Some sort of xsl embedded in xml?

[bonjo]

I wish to find some leads here.
My desire is such - to define a UI of some sort by XML (similar to xaml with c#).
I have a known xml elements / attributes and order.
I also have another xml, that contains data.
I wish to use conditions in my ui.xml that defines attribute's values according to the data.xml.
example:
ui.xml:

<root>
<item title="if data/gender = 'female': Ms.; else: Mr." />
</root>

data.xml:

<data>
<gender>male</gender>
</data>

So, in my very simple example, I want to somehow mix the two and get:

result.xml:

<root>
<item title="Mr." />
</root>

I know xsl is a known language for conditions on xml, that outputs html or xml (just by reading in the internet, not by known experience).
Of course, the language of the condition is something I made up, and that is what I seek. Something with a known interpreter / behavior that I can rely on, instead of doing something from scratch.
any help would be very appreciated.
Thanks.

[Dormilich]

I know xsl is a known language for conditions on xml, that outputs html or xml

XSL is not just conditions, it’s a programming language that transforms an XML document into something other (XML, HTML, Text, PDF, to name only the most common ones)

Of course, the language of the condition is something I made up, and that is what I seek. Something with a known interpreter / behavior that I can rely on, instead of doing something from scratch.

you can use any programming language (including XSL) to resolve the condition.
there are two principal approaches:
- read the XML as a data structure (requires that the language can actually load XML)
- read the XML as text

how to do that exactly depends (obviously) on the language used.

[bonjo]

And how to I "tell" the xsl-to-xml engine to read an xml file and evaluate its attributes, where it indeed contains xsl code? is that possible? (in the form I supplied)

Im doing the entire programming in JAVA, in case there're other approaches.
I started thinking about using handlebars.java as a templating engine, and then simply read the input file as an xml, re-writing it while evaluating its attributes with handlebars.
sadly, all those mustache kinds are logic-less, and I need logic.

Thank you for your help

[Dormilich]

And how to I "tell" the xsl-to-xml engine to read an xml file and evaluate its attributes, where it indeed contains xsl code?

this is language-specific. you should ask that in the forum of your language (Java Forum).

[bonjo]

Well, you're right. Sorry for targeting it from one subforum to the other.
I will continue my journey there.
have a good day