fix: optimistic parse (#541)

Author: H4ad

functions/parse.js

@@ -1,11 +1,6 @@
 const { MAX_LENGTH } = require('../internal/constants')
-const { re, t } = require('../internal/re')
 const SemVer = require('../classes/semver')
-
-const parseOptions = require('../internal/parse-options')
 const parse = (version, options) => {
-  options = parseOptions(options)
-
   if (version instanceof SemVer) {
     return version
   }
@@ -18,11 +13,6 @@ const parse = (version, options) => {
     return null
   }
 
-  const r = options.loose ? re[t.LOOSE] : re[t.FULL]
-  if (!r.test(version)) {
-    return null
-  }
-
   try {
     return new SemVer(version, options)
   } catch (er) {