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Merge pull request #252 from Hopiu/master
Fixed missing copy buttons for Wagtail 2.6.x.
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76 changes: 76 additions & 0 deletions
76
wagtail_modeltranslation/static/wagtail_modeltranslation/js/version_compare.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /** | ||
| * Compares two software version numbers (e.g. "1.7.1" or "1.2b"). | ||
| * | ||
| * This function was born in http://stackoverflow.com/a/6832721. | ||
| * | ||
| * @param {string} v1 The first version to be compared. | ||
| * @param {string} v2 The second version to be compared. | ||
| * @param {object} [options] Optional flags that affect comparison behavior: | ||
| * <ul> | ||
| * <li> | ||
| * <tt>lexicographical: true</tt> compares each part of the version strings lexicographically instead of | ||
| * naturally; this allows suffixes such as "b" or "dev" but will cause "1.10" to be considered smaller than | ||
| * "1.2". | ||
| * </li> | ||
| * <li> | ||
| * <tt>zeroExtend: true</tt> changes the result if one version string has less parts than the other. In | ||
| * this case the shorter string will be padded with "zero" parts instead of being considered smaller. | ||
| * </li> | ||
| * </ul> | ||
| * @returns {number|NaN} | ||
| * <ul> | ||
| * <li>0 if the versions are equal</li> | ||
| * <li>a negative integer iff v1 < v2</li> | ||
| * <li>a positive integer iff v1 > v2</li> | ||
| * <li>NaN if either version string is in the wrong format</li> | ||
| * </ul> | ||
| * | ||
| * @copyright by Jon Papaioannou (["john", "papaioannou"].join(".") + "@gmail.com") | ||
| * @license This function is in the public domain. Do what you want with it, no strings attached. | ||
| */ | ||
| function versionCompare(v1, v2, options) { | ||
| var lexicographical = options && options.lexicographical, | ||
| zeroExtend = options && options.zeroExtend, | ||
| v1parts = v1.split('.'), | ||
| v2parts = v2.split('.'); | ||
|
|
||
| function isValidPart(x) { | ||
| return (lexicographical ? /^\d+[A-Za-z]*$/ : /^\d+$/).test(x); | ||
| } | ||
|
|
||
| if (!v1parts.every(isValidPart) || !v2parts.every(isValidPart)) { | ||
| return NaN; | ||
| } | ||
|
|
||
| if (zeroExtend) { | ||
| while (v1parts.length < v2parts.length) v1parts.push("0"); | ||
| while (v2parts.length < v1parts.length) v2parts.push("0"); | ||
| } | ||
|
|
||
| if (!lexicographical) { | ||
| v1parts = v1parts.map(Number); | ||
| v2parts = v2parts.map(Number); | ||
| } | ||
|
|
||
| for (var i = 0; i < v1parts.length; ++i) { | ||
| if (v2parts.length == i) { | ||
| return 1; | ||
| } | ||
|
|
||
| if (v1parts[i] == v2parts[i]) { | ||
| continue; | ||
| } | ||
| else if (v1parts[i] > v2parts[i]) { | ||
| return 1; | ||
| } | ||
| else { | ||
| return -1; | ||
| } | ||
| } | ||
|
|
||
| if (v1parts.length != v2parts.length) { | ||
| return -1; | ||
| } | ||
|
|
||
| return 0; | ||
| } |
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