import { parse } from "./parse.js";
|
import { compile, generate } from "./compile.js";
|
export { parse, compile, generate };
|
/**
|
* Parses and compiles a formula to a highly optimized function.
|
* Combination of {@link parse} and {@link compile}.
|
*
|
* If the formula doesn't match any elements,
|
* it returns [`boolbase`](https://github.com/fb55/boolbase)'s `falseFunc`.
|
* Otherwise, a function accepting an _index_ is returned, which returns
|
* whether or not the passed _index_ matches the formula.
|
*
|
* Note: The nth-rule starts counting at `1`, the returned function at `0`.
|
*
|
* @param formula The formula to compile.
|
* @example
|
* const check = nthCheck("2n+3");
|
*
|
* check(0); // `false`
|
* check(1); // `false`
|
* check(2); // `true`
|
* check(3); // `false`
|
* check(4); // `true`
|
* check(5); // `false`
|
* check(6); // `true`
|
*/
|
export default function nthCheck(formula: string): (index: number) => boolean;
|
/**
|
* Parses and compiles a formula to a generator that produces a sequence of indices.
|
* Combination of {@link parse} and {@link generate}.
|
*
|
* @param formula The formula to compile.
|
* @returns A function that produces a sequence of indices.
|
* @example <caption>Always increasing</caption>
|
*
|
* ```js
|
* const gen = nthCheck.sequence('2n+3')
|
*
|
* gen() // `1`
|
* gen() // `3`
|
* gen() // `5`
|
* gen() // `8`
|
* gen() // `11`
|
* ```
|
*
|
* @example <caption>With end value</caption>
|
*
|
* ```js
|
*
|
* const gen = nthCheck.sequence('-2n+5');
|
*
|
* gen() // 0
|
* gen() // 2
|
* gen() // 4
|
* gen() // null
|
* ```
|
*/
|
export declare function sequence(formula: string): () => number | null;
|
//# sourceMappingURL=index.d.ts.map
|
