我需要将lua表转换为KEY = VAL
e.g:
local t1 = {
t0 = "valt0",
t1 = "valt1",
tN = {
t0key = "t0var",
t1key = "t1var",
}
}
是
t0="valt0", t1="valt1", tN_t0key="t0var", tN_t1key="t1var"
有人有建议吗?
答案 0 :(得分:0)
创建一个遍历表的函数,检查值是否为table,在这种情况下将该表反馈到同一个函数中。对于任何不是桌子的东西,把它写到你的新展平桌子上。根据发生的可能性,您可能希望通过跟踪已经迭代过的表来检查没有循环引用。
答案 1 :(得分:0)
local t1 = {
t0 = "valt0",
t1 = "valt1",
t2 = 42,
tN = {t0key = "t0var",
t1key = "t1var"}
}
local function convert(t)
local arr = {}
local cyclic = {}
local function convert_subtable(t, prefix)
assert(not cyclic[t], 'Cannot convert: cyclic reference detected')
cyclic[t] = true
for k, v in pairs(t) do
k = prefix..tostring(k)
if type(v) == 'number' or type(v) == 'boolean' then
table.insert(arr, k..'='..tostring(v))
elseif type(v) == 'table' then
convert_subtable(v, prefix..k..'_')
else
table.insert(arr, k..'='..string.format('%q', tostring(v)))
end
end
cyclic[t] = nil
end
convert_subtable(t, '')
table.sort(arr)
return table.concat(arr, ', ')
end
print(convert(t1)) --> t0="valt0", t1="valt1", t2=42, tN_t0key="t0var", tN_t1key="t1var"