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使用Flexbox布局时，css解析有问题

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
55/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
css, lua
Domain
frontend, mobile-dev

Research direction

Open Assets/kit/pica.lua around line 180 and read the CSS parsing branch shown in the issue. Reproduce the View example with justify-content set to space-between, then verify that the parser accepts the hyphenated value and produces the expected CSS output.

Written by the indexing model from the issue text.

Description

问题
<View css="{justify-content='space-between'}"></View>

这样的写法，会报错：

space_between isn't a valid key in valid Dic {
    center = 1;
    "flex-end" = 2;
    "flex-start" = 0;
    "space-around" = 4;
    "space-between" = 3;
}
原因

原因是对css的解析不严谨，将css字符串整体将-替换为_，之后对css属性替换回来，值没有替换回来。

elseif (_v.name == "css") then
    _v.value = _gsub(_v.value, "-","_")
    local paramFun = sys:loadstring("return " .. _v.value)
    local t = paramFun()
    local css = ""
    for _k, _v in pairs(t) do
        _k = _gsub(_k, "_","-")
        if (_find(_k, "margin")) then
            css = css .. _k .. ":" .. _v*sys.scale .. ","
        else
            css = css .. _k .. ":" .. _v .. ","
        end
    end

https://github.com/alibaba/LuaViewSDK/blob/master/IOS/luaviewEx/luaviewEx/Assets/kit/pica.lua#L180

Dominant language
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