Struct Postal4Pattern 

pub struct Postal4Pattern {
    pub bars: Vec<Bar4State>,
    pub text: Option<String>,
}

A 4-state postal symbol: an ordered sequence of bars with optional human-readable text.

Fields

bars: Vec<Bar4State>

Each element is one bar; bars are separated by single-module gaps in the rendered output.

text: Option<String>

Human-readable text rendered beneath the symbol when crate::Options::include_text is true.

Implementations

impl Postal4Pattern

pub fn from_digits(digits: &[u8], text: Option<String>) -> Option<Self>

Build a Postal4Pattern from a slice of 0..=3 codeword digits. Returns None if any digit is out of range.

pub fn len(&self) -> usize

Total number of bars in the symbol.

pub fn is_empty(&self) -> bool

Whether the symbol is empty.

Trait Implementations

impl Clone for Postal4Pattern

fn clone(&self) -> Postal4Pattern

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Postal4Pattern

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.