Hi,

I'm interested in generating C++ code recursively.

I have this "recursive definition"

<recdefine>
 <expression type="OR">
   <expression type="AND">
    <expression type="int"/>
    <expression type="string"/>
    <expression type="int"/>
   </expression>
   <expression type="AND">
    <expression type="float"/>
    <expression type="int"/>
   </expression>
   <expression type="float"/>
 </expression>
</recdefine>

And I want it to generate C++ code similiar to this:

... = new Definition (
                      new ORExpr(
                                 new ANDExpr(
                                             new INTExpr(),
                                             new STRINGExpr(),
                                             new INTExpr()
                                             )
                                 ,
                                 new ANDExpr(
                                             new FLOATExpr(),
                                             new INTExpr()
                                             )
                                 ,
                                 new FLOATExpr()
                                 )
                      );

I am able to generate recursive code such as the above with ease.
However my problem is getting the "pretty" nesting. I just get some bad jumble that is hard to look at.

Any ideas on how to do that?

Thanks

Assuming you're using templates, you could have a padding parameter, and add more spaces to the parameter everytime you apply-templates. eg
<xsl:template match="someNode">
<xsl:param name="padding" select="''"/>
<xsl:value-of select="$padding"/>
...
<xsl:apply-templates>
  <xsl:with-param name="padding" select="concat($padding, ' ')"/>
</xsl:apply-templates>

One drawback is that you might have to add it in multiple places.