15 lines
336 B
Text
15 lines
336 B
Text
|
#!/usr/bin/env luajit
|
||
|
|
|
||
|
|
local json = require 'cjson'
|
||
|
|
|
||
|
|
local input = assert(json.decode(io.stdin:read("a*")))
|
||
|
|
|
||
|
|
for i, chain in ipairs{...} do
|
||
|
|
local current = input
|
||
|
|
for index in chain:gmatch("[^.]+") do
|
||
|
|
index = tonumber(index) or index
|
||
|
|
current = type(current)=="table" and current[index] or nil
|
||
|
|
end
|
||
|
|
print(json.encode(current))
|
||
|
|
end
|