You can see an example in biofasta: https://github.com/BioHaskell/biofasta/blob/master/src/Bio/Sequence/Fasta.hs
on line 31: import Bio.Core.Sequence then lines 37-44: data Sequence = Seq SeqLabel SeqData (Maybe QualData) deriving (Show, Eq) instance BioSeq Sequence where seqid (Seq lab seq mqual) = SeqLabel {unSL = B.takeWhile (/= ' ') $ unSL lab} seqheader (Seq lab seq mqual) = lab seqdata (Seq lab seq mqual) = seq seqlength (Seq lab seq mqual) = Offset {unOff = B.length $ unSD seq} The BioSeq typeclass that is used above comes from Bio.Core.Sequence: http://malde.org/~ketil/biohaskell/biocore/src/Bio/Core/Sequence.hs -- | The 'BioSeq' class models sequence data, and any data object that -- represents a biological sequence should implement it. class BioSeq s where seqid :: s -> SeqLabel -- ^ Sequence identifier (typically first word of the header) seqid = seqlabel seqheader :: s -> SeqLabel -- ^ Sequence header (may contain whitespace), by convention the -- first word matches the 'seqid' seqheader = seqlabel seqdata :: s -> SeqData -- ^ Sequence data seqlength :: s -> Offset -- ^ Sequence length On Sat, Mar 29, 2014 at 3:07 AM, Vasili I. Galchin <vigalc...@gmail.com>wrote: > Ketil, > > Maybe you misunderstood my question. Where is the new biocore used?? > Example please. > > Vasili > > > On Sat, Mar 29, 2014 at 4:31 AM, Ketil Malde <ke...@malde.org> wrote: > >> >> Vasili I. Galchin <vigalc...@gmail.com> writes: >> >> > I was under the impression that biocore replaces former >> functionality >> > like Bio.Sequence; however, just by random reading in >> > http://hackage.haskell.org/package/bio-0.5.3/src/ .. I don't an import >> of >> > Bio.Core. Why?? I am trying to get TwoBit.hs in compliance with module >> > Bio.Core. >> >> The idea is that biocore contains common definitions, but little >> specific implementation. Which comes as separate libraries, so biofasta, >> biofastq, etc are implementations for those formats. >> >> This way, TwoBit could have its own internal representation (possibly a >> two-bit array), accessible through the "core" typeclasses. >> >> I started to work on making biolib (which is a monolithic library >> containing all kinds of functionality) depend on biocore, but stumbled >> upon some difficulties, and forgot about it. >> >> -k >> -- >> If I haven't seen further, it is by standing in the footprints of giants >> > >