Std.Text.Parse.choice
1 declaration
fn
choice: &Array[fn(Std.Text.Parse.Input) -> Result[(T, Std.Text.Parse.Input), Std.Text.Parse.Problem]] -> Str -> fn(Std.Text.Parse.Input) -> Result[(T, Std.Text.Parse.Input), Std.Text.Parse.Problem]This is a callable function.
What it does
The first parser that succeeds.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- & borrows a value for this call instead of moving or copying it.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Result makes success and recoverable failure part of the function's type.