Re: read numbers
Roger Lipscombe <[email protected]>
| Newsgroups | gmane.comp.lang.erlang.general |
|---|---|
| Message-ID | <CAJgnQd8KOgQzUWohmTZrdk5zPrWicCHOoHTfD3-ShetgmSeWkw@mail.gmail.com> |
On Thu, 9 Dec 2021 at 13:29, Java House <[email protected]> wrote: > Thank you Roger for the answer > I thought about it but since I have to parse all digits for every row that would mean a lot of entries as I have to create all possible combinations of 0/1 for every position of the row. parse(Data) -> parse(Data, [], []). parse(<<"0", Rest/binary>>, Line, Lines) -> parse(Rest, [false | Line], Lines); parse(<<"1", Rest/binary>>, Line, Lines) -> parse(Rest, [true | Line], Lines); parse(<<$\n, Rest/binary>>, Line, Lines) -> parse(Rest, [], [lists:reverse(Line) | Lines]); parse(<<>>, [], Lines) -> lists:reverse(Lines); parse(<<>>, Line, Lines) -> lists:reverse([lists:reverse(Line) | Lines]). ...results in... [[true,true,true,false,true,true,false,false,true,false,true,false], [false,true,false,false,true,true,true,false,true,true,true,false], [true,true,false,false,false,true,false,false,true,false,true,false], [false,false,true,true,false,true,false,true,true,true,false,true], [true,true,false,true,false,false,false,false,false,false,true,true], [false,true,false,true,true,false,true,true,false,false,true,false]]