Struct Sub 

pub struct Sub {
    pub from: Item,
    pub to: SubTo,
    pub before: Option<Item>,
    pub not_before: Option<Item>,
    pub after: Option<Item>,
    pub not_after: Option<Item>,
    pub group_count: usize,
    pub reverse_run: Option<bool>,
    pub when: Vec<String>,
}

Fields

from: Item

to: SubTo

before: Option<Item>

not_before: Option<Item>

after: Option<Item>

not_after: Option<Item>

group_count: usize

Number of capture groups in regex order (before, not_before, from, not_after, after).

reverse_run: Option<bool>

Ruby reverse_run:: Some(true) skips the rule in the forward direction and runs it in the reversed document (and vice versa). The ISC grammar cannot express it; only Document::reverse produces it.

when: Vec<String>

ISC-WF-1 W3: the when language guards (§5). Empty = unguarded (always applicable). A guarded rule applies only when the caller selects one of these languages.

Implementations

impl Sub

pub fn max_length(&self) -> usize

Interscript::Node::Rule::Sub#max_length.

pub fn from_key(&self) -> String

ISC-WF-1 W2/W3 canonical from-key: the structural rendering of the EXPANDED from item. For literal froms this is byte-exact string equality (the corpus convention — no Unicode normalization); non-literal froms (any()/alias trees) compare structurally, which is the exact-from generalization the spec’s “from(o) == from(r)” needs on resolved items.

pub fn guard_applies(&self, language: Option<&str>) -> bool

W3 applicability: unguarded rules always apply; a guarded rule applies only when the caller selected one of its languages (§5.1 — no selection, or an undeclared selection, leaves every guard inert).

Trait Implementations

impl Clone for Sub

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Sub

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

Formats the value using the given formatter.