| export default function(grouping, thousands) { | |
| return function(value, width) { | |
| var i = value.length, | |
| t = [], | |
| j = 0, | |
| g = grouping[0], | |
| length = 0; | |
| while (i > 0 && g > 0) { | |
| if (length + g + 1 > width) g = Math.max(1, width - length); | |
| t.push(value.substring(i -= g, i + g)); | |
| if ((length += g + 1) > width) break; | |
| g = grouping[j = (j + 1) % grouping.length]; | |
| } | |
| return t.reverse().join(thousands); | |
| }; | |
| } | |