How to use the next-server/constants.ROUTE_NAME_REGEX.exec function in next-server

compilation.moduleTemplates.javascript.hooks.render.tap('PagesPluginRenderPageRegister', (moduleSourcePostModule, module, options) => {
        const {chunk} = options

        // check if the current module is the entry module, we only want to wrap the topmost module
        if (chunk.entryModule !== module) {
          return moduleSourcePostModule
        }

        // Check if the chunk is a page
        if (!IS_BUNDLED_PAGE_REGEX.test(chunk.name)) {
          return moduleSourcePostModule
        }

        // Match the route the chunk belongs to
        let routeName = ROUTE_NAME_REGEX.exec(chunk.name)[1]

        // We need to convert \ into / when we are in windows
        // to get the proper route name
        // Here we need to do windows check because it's possible
        // to have "\" in the filename in unix.
        // Anyway if someone did that, he'll be having issues here.
        // But that's something we cannot avoid.
        if (/^win/.test(process.platform)) {
          routeName = routeName.replace(/\\/g, '/')
        }

        routeName = `/${routeName.replace(/(^|\/)index$/, '')}`

        const source = new ConcatSource(
          `(window.__NEXT_P=window.__NEXT_P||[]).push(['${routeName}', function() {\n`,
          moduleSourcePostModule,

if (IS_BUNDLED_PAGE_REGEX.test(e.module.name)) return true

        // No dependencies means this is a top level page.
        // So this is a failed page.
        return e.module.dependencies.length === 0
      })
      .map(e => e.module.chunks)
      .reduce((a, b) => [...a, ...b], [])
      .map(c => {
        const pageName = ROUTE_NAME_REGEX.exec(c.name)[1]
        return normalizePage(`/${pageName}`)
      })

    // compilation.entrypoints is a Map object, so iterating over it 0 is the key and 1 is the value
    for (const [, entrypoint] of compilation.entrypoints.entries()) {
      const result = ROUTE_NAME_REGEX.exec(entrypoint.name)
      if (!result) {
        continue
      }

      const pagePath = result[1]

      if (!pagePath) {
        continue
      }

      const page = normalizePage('/' + pagePath)

      const entry = entries[page]
      if (!entry) {
        continue
      }

.map(c => {
        const pageName = ROUTE_NAME_REGEX.exec(c.name)[1]
        return normalizePage(`/${pageName}`)
      })