reSemVer

Regular expression to match a semantic version string.

Usage

var reSemVer = require( '@stdlib/regexp/semver' );

reSemVer()

Returns a regular expression to match a semantic version string.

var RE_SEMVER = reSemVer();
// returns <RegExp>

var parts = RE_SEMVER.exec( '1.0.0' );
/* returns
    [
        '1.0.0',
        '1',
        '0',
        '0',
        undefined,
        undefined,
        index: 0,
        input: '1.0.0',
        groups: undefined
    ]
*/

parts = RE_SEMVER.exec( '1.0.0-alpha.1' );
/* returns
    [
        '1.0.0-alpha.1',
        '1',
        '0',
        '0',
        'alpha',
        '1',
        index: 0,
        input: '1.0.0-alpha.1',
        groups: undefined
    ]
*/

reSemVer.REGEXP

Regular expression to match a semantic version string.

var parts = reSemVer.REGEXP.exec( '0.2.3' );
/* returns
    [
        '0.2.3',
        '0',
        '2',
        '3',
        undefined,
        undefined,
        index: 0,
        input: '0.2.3',
        groups: undefined
    ]
*/

Examples

var reSemVer = require( '@stdlib/regexp/semver' );

var RE_SEMVER = reSemVer();

var version = '1.0.0';
var bool = RE_SEMVER.test( version );
// returns true

version = '1.0.0-alpha.1';
bool = RE_SEMVER.test( version );
// returns true

version = '1.0.0-alpha.1+build.1';
bool = RE_SEMVER.test( version );
// returns true

version = '1.0.0-alpha.1+build.1.2.b8f12d7';
bool = RE_SEMVER.test( version );
// returns true

version = '1.2';
bool = RE_SEMVER.test( version );
// returns false

version = '-1.2.3';
bool = RE_SEMVER.test( version );
// returns false

version = 'a.b.c';
bool = RE_SEMVER.test( version );
// returns false