RE: xml parsing problem

> When I try to print out tbl[1][1]:
>
> io.write(tostring(tbl[1][cusomer_cnt]))
>
> the print out result is: nil

Apart from the typo (cusomer_cnt instead of customer_cnt), I’m not sure what you expect from the call.

This is what is contained in tbl:

{

[1] = "

[2] =

{

[1] = "

[2] =

{

[1] = "

[2] =

{

[1] = "XYZ Market",

["attr"] =

{

["tag"] = "CompanyName",

[3] = "

[4] =

{

[1] = "John Doe",

["attr"] =

{

["tag"] = "ContactName",

[5] = "

[6] =

{

[1] = "Marketing Manager",

["attr"] =

{

["tag"] = "ContactTitle",

[7] = "

[8] =

{

[1] = "(212) 555-1212",

["attr"] =

{

["tag"] = "Phone",

[9] = "

[10] =

{

[1] = "

[2] =

{

[1] = "100 Park Avenue.",

["attr"] =

{

["tag"] = "Address",

[3] = "

[4] =

{

[1] = "New York",

["attr"] =

{

["tag"] = "City",

[5] = "

[6] =

{

[1] = "NY",

["attr"] =

{

["tag"] = "State",

[7] = "

["attr"] =

{

["tag"] = "FullAddress",

[11] = "

["attr"] =

{

[1] = "CustomerID",

["CustomerID"] = "XYZ",

["tag"] = "Customer",

[3] = "

["attr"] =

{

["tag"] = "Customers",

[3] = "

["attr"] =

{

["tag"] = "Root",

}

Check the LuaExpat documentation [1] for details on the table format.

Tom

[1] http://matthewwild.co.uk/projects/luaexpat/lom.html

From: lua-l-bounces@lists.lua.org [mailto:lua-l-bounces@lists.lua.org] On Behalf Of Jim zhang
Sent: Wednesday, February 06, 2013 3:56 PM
To: Lua mailing list
Subject: xml parsing problem

I try to use lxp.lom to parse xml file, but it gives empty table. Here is the code:

-- setup XML parser
local lom = require "lxp.lom"

--define global variables
tbl = {}
customer_cnt = 1

function initialize()
-- create a file handle to the file
local handle = io.open("testxml.xml","r")

-- read and parse the XML document
tbl = lom.parse(handle:read("*a"))
handle:close()
end;

When I try to print out tbl[1][1]:

io.write(tostring(tbl[1][cusomer_cnt]))

the print out result is: nil

testxml.xml file:

<?xml version="1.0" encoding="utf-8"?>
<Root>
<Customers>
<Customer CustomerID="XYZ">
<CompanyName>XYZ Market</CompanyName>
<ContactName>John Doe</ContactName>
<ContactTitle>Marketing Manager</ContactTitle>
<Phone>(212) 555-1212</Phone>
<FullAddress>
<Address>100 Park Avenue.</Address>
<City>New York</City>
<State>NY</State>
</FullAddress>
</Customer>
</Customers>
</Root>

Not sure what I did incorrectly here, I would like to get some help. Thank you very much!

Jim