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| 2 |
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| 3 |
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| 4 | !function(exports) {
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| 5 | var splitRe = /[-+_.,]+/
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| 6 | , opRe = /^[<>]=?/
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| 7 | , letters = "dabr#p"
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| 8 |
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| 9 | exports.versionDiff = versionDiff
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| 10 | exports.versionMatch = versionMatch
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| 11 |
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| 12 | function toNum(n) {
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| 13 | return n ? (isNaN(n) ? letters.indexOf(n.charAt(0).toLowerCase()) - 6 : +n) : 0
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| 14 | }
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| 15 |
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| 16 | function versionDiff(v1, v2) {
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| 17 | v1 = ("" + v1).split(splitRe)
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| 18 | v2 = ("" + v2).split(splitRe)
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| 19 | var diff = v1.length
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| 20 | , i = v2.length
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| 21 | , len = diff < i ? i : diff
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| 22 |
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| 23 | for (i = diff = 0; i < len; i++) if (v1[i] != "x" && v2[i] != "x") {
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| 24 | if (diff = toNum(v1[i]) - toNum(v2[i])) {
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| 25 | return diff > 0 ? 1 : -1
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| 26 | }
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| 27 | }
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| 28 | return 0
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| 29 | }
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| 30 |
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| 31 | function versionMatch(actual, expected) {
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| 32 | var op = expected.match(opRe)
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| 33 | , diff = versionDiff(actual, op ? expected.slice(op[0].length) : expected)
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| 34 |
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| 35 | return(
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| 36 | op == "<" ? diff < 0 :
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| 37 | op == ">" ? diff > 0 :
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| 38 | op == "<=" ? diff <= 0 :
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| 39 | op == ">=" ? diff >= 0 :
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| 40 | !diff
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| 41 | )
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| 42 | }
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| 43 | }(this)
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| 44 |
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| 45 |
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| 46 |
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