CSV parser fails with mixed quoting and non-standard row_sep

opts = {row_sep: "|\n", col_sep: ","}
CSV.parse(CSV.generate(opts) { |csv|
  csv << ["yes, it's true"];
  csv << [ "CSV is broken"];
  csv << ["uhoh!"]; }, opts)

In the example above, the parser will raise a CSV::MalformedCSVError (Unquoted fields do not allow new line <"\n"> in line 2.) error.

It will succeed if any of the following are done:

1. pass force_quotes: true to generate
2. add a comma in each row
3. remove the comma from the first row
4. use row_sep: "\n"

Therefore, the problem seems to be that a non-standard row_sep + lines with a field being quoted in one row and unquoted in the next.

Comienza reproduciendo el ejemplo con CSV.generate y CSV.parse usando row_sep: "|\n", y luego compara las filas entrecomilladas y no entrecomilladas con los casos que tienen éxito. Traza cómo el parser gestiona los separadores de filas y el entrecomillado de campos; la tarea está terminada cuando la entrada con entrecomillado mixto se analiza sin CSV::MalformedCSVError, mientras las alternativas existentes siguen siendo válidas.