Failed to match router path contains encoded string when using permalinks

[fangbinwei]

• I confirm that this is an issue rather than a question.

Bug report

Steps to reproduce

codesandbox link

file tree like below

.
├── 测试
│   └── README.md

I add a nav (/测试) , and I can route to the page successfully.

However, If I set permalink (e.g. /test) to the README.md, vue-router failed to match the page.

What is expected?

vue-router can match the page

What is actually happening?

when setting permalink, the router config generated like below. vue-router failed to match correct page because of the encoded path.

  {
    path: "/%E6%B5%8B%E8%AF%95/index.html",
    redirect: "/test/"
  },

the correct router config should like this

  {
    path: "/测试/index.html",
    redirect: "/test/"
  },

vuepress/packages/@vuepress/core/lib/node/internal-plugins/routes.js

Lines 68 to 75 in c56d889

	if (regularPath !== pagePath) {
	code += `,
	{
	path: ${JSON.stringify(regularPath)},
	redirect: ${JSON.stringify(pagePath)}
	}`
	}

the problem caused by these codes, regularPath is encoded

Other relevant information

I am trying to generate sidebar/nav automatically, so folder name in Chinese is a useful info to me.

• Output of npx vuepress info in my VuePress project:

Environment Info:

  System:
    OS: macOS 10.15
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  Binaries:
    Node: 11.12.0 - ~/.nvm/versions/node/v11.12.0/bin/node
    Yarn: 1.19.0 - /usr/local/bin/yarn
    npm: 6.7.0 - ~/.nvm/versions/node/v11.12.0/bin/npm
  Browsers:
    Chrome: 77.0.3865.90
    Firefox: Not Found
    Safari: 13.0.2
  npmPackages:
    @vuepress/core:  1.2.0 
    @vuepress/theme-default:  1.2.0 
    vuepress: ^1.0.3 => 1.2.0 
  npmGlobalPackages:
    vuepress: Not Found