+1 (imo) It would be a real contribution to Julia's way of just working
well with this as with that
for one with the requisite skill to make quick work of
implementing
parse(Complex, complex) and parse(Rational, rational) into
v0.6
On Friday, October 28, 2016 at 6:25:47 PM UTC-4, Jérémy Béjanin wrote:
>
> How easy would it be to make one assuming the standard julia notation
> 3+4im?
>
> On Friday, October 28, 2016 at 3:58:08 PM UTC-4, Yichao Yu wrote:
>>
>> On Fri, Oct 28, 2016 at 3:53 PM, Jérémy Béjanin
>> <jeremy....@gmail.com> wrote:
>> > I've noticed that parsing a string representing a real number yields a
>> real
>> > number, but parsing a string representing a complex number yields an
>> > expression that must subsequently be evaluated. Is there a reason for
>> that
>> > behaviour? I'd like to avoid that behaviour considering I am reading
>> > user-inputted data.
>> >
>> > ```julia
>> > julia> typeof(parse("1.60254+3im"))
>> > Expr
>> >
>> > julia> typeof(parse("1.60254"))
>> > Float64
>> > ```
>>
>> Do no use `parse(::String)` to parse numbers. It is for parsing
>> generic julia code. Use `parse(Float64, str)` to parse a floating
>> point number.
>>
>> I don't think we have a parsing function for complex number likely
>> because there isn't a universal standard.
>>
>
