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Erlangでフィアルをバイナリコードで開く
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-module(open_binary_file). | |
-compile(export_all). | |
% read_file(Filename) -> {ok, Binary} | {error, Reason} | |
% 4> c(open_binary_file). | |
% {ok,open_binary_file} | |
% 5> open_binary_file:read_file("prime.erl"). | |
% [<<"#!/usr/bin/env escript">>,<<>>,<<"main(_) ->">>, | |
% <<" Res = prime_list(1000),">>, | |
% <<" io:format(\"~p~n\", [length(Res)]).">>,<<>>,<<"prime_list(Num)->">>, | |
% <<" prime_list(Num, 3, [2]).">>,<<>>, | |
% <<"prime_list(Num, PP, PS) when PP >= Num ->">>,<<" lists:reverse(PS);">>, | |
% <<"prime_list(Num, PP, PS) when PP < Num ->">>, | |
% <<" IsPrime = lists:any(fun(X) -> PP rem X =:= 0 end, PS),">>, | |
% <<" case IsPrime of">>,<<" true -> prime_list(Num, PP+2, PS);">>, | |
% <<" false -> prime_list(Num, PP+2, [PP|PS])">>,<<" end.">>, | |
% <<" ">>,<<>>,<<>>,<<>>,<<>>,<<>>] | |
% ok | |
% 6> | |
read_file(Filename) -> | |
{ok, Data}= file:read_file(Filename), | |
L = binary:split(Data, [<<"\n">>], [global]), | |
Lc = [Item || Item <- L], | |
io:format("~p~n", [Lc]). |
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