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adglent.gleam
56 lines (46 loc) · 1.08 KB
/
adglent.gleam
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import simplifile.{type FileError}
import gleam/list
import gleam/string
pub type Example(a) {
Example(input: String, answer: a)
}
pub fn inspect(value: a) -> String {
let inspected_value = string.inspect(value)
case
inspected_value
|> string.starts_with("\"")
{
True ->
inspected_value
|> string.drop_left(1)
|> string.drop_right(1)
False -> inspected_value
}
}
pub fn get_input(day: String) -> Result(String, FileError) {
simplifile.read("src/day" <> day <> "/input.txt")
}
pub fn get_test_folder(day: String) -> String {
"test/day" <> day
}
pub type Problem {
First
Second
}
pub fn get_part() -> Result(Problem, Nil) {
case start_arguments() {
["1"] -> Ok(First)
["2"] -> Ok(Second)
_ -> Error(Nil)
}
}
pub fn start_arguments() -> List(String) {
get_start_arguments()
|> list.map(to_string)
}
type Charlist
/// Transform a charlist to a string
@external(erlang, "unicode", "characters_to_binary")
fn to_string(a: Charlist) -> String
@external(erlang, "init", "get_plain_arguments")
fn get_start_arguments() -> List(Charlist)