@storybook/semver/internal/re.js

The semantic version parser used by npm for browser.

"use strict";

require("core-js/modules/es.array.concat");

require("core-js/modules/es.regexp.constructor");

require("core-js/modules/es.regexp.exec");

require("core-js/modules/es.regexp.to-string");

var _require = require('./constants'),
    MAX_SAFE_COMPONENT_LENGTH = _require.MAX_SAFE_COMPONENT_LENGTH;

var debug = require('./debug');

exports = module.exports = {}; // The actual regexps go on exports.re

var re = exports.re = [];
var src = exports.src = [];
var t = exports.t = {};
var R = 0;

var createToken = function createToken(name, value, isGlobal) {
  var index = R++;
  debug(index, value);
  t[name] = index;
  src[index] = value;
  re[index] = new RegExp(value, isGlobal ? 'g' : undefined);
}; // The following Regular Expressions can be used for tokenizing,
// validating, and parsing SemVer version strings.
// ## Numeric Identifier
// A single `0`, or a non-zero digit followed by zero or more digits.


createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*');
createToken('NUMERICIDENTIFIERLOOSE', '[0-9]+'); // ## Non-numeric Identifier
// Zero or more digits, followed by a letter or hyphen, and then zero or
// more letters, digits, or hyphens.

createToken('NONNUMERICIDENTIFIER', '\\d*[a-zA-Z-][a-zA-Z0-9-]*'); // ## Main Version
// Three dot-separated numeric identifiers.

createToken('MAINVERSION', "(".concat(src[t.NUMERICIDENTIFIER], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIER], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIER], ")"));
createToken('MAINVERSIONLOOSE', "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")\\.") + "(".concat(src[t.NUMERICIDENTIFIERLOOSE], ")")); // ## Pre-release Version Identifier
// A numeric identifier, or a non-numeric identifier.

createToken('PRERELEASEIDENTIFIER', "(?:".concat(src[t.NUMERICIDENTIFIER], "|").concat(src[t.NONNUMERICIDENTIFIER], ")"));
createToken('PRERELEASEIDENTIFIERLOOSE', "(?:".concat(src[t.NUMERICIDENTIFIERLOOSE], "|").concat(src[t.NONNUMERICIDENTIFIER], ")")); // ## Pre-release Version
// Hyphen, followed by one or more dot-separated pre-release version
// identifiers.

createToken('PRERELEASE', "(?:-(".concat(src[t.PRERELEASEIDENTIFIER], "(?:\\.").concat(src[t.PRERELEASEIDENTIFIER], ")*))"));
createToken('PRERELEASELOOSE', "(?:-?(".concat(src[t.PRERELEASEIDENTIFIERLOOSE], "(?:\\.").concat(src[t.PRERELEASEIDENTIFIERLOOSE], ")*))")); // ## Build Metadata Identifier
// Any combination of digits, letters, or hyphens.

createToken('BUILDIDENTIFIER', '[0-9A-Za-z-]+'); // ## Build Metadata
// Plus sign, followed by one or more period-separated build metadata
// identifiers.

createToken('BUILD', "(?:\\+(".concat(src[t.BUILDIDENTIFIER], "(?:\\.").concat(src[t.BUILDIDENTIFIER], ")*))")); // ## Full Version String
// A main version, followed optionally by a pre-release version and
// build metadata.
// Note that the only major, minor, patch, and pre-release sections of
// the version string are capturing groups.  The build metadata is not a
// capturing group, because it should not ever be used in version
// comparison.

createToken('FULLPLAIN', "v?".concat(src[t.MAINVERSION]).concat(src[t.PRERELEASE], "?").concat(src[t.BUILD], "?"));
createToken('FULL', "^".concat(src[t.FULLPLAIN], "$")); // like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
// common in the npm registry.

createToken('LOOSEPLAIN', "[v=\\s]*".concat(src[t.MAINVERSIONLOOSE]).concat(src[t.PRERELEASELOOSE], "?").concat(src[t.BUILD], "?"));
createToken('LOOSE', "^".concat(src[t.LOOSEPLAIN], "$"));
createToken('GTLT', '((?:<|>)?=?)'); // Something like "2.*" or "1.2.x".
// Note that "x.x" is a valid xRange identifer, meaning "any version"
// Only the first item is strictly required.

createToken('XRANGEIDENTIFIERLOOSE', "".concat(src[t.NUMERICIDENTIFIERLOOSE], "|x|X|\\*"));
createToken('XRANGEIDENTIFIER', "".concat(src[t.NUMERICIDENTIFIER], "|x|X|\\*"));
createToken('XRANGEPLAIN', "[v=\\s]*(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIER], ")") + "(?:".concat(src[t.PRERELEASE], ")?").concat(src[t.BUILD], "?") + ")?)?");
createToken('XRANGEPLAINLOOSE', "[v=\\s]*(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:\\.(".concat(src[t.XRANGEIDENTIFIERLOOSE], ")") + "(?:".concat(src[t.PRERELEASELOOSE], ")?").concat(src[t.BUILD], "?") + ")?)?");
createToken('XRANGE', "^".concat(src[t.GTLT], "\\s*").concat(src[t.XRANGEPLAIN], "$"));
createToken('XRANGELOOSE', "^".concat(src[t.GTLT], "\\s*").concat(src[t.XRANGEPLAINLOOSE], "$")); // Coercion.
// Extract anything that could conceivably be a part of a valid semver

createToken('COERCE', "".concat('(^|[^\\d])' + '(\\d{1,').concat(MAX_SAFE_COMPONENT_LENGTH, "})") + "(?:\\.(\\d{1,".concat(MAX_SAFE_COMPONENT_LENGTH, "}))?") + "(?:\\.(\\d{1,".concat(MAX_SAFE_COMPONENT_LENGTH, "}))?") + "(?:$|[^\\d])");
createToken('COERCERTL', src[t.COERCE], true); // Tilde ranges.
// Meaning is "reasonably at or greater than"

createToken('LONETILDE', '(?:~>?)');
createToken('TILDETRIM', "(\\s*)".concat(src[t.LONETILDE], "\\s+"), true);
exports.tildeTrimReplace = '$1~';
createToken('TILDE', "^".concat(src[t.LONETILDE]).concat(src[t.XRANGEPLAIN], "$"));
createToken('TILDELOOSE', "^".concat(src[t.LONETILDE]).concat(src[t.XRANGEPLAINLOOSE], "$")); // Caret ranges.
// Meaning is "at least and backwards compatible with"

createToken('LONECARET', '(?:\\^)');
createToken('CARETTRIM', "(\\s*)".concat(src[t.LONECARET], "\\s+"), true);
exports.caretTrimReplace = '$1^';
createToken('CARET', "^".concat(src[t.LONECARET]).concat(src[t.XRANGEPLAIN], "$"));
createToken('CARETLOOSE', "^".concat(src[t.LONECARET]).concat(src[t.XRANGEPLAINLOOSE], "$")); // A simple gt/lt/eq thing, or just "" to indicate "any version"

createToken('COMPARATORLOOSE', "^".concat(src[t.GTLT], "\\s*(").concat(src[t.LOOSEPLAIN], ")$|^$"));
createToken('COMPARATOR', "^".concat(src[t.GTLT], "\\s*(").concat(src[t.FULLPLAIN], ")$|^$")); // An expression to strip any whitespace between the gtlt and the thing
// it modifies, so that `> 1.2.3` ==> `>1.2.3`

createToken('COMPARATORTRIM', "(\\s*)".concat(src[t.GTLT], "\\s*(").concat(src[t.LOOSEPLAIN], "|").concat(src[t.XRANGEPLAIN], ")"), true);
exports.comparatorTrimReplace = '$1$2$3'; // Something like `1.2.3 - 1.2.4`
// Note that these all use the loose form, because they'll be
// checked against either the strict or loose comparator form
// later.

createToken('HYPHENRANGE', "^\\s*(".concat(src[t.XRANGEPLAIN], ")") + "\\s+-\\s+" + "(".concat(src[t.XRANGEPLAIN], ")") + "\\s*$");
createToken('HYPHENRANGELOOSE', "^\\s*(".concat(src[t.XRANGEPLAINLOOSE], ")") + "\\s+-\\s+" + "(".concat(src[t.XRANGEPLAINLOOSE], ")") + "\\s*$"); // Star ranges basically just allow anything at all.

createToken('STAR', '(<|>)?=?\\s*\\*'); // >=0.0.0 is like a star

createToken('GTE0', '^\\s*>=\\s*0\.0\.0\\s*$');
createToken('GTE0PRE', '^\\s*>=\\s*0\.0\.0-0\\s*$');