tail],N,Candidate) ->
+ NS = byte_size(Needle),
+ case Haystack of
+ <<Needle:NS/binary,_/binary>> ->
+ NewCandidate = case Candidate of
+ no ->
+ {N,NS};
+ {N,ONS} when ONS < NS ->
+ {N,NS};
+ Better ->
+ Better
+ end,
+ mloop2(Haystack,Tail,N,NewCandidate);
+ _ ->
+ mloop2(Haystack,Tail,N,Candidate)
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% split
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+split(H,N) ->
+ split(H,N,[]).
+split(Haystack,{Needles},Options) ->
+ split(Haystack, Needles, Options);
+split(Haystack,Needles,Options) ->
+ try
+ {Part,Global,Trim} = get_opts_split(Options,{no,false,false}),
+ {Start,End,NewStack} =
+ case Part of
+ no ->
+ {0,byte_size(Haystack),Haystack};
+ {A,B} when B >= 0 ->
+ <<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
+ {A,A+B,SubStack};
+ {A,B} when B < 0 ->
+ S = A + B,
+ L = -B,
+ <<_:S/binary,SubStack:L/binary,_/binary>> = Haystack,
+ {S,S+L,SubStack}
+ end,
+ MList = if
+ Global ->
+ msloop(NewStack,Needles,Start,End);
+ true ->
+ case mloop(NewStack,Needles,Start,End) of
+ no ->
+ [];
+ X ->
+ [X]
+ end
+ end,
+ do_split(Haystack,MList,0,Trim)
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+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) ->
+ case part(H,{N,A-N}) of
+ <<>> ->
+ Rest = do_split(H,T,A+B,Trim),
+ case {Trim, Rest} of
+ {true,[]} ->
+ [];
+ _ ->
+ [<<>> | Rest]
+ end;
+ Oth ->
+ [Oth | do_split(H,T,A+B,Trim)]
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% replace
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+replace(H,N,R) ->
+ replace(H,N,R,[]).
+replace(Haystack,{Needles},Replacement,Options) ->
+ replace(Haystack,Needles,Replacement,Options);
+
+replace(Haystack,Needles,Replacement,Options) ->
+ try
+ true = is_binary(Replacement), % Make badarg instead of function clause
+ {Part,Global,Insert} = get_opts_replace(Options,{no,false,[]}),
+ {Start,End,NewStack} =
+ case Part of
+ no ->
+ {0,byte_size(Haystack),Haystack};
+ {A,B} when B >= 0 ->
+ <<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
+ {A,A+B,SubStack};
+ {A,B} when B < 0 ->
+ S = A + B,
+ L = -B,
+ <<_:S/binary,SubStack:L/binary,_/binary>> = Haystack,
+ {S,S+L,SubStack}
+ end,
+ MList = if
+ Global ->
+ msloop(NewStack,Needles,Start,End);
+ true ->
+ case mloop(NewStack,Needles,Start,End) of
+ no ->
+ [];
+ X ->
+ [X]
+ end
+ end,
+ ReplList = case Insert of
+ [] ->
+ Replacement;
+ Y when is_integer(Y) ->
+ splitat(Replacement,0,[Y]);
+ Li when is_list(Li) ->
+ splitat(Replacement,0,lists:sort(Li))
+ end,
+ erlang:iolist_to_binary(do_replace(Haystack,MList,ReplList,0))
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+
+do_replace(H,[],_,N) ->
+ [part(H,{N,byte_size(H)-N})];
+do_replace(H,[{A,B}|T],Replacement,N) ->
+ [part(H,{N,A-N}),
+ if
+ is_list(Replacement) ->
+ do_insert(Replacement, part(H,{A,B}));
+ true ->
+ Replacement
+ end
+ | do_replace(H,T,Replacement,A+B)].
+
+do_insert([X],_) ->
+ [X];
+do_insert([H|T],R) ->
+ [H,R|do_insert(T,R)].
+
+splitat(H,N,[]) ->
+ [part(H,{N,byte_size(H)-N})];
+splitat(H,N,[I|T]) ->
+ [part(H,{N,I-N})|splitat(H,I,T)].
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% first, last and at
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+first(Subject) ->
+ try
+ <<A:8,_/binary>> = Subject,
+ A
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+last(Subject) ->
+ try
+ N = byte_size(Subject) - 1,
+ <<_:N/binary,A:8>> = Subject,
+ A
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+at(Subject,X) ->
+ try
+ <<_:X/binary,A:8,_/binary>> = Subject,
+ A
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% part
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+part(Subject,Part) ->
+ try
+ do_part(Subject,Part)
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+part(Subject,Pos,Len) ->
+ part(Subject,{Pos,Len}).
+
+do_part(Bin,{A,B}) when B >= 0 ->
+ <<_:A/binary,Sub:B/binary,_/binary>> = Bin,
+ Sub;
+do_part(Bin,{A,B}) when B < 0 ->
+ S = A + B,
+ L = -B,
+ <<_:S/binary,Sub:L/binary,_/binary>> = Bin,
+ Sub.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% copy
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+copy(Subject) ->
+ copy(Subject,1).
+copy(Subject,N) ->
+ try
+ true = is_integer(N) and (N > 0) and is_binary(Subject), % Badarg, not function clause
+ erlang:list_to_binary(lists:duplicate(N,Subject))
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_unsigned
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+encode_unsigned(Unsigned) ->
+ encode_unsigned(Unsigned,big).
+encode_unsigned(Unsigned,Endian) ->
+ try
+ true = is_integer(Unsigned) and (Unsigned >= 0),
+ if
+ Unsigned =:= 0 ->
+ <<0>>;
+ true ->
+ case Endian of
+ big ->
+ list_to_binary(do_encode(Unsigned,[]));
+ little ->
+ list_to_binary(do_encode_r(Unsigned))
+ end
+ end
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+do_encode(0,L) ->
+ L;
+do_encode(N,L) ->
+ Byte = N band 255,
+ NewN = N bsr 8,
+ do_encode(NewN,[Byte|L]).
+
+do_encode_r(0) ->
+ [];
+do_encode_r(N) ->
+ Byte = N band 255,
+ NewN = N bsr 8,
+ [Byte|do_encode_r(NewN)].
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% decode_unsigned
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+decode_unsigned(Subject) ->
+ decode_unsigned(Subject,big).
+
+decode_unsigned(Subject,Endian) ->
+ try
+ true = is_binary(Subject) and (byte_size(Subject) > 0),
+ case Endian of
+ big ->
+ do_decode(Subject,0);
+ little ->
+ do_decode_r(Subject,0)
+ end
+ catch
+ _:_ ->
+ erlang:error(badarg)
+ end.
+
+do_decode(<<>>,N) ->
+ N;
+do_decode(<<X:8,Bin/binary>>,N) ->
+ do_decode(Bin,(N bsl 8) bor X).
+
+do_decode_r(<<>>,N) ->
+ N;
+do_decode_r(Bin,N) ->
+ Sz = byte_size(Bin) - 1,
+ <<NewBin:Sz/binary,X>> = Bin,
+ do_decode_r(NewBin, (N bsl 8) bor X).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% referenced_byte_size cannot
+%% be implemented in pure
+%% erlang
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+referenced_byte_size(Bin) when is_binary(Bin) ->
+ erlang:error(not_implemented);
+referenced_byte_size(_) ->
+ erlang:error(badarg).
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Simple helper functions
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% Option "parsing"
+get_opts_match([],Part) ->
+ Part;
+get_opts_match([{scope,{A,B}} | T],_Part) ->
+ get_opts_match(T,{A,B});
+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(_,_) ->
+ throw(badopt).
+
+get_opts_replace([],{Part,Global,Insert}) ->
+ {Part,Global,Insert};
+get_opts_replace([{scope,{A,B}} | T],{_Part,Global,Insert}) ->
+ get_opts_replace(T,{{A,B},Global,Insert});
+get_opts_replace([global | T],{Part,_Global,Insert}) ->
+ get_opts_replace(T,{Part,true,Insert});
+get_opts_replace([{insert_replaced,N} | T],{Part,Global,_Insert}) ->
+ get_opts_replace(T,{Part,Global,N});
+get_opts_replace(_,_) ->
+ throw(badopt).
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