mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-24 09:25:15 +00:00
35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.compile = exports.parse = void 0;
|
||
|
|
var parse_1 = require("./parse");
|
||
|
|
Object.defineProperty(exports, "parse", { enumerable: true, get: function () { return parse_1.parse; } });
|
||
|
|
var compile_1 = require("./compile");
|
||
|
|
Object.defineProperty(exports, "compile", { enumerable: true, get: function () { return compile_1.compile; } });
|
||
|
|
/**
|
||
|
|
* Parses and compiles a formula to a highly optimized function.
|
||
|
|
* Combination of `parse` and `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`
|
||
|
|
*/
|
||
|
|
function nthCheck(formula) {
|
||
|
|
return compile_1.compile(parse_1.parse(formula));
|
||
|
|
}
|
||
|
|
exports.default = nthCheck;
|