Merging and sorting multiple XML files

Hi,
I've been trying all day to do this but I think I'm too much of a
newbie...

Here is the thing:
I have multiple xml files that I need to merge and then sort some data
in them.

Here is two examples of xml files:

The first one

<?xml version="1.0"?>
<PreVCD>
	<component name="stack">
		<subpath path="stack_environment">
			<variable var="ins" symbol="!" wireonbus="1"/>
		</subpath>
	</component>
	<dump>
		<time t="0">
			<data>
				<symbol sign="!" value="0"/>
			</data>
		</time>
		<time t="10">
			<data>
				<symbol sign="!" value="1"/>
			</data>
		</time>
		<time t="25">
			<data>
				<symbol sign="!" value="0"/>
			</data>
		</time>
	</dump>
</PreVCD>

and the second

<?xml version="1.0"?>
<PreVCD>
	<component name="stack">
		<subpath path="stack_behavior">
			<variable var="i" symbol="@" bussize="1"/>
		</subpath>
	</component>
	<dump>
		<time t="0">
			<data>
				<symbol sign="@" value="0"/>
			</data>
		</time>
		<time t="5">
			<data>
				<symbol sign="@" value="1"/>
			</data>
		</time>
		<time t="10">
			<data>
				<symbol sign="@" value="0"/>
			</data>
		</time>
		<time t="20">
			<data>
				<symbol sign="@" value="1"/>
			</data>
		</time>
	</dump>
</PreVCD>



The ouput should look like:

<PreVCD>
        <component name="stack">
                <subpath path="stack_behavior">
                        <variable var="i" symbol="@" bussize="1"/>
                </subpath>
                <subpath path="stack_environment">
                        <variable var="ins" symbol="!" wireonbus="1"/>
                </subpath>
        </component>
        <dump>
                <time t="0">
                        <data>
                                <symbol sign="@" value="0"/>
                                <symbol sign="!" value="0"/>
                        </data>
                </time>
                <time t="5">
                        <data>
                                <symbol sign="@" value="1"/>
                        </data>
                </time>
                <time t="10">
                        <data>
                                <symbol sign="@" value="0"/>
                                <symbol sign="!" value="1"/>
                        </data>
                </time>
                <time t="20">
                        <data>
                                <symbol sign="@" value="1"/>
                        </data>
                </time>
                <time t="25">
                        <data>
                                <symbol sign="!" value="0"/>
                        </data>
                </time>
        </dump>
</PreVCD>


This means that the node should merge in component and in time and time
must be ordered.

Thanks in advance... this would save my day !! (and night ...)

Herve
Hi,
I've been trying all day to do this but I think I'm too much of a
newbie...

Here is the thing:
I have multiple xml files that I need to merge and then sort some data
in them.

Here is two examples of xml files:

The first one

<?xml version="1.0"?>
<PreVCD>
	<component name="stack">
		<subpath path="stack_environment">
			<variable var="ins" symbol="!" wireonbus="1"/>
		</subpath>
	</component>
	<dump>
		<time t="0">
			<data>
				<symbol sign="!" value="0"/>
			</data>
		</time>
		<time t="10">
			<data>
				<symbol sign="!" value="1"/>
			</data>
		</time>
		<time t="25">
			<data>
				<symbol sign="!" value="0"/>
			</data>
		</time>
	</dump>
</PreVCD>

and the second

<?xml version="1.0"?>
<PreVCD>
	<component name="stack">
		<subpath path="stack_behavior">
			<variable var="i" symbol="@" bussize="1"/>
		</subpath>
	</component>
	<dump>
		<time t="0">
			<data>
				<symbol sign="@" value="0"/>
			</data>
		</time>
		<time t="5">
			<data>
				<symbol sign="@" value="1"/>
			</data>
		</time>
		<time t="10">
			<data>
				<symbol sign="@" value="0"/>
			</data>
		</time>
		<time t="20">
			<data>
				<symbol sign="@" value="1"/>
			</data>
		</time>
	</dump>
</PreVCD>



The ouput should look like:

<PreVCD>
        <component name="stack">
                <subpath path="stack_behavior">
                        <variable var="i" symbol="@" bussize="1"/>
                </subpath>
                <subpath path="stack_environment">
                        <variable var="ins" symbol="!" wireonbus="1"/>
                </subpath>
        </component>
        <dump>
                <time t="0">
                        <data>
                                <symbol sign="@" value="0"/>
                                <symbol sign="!" value="0"/>
                        </data>
                </time>
                <time t="5">
                        <data>
                                <symbol sign="@" value="1"/>
                        </data>
                </time>
                <time t="10">
                        <data>
                                <symbol sign="@" value="0"/>
                                <symbol sign="!" value="1"/>
                        </data>
                </time>
                <time t="20">
                        <data>
                                <symbol sign="@" value="1"/>
                        </data>
                </time>
                <time t="25">
                        <data>
                                <symbol sign="!" value="0"/>
                        </data>
                </time>
        </dump>
</PreVCD>


This means that the node should merge in component and in time and time
must be ordered.

Thanks in advance... this would save my day !! (and night ...)

Herve