CSV crash: "Quote located in unquoted token"

[rikki cattermole]

On 13/10/2017 11:05 AM, Dmitry wrote:
> On Friday, 13 October 2017 at 09:00:52 UTC, rikki cattermole wrote:
>> Write a purpose built csv parser using ranges. It should take only 
>> about half an hour.
>> I know, I know not very helpful. But a custom built parser will work 
>> better for you I think.
> Yep, I can parse it myself, but I want to try to avoid this (reduce 
> amount of source code).
> 
> Maybe there is posiible something like this:
> foreach(record; file.byLine.fixQuotes.joiner("\n").csvReader!...
> ?
> 
> What types should get/return the function (fixQuotes) if I want change 
> the line after .byLine?
> When compiler says:
> "candidates are:
> src\phobos\std\array.d(2534,5): std.array.replaceFirst(E, R1, R2)(E[] 
> subject, R1 from, R2 to) if (isDynamicArray!(E[]) && isForwardRange!R1 
> && is(typeof(appender!(E[])().put(from[0..1]))) && isForwardRange!R2 && 
> is(typeof(appender!(E[])().put(to[0..1]))))"
> 
> it's scares me and I hiding under the table.
> 
> I thought about something like
> auto fixQuotes(string text)
> {
>      if (text.canFind("\"\""))
>      {
>          // some magic
>      }
> 
>      return text;
> }
> 
> but obviously, it won't compiled

Something along the lines of:

.byLine.map!(a => a.fixQuotes).joiner("\n").csvReader!...

Either way, you're using ranges!
Its even the same amount of code, if not less.