Le lundi 24 octobre 2016 à 21:44 -0700, Chris Stook a écrit :
> I'm trying to parse a text file which contains some floating point
> numbers. The number 2.5 is represented by the string
> "\x002\0.\x005\0". Parse will not convert this to a Float64. Print
> works (prints "2.5") in Atom and Jupyter, but not in the REPL.
>
> _
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> |__/ | x86_64-w64-mingw32
>
> julia> print("\x002\0.\x005\0")
> �2�.�5�
> julia> parse(Float64,"\x002\0.\x005\0")
> ERROR: ArgumentError: invalid number format "\x002\0.\x005\0" for
> Float64
> in parse(::Type{Float64}, ::String) at .\parse.jl:167
>
> julia>
>
> I am not familiar with Unicode. Is the Unicode valid? How should I
> convert this to a Float? I do not have control over the input file.
"Unicode" doesn't refer to a specific encoding. Julia expects UTF-8,
but this appears to be UTF16-BE (which is often abusively called
Unicode in the Windows world).
You can use my StringEncodings package to decode the file to a Julia
string (see the README):
julia> using StringEncodings
julia> parse(Float64, decode("\x002\0.\x005\0".data, "UTF-16BE"))
2.5
Regards
