Ruby CSV membaca bidang multiline

Masalah Anda bukan multiline tetapi CSV yang salah format.

Ganti \" dan akhiri spasi setelah akhir baris seperti ini:

require 'csv' 

ml = %q{"id","name","address","email","potato" 
1,"Bob","---  
- 101 Cottage row 
- Lovely Village 
- \"\" 
","example@sqldat.com","omnomnom" 
2,"Charlie","---  
- 102 Flame Street 
- \"\" 
- \"\" 
","example@sqldat.com","andcheese" 
4,"Doug","---  
- 103 Dark Cave 
- Next to some geo dude 
- So many bats 
","example@sqldat.com","usemeltattack"}

ml.gsub!(/\" \n/,"\"\n").gsub!(/\\\"/,"__")

CSV.parse(ml, {:headers=>true}) do |row|
  puts row
end

Ini memberikan:

"id","name","address","email","potato"
1,"Bob","---  
- 101 Cottage row 
- Lovely Village 
- ____
","example@sqldat.com","omnomnom"
etc

Jika Anda tidak memiliki kendali atas program yang mengirimkan CSV, Anda harus membuka file, membaca konten, melakukan penggantian, lalu mengurai CSV. Saya menggunakan __ di sini tetapi Anda dapat menggunakan karakter lain yang tidak bertentangan.