diff options
Diffstat (limited to 'lib/stdlib/test')
| -rw-r--r-- | lib/stdlib/test/Makefile | 2 | ||||
| -rw-r--r-- | lib/stdlib/test/binary_module_SUITE.erl | 1323 | ||||
| -rw-r--r-- | lib/stdlib/test/binref.erl | 588 |
3 files changed, 1913 insertions, 0 deletions
diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile index 9beac93eb8..3bbd9ce318 100644 --- a/lib/stdlib/test/Makefile +++ b/lib/stdlib/test/Makefile @@ -9,6 +9,8 @@ MODULES= \ array_SUITE \ base64_SUITE \ beam_lib_SUITE \ + binary_module_SUITE \ + binref \ c_SUITE \ calendar_SUITE \ dets_SUITE \ diff --git a/lib/stdlib/test/binary_module_SUITE.erl b/lib/stdlib/test/binary_module_SUITE.erl new file mode 100644 index 0000000000..16ed9a2c26 --- /dev/null +++ b/lib/stdlib/test/binary_module_SUITE.erl @@ -0,0 +1,1323 @@ +-module(binary_module_SUITE). + +-export([all/1, interesting/1,random_ref_comp/1,random_ref_sr_comp/1, + random_ref_fla_comp/1,parts/1, bin_to_list/1, list_to_bin/1, + copy/1, referenced/1,guard/1,encode_decode/1,badargs/1,longest_common_trap/1]). + +-export([random_number/1, make_unaligned/1]). + + + +%%-define(STANDALONE,1). + +-ifdef(STANDALONE). + +-define(line,erlang:display({?MODULE,?LINE}),). + +-else. + +-include("test_server.hrl"). +-export([init_per_testcase/2, fin_per_testcase/2]). +% Default timetrap timeout (set in init_per_testcase). +% Some of these testcases are really heavy... +-define(default_timeout, ?t:minutes(20)). + +-endif. + + + +-ifdef(STANDALONE). +-export([run/0]). + +run() -> + [ apply(?MODULE,X,[[]]) || X <- all(suite) ]. + +-else. + +init_per_testcase(_Case, Config) -> + ?line Dog = ?t:timetrap(?default_timeout), + [{watchdog, Dog} | Config]. + +fin_per_testcase(_Case, Config) -> + ?line Dog = ?config(watchdog, Config), + ?line test_server:timetrap_cancel(Dog), + ok. +-endif. + +all(suite) -> [interesting,random_ref_fla_comp,random_ref_sr_comp, + random_ref_comp,parts,bin_to_list, list_to_bin, copy, + referenced,guard,encode_decode,badargs,longest_common_trap]. + +-define(MASK_ERROR(EXPR),mask_error((catch (EXPR)))). + + +badargs(doc) -> + ["Tests various badarg exceptions in the module"]; +badargs(Config) when is_list(Config) -> + ?line badarg = ?MASK_ERROR(binary:compile_pattern([<<1,2,3:3>>])), + ?line badarg = ?MASK_ERROR(binary:compile_pattern([<<1,2,3>>|<<1,2>>])), + ?line badarg = ?MASK_ERROR(binary:compile_pattern(<<1,2,3:3>>)), + ?line badarg = ?MASK_ERROR(binary:compile_pattern(<<>>)), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3:3>>,<<1>>)), + ?line badarg = ?MASK_ERROR(binary:matches(<<1,2,3:3>>,<<1>>)), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>, + [{scope,{0,1},1}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>, + [{scape,{0,1}}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>, + [{scope,{0,1,1}}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>,[{scope,0,1}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>,[{scope,[0,1]}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>, + [{scope,{0.1,1}}])), + ?line badarg = ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>, + [{scope,{1,1.1}}])), + ?line badarg = + ?MASK_ERROR( + binary:match(<<1,2,3>>,<<1>>, + [{scope,{16#FF, + 16#FFFFFFFFFFFFFFFF}}])), + ?line badarg = + ?MASK_ERROR( + binary:match(<<1,2,3>>,<<1>>, + [{scope,{16#FFFFFFFFFFFFFFFF, + -16#7FFFFFFFFFFFFFFF-1}}])), + ?line badarg = + ?MASK_ERROR( + binary:match(<<1,2,3>>,<<1>>, + [{scope,{16#FFFFFFFFFFFFFFFF, + 16#7FFFFFFFFFFFFFFF}}])), + ?line badarg = + ?MASK_ERROR( + binary:part(<<1,2,3>>,{16#FF, + 16#FFFFFFFFFFFFFFFF})), + ?line badarg = + ?MASK_ERROR( + binary:part(<<1,2,3>>,{16#FFFFFFFFFFFFFFFF, + -16#7FFFFFFFFFFFFFFF-1})), + ?line badarg = + ?MASK_ERROR( + binary:part(<<1,2,3>>,{16#FFFFFFFFFFFFFFFF, + 16#7FFFFFFFFFFFFFFF})), + ?line badarg = + ?MASK_ERROR( + binary:part(make_unaligned(<<1,2,3>>),{1,1,1})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{1,1,1})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{16#FFFFFFFFFFFFFFFF, + -16#7FFFFFFFFFFFFFFF-1})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{16#FF, + 16#FFFFFFFFFFFFFFFF})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{16#FFFFFFFFFFFFFFFF, + 16#7FFFFFFFFFFFFFFF})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{16#FFFFFFFFFFFFFFFFFF, + -16#7FFF})), + ?line badarg = + ?MASK_ERROR( + binary_part(make_unaligned(<<1,2,3>>),{16#FF, + -16#7FFF})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{16#FF, + 16#FFFFFFFFFFFFFFFF})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{16#FFFFFFFFFFFFFFFF, + -16#7FFFFFFFFFFFFFFF-1})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{16#FFFFFFFFFFFFFFFF, + 16#7FFFFFFFFFFFFFFF})), + ?line [1,2,3] = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>)), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,[])), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{1,2,3})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{1.0,1})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3>>,{1,1.0})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3:3>>,{1,1})), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list(<<1,2,3:3>>)), + ?line badarg = + ?MASK_ERROR( + binary:bin_to_list([1,2,3])), + + ?line nomatch = + ?MASK_ERROR(binary:match(<<1,2,3>>,<<1>>,[{scope,{0,0}}])), + ?line badarg = + ?MASK_ERROR(binary:match(<<1,2,3>>,{bm,<<>>},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:match(<<1,2,3>>,[],[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:match(<<1,2,3>>,{ac,<<>>},[{scope,{0,1}}])), + ?line {bm,BMMagic} = binary:compile_pattern([<<1,2,3>>]), + ?line {ac,ACMagic} = binary:compile_pattern([<<1,2,3>>,<<4,5>>]), + ?line badarg = + ?MASK_ERROR(binary:match(<<1,2,3>>,{bm,ACMagic},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:match(<<1,2,3>>,{ac,BMMagic},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR( + binary:match(<<1,2,3>>, + {bm,ets:match_spec_compile([{'_',[],['$_']}])}, + [{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR( + binary:match(<<1,2,3>>, + {ac,ets:match_spec_compile([{'_',[],['$_']}])}, + [{scope,{0,1}}])), + ?line nomatch = + ?MASK_ERROR(binary:matches(<<1,2,3>>,<<1>>,[{scope,{0,0}}])), + ?line badarg = + ?MASK_ERROR(binary:matches(<<1,2,3>>,{bm,<<>>},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:matches(<<1,2,3>>,[],[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:matches(<<1,2,3>>,{ac,<<>>},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:matches(<<1,2,3>>,{bm,ACMagic},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:matches(<<1,2,3>>,{ac,BMMagic},[{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR( + binary:matches(<<1,2,3>>, + {bm,ets:match_spec_compile([{'_',[],['$_']}])}, + [{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR( + binary:matches(<<1,2,3>>, + {ac,ets:match_spec_compile([{'_',[],['$_']}])}, + [{scope,{0,1}}])), + ?line badarg = + ?MASK_ERROR(binary:longest_common_prefix( + [<<0:10000,1,2,4,1:3>>, + <<0:10000,1,2,3>>])), + ?line badarg = + ?MASK_ERROR(binary:longest_common_suffix( + [<<0:10000,1,2,4,1:3>>, + <<0:10000,1,2,3>>])), + ?line badarg = + ?MASK_ERROR(binary:encode_unsigned(-1)), + ?line badarg = + ?MASK_ERROR( + binary:encode_unsigned(-16#FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)), + ?line badarg = + ?MASK_ERROR( + binary:first(<<1,2,4,1:3>>)), + ?line badarg = + ?MASK_ERROR( + binary:first([1,2,4])), + ?line badarg = + ?MASK_ERROR( + binary:last(<<1,2,4,1:3>>)), + ?line badarg = + ?MASK_ERROR( + binary:last([1,2,4])), + ?line badarg = + ?MASK_ERROR( + binary:at(<<1,2,4,1:3>>,2)), + ?line badarg = + ?MASK_ERROR( + binary:at(<<>>,2)), + ?line badarg = + ?MASK_ERROR( + binary:at([1,2,4],2)), + ok. + +longest_common_trap(doc) -> + ["Whitebox test to force special trap conditions in longest_common_{prefix,suffix}"]; +longest_common_trap(Config) when is_list(Config) -> + ?line erts_debug:set_internal_state(available_internal_state,true), + ?line io:format("oldlimit: ~p~n", + [erts_debug:set_internal_state(binary_loop_limit,10)]), + erlang:bump_reductions(10000000), + ?line _ = binary:longest_common_prefix( + [<<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0:10000,1,3,3>>, + <<0:10000,1,2,4>>]), + ?line _ = binary:longest_common_prefix( + [<<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0,0,0,0,0,0,0,0,0,0,0,0,0,0>>, + <<0:10000,1,2,4>>]), + erlang:bump_reductions(10000000), + ?line _ = binary:longest_common_suffix( + [<<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,3,3,0:10000,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0>>, + <<1,2,4,0:10000>>]), + ?line _ = binary:longest_common_suffix( + [<<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<1,2,4,0:10000>>, + <<0,0,0,0,0,0,0,0,0,0,0,0,0,0>>, + <<1,2,4,0:10000>>]), + Subj = subj(), + Len = byte_size(Subj), + ?line Len = binary:longest_common_suffix( + [Subj,Subj,Subj]), + ?line io:format("limit was: ~p~n", + [erts_debug:set_internal_state(binary_loop_limit, + default)]), + ?line erts_debug:set_internal_state(available_internal_state,false), + ok. + +subj() -> + Me = self(), + spawn(fun() -> + X0 = iolist_to_binary([ + "1234567890", + %lists:seq(16#21, 16#7e), + lists:duplicate(100, $x) + ]), + Me ! X0, + receive X -> X end + end), + X0 = receive A -> A end, + <<X1:32/binary,_/binary>> = X0, + Subject= <<X1/binary>>, + Subject. + + +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">>]), + ?line nomatch = Module:match(<<1,2,3,4>>,<<2>>,[{scope,{0,1}}]), + ?line {1,1} = Module:match(<<1,2,3,4>>,<<2>>,[{scope,{0,2}}]), + ?line nomatch = Module:match(<<1,2,3,4>>,<<2,3>>,[{scope,{0,2}}]), + ?line {1,2} = Module:match(<<1,2,3,4>>,<<2,3>>,[{scope,{0,3}}]), + ?line {1,2} = Module:match(<<1,2,3,4>>,<<2,3>>,[{scope,{0,4}}]), + ?line badarg = ?MASK_ERROR(Module:match(<<1,2,3,4>>,<<2,3>>, + [{scope,{0,5}}])), + ?line {1,2} = Module:match(<<1,2,3,4>>,<<2,3>>,[{scope,{4,-4}}]), + ?line {0,3} = Module:match(<<1,2,3,4>>,<<1,2,3>>,[{scope,{4,-4}}]), + ?line {0,4} = Module:match(<<1,2,3,4>>,<<1,2,3,4>>,[{scope,{4,-4}}]), + ?line badarg = ?MASK_ERROR(Module:match(<<1,2,3,4>>,<<1,2,3,4>>, + [{scope,{3,-4}}])), + ?line [] = Module:matches(<<1,2,3,4>>,<<2>>,[{scope,{0,1}}]), + ?line [{1,1}] = Module:matches(<<1,2,3,4>>,[<<2>>,<<3>>],[{scope,{0,2}}]), + ?line [] = Module:matches(<<1,2,3,4>>,<<2,3>>,[{scope,{0,2}}]), + ?line [{1,2}] = Module:matches(<<1,2,3,4>>,<<2,3>>,[{scope,{0,3}}]), + ?line [{1,2}] = Module:matches(<<1,2,3,4>>,<<2,3>>,[{scope,{0,4}}]), + ?line [{1,2}] = Module:matches(<<1,2,3,4>>,[<<2,3>>,<<4>>], + [{scope,{0,3}}]), + ?line [{1,2},{3,1}] = Module:matches(<<1,2,3,4>>,[<<2,3>>,<<4>>], + [{scope,{0,4}}]), + ?line badarg = ?MASK_ERROR(Module:matches(<<1,2,3,4>>,<<2,3>>, + [{scope,{0,5}}])), + ?line [{1,2}] = Module:matches(<<1,2,3,4>>,<<2,3>>,[{scope,{4,-4}}]), + ?line [{1,2},{3,1}] = Module:matches(<<1,2,3,4>>,[<<2,3>>,<<4>>], + [{scope,{4,-4}}]), + ?line [{0,3}] = Module:matches(<<1,2,3,4>>,<<1,2,3>>,[{scope,{4,-4}}]), + ?line [{0,4}] = Module:matches(<<1,2,3,4>>,<<1,2,3,4>>,[{scope,{4,-4}}]), + ?line badarg = ?MASK_ERROR(Module:matches(<<1,2,3,4>>,<<1,2,3,4>>, + [{scope,{3,-4}}])), + ?line badarg = ?MASK_ERROR(Module:matches(<<1,2,3,4>>,[<<1,2,3,4>>], + [{scope,{3,-4}}])), + ?line [<<1,2,3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>,<<4,5>>), + ?line [<<1,2,3>>,<<6,7,8>>] = Module:split(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>]), + ?line [<<1,2,3>>,<<6>>,<<8>>] = Module:split(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>],[global]), + ?line [<<1,2,3>>,<<6>>,<<>>,<<>>] = Module:split(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>], + [global]), + ?line [<<1,2,3>>,<<6>>] = Module:split(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>], + [global,trim]), + ?line [<<1,2,3,4,5,6,7,8>>] = 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 badarg = ?MASK_ERROR( + Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,trim,{scope,{0,5}}])), + ?line <<1,2,3,99,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>,[]), + ?line <<1,2,3,99,6,99,99>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global]), + ?line <<1,2,3,99,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,{scope,{0,5}}]), + ?line <<1,2,3,99,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,{scope,{0,5}}]), + ?line <<1,2,3,99,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,{scope,{0,5}}]), + ?line badarg = ?MASK_ERROR(Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,{scope,{0,5}}, + {insert,1}])), + ?line <<1,2,3,99,4,5,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<99>>, + [global,{scope,{0,5}}, + {insert_replaced,1}]), + ?line <<1,2,3,9,4,5,9,6,7,8>> = Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>], + <<9,9>>, + [global,{scope,{0,5}}, + {insert_replaced,1}]), + ?line badarg = ?MASK_ERROR(Module:replace(<<1,2,3,4,5,6,7,8>>, + [<<4,5>>,<<7>>,<<8>>],<<>>, + [global,{scope,{0,5}}, + {insert_replaced,1}])), + ?line 2 = Module:longest_common_prefix([<<1,2,4>>,<<1,2,3>>]), + ?line 2 = Module:longest_common_prefix([<<1,2,4>>,<<1,2>>]), + ?line 1 = Module:longest_common_prefix([<<1,2,4>>,<<1>>]), + ?line 0 = Module:longest_common_prefix([<<1,2,4>>,<<>>]), + ?line 1 = Module:longest_common_prefix([<<1,2,4>>,<<1,2,3>>,<<1,3,3>>]), + ?line 1 = Module:longest_common_prefix([<<1,2,4>>,<<1,2,3>>,<<1,3,3>>,<<1,2,4>>]), + ?line 1251 = Module:longest_common_prefix([<<0:10000,1,2,4>>, + <<0:10000,1,2,3>>, + <<0:10000,1,3,3>>, + <<0:10000,1,2,4>>]), + ?line 12501 = Module:longest_common_prefix([<<0:100000,1,2,4>>, + <<0:100000,1,2,3>>, + <<0:100000,1,3,3>>, + <<0:100000,1,2,4>>]), + ?line 1251 = Module:longest_common_prefix( + [make_unaligned(<<0:10000,1,2,4>>), + <<0:10000,1,2,3>>, + make_unaligned(<<0:10000,1,3,3>>), + <<0:10000,1,2,4>>]), + ?line 12501 = Module:longest_common_prefix( + [<<0:100000,1,2,4>>, + make_unaligned(<<0:100000,1,2,3>>), + <<0:100000,1,3,3>>, + make_unaligned(<<0:100000,1,2,4>>)]), + ?line 1250001 = Module:longest_common_prefix([<<0:10000000,1,2,4>>, + <<0:10000000,1,2,3>>, + <<0:10000000,1,3,3>>, + <<0:10000000,1,2,4>>]), + if % Too cruel for the reference implementation + Module =:= binary -> + ?line erts_debug:set_internal_state(available_internal_state,true), + ?line io:format("oldlimit: ~p~n", + [erts_debug:set_internal_state( + binary_loop_limit,100)]), + ?line 1250001 = Module:longest_common_prefix( + [<<0:10000000,1,2,4>>, + <<0:10000000,1,2,3>>, + <<0:10000000,1,3,3>>, + <<0:10000000,1,2,4>>]), + ?line io:format("limit was: ~p~n", + [erts_debug:set_internal_state(binary_loop_limit, + default)]), + ?line erts_debug:set_internal_state(available_internal_state, + false); + true -> + ok + end, + ?line 1 = Module:longest_common_suffix([<<0:100000000,1,2,4,5>>, + <<0:100000000,1,2,3,5>>, + <<0:100000000,1,3,3,5>>, + <<0:100000000,1,2,4,5>>]), + ?line 1 = Module:longest_common_suffix([<<1,2,4,5>>, + <<0:100000000,1,2,3,5>>, + <<0:100000000,1,3,3,5>>, + <<0:100000000,1,2,4,5>>]), + ?line 1 = Module:longest_common_suffix([<<1,2,4,5,5>>,<<5,5>>, + <<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5>>]), + ?line 0 = Module:longest_common_suffix([<<1,2,4,5,5>>,<<5,5>>, + <<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4>>]), + ?line 2 = Module:longest_common_suffix([<<1,2,4,5,5>>,<<5,5>>, + <<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 1 = Module:longest_common_suffix([<<1,2,4,5,5>>,<<5>>, + <<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 0 = Module:longest_common_suffix([<<1,2,4,5,5>>,<<>>, + <<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 0 = Module:longest_common_suffix([<<>>,<<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 0 = Module:longest_common_suffix([<<>>,<<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 2 = Module:longest_common_suffix([<<5,5>>,<<0:100000000,1,3,3,5,5>>, + <<0:100000000,1,2,4,5,5>>]), + ?line 2 = Module:longest_common_suffix([<<5,5>>,<<5,5>>,<<4,5,5>>]), + ?line 2 = Module:longest_common_suffix([<<5,5>>,<<5,5>>,<<5,5>>]), + ?line 3 = Module:longest_common_suffix([<<4,5,5>>,<<4,5,5>>,<<4,5,5>>]), + ?line 0 = Module:longest_common_suffix([<<>>]), + ?line badarg = ?MASK_ERROR(Module:longest_common_suffix([])), + ?line badarg = ?MASK_ERROR(Module:longest_common_suffix([apa])), + ?line badarg = ?MASK_ERROR(Module:longest_common_suffix([[<<>>]])), + ?line badarg = ?MASK_ERROR(Module:longest_common_suffix([[<<0>>, + <<1:9>>]])), + ?line 0 = Module:longest_common_prefix([<<>>]), + ?line badarg = ?MASK_ERROR(Module:longest_common_prefix([])), + ?line badarg = ?MASK_ERROR(Module:longest_common_prefix([apa])), + ?line badarg = ?MASK_ERROR(Module:longest_common_prefix([[<<>>]])), + ?line badarg = ?MASK_ERROR(Module:longest_common_prefix([[<<0>>, + <<1:9>>]])), + + ?line <<1:6,Bin:3/binary,_:2>> = <<1:6,1,2,3,1:2>>, + ?line <<1,2,3>> = Bin, + ?line 1 = Module:first(Bin), + ?line 1 = Module:first(<<1>>), + ?line 1 = Module:first(<<1,2,3>>), + ?line badarg = ?MASK_ERROR(Module:first(<<>>)), + ?line badarg = ?MASK_ERROR(Module:first(apa)), + ?line 3 = Module:last(Bin), + ?line 1 = Module:last(<<1>>), + ?line 3 = Module:last(<<1,2,3>>), + ?line badarg = ?MASK_ERROR(Module:last(<<>>)), + ?line badarg = ?MASK_ERROR(Module:last(apa)), + ?line 1 = Module:at(Bin,0), + ?line 1 = Module:at(<<1>>,0), + ?line 1 = Module:at(<<1,2,3>>,0), + ?line 2 = Module:at(<<1,2,3>>,1), + ?line 3 = Module:at(<<1,2,3>>,2), + ?line badarg = ?MASK_ERROR(Module:at(<<1,2,3>>,3)), + ?line badarg = ?MASK_ERROR(Module:at(<<1,2,3>>,-1)), + ?line badarg = ?MASK_ERROR(Module:at(<<1,2,3>>,apa)), + ?line "hejsan" = [ Module:at(<<"hejsan">>,I) || I <- lists:seq(0,5) ], + + ?line badarg = ?MASK_ERROR(Module:bin_to_list(<<1,2,3>>,3,-4)), + ?line [1,2,3] = ?MASK_ERROR(Module:bin_to_list(<<1,2,3>>,3,-3)), + + ?line badarg = ?MASK_ERROR(Module:decode_unsigned(<<1,2,1:2>>,big)), + ?line badarg = ?MASK_ERROR(Module:decode_unsigned(<<1,2,1:2>>,little)), + ?line badarg = ?MASK_ERROR(Module:decode_unsigned(apa)), + ?line badarg = ?MASK_ERROR(Module:decode_unsigned(125,little)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(<<>>,little)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(<<>>,big)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(<<0>>,little)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(<<0>>,big)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(make_unaligned(<<0>>), + little)), + ?line 0 = ?MASK_ERROR(Module:decode_unsigned(make_unaligned(<<0>>),big)), + ?line badarg = ?MASK_ERROR(Module:encode_unsigned(apa)), + ?line badarg = ?MASK_ERROR(Module:encode_unsigned(125.3,little)), + ?line badarg = ?MASK_ERROR(Module:encode_unsigned({1},little)), + ?line badarg = ?MASK_ERROR(Module:encode_unsigned([1],little)), + ?line <<0>> = ?MASK_ERROR(Module:encode_unsigned(0,little)), + ?line <<0>> = ?MASK_ERROR(Module:encode_unsigned(0,big)), + ok. + +encode_decode(doc) -> + ["test binary:encode_unsigned/1,2 and binary:decode_unsigned/1,2"]; +encode_decode(Config) when is_list(Config) -> + ?line random:seed({1271,769940,559934}), + ?line ok = encode_decode_loop({1,200},1000), % Need to be long enough + % to create offheap binaries + ok. + +encode_decode_loop(_Range,0) -> + ok; +encode_decode_loop(Range, X) -> + ?line N = random_number(Range), + ?line A = binary:encode_unsigned(N), + ?line B = binary:encode_unsigned(N,big), + ?line C = binref:encode_unsigned(N), + ?line D = binref:encode_unsigned(N,big), + ?line E = binary:encode_unsigned(N,little), + ?line F = binref:encode_unsigned(N,little), + ?line G = binary:decode_unsigned(A), + ?line H = binary:decode_unsigned(A,big), + ?line I = binref:decode_unsigned(A), + ?line J = binary:decode_unsigned(E,little), + ?line K = binref:decode_unsigned(E,little), + ?line L = binary:decode_unsigned(make_unaligned(A)), + ?line M = binary:decode_unsigned(make_unaligned(E),little), + ?line PaddedBig = <<0:48,A/binary>>, + ?line PaddedLittle = <<E/binary,0:48>>, + ?line O = binary:decode_unsigned(PaddedBig), + ?line P = binary:decode_unsigned(make_unaligned(PaddedBig)), + ?line Q = binary:decode_unsigned(PaddedLittle,little), + ?line R = binary:decode_unsigned(make_unaligned(PaddedLittle),little), + ?line S = binref:decode_unsigned(PaddedLittle,little), + ?line T = binref:decode_unsigned(PaddedBig), + case (((A =:= B) and (B =:= C) and (C =:= D)) and + ((E =:= F)) and + ((N =:= G) and (G =:= H) and (H =:= I) and + (I =:= J) and (J =:= K) and (K =:= L) and (L =:= M)) and + ((M =:= O) and (O =:= P) and (P =:= Q) and (Q =:= R) and + (R =:= S) and (S =:= T)))of + true -> + encode_decode_loop(Range,X-1); + _ -> + io:format("Failed to encode/decode ~w~n(Results ~p)~n", + [N,[A,B,C,D,E,F,G,H,I,J,K,L,M,x,O,P,Q,R,S,T]]), + exit(mismatch) + end. + +guard(doc) -> + ["Smoke test of the guard BIFs binary_part/2,3"]; +guard(Config) when is_list(Config) -> + {comment, "Guard tests are run in emulator test suite"}. + +referenced(doc) -> + ["Test refernced_byte_size/1 bif."]; +referenced(Config) when is_list(Config) -> + ?line badarg = ?MASK_ERROR(binary:referenced_byte_size([])), + ?line badarg = ?MASK_ERROR(binary:referenced_byte_size(apa)), + ?line badarg = ?MASK_ERROR(binary:referenced_byte_size({})), + ?line badarg = ?MASK_ERROR(binary:referenced_byte_size(1)), + ?line A = <<1,2,3>>, + ?line B = binary:copy(A,1000), + ?line 3 = binary:referenced_byte_size(A), + ?line 3000 = binary:referenced_byte_size(B), + ?line <<_:8,C:2/binary>> = A, + ?line 3 = binary:referenced_byte_size(C), + ?line 2 = binary:referenced_byte_size(binary:copy(C)), + ?line <<_:7,D:2/binary,_:1>> = A, + ?line 2 = binary:referenced_byte_size(binary:copy(D)), + ?line 3 = binary:referenced_byte_size(D), + ?line <<_:8,E:2/binary,_/binary>> = B, + ?line 3000 = binary:referenced_byte_size(E), + ?line 2 = binary:referenced_byte_size(binary:copy(E)), + ?line <<_:7,F:2/binary,_:1,_/binary>> = B, + ?line 2 = binary:referenced_byte_size(binary:copy(F)), + ?line 3000 = binary:referenced_byte_size(F), + ok. + + + +list_to_bin(doc) -> + ["Test list_to_bin/1 bif"]; +list_to_bin(Config) when is_list(Config) -> + %% Just some smoke_tests first, then go nuts with random cases + ?line badarg = ?MASK_ERROR(binary:list_to_bin({})), + ?line badarg = ?MASK_ERROR(binary:list_to_bin(apa)), + ?line badarg = ?MASK_ERROR(binary:list_to_bin(<<"apa">>)), + F1 = fun(L) -> + ?MASK_ERROR(binref:list_to_bin(L)) + end, + F2 = fun(L) -> + ?MASK_ERROR(binary:list_to_bin(L)) + end, + ?line random_iolist:run(1000,F1,F2), + ok. + +copy(doc) -> + ["Test copy/1,2 bif's"]; +copy(Config) when is_list(Config) -> + ?line <<1,2,3>> = binary:copy(<<1,2,3>>), + ?line RS = random_string({1,10000}), + ?line RS = RS2 = binary:copy(RS), + ?line false = erts_debug:same(RS,RS2), + ?line <<>> = ?MASK_ERROR(binary:copy(<<1,2,3>>,0)), + ?line badarg = ?MASK_ERROR(binary:copy(<<1,2,3:3>>,2)), + ?line badarg = ?MASK_ERROR(binary:copy([],0)), + ?line <<>> = ?MASK_ERROR(binary:copy(<<>>,0)), + ?line badarg = ?MASK_ERROR(binary:copy(<<1,2,3>>,1.0)), + ?line badarg = ?MASK_ERROR(binary:copy(<<1,2,3>>, + 16#FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)), + ?line <<>> = binary:copy(<<>>,10000), + ?line random:seed({1271,769940,559934}), + ?line ok = random_copy(3000), + ?line erts_debug:set_internal_state(available_internal_state,true), + ?line io:format("oldlimit: ~p~n", + [erts_debug:set_internal_state(binary_loop_limit,10)]), + ?line Subj = subj(), + ?line XX = binary:copy(Subj,1000), + ?line XX = binref:copy(Subj,1000), + ?line ok = random_copy(1000), + ?line kill_copy_loop(1000), + ?line io:format("limit was: ~p~n", + [erts_debug:set_internal_state(binary_loop_limit, + default)]), + ?line erts_debug:set_internal_state(available_internal_state,false), + ok. + +kill_copy_loop(0) -> + ok; +kill_copy_loop(N) -> + {Pid,Ref} = spawn_monitor(fun() -> + ok = random_copy(1000) + end), + receive + after 10 -> + ok + end, + exit(Pid,kill), + receive + {'DOWN',Ref,process,Pid,_} -> + kill_copy_loop(N-1) + after 1000 -> + exit(did_not_die) + end. + +random_copy(0) -> + ok; +random_copy(N) -> + Str = random_string({0,N}), + Num = random:uniform(N div 10+1), + A = ?MASK_ERROR(binary:copy(Str,Num)), + B = ?MASK_ERROR(binref:copy(Str,Num)), + C = ?MASK_ERROR(binary:copy(make_unaligned(Str),Num)), + case {(A =:= B), (B =:= C)} of + {true,true} -> + random_copy(N-1); + _ -> + io:format("Failed to pick copy ~s ~p times~n", + [Str,Num]), + io:format("A:~p,~nB:~p,~n,C:~p.~n", + [A,B,C]), + exit(mismatch) + end. + +bin_to_list(doc) -> + ["Test bin_to_list/1,2,3 bif's"]; +bin_to_list(Config) when is_list(Config) -> + %% Just some smoke_tests first, then go nuts with random cases + ?line X = <<1,2,3,4,0:1000000,5>>, + ?line Y = make_unaligned(X), + ?line LX = binary:bin_to_list(X), + ?line LX = binary:bin_to_list(X,0,byte_size(X)), + ?line LX = binary:bin_to_list(X,byte_size(X),-byte_size(X)), + ?line LX = binary:bin_to_list(X,{0,byte_size(X)}), + ?line LX = binary:bin_to_list(X,{byte_size(X),-byte_size(X)}), + ?line LY = binary:bin_to_list(Y), + ?line LY = binary:bin_to_list(Y,0,byte_size(Y)), + ?line LY = binary:bin_to_list(Y,byte_size(Y),-byte_size(Y)), + ?line LY = binary:bin_to_list(Y,{0,byte_size(Y)}), + ?line LY = binary:bin_to_list(Y,{byte_size(Y),-byte_size(Y)}), + ?line 1 = hd(LX), + ?line 5 = lists:last(LX), + ?line 1 = hd(LY), + ?line 5 = lists:last(LY), + ?line X = list_to_binary(LY), + ?line Y = list_to_binary(LY), + ?line X = list_to_binary(LY), + ?line [5] = lists:nthtail(byte_size(X)-1,LX), + ?line [0,5] = lists:nthtail(byte_size(X)-2,LX), + ?line [0,5] = lists:nthtail(byte_size(Y)-2,LY), + ?line random:seed({1271,769940,559934}), + ?line ok = random_bin_to_list(5000), + ok. + +random_bin_to_list(0) -> + ok; +random_bin_to_list(N) -> + Str = random_string({1,N}), + Parts0 = random_parts(10,N), + Parts1 = Parts0 ++ [ {X+Y,-Y} || {X,Y} <- Parts0 ], + [ begin + try + true = ?MASK_ERROR(binary:bin_to_list(Str,Z)) =:= + ?MASK_ERROR(binref:bin_to_list(Str,Z)), + true = ?MASK_ERROR(binary:bin_to_list(Str,Z)) =:= + ?MASK_ERROR(binary:bin_to_list(make_unaligned(Str),Z)) + catch + _:_ -> + io:format("Error, Str = <<\"~s\">>.~nZ = ~p.~n", + [Str,Z]), + exit(badresult) + end + end || Z <- Parts1 ], + [ begin + try + true = ?MASK_ERROR(binary:bin_to_list(Str,A,B)) =:= + ?MASK_ERROR(binref:bin_to_list(Str,A,B)), + true = ?MASK_ERROR(binary:bin_to_list(Str,A,B)) =:= + ?MASK_ERROR(binary:bin_to_list(make_unaligned(Str),A,B)) + catch + _:_ -> + io:format("Error, Str = <<\"~s\">>.~nA = ~p.~nB = ~p.~n", + [Str,A,B]), + exit(badresult) + end + end || {A,B} <- Parts1 ], + random_bin_to_list(N-1). + +parts(doc) -> + ["Test the part/2,3 bif's"]; +parts(Config) when is_list(Config) -> + %% Some simple smoke tests to begin with + ?line Simple = <<1,2,3,4,5,6,7,8>>, + ?line <<1,2>> = binary:part(Simple,0,2), + ?line <<1,2>> = binary:part(Simple,{0,2}), + ?line Simple = binary:part(Simple,0,8), + ?line Simple = binary:part(Simple,{0,8}), + ?line badarg = ?MASK_ERROR(binary:part(Simple,0,9)), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{0,9})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,1,8)), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{1,8})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{3,-4})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{3.0,1})), + ?line badarg = ?MASK_ERROR( + binary:part(Simple,{16#FFFFFFFFFFFFFFFFFFFFFFFFFFFFF + ,1})), + ?line <<2,3,4,5,6,7,8>> = binary:part(Simple,{1,7}), + ?line <<2,3,4,5,6,7,8>> = binary:part(Simple,{8,-7}), + ?line Simple = binary:part(Simple,{8,-8}), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{1,-8})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{8,-9})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{0,-1})), + ?line <<>> = binary:part(Simple,{8,0}), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{9,0})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{-1,0})), + ?line badarg = ?MASK_ERROR(binary:part(Simple,{7,2})), + ?line <<8>> = binary:part(Simple,{7,1}), + ?line random:seed({1271,769940,559934}), + ?line random_parts(5000), + ok. + + +random_parts(0) -> + ok; +random_parts(N) -> + Str = random_string({1,N}), + Parts0 = random_parts(10,N), + Parts1 = Parts0 ++ [ {X+Y,-Y} || {X,Y} <- Parts0 ], + [ begin + true = ?MASK_ERROR(binary:part(Str,Z)) =:= + ?MASK_ERROR(binref:part(Str,Z)), + true = ?MASK_ERROR(binary:part(Str,Z)) =:= + ?MASK_ERROR(erlang:binary_part(Str,Z)), + true = ?MASK_ERROR(binary:part(Str,Z)) =:= + ?MASK_ERROR(binary:part(make_unaligned(Str),Z)) + end || Z <- Parts1 ], + random_parts(N-1). + +random_parts(0,_) -> + []; +random_parts(X,N) -> + Pos = random:uniform(N), + Len = random:uniform((Pos * 12) div 10), + [{Pos,Len} | random_parts(X-1,N)]. + +random_ref_comp(doc) -> + ["Test pseudorandomly generated cases against reference imlementation"]; +random_ref_comp(Config) when is_list(Config) -> + ?line put(success_counter,0), + ?line random:seed({1271,769940,559934}), + ?line do_random_match_comp(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_match_comp2(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_match_comp3(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_match_comp4(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_matches_comp(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_matches_comp2(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_matches_comp3(5,{1,40},{30,1000}), + ?line erts_debug:set_internal_state(available_internal_state,true), + ?line io:format("oldlimit: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,100)]), + ?line do_random_match_comp(5000,{1,40},{30,1000}), + ?line do_random_matches_comp3(5,{1,40},{30,1000}), + ?line io:format("limit was: ~p~n",[ erts_debug:set_internal_state(binary_loop_limit,default)]), + ?line erts_debug:set_internal_state(available_internal_state,false), + ok. + +random_ref_sr_comp(doc) -> + ["Test pseudorandomly generated cases against reference imlementation of split and replace"]; +random_ref_sr_comp(Config) when is_list(Config) -> + ?line put(success_counter,0), + ?line random:seed({1271,769940,559934}), + ?line do_random_split_comp(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_replace_comp(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_split_comp2(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ?line do_random_replace_comp2(5000,{1,40},{30,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ok. +random_ref_fla_comp(doc) -> + ["Test pseudorandomly generated cases against reference imlementation of split and replace"]; +random_ref_fla_comp(Config) when is_list(Config) -> + ?line put(success_counter,0), + ?line random:seed({1271,769940,559934}), + ?line do_random_first_comp(5000,{1,1000}), + ?line do_random_last_comp(5000,{1,1000}), + ?line do_random_at_comp(5000,{1,1000}), + io:format("Number of successes: ~p~n",[get(success_counter)]), + ok. + +do_random_first_comp(0,_) -> + ok; +do_random_first_comp(N,Range) -> + S = random_string(Range), + A = ?MASK_ERROR(binref:first(S)), + B = ?MASK_ERROR(binary:first(S)), + C = ?MASK_ERROR(binary:first(make_unaligned(S))), + case {(A =:= B), (B =:= C)} of + {true,true} -> + do_random_first_comp(N-1,Range); + _ -> + io:format("Failed to pick first of ~s~n", + [S]), + io:format("A:~p,~nB:~p,~n,C:~p.~n", + [A,B,C]), + exit(mismatch) + end. + +do_random_last_comp(0,_) -> + ok; +do_random_last_comp(N,Range) -> + S = random_string(Range), + A = ?MASK_ERROR(binref:last(S)), + B = ?MASK_ERROR(binary:last(S)), + C = ?MASK_ERROR(binary:last(make_unaligned(S))), + case {(A =:= B), (B =:= C)} of + {true,true} -> + do_random_last_comp(N-1,Range); + _ -> + io:format("Failed to pick last of ~s~n", + [S]), + io:format("A:~p,~nB:~p,~n,C:~p.~n", + [A,B,C]), + exit(mismatch) + end. +do_random_at_comp(0,_) -> + ok; +do_random_at_comp(N,{Min,Max}=Range) -> + S = random_string(Range), + XMax = Min + ((Max - Min) * 3) div 4, + Pos = random_length({Min,XMax}), %% some out of range + A = ?MASK_ERROR(binref:at(S,Pos)), + B = ?MASK_ERROR(binary:at(S,Pos)), + C = ?MASK_ERROR(binary:at(make_unaligned(S),Pos)), + if + A =/= badarg -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case {(A =:= B), (B =:= C)} of + {true,true} -> + do_random_at_comp(N-1,Range); + _ -> + io:format("Failed to pick last of ~s~n", + [S]), + io:format("A:~p,~nB:~p,~n,C:~p.~n", + [A,B,C]), + exit(mismatch) + end. + +do_random_matches_comp(0,_,_) -> + ok; +do_random_matches_comp(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Needles = [random_string(NeedleRange) || + _ <- lists:duplicate(NumNeedles,a)], + Haystack = random_string(HaystackRange), + true = do_matches_comp(Needles,Haystack), + do_random_matches_comp(N-1,NeedleRange,HaystackRange). + +do_random_matches_comp2(0,_,_) -> + ok; +do_random_matches_comp2(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_substring(NeedleRange,Haystack) || + _ <- lists:duplicate(NumNeedles,a)], + true = do_matches_comp(Needles,Haystack), + do_random_matches_comp2(N-1,NeedleRange,HaystackRange). + +do_random_matches_comp3(0,_,_) -> + ok; +do_random_matches_comp3(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_substring(NeedleRange,Haystack) || + _ <- lists:duplicate(NumNeedles,a)], + RefRes = binref:matches(Haystack,Needles), + true = do_matches_comp_loop(10000,Needles,Haystack, RefRes), + do_random_matches_comp3(N-1,NeedleRange,HaystackRange). + +do_matches_comp_loop(0,_,_,_) -> + true; +do_matches_comp_loop(N, Needles, Haystack0,RR) -> + DummySize=N*8, + Haystack1 = <<0:DummySize,Haystack0/binary>>, + RR1=[{X+N,Y} || {X,Y} <- RR], + true = do_matches_comp2(Needles,Haystack1,RR1), + Haystack2 = <<Haystack0/binary,Haystack1/binary>>, + RR2 = RR ++ [{X2+N+byte_size(Haystack0),Y2} || {X2,Y2} <- RR], + true = do_matches_comp2(Needles,Haystack2,RR2), + do_matches_comp_loop(N-1, Needles, Haystack0,RR). + + +do_matches_comp2(N,H,A) -> + C = ?MASK_ERROR(binary:matches(H,N)), + case (A =:= C) of + true -> + true; + _ -> + io:format("Failed to match ~p (needle) against ~s (haystack)~n", + [N,H]), + io:format("A:~p,~n,C:~p.~n", + [A,C]), + exit(mismatch) + end. +do_matches_comp(N,H) -> + A = ?MASK_ERROR(binref:matches(H,N)), + B = ?MASK_ERROR(binref:matches(H,binref:compile_pattern(N))), + C = ?MASK_ERROR(binary:matches(H,N)), + D = ?MASK_ERROR(binary:matches(make_unaligned(H), + binary:compile_pattern([make_unaligned2(X) || X <- N]))), + if + A =/= nomatch -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case {(A =:= B), (B =:= C),(C =:= D)} of + {true,true,true} -> + true; + _ -> + io:format("Failed to match ~p (needle) against ~s (haystack)~n", + [N,H]), + io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n", + [A,B,C,D]), + exit(mismatch) + end. + +do_random_match_comp(0,_,_) -> + ok; +do_random_match_comp(N,NeedleRange,HaystackRange) -> + Needle = random_string(NeedleRange), + Haystack = random_string(HaystackRange), + true = do_match_comp(Needle,Haystack), + do_random_match_comp(N-1,NeedleRange,HaystackRange). + +do_random_match_comp2(0,_,_) -> + ok; +do_random_match_comp2(N,NeedleRange,HaystackRange) -> + Haystack = random_string(HaystackRange), + Needle = random_substring(NeedleRange,Haystack), + true = do_match_comp(Needle,Haystack), + do_random_match_comp2(N-1,NeedleRange,HaystackRange). + +do_random_match_comp3(0,_,_) -> + ok; +do_random_match_comp3(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_substring(NeedleRange,Haystack) || + _ <- lists:duplicate(NumNeedles,a)], + true = do_match_comp3(Needles,Haystack), + do_random_match_comp3(N-1,NeedleRange,HaystackRange). + +do_random_match_comp4(0,_,_) -> + ok; +do_random_match_comp4(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_string(NeedleRange) || + _ <- lists:duplicate(NumNeedles,a)], + true = do_match_comp3(Needles,Haystack), + do_random_match_comp4(N-1,NeedleRange,HaystackRange). + +do_match_comp(N,H) -> + A = ?MASK_ERROR(binref:match(H,N)), + B = ?MASK_ERROR(binref:match(H,binref:compile_pattern([N]))), + C = ?MASK_ERROR(binary:match(make_unaligned(H),N)), + D = ?MASK_ERROR(binary:match(H,binary:compile_pattern([N]))), + E = ?MASK_ERROR(binary:match(H,binary:compile_pattern(make_unaligned(N)))), + if + A =/= nomatch -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case {(A =:= B), (B =:= C),(C =:= D),(D =:= E)} of + {true,true,true,true} -> + true; + _ -> + io:format("Failed to match ~s (needle) against ~s (haystack)~n", + [N,H]), + io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p,E:~p.~n", + [A,B,C,D,E]), + exit(mismatch) + end. + +do_match_comp3(N,H) -> + A = ?MASK_ERROR(binref:match(H,N)), + B = ?MASK_ERROR(binref:match(H,binref:compile_pattern(N))), + C = ?MASK_ERROR(binary:match(H,N)), + D = ?MASK_ERROR(binary:match(H,binary:compile_pattern(N))), + if + A =/= nomatch -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case {(A =:= B), (B =:= C),(C =:= D)} of + {true,true,true} -> + true; + _ -> + io:format("Failed to match ~s (needle) against ~s (haystack)~n", + [N,H]), + io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n", + [A,B,C,D]), + exit(mismatch) + end. + +do_random_split_comp(0,_,_) -> + ok; +do_random_split_comp(N,NeedleRange,HaystackRange) -> + Haystack = random_string(HaystackRange), + Needle = random_substring(NeedleRange,Haystack), + true = do_split_comp(Needle,Haystack,[]), + true = do_split_comp(Needle,Haystack,[global]), + true = do_split_comp(Needle,Haystack,[global,trim]), + do_random_split_comp(N-1,NeedleRange,HaystackRange). +do_random_split_comp2(0,_,_) -> + ok; +do_random_split_comp2(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_substring(NeedleRange,Haystack) || + _ <- lists:duplicate(NumNeedles,a)], + true = do_split_comp(Needles,Haystack,[]), + true = do_split_comp(Needles,Haystack,[global]), + do_random_split_comp2(N-1,NeedleRange,HaystackRange). + +do_split_comp(N,H,Opts) -> + A = ?MASK_ERROR(binref:split(H,N,Opts)), + D = ?MASK_ERROR(binary:split(H,binary:compile_pattern(N),Opts)), + if + (A =/= [N]) and is_list(A) -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case (A =:= D) of + true -> + true; + _ -> + io:format("Failed to split ~n~p ~n(haystack) with ~n~p ~n(needle) " + "~nand options ~p~n", + [H,N,Opts]), + io:format("A:~p,D:~p.~n", + [A,D]), + exit(mismatch) + end. + +do_random_replace_comp(0,_,_) -> + ok; +do_random_replace_comp(N,NeedleRange,HaystackRange) -> + Haystack = random_string(HaystackRange), + Needle = random_substring(NeedleRange,Haystack), + Repl = random_string(NeedleRange), + Insertat = random_length(NeedleRange), %Sometimes larger than Repl + true = do_replace_comp(Needle,Haystack,Repl,[]), + true = do_replace_comp(Needle,Haystack,Repl,[global]), + true = do_replace_comp(Needle,Haystack,Repl, + [global,{insert_replaced,Insertat}]), + do_random_replace_comp(N-1,NeedleRange,HaystackRange). +do_random_replace_comp2(0,_,_) -> + ok; +do_random_replace_comp2(N,NeedleRange,HaystackRange) -> + NumNeedles = element(2,HaystackRange) div element(2,NeedleRange), + Haystack = random_string(HaystackRange), + Needles = [random_substring(NeedleRange,Haystack) || + _ <- lists:duplicate(NumNeedles,a)], + Repl = random_string(NeedleRange), + Insertat = random_length(NeedleRange), %Sometimes larger than Repl + true = do_replace_comp(Needles,Haystack,Repl,[]), + true = do_replace_comp(Needles,Haystack,Repl,[global]), + true = do_replace_comp(Needles,Haystack,Repl, + [global,{insert_replaced,Insertat}]), + do_random_replace_comp2(N-1,NeedleRange,HaystackRange). + +do_replace_comp(N,H,R,Opts) -> + A = ?MASK_ERROR(binref:replace(H,N,R,Opts)), + D = ?MASK_ERROR(binary:replace(H,binary:compile_pattern(N),R,Opts)), + if + (A =/= N) and is_binary(A) -> + put(success_counter,get(success_counter)+1); + true -> + ok + end, + case (A =:= D) of + true -> + true; + _ -> + io:format("Failed to replace ~s (haystack) by ~s (needle) " + "inserting ~s (replacement) and options ~p~n", + [H,N,R,Opts]), + io:format("A:~p,D:~p.~n", + [A,D]), + exit(mismatch) + end. + +one_random_number(N) -> + M = ((N - 1) rem 10) + 1, + element(M,{$0,$1,$2,$3,$4,$5,$6,$7,$8,$9}). + +one_random(N) -> + M = ((N - 1) rem 68) + 1, + element(M,{$a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$t, + $u,$v,$w,$x,$y,$z,$�,$�,$�,$A,$B,$C,$D,$E,$F,$G,$H, + $I,$J,$K,$L,$M,$N,$O,$P,$Q,$R,$S,$T,$U,$V,$W,$X,$Y,$Z,$�, + $�,$�,$0,$1,$2,$3,$4,$5,$6,$7,$8,$9}). + +random_number({Min,Max}) -> % Min and Max are *length* of number in + % decimal positions + X = random:uniform(Max - Min + 1) + Min - 1, + list_to_integer([one_random_number(random:uniform(10)) || _ <- lists:seq(1,X)]). + + +random_length({Min,Max}) -> + random:uniform(Max - Min + 1) + Min - 1. +random_string({Min,Max}) -> + X = random:uniform(Max - Min + 1) + Min - 1, + list_to_binary([one_random(random:uniform(68)) || _ <- lists:seq(1,X)]). +random_substring({Min,Max},Hay) -> + X = random:uniform(Max - Min + 1) + Min - 1, + Y = byte_size(Hay), + Z = if + X > Y -> Y; + true -> X + end, + PMax = Y - Z, + Pos = random:uniform(PMax + 1) - 1, + <<_:Pos/binary,Res:Z/binary,_/binary>> = Hay, + Res. + +mask_error({'EXIT',{Err,_}}) -> + Err; +mask_error(Else) -> + Else. + +make_unaligned(Bin0) when is_binary(Bin0) -> + Bin1 = <<0:3,Bin0/binary,31:5>>, + Sz = byte_size(Bin0), + <<0:3,Bin:Sz/binary,31:5>> = id(Bin1), + Bin. +make_unaligned2(Bin0) when is_binary(Bin0) -> + Bin1 = <<31:5,Bin0/binary,0:3>>, + Sz = byte_size(Bin0), + <<31:5,Bin:Sz/binary,0:3>> = id(Bin1), + Bin. + +id(I) -> I. diff --git a/lib/stdlib/test/binref.erl b/lib/stdlib/test/binref.erl new file mode 100644 index 0000000000..6d96736ef3 --- /dev/null +++ b/lib/stdlib/test/binref.erl @@ -0,0 +1,588 @@ +-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, + longest_common_prefix/1,longest_common_suffix/1,bin_to_list/1, + bin_to_list/2,bin_to_list/3,list_to_bin/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,nomatch) of + nomatch -> + 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); + _ -> + nomatch + 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,nomatch) of + nomatch -> + 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 -> + nomatch; +mloop(Haystack,Needles,N,M) -> + case mloop2(Haystack,Needles,N,nomatch) of + nomatch -> + % 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,nomatch) of + nomatch -> + % 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 + nomatch -> + {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,Needles0,Options) -> + try + Needles = if + is_list(Needles0) -> + Needles0; + is_binary(Needles0) -> + [Needles0]; + true -> + exit(badtype) + end, + {Part,Global,Trim} = get_opts_split(Options,{nomatch,false,false}), + {Start,End,NewStack} = + case Part of + nomatch -> + {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 + nomatch -> + []; + 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,Needles0,Replacement,Options) -> + try + Needles = if + is_list(Needles0) -> + Needles0; + is_binary(Needles0) -> + [Needles0]; + true -> + exit(badtype) + end, + true = is_binary(Replacement), % Make badarg instead of function clause + {Part,Global,Insert} = get_opts_replace(Options,{nomatch,false,[]}), + {Start,End,NewStack} = + case Part of + nomatch -> + {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 + nomatch -> + []; + 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. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% bin_to_list +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +bin_to_list(Subject) -> + try + binary_to_list(Subject) + catch + _:_ -> + erlang:error(badarg) + end. + +bin_to_list(Subject,T) -> + try + {A0,B0} = T, + {A,B} = if + B0 < 0 -> + {A0+B0,-B0}; + true -> + {A0,B0} + end, + binary_to_list(Subject,A+1,A+B) + catch + _:_ -> + erlang:error(badarg) + end. + +bin_to_list(Subject,A,B) -> + try + bin_to_list(Subject,{A,B}) + catch + _:_ -> + erlang:error(badarg) + end. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% list_to_bin +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +list_to_bin(List) -> + try + erlang:list_to_binary(List) + catch + _:_ -> + erlang:error(badarg) + end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% longest_common_prefix +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +longest_common_prefix(LB) -> + try + true = is_list(LB) and (length(LB) > 0), % Make badarg instead of function clause + do_longest_common_prefix(LB,0) + catch + _:_ -> + erlang:error(badarg) + end. + +do_longest_common_prefix(LB,X) -> + case do_lcp(LB,X,no) of + true -> + do_longest_common_prefix(LB,X+1); + false -> + X + end. +do_lcp([],_,_) -> + true; +do_lcp([Bin|_],X,_) when byte_size(Bin) =< X -> + false; +do_lcp([Bin|T],X,no) -> + Ch = at(Bin,X), + do_lcp(T,X,Ch); +do_lcp([Bin|T],X,Ch) -> + Ch2 = at(Bin,X), + if + Ch =:= Ch2 -> + do_lcp(T,X,Ch); + true -> + false + end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% longest_common_suffix +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +longest_common_suffix(LB) -> + try + true = is_list(LB) and (length(LB) > 0), % Make badarg instead of function clause + do_longest_common_suffix(LB,0) + catch + _:_ -> + erlang:error(badarg) + end. + +do_longest_common_suffix(LB,X) -> + case do_lcs(LB,X,no) of + true -> + do_longest_common_suffix(LB,X+1); + false -> + X + end. +do_lcs([],_,_) -> + true; +do_lcs([Bin|_],X,_) when byte_size(Bin) =< X -> + false; +do_lcs([Bin|T],X,no) -> + Ch = at(Bin,byte_size(Bin) - 1 - X), + do_lcs(T,X,Ch); +do_lcs([Bin|T],X,Ch) -> + Ch2 = at(Bin,byte_size(Bin) - 1 - X), + if + Ch =:= Ch2 -> + do_lcs(T,X,Ch); + true -> + false + 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), + 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). |