diff options
Diffstat (limited to 'deps/npm/node_modules/semver/semver.js')
| -rw-r--r-- | deps/npm/node_modules/semver/semver.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/deps/npm/node_modules/semver/semver.js b/deps/npm/node_modules/semver/semver.js index 389cb44676..6a2bc01002 100644 --- a/deps/npm/node_modules/semver/semver.js +++ b/deps/npm/node_modules/semver/semver.js @@ -21,6 +21,9 @@ exports.SEMVER_SPEC_VERSION = '2.0.0'; var MAX_LENGTH = 256; var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991; +// Max safe segment length for coercion. +var MAX_SAFE_COMPONENT_LENGTH = 16; + // The actual regexps go on exports.re var re = exports.re = []; var src = exports.src = []; @@ -156,6 +159,15 @@ src[XRANGE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAIN] + '$'; var XRANGELOOSE = R++; src[XRANGELOOSE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAINLOOSE] + '$'; +// Coercion. +// Extract anything that could conceivably be a part of a valid semver +var COERCE = R++; +src[COERCE] = '(?:^|[^\\d])' + + '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' + + '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' + + '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' + + '(?:$|[^\\d])'; + // Tilde ranges. // Meaning is "reasonably at or greater than" var LONETILDE = R++; @@ -1294,3 +1306,19 @@ function intersects(r1, r2, loose) { r2 = new Range(r2, loose) return r1.intersects(r2) } + +exports.coerce = coerce; +function coerce(version) { + if (version instanceof SemVer) + return version; + + if (typeof version !== 'string') + return null; + + var match = version.match(re[COERCE]); + + if (match == null) + return null; + + return parse((match[1] || '0') + '.' + (match[2] || '0') + '.' + (match[3] || '0')); +} |