模块:Deep4 ExprDirect

可在模块:Deep4 ExprDirect/doc创建此模块的帮助文档

local p = {}
function p.test()
    local results = {}

    -- Call expr directly
    if mw.ext and mw.ext.ParserFunctions then
        results[1] = "ext_keys: "
        local ek = {}
        for k in pairs(mw.ext) do ek[#ek+1] = k end
        results[1] = results[1] .. table.concat(ek, ",")

        if mw.ext.ParserFunctions.expr then
            local expr_fn = mw.ext.ParserFunctions.expr
            results[2] = "expr_type=" .. type(expr_fn)

            -- Try calling with a number
            local ok1, r1 = pcall(expr_fn, "1+1")
            results[3] = "expr(1+1)=" .. tostring(ok1) .. ":" .. tostring(r1)

            -- Try calling with a string
            local ok2, r2 = pcall(expr_fn, "2*3")
            results[4] = "expr(2*3)=" .. tostring(ok2) .. ":" .. tostring(r2)
        else
            results[2] = "no_expr_func"
        end
    else
        results[1] = "no_ext"
    end

    return table.concat(results, " | ")
end
return p