Specifically,
- Conceptually, a string is a *partial function* from indices to characters: for some index values, no character value is returned, and instead an exception is thrown. This allows for efficient indexing into strings by the byte index of an encoded representation rather than by a character index, which cannot be implemented both efficiently and simply for variable-width encodings of Unicode strings. On Thursday, October 20, 2016 at 7:43:22 PM UTC+2, Kristoffer Carlsson wrote: > > Please read http://docs.julialang.org/en/release-0.5/manual/strings/ > > On Thursday, October 20, 2016 at 7:34:03 PM UTC+2, program...@gmail.com > wrote: >> >> What wrong ? >> julia> o=open("string.txt","w") >> IOStream(<file string.txt>) >> >> julia> write(o,b) >> 12 >> >> julia> close(o) >> >> julia> o=open("string.txt") >> IOStream(<file string.txt>) >> >> julia> temp=readline() >> >> "\r\n" >> >> julia> temp=readline(o) >> "sa sdś aa,1" >> >> julia> >> >> julia> temp[6] >> 'ś' >> >> julia> temp[7] >> ERROR: UnicodeError: invalid character index >> in slow_utf8_next(::Array{UInt8,1}, ::UInt8, ::Int64) at >> .\strings\string.jl:67 >> in next at .\strings\string.jl:92 [inlined] >> in getindex(::String, ::Int64) at .\strings\basic.jl:70 >> >> julia> temp >> "sa sdś aa,1" >> >> julia> eltype(temp) >> Char >> >> julia> typeof(temp) >> String >> >> julia> temp[3] >> ' ' >> >> Paul >> >>
