trim3

gleam add trim3

import gleam/string
import gleam/list
import trim3

pub fn main() -> Nil {
  let strip_chars =
    string.to_graphemes(" \t\n") |> list.map(string.to_utf_codepoints)

  // let trim = trim3.trim3_start(_, strip_chars)
  // let trim = trim3.trim3_end(_, strip_chars)
  let trim = trim3.trim3(_, strip_chars)
  assert trim("  Silly\r\r\r   ") == "Silly\r\r\r"
}

Further documentation can be found at https://hexdocs.pm/trim3.

Why?

I needed to trim many lines which only includes space, tab and line-feed. Gleam string.trim (Erlang trim/1, trim/2) looks for 11 different characters and the crlf pair. Cut time spent trimming lines in half. Not that I will ever ever gain that back from doing this. Sunken cost!

And it should probably be a PR instead of a package. But hacks are afoot.