Struct DirectiveInfo 

pub struct DirectiveInfo {
    pub rows_span: Range<usize>,
    pub name: String,
    pub attrs: Vec<(String, Option<String>)>,
    pub label: String,
}

One leaf directive (::name{…}) as a frontend sees it: which rows its placeholder occupies, its type, and its attributes. A plain surface paints the ⧉ name placeholder glyphs as-is; a frontend that knows the host app’s vocabulary skips the rows in rows_span and paints the real thing there, exactly as an image-capable one does with MediaInfo. Derived from VRow::leaf_directive by [directive_spans].

Core resolves nothing here — it has no idea what an embed or a toc is, and deliberately so: the directive vocabulary belongs to the app on top.

Fields

rows_span: Range<usize>

The VisualMap::rows rows this directive’s placeholder occupies — the label row plus any blank fillers under it.

name: String

The directive’s type (embed, toc, vis), no leading colons.

attrs: Vec<(String, Option<String>)>

Its {…} attributes in source order; a bare one has a None value.

label: String

Its [label] text, flattened from its inline children (empty when it has none) — what the placeholder row shows.

Implementations

impl DirectiveInfo

pub fn attr(&self, key: &str) -> Option<&str>

The value of attribute key, if it has one with a value. The convenience a frontend reaches for first (info.attr("src")), since almost every directive that draws as something real is pointed at by one attribute.

Trait Implementations

impl Clone for DirectiveInfo

fn clone(&self) -> DirectiveInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectiveInfo

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

Formats the value using the given formatter.

impl Eq for DirectiveInfo

impl PartialEq for DirectiveInfo

fn eq(&self, other: &DirectiveInfo) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DirectiveInfo