Struct SelectionCompact

pub struct SelectionCompact(/* private fields */);

A structured formatter that renders Selection expressions in compact surface syntax.

This type implements SelectionSYM and emits selection expressions using the same textual format accepted by both:

• The [sel!] macro (defined in the hypermesh_macros crate)
• The string-based parse function

Examples of this syntax include:

• *
• 0, 1..4, *
• ["A100"]?
• (0, (0 | 2), *) & (0, *, *) — intersection of two 3D expressions; simplifies to just 0, (0 | 2), * since the second operand is a superset

Used internally by the compact helper and [Selection::fmt] to produce concise, user-facing representations of selection expressions.

Example

use ndslice::selection::dsl::*;
use ndslice::selection::pretty::compact;
let expr = all(range(0..4, true_()));
println!("{}", compact(&expr)); // prints: (*, 0..4)

Trait Implementations

impl Display for SelectionCompact

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

Formats the value using the given formatter.

impl SelectionSYM for SelectionCompact

fn true_() -> Self

The universal selection (matches all nodes).

fn false_() -> Self

The identity selection (matches no nodes).

fn first(_: Self) -> Self

Selects the first index along the current dimension for which the inner selection is non-empty.

fn all(s: Self) -> Self

Selects all values along the current dimension, then applies the inner selection.

fn range<R: Into<Range>>(range: R, s: Self) -> Self

Selects values within the given range along the current dimension, then applies the inner selection.

fn label<L: Into<LabelKey>>(labels: Vec<L>, s: Self) -> Self

Selects values along the current dimension that match the given labels, then applies the inner selection.

fn any(s: Self) -> Self

Selects a random index along the current dimension, then applies the inner selection.

fn intersection(a: Self, b: Self) -> Self

The intersection (logical AND) of two selection expressions.

fn union(a: Self, b: Self) -> Self

The union (logical OR) of two selection expressions.