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-- SPDX-FileCopyrightText: 2014-2021 Stefano Babic <stefano.babic@swupdate.org>
--
-- SPDX-License-Identifier: CC0-1.0
--
----------------------------------------------
-- Test XML parsing with Lua
----------------------------------------------
lxp = require "lxp"
lxp.lom = require "lxp.lom"
function XMLSWDescParse(name)
io.input(name)
s = io.read("*all")
return lxp.lom.parse(s)
end
function find_by_attr(tab, tag, attr, value)
for i = 1, #tab do
if (type(tab[i]) == "table") then
if (tab[i]["tag"] == tag and tab[i]["attr"][attr] == value) then
return tab[i]
end
end
end
end
function node_by_path(tab, p)
t = string.find(p, "/")
if (t == 1) then
return node_by_path(tab, string.sub(p, t + 1))
end
if (t) then
tag = string.sub(p, 1, t - 1)
else
tag = p
end
if (tab["tag"] == tag) then
return node_by_path(tab, string.sub(p, t+1))
end
for i = 1, #tab do
if (type(tab[i]) == "table") then
if (tab[i]["tag"] == tag) then
if (t == nil) then
return(tab[i])
else
return node_by_path(tab[i], string.sub(p, t+1),
attrname, value)
end
end
end
end
print ("Not found "..tag)
return nil
end
function stream_by_device(tab, device)
if (tab == nil or tab["tag"] == nil) then
return nil
end
for i = 1, #tab do
if (type(tab[i]) == "table") then
if (tab[i]["attr"]["device"] == device) then
return tab[i]
end
end
end
return nil
end
function xmlparser(name, device)
local tab = XMLSWDescParse(name)
images = node_by_path(tab, "software/images")
if (images == nil) then
print("No image found")
return nil
end
streams = stream_by_device(images, device)
local count = 0
img = {}
if (streams) then
for i = 1, #streams do
if (streams[i] and streams[i]["tag"] == "stream") then
print ("Name :"..streams[i]["attr"]["name"].." type:"..
streams[i]["attr"]["type"])
count = count + 1
img[count] = {}
img[count]["name"] = streams[i]["attr"]["name"]
img[count]["type"] = streams[i]["attr"]["type"]
--- check for all types that are scripts, for now only Lua scripts
if (streams[i]["attr"]["type"] == "lua") then
img[count]["script"] = 1
end
if (streams[i]["attr"]["volume"]) then
img[count]["volume"] = streams[i]["attr"]["volume"]
end
if (streams[i]["attr"]["mtdname"]) then
img[count]["mtdname"] = streams[i]["attr"]["mtdname"]
end
if (streams[i]["attr"]["dest"]) then
img[count]["dest"] = streams[i]["attr"]["dest"]
end
if (streams[i]["attr"]["device_id"]) then
img[count]["device_id"] = streams[i]["attr"]["device_id"]
end
end
end
end
name = node_by_path(tab, "software/name")[1]
version = tab["attr"]["version"]
print (name..version)
return name, version, count, img
end
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