wolfram-expr
Representation of Wolfram Language expressions.
Examples
Construct the expression {1, 2, 3}:
use wolfram_expr::{Expr, Symbol};
let expr = Expr::normal(Symbol::new("System`List"), vec![
Expr::from(1),
Expr::from(2),
Expr::from(3)
]);
Pattern match over different expression variants:
use wolfram_expr::{Expr, ExprKind};
let expr = Expr::from("some arbitrary expression");
match expr.kind() {
ExprKind::Integer(1) => println!("got 1"),
ExprKind::Integer(n) => println!("got {}", n),
ExprKind::Real(_) => println!("got a real number"),
ExprKind::String(s) => println!("got string: {}", s),
ExprKind::Symbol(sym) => println!("got symbol named {}", sym.symbol_name()),
ExprKind::Normal(e) => println!(
"got expr with head {} and length {}",
e.head(),
e.elements().len()
),
}
Related Links
Related crates
wolfram-library-link— author libraries that can be dynamically loaded by the Wolfram Language.wstp— bindings to the Wolfram Symbolic Transport Protocol, used for passing arbitrary Wolfram expressions between programs.wolfram-app-discovery— utility for locating local installations of Wolfram applications and the Wolfram Language.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
See CONTRIBUTING.md for more information.
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