gsv
This is a simple csv parser and writer for Gleam. It will get more performant/battle tested in the future, but if you’re looking for that now, I’d recommend doing ffi to an existing parser in your target runtime.
Example
import gsv.{Unix, Windows}
pub fn main() {
let csv_str = "Hello, World\nGoodbye, Mars"
// Parse a CSV string to a List(List(String))
let assert Ok(records) = gsv.to_lists(csv_str)
// Write a List(List(String)) to a CSV string
let csv_str = records
|> gsv.from_lists(separator: ",", line_ending: Windows)
// Parse a CSV string with headers to a List(Dict(String, String))
let assert Ok(records) = gsv.to_dicts(csv_str)
// => [ dict.from_list([ #("Hello", "Goodbye"), #("World", "Mars") ]) ]
// Write a List(Dict(String, String)) to a CSV string, treating the keys as the header row
let csv_str = records
|> gsv.from_dicts(separator: ",", line_ending: Windows)
}
Installation
If available on Hex this package can be added to your Gleam project:
gleam add gsv
and its documentation can be found at https://hexdocs.pm/gsv.