Struct Occur 

pub struct Occur {
    pub min: u32,
    pub max: Option<u32>,
    pub initial: u32,
}

Occurrence rules for repeating subforms (XFA S3.3 occur element).

Controls how many instances of a subform are created. The layout engine expands templates based on the initial count, bounded by min and max.

Fields

min: u32

Minimum number of occurrences (default 1).

max: Option<u32>

Maximum number of occurrences (-1 = unlimited). Default 1. Using Option<u32> where None means unlimited.

initial: u32

Initial number of occurrences (default = min).

Implementations

impl Occur

pub fn once() -> Self

Occur rule that means “exactly once” (the default).

pub fn repeating(min: u32, max: Option<u32>, initial: u32) -> Self

Occur rule for a repeating subform.

pub fn count(&self) -> u32

How many instances should be created.

pub fn is_repeating(&self) -> bool

Whether the subform can repeat (max > 1 or unlimited).

Trait Implementations

impl Clone for Occur

fn clone(&self) -> Occur

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Occur

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

Formats the value using the given formatter.

impl Default for Occur

fn default() -> Self

Returns the “default value” for a type.