Turns an instance of CsvInput[S] into one of CsvInput[T].
Turns an instance of CsvInput[S] into one of CsvInput[T].
This allows developers to adapt existing instances of CsvInput rather than write one from scratch.
One could, for example, write CsvInput[URL] by basing it on CsvInput[InputStream]:
val urlInput: CsvInput[URL] = CsvInput[InputStream].contramap((url: URL) => url.openStream())
Turns the specified S into an iterator on DecodeResult[A].
Turns the specified S into an iterator on DecodeResult[A].
This method is "safe", in that it does not throw exceptions when errors are encountered. This comes with the small cost of having each row wrapped in a DecodeResult that then need to be unpacked. See unsafeReader for an alternative.
This method is also mapped to the asCsvRows one that enrich all types that have a valid CsvInput instance
in scope. For example:
implicit val strInput: CsvInput[String] = ??? "a,b,c".asCsvRows[List[Char]](',', false)
type to parse each row as.
Turns the specified S into an iterator on A.
Turns the specified S into an iterator on A.
This is the "unsafe" version of reader: it will throw as soon as an error is encountered.
type to parse each row as.
Turns instances of
Sinto valid sources of CSV data.Any type
Sthat has a implicit instance of CsvInput in scope will be enriched by theasCsvReaderandasUnsafeCsvReadermethods (which map to reader and unsafeReader respectively).See the companion object for default implementations and construction methods.