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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.range = exports.balanced = void 0;
const balanced = (a, b, str) => {
const ma = a instanceof RegExp ? maybeMatch(a, str) : a;
const mb = b instanceof RegExp ? maybeMatch(b, str) : b;
const r = ma !== null && mb != null && (0, exports.range)(ma, mb, str);
return (r && {
start: r[0],
end: r[1],
pre: str.slice(0, r[0]),
body: str.slice(r[0] + ma.length, r[1]),
post: str.slice(r[1] + mb.length),
});
};
exports.balanced = balanced;
const maybeMatch = (reg, str) => {
const m = str.match(reg);
return m ? m[0] : null;
};
const range = (a, b, str) => {
let begs, beg, left, right = undefined, result;
let ai = str.indexOf(a);
let bi = str.indexOf(b, ai + 1);
let i = ai;
if (ai >= 0 && bi > 0) {
if (a === b) {
return [ai, bi];
}
begs = [];
left = str.length;
while (i >= 0 && !result) {
if (i === ai) {
begs.push(i);
ai = str.indexOf(a, i + 1);
}
else if (begs.length === 1) {
const r = begs.pop();
if (r !== undefined)
result = [r, bi];
}
else {
beg = begs.pop();
if (beg !== undefined && beg < left) {
left = beg;
right = bi;
}
bi = str.indexOf(b, i + 1);
}
i = ai < bi && ai >= 0 ? ai : bi;
}
if (begs.length && right !== undefined) {
result = [left, right];
}
}
return result;
};
exports.range = range;
//# sourceMappingURL=index.js.map