The whole premise of an alias is that it's a different name for the same thing.
> On Aug 14, 2015, at 8:16 PM, Jeffrey Sarnoff <jeffrey.sarn...@gmail.com>
> wrote:
>
> Ben, much as I would like there to be a second kind of typealias, typealiased
> -- that let us work with the renanamings wiithout risk to the objects of the
> type originally aliased -- this is not on the radar now. It is hard to peel
> off enough to form the CIGAR when the role of typealias is to preclude
> introducing distictiction outside of recognizing a the alias as if it were a
> nickname.
>
>
>
>> On Friday, August 14, 2015 at 7:26:07 PM UTC-4, Ben Ward wrote:
>> Would that work? The variable to be printed isn't fed in as the second
>> option?
>>
>>> On Wednesday, August 12, 2015 at 1:34:16 AM UTC+1, colint...@gmail.com
>>> wrote:
>>> Does the following work?
>>>
>>> function Base.show(io::IO, ::Type{CIGARString})
>>> #your code here
>>> end
>>>
>>>
>>>
>>>> On Tuesday, 11 August 2015 03:07:15 UTC+10, Ben Ward wrote:
>>>> Hi, I have implemented a basic immutable type with a type alias for a
>>>> vector of said type:
>>>>
>>>> immutable CIGAR
>>>> OP::Operation
>>>> Size::Int
>>>> end
>>>>
>>>>
>>>> function CIGAR(op::Char, size::Int)
>>>> return CIGAR(Operation(op), size)
>>>> end
>>>>
>>>>
>>>> function convert(::Type{String}, cigar::CIGAR)
>>>> return "$(cigar.Size)$(Char(cigar.OP))"
>>>> end
>>>>
>>>>
>>>> function show(io::IO, cigar::CIGAR)
>>>> write(io, convert(String, cigar))
>>>> end
>>>>
>>>>
>>>> typealias CIGARString Vector{CIGAR}
>>>>
>>>>
>>>> function convert(::Type{CIGARString}, str::String)
>>>> matches = matchall(r"(\d+)(\w)", str)
>>>> cigarString = Vector{CIGAR}(length(matches))
>>>> @inbounds for i in 1:length(matches)
>>>> m = matches[i]
>>>> cigarString[i] = CIGAR(m[end], parse(Int, m[1:end-1]))
>>>> end
>>>> return cigarString
>>>> end
>>>>
>>>>
>>>> macro cigar_str(str)
>>>> return CIGARString(str)
>>>> end
>>>>
>>>> I also want to define a show method for the alias CIGARString, so as it is
>>>> converted to a string that can be used with a show method:
>>>>
>>>> function convert(::Type{String}, cigarString::CIGARString)
>>>> outString = ""
>>>> for cigar in cigarString
>>>> outString *= String(cigar)
>>>> end
>>>> return outString
>>>> end
>>>>
>>>>
>>>> function show(io::IO, cigarstr::CIGARString)
>>>> write(io, convert(String, cigarstr))
>>>> end
>>>>
>>>> However the output a see on the REPL is:
>>>>
>>>> 3-element Array{Bio.Align.CIGAR,1}:
>>>>
>>>>
>>>> 5M
>>>>
>>>>
>>>> 5N
>>>>
>>>>
>>>> 5M
>>>>
>>>>
>>>> So, rather than the show method for CIGARString being called, the show
>>>> method for CIGAR is being called repeatedly for every element in the
>>>> CIGARString vector. How do I get Julia to use the show method I want for
>>>> CIGARString?
>>>>
>>>> Thanks.
