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Change the default write for missing values to empty string #74

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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ save(Stream(format"CSV", io), it)

The ``save`` function takes a number of arguments:
````julia
save(f::FileIO.File{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="NA", header=true)
save(f::FileIO.File{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="", header=true)
````

#### Arguments
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16 changes: 8 additions & 8 deletions src/csv_writer.jl
Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ end
end
end

function _save(io, data; delim=',', quotechar='"', escapechar='"', nastring="NA", header=true)
function _save(io, data; delim=',', quotechar='"', escapechar='"', nastring="", header=true)
isiterabletable(data) || error("Can't write this data to a CSV file.")

it = getiterator(data)
Expand All @@ -62,7 +62,7 @@ function _save(io, data; delim=',', quotechar='"', escapechar='"', nastring="NA"
_writecsv(io, it, eltype(it), delim, quotechar, escapechar, nastring)
end

function _save(filename::AbstractString, data; delim=',', quotechar='"', escapechar='"', nastring="NA", header=true)
function _save(filename::AbstractString, data; delim=',', quotechar='"', escapechar='"', nastring="", header=true)
isiterabletable(data) || error("Can't write this data to a CSV file.")

ext = last(split(filename, '.'))
Expand All @@ -80,19 +80,19 @@ end



function fileio_save(f::FileIO.File{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="NA", header=true)
function fileio_save(f::FileIO.File{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="", header=true)
return _save(f.filename, data, delim=delim, quotechar=quotechar, escapechar=escapechar, nastring=nastring, header=header)
end

function fileio_save(f::FileIO.File{FileIO.format"TSV"}, data; delim='\t', quotechar='"', escapechar='"', nastring="NA", header=true)
function fileio_save(f::FileIO.File{FileIO.format"TSV"}, data; delim='\t', quotechar='"', escapechar='"', nastring="", header=true)
return _save(f.filename, data, delim=delim, quotechar=quotechar, escapechar=escapechar, nastring=nastring, header=header)
end

function fileio_save(s::FileIO.Stream{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="NA", header=true)
function fileio_save(s::FileIO.Stream{FileIO.format"CSV"}, data; delim=',', quotechar='"', escapechar='"', nastring="", header=true)
return _save(s.io, data, delim=delim, quotechar=quotechar, escapechar=escapechar, nastring=nastring, header=header)
end

function fileio_save(s::FileIO.Stream{FileIO.format"TSV"}, data; delim='\t', quotechar='"', escapechar='"', nastring="NA", header=true)
function fileio_save(s::FileIO.Stream{FileIO.format"TSV"}, data; delim='\t', quotechar='"', escapechar='"', nastring="", header=true)
return _save(s.io, data, delim=delim, quotechar=quotechar, escapechar=escapechar, nastring=nastring, header=header)
end

Expand All @@ -113,7 +113,7 @@ mutable struct CSVFileSaveStream{T}
header::Bool
end

function fileio_savestreaming(f::FileIO.File{T}, data=nothing; delim=_delim(T), quotechar='"', escapechar='"', nastring="NA",
function fileio_savestreaming(f::FileIO.File{T}, data=nothing; delim=_delim(T), quotechar='"', escapechar='"', nastring="",
header=true) where T <: CSV_or_TSV
io = open(f.filename, "w")

Expand All @@ -124,7 +124,7 @@ function fileio_savestreaming(f::FileIO.File{T}, data=nothing; delim=_delim(T),
return CSVFileSaveStream(io, data!==nothing, delim, quotechar, escapechar, nastring, header)
end

function fileio_savestreaming(s::FileIO.Stream{T}, data=nothing; delim=_delim(T), quotechar='"', escapechar='"', nastring="NA",
function fileio_savestreaming(s::FileIO.Stream{T}, data=nothing; delim=_delim(T), quotechar='"', escapechar='"', nastring="",
header=false) where T <: CSV_or_TSV

if data!==nothing
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