On Fri, Nov 25, 2016 at 09:38:42PM +0100, Sven Van Caekenberghe wrote:
> Peter,
> 
> > On 25 Nov 2016, at 19:35, Peter Uhnak <i.uh...@gmail.com> wrote:
> > 
> > Hi,
> > 
> > is it/would it be possible to modify NeoCSVWriter to add quotes only where 
> > necessary? So only if the written value contains the separator (is there 
> > any other case that would require the quotes?).
> > 
> > Thanks,
> > Peter
> 
> Why exactly do you want this ?

My use case is that sometimes I need/want to view the file with my eyes, and 
when in 95% of the file the content is single (or couple words), then quotes 
add a lot of clutter. So if in 5% (or 1%) of the file there are quotes and the 
reset aren't, then I would be happy. :)

But it's not such a big problem, I've added it for myself, at least until we 
will have a usable way to edit CSV files in Pharo... do we really not have any 
table editor? :/

Peter

> 
> CSV is a pretty simple format, having a field quoted in one line and not in 
> another already sounds like being a bit too clever, though it does seem to be 
> allowed.
> 
> The idea of having different field writers was to choose the most efficient 
> one for your data (types). You can configure a writer per field (column). If 
> you have numbers, raw gives you the fastest performance.
> 
> Doing optional quoting would always require more than one pass, if not many 
> more, over the string, possibly generating more garbage. (Like in your 
> example implementation).
> 
> There are 3 reasons to do quoting: embedded separator, embedded newline, 
> embedded quote (you forgot the newline case).
> 
> All that being said, maybe an #optionalQuoted field writer could be a 
> reasonable configureable option, but I would not make it the default. 
> 
> Again, why do you want this ?
> 
> Sven
> 
> 

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