Question: `xrepo install -f "name=val"` vs `xrepo install -f "name='val'"`

[Rinkaa]

Describe the bug

-f "someconfig" makes no effect for xrepo install; In the following commands, the config -f "glfw_include=es3" is ignored and makes no effect.

> xrepo install -f "glfw_include=es3" glfw
note: install or modify (m) these packages (pass -y to skip confirm)?
in xmake-repo-dev:
  -> glfw 3.3.4 
please input: y (y/n/m)
y
  => install glfw 3.3.4 .. ok
> xrepo scan glfw
scanning packages ..
glfw-3.3.4:
  -> 58b838c9240946ef80fade0f66a356e9: linux, x86_64
    -> {debug=false,shared=false,glfw_include="none",pic=true}

Expected behavior

Package with the given configs should be installed, eg. providing {glfw_include="es3"}

Related Environment

• xrepo version: xRepo 2.5.7+202109240246
• os: Linux Mint 20.2 Cinnamon

[Rinkaa]

> xrepo install -f "glfw_include='es3'" glfw
note: install or modify (m) these packages (pass -y to skip confirm)?
in xmake-repo-dev:
  -> glfw 3.3.4 [glfw_include:es3]
please input: y (y/n/m)

哦……原来需要个引号括起来 OTZ||| 但是xrepo --help和文档里面都有xrepo install -f "vs_runtime=MD" zlib这个例子，这里MD没用引号是因为MD是个变量么

[waruqi]

> xrepo install -f "glfw_include='es3'" glfw
note: install or modify (m) these packages (pass -y to skip confirm)?
in xmake-repo-dev:
  -> glfw 3.3.4 [glfw_include:es3]
please input: y (y/n/m)

哦……原来需要个引号括起来 OTZ||| 但是xrepo --help和文档里面都有xrepo install -f "vs_runtime=MD" zlib这个例子，这里MD没用引号是因为MD是个变量么

文档里面也是不对的，可以帮忙修复下

目前解析直接依赖 lua ，所以就是 {xxx="foo"} 的table解析，string value 要有 ""

[Rinkaa]

备忘： 另一个相似的命令是 xmake f --vs_runtime=MD， 不过这里的参数不带引号也会被识别成字符串