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#!/usr/bin/env luajit

local xmlua = require("xmlua")

local xml = [[

<root>

<sub1>text1</sub1>

<sub2>text2</sub2>

<sub3>text3</sub3>

</root>

]]

local document = xmlua.XML.parse(xml)

-- Searches the <root> element

local root_node_set = document:css_select("root")

-- You can use "#" for getting the number of matched nodes

print(#root_node_set) -- -> 1

-- You can access the N-th node by "[]".

-- It's 1-origin like normal table.

local root = root_node_set[1] -- xmlua.Element

print(root:to_xml())

-- <root>

-- <sub1>text1</sub1>

-- <sub2>text2</sub2>

-- <sub3>text3</sub3>

-- </root>

-- Searches all sub elements under the <root> element

local all_subs = root:css_select("*")

-- You can use "#" for getting the number of matched nodes

print(#all_subs) -- -> 3

-- You can access the N-th node by "[]".

print(all_subs[1]:to_xml()) -- -> <sub1>text1</sub1>

print(all_subs[2]:to_xml()) -- -> <sub2>text2</sub2>

print(all_subs[3]:to_xml()) -- -> <sub3>text3</sub3>