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PATH: lib / node_modules / npm / node_modules / balanced-match

'use strict';
module.exports = balanced;
function balanced(a, b, str) {
  if (a instanceof RegExp) a = maybeMatch(a, str);
  if (b instanceof RegExp) b = maybeMatch(b, str);

var r = range(a, b, str);

return r && {
    start: r[0],
    end: r[1],
    pre: str.slice(0, r[0]),
    body: str.slice(r[0] + a.length, r[1]),
    post: str.slice(r[1] + b.length)
  };
}

function maybeMatch(reg, str) {
  var m = str.match(reg);
  return m ? m[0] : null;
}

balanced.range = range;
function range(a, b, str) {
  var begs, beg, left, right, result;
  var ai = str.indexOf(a);
  var bi = str.indexOf(b, ai + 1);
  var i = ai;

if (ai >= 0 && bi > 0) {
    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) {
        result = [ begs.pop(), bi ];
      } else {
        beg = begs.pop();
        if (beg < left) {
          left = beg;
          right = bi;
        }

bi = str.indexOf(b, i + 1);
      }

i = ai < bi && ai >= 0 ? ai : bi;
    }

if (begs.length) {
      result = [ left, right ];
    }
  }

return result;
}

[-] index.js [edit]
[-] .npmignore [edit]
[-] LICENSE.md [edit]
[+] ..
[-] package.json [edit]
[-] README.md [edit]