vidhanio

use std::ops::ControlFlow;

/// Finds the first occurrence of either `a` or `b` in `s`.
///
/// Returns the index of the first occurrence of either `a` or `b` in `s`,
/// as well as a boolean indicating whether the first occurrence was `a`.
/// (If it was `b`, the boolean is `false`.)
fn find_one_of(s: &str, a: &str, b: &str) -> Option<(usize, bool)> {
    let control_flow =
        s.bytes()

vidhanio

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