Regular Expressions 101

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/
^(?'MAJOR'0|(?:[1-9]\d*))\.(?'MINOR'0|(?:[1-9]\d*))\.(?'PATCH'0|(?:[1-9]\d*))(?:-(?'prerelease'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?(?:\+(?'build'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?$
/
gm

Description
Created·2014-10-03 18:53
Type·Match
Flavor·PCRE (Legacy)
Recommended·

Semantic Versioning regex pattern according to Tom Preston-Werner

http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md

First version of this regex follows semver 2.0.0.

Discussion of semver and this regex was posted on https://github.com/mojombo/semver.org/issues/59

Submitted by @gvlx <Gerardo Lisboa>
Open Workspace