Std.Text.Parse.lookAhead

fn

lookAhead: fn(Std.Text.Parse.Input) -> Result[(T, Std.Text.Parse.Input), Std.Text.Parse.Problem] -> fn(Std.Text.Parse.Input) -> Result[(T, Std.Text.Parse.Input), Std.Text.Parse.Problem]

This is a callable function.

What it does

Succeed exactly where the parser would, consuming nothing.

Deciding which record follows without reading it is this.

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.
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.

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