slice-foo/lib/slice-foo.js

Slices foo any way you'd like

'use strict';

var _require = require('./utils.js');

var curry = _require.curry;
var singles = _require.singles;
var singlesGenerator = _require.singlesGenerator;


var slicer = function slicer(i, nextFn, str) {
  var n = nextFn();
  if (!n || str.length === i) return [];

  if (str.length < i + n) return [str.slice(i, i + n)];

  return [str.slice(i, i + n)].concat(slicer(i + n, nextFn, str));
};

var generatorSlicer = function generatorSlicer(i, nextGen, str) {
  var _nextGen$next = nextGen.next();

  var n = _nextGen$next.value;
  var done = _nextGen$next.done;


  if (done || str.length === i) return [];

  if (str.length < i + n) return [str.slice(i, i + n)];

  return [str.slice(i, i + n)].concat(generatorSlicer(i + n, nextGen, str));
};

var slice = curry(function (ns, str) {
  return slicer(0, singles(ns), str);
});
var sliceWith = curry(function (fn, str) {
  return slicer(0, fn, str);
});
var sliceWithGenerator = curry(function (generator, str) {
  return generatorSlicer(0, generator(), str);
});

module.exports = {
  slice: slice,
  sliceWith: sliceWith,
  sliceWithGenerator: sliceWithGenerator
};