| /* | |
| * @version 1.4.0 | |
| * @date 2015-10-26 | |
| * @stability 3 - Stable | |
| * @author Lauri Rooden (https://github.com/litejs/natural-compare-lite) | |
| * @license MIT License | |
| */ | |
| var naturalCompare = function(a, b) { | |
| var i, codeA | |
| , codeB = 1 | |
| , posA = 0 | |
| , posB = 0 | |
| , alphabet = String.alphabet | |
| function getCode(str, pos, code) { | |
| if (code) { | |
| for (i = pos; code = getCode(str, i), code < 76 && code > 65;) ++i; | |
| return +str.slice(pos - 1, i) | |
| } | |
| code = alphabet && alphabet.indexOf(str.charAt(pos)) | |
| return code > -1 ? code + 76 : ((code = str.charCodeAt(pos) || 0), code < 45 || code > 127) ? code | |
| : code < 46 ? 65 // - | |
| : code < 48 ? code - 1 | |
| : code < 58 ? code + 18 // 0-9 | |
| : code < 65 ? code - 11 | |
| : code < 91 ? code + 11 // A-Z | |
| : code < 97 ? code - 37 | |
| : code < 123 ? code + 5 // a-z | |
| : code - 63 | |
| } | |
| if ((a+="") != (b+="")) for (;codeB;) { | |
| codeA = getCode(a, posA++) | |
| codeB = getCode(b, posB++) | |
| if (codeA < 76 && codeB < 76 && codeA > 66 && codeB > 66) { | |
| codeA = getCode(a, posA, posA) | |
| codeB = getCode(b, posB, posA = i) | |
| posB = i | |
| } | |
| if (codeA != codeB) return (codeA < codeB) ? -1 : 1 | |
| } | |
| return 0 | |
| } | |
| try { | |
| module.exports = naturalCompare; | |
| } catch (e) { | |
| String.naturalCompare = naturalCompare; | |
| } |