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//! Encoding modes for a QR code.
use bitvec::prelude::*;
/// Encoding modes.
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub enum Mode {
/// Byte mode supports the ISO-8859-1 character set.
Byte,
}
impl Mode {
/// Create Mode from string, decide from content.
pub fn from_str(s: &str) -> Mode {
if Mode::in_byte(s) {
Mode::Byte
} else {
// Should never happen.
panic!("Unsupported mode for string {}", s);
}
}
/// Is this a valid mode for a string?
pub fn matches(&self, s: &str) -> bool {
match self {
Mode::Byte => Mode::in_byte(s),
}
}
/// BitVec<Lsb0 , u8> representation.
pub fn to_bitvec(&self) -> BitVec<Lsb0 , u8> {
match self {
Mode::Byte => bitvec![Lsb0, u8;0, 1, 0, 0],
}
}
/// Returns true if contents can be represented by the byte mode.
pub fn in_byte(_s: &str) -> bool {
true
}
}