| [79a0317] | 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.sequence = exports.generate = exports.compile = exports.parse = void 0;
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| 4 | var parse_js_1 = require("./parse.js");
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| 5 | Object.defineProperty(exports, "parse", { enumerable: true, get: function () { return parse_js_1.parse; } });
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| 6 | var compile_js_1 = require("./compile.js");
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| 7 | Object.defineProperty(exports, "compile", { enumerable: true, get: function () { return compile_js_1.compile; } });
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| 8 | Object.defineProperty(exports, "generate", { enumerable: true, get: function () { return compile_js_1.generate; } });
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| 9 | /**
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| 10 | * Parses and compiles a formula to a highly optimized function.
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| 11 | * Combination of {@link parse} and {@link compile}.
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| 12 | *
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| 13 | * If the formula doesn't match any elements,
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| 14 | * it returns [`boolbase`](https://github.com/fb55/boolbase)'s `falseFunc`.
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| 15 | * Otherwise, a function accepting an _index_ is returned, which returns
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| 16 | * whether or not the passed _index_ matches the formula.
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| 17 | *
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| 18 | * Note: The nth-rule starts counting at `1`, the returned function at `0`.
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| 19 | *
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| 20 | * @param formula The formula to compile.
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| 21 | * @example
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| 22 | * const check = nthCheck("2n+3");
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| 23 | *
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| 24 | * check(0); // `false`
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| 25 | * check(1); // `false`
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| 26 | * check(2); // `true`
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| 27 | * check(3); // `false`
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| 28 | * check(4); // `true`
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| 29 | * check(5); // `false`
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| 30 | * check(6); // `true`
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| 31 | */
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| 32 | function nthCheck(formula) {
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| 33 | return (0, compile_js_1.compile)((0, parse_js_1.parse)(formula));
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| 34 | }
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| 35 | exports.default = nthCheck;
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| 36 | /**
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| 37 | * Parses and compiles a formula to a generator that produces a sequence of indices.
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| 38 | * Combination of {@link parse} and {@link generate}.
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| 39 | *
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| 40 | * @param formula The formula to compile.
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| 41 | * @returns A function that produces a sequence of indices.
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| 42 | * @example <caption>Always increasing</caption>
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| 43 | *
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| 44 | * ```js
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| 45 | * const gen = nthCheck.sequence('2n+3')
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| 46 | *
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| 47 | * gen() // `1`
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| 48 | * gen() // `3`
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| 49 | * gen() // `5`
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| 50 | * gen() // `8`
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| 51 | * gen() // `11`
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| 52 | * ```
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| 53 | *
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| 54 | * @example <caption>With end value</caption>
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| 55 | *
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| 56 | * ```js
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| 57 | *
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| 58 | * const gen = nthCheck.sequence('-2n+5');
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| 59 | *
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| 60 | * gen() // 0
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| 61 | * gen() // 2
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| 62 | * gen() // 4
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| 63 | * gen() // null
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| 64 | * ```
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| 65 | */
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| 66 | function sequence(formula) {
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| 67 | return (0, compile_js_1.generate)((0, parse_js_1.parse)(formula));
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| 68 | }
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| 69 | exports.sequence = sequence;
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| 70 | //# sourceMappingURL=index.js.map |
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