web 3d图形渲染器
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const {MAX_LENGTH} = require('../internal/constants')
const { re, t } = require('../internal/re')
const SemVer = require('../classes/semver')
const parse = (version, options) => {
if (!options || typeof options !== 'object') {
options = {
loose: !!options,
includePrerelease: false
}
}
if (version instanceof SemVer) {
return version
}
if (typeof version !== 'string') {
return null
}
if (version.length > MAX_LENGTH) {
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) {
return null
}
}
module.exports = parse