add more tracing, make vbvg better structure

src/paragraph/parser/absatz.rs

@@ -16,6 +16,7 @@
 
 use std::iter::Peekable;
 
+use log::trace;
 use roxmltree::{Children, Node};
 
 use crate::law::Content;
@@ -39,6 +40,7 @@ impl Absatz {
     // - String: (optional) paragraph id
     // - Content: content of the paragraph
     pub(crate) fn parse_full(c: &mut Peekable<Children>) -> (Option<String>, Content) {
+        trace!("Parsing absatz...");
         let absatz = AbsatzAbs::parse(c.next().unwrap());
         let par_id = absatz.gldsym;
 
@@ -48,6 +50,7 @@ impl Absatz {
         // If there's a  "liste" after an "absatz", the "liste" should be part of the "absatz"
         while let Some(child) = c.peek() {
             if Liste::test(child) {
+                trace!("Found liste inside absatz, parsing...");
                 let liste = Liste::parse_full(c).content;
                 content.extend(liste);
             } else if Table::test(child) {

src/paragraph/parser/abschnitt.rs

@@ -17,7 +17,7 @@
 use std::collections::HashMap;
 use std::iter::Peekable;
 
-use log::trace;
+use log::{debug, trace};
 use roxmltree::{Children, Node};
 
 use crate::law::LawBuilder;
@@ -73,6 +73,7 @@ impl Abschnitt {
             builder.new_par(par_id, Content::List(contents));
         }
 
+        debug!("Handling post metadata");
         ret.handle_metadata(&mut c, builder);
 
         // Skip all UeberschriftTitle and Absatz

src/paragraph/parser/liste.rs

@@ -44,12 +44,17 @@ impl Liste {
         // Parse stuff inside <liste>
         while let Some(child) = c.peek() {
             if Ziffernliste::test(child) {
+                trace!("Found Ziffernliste in liste, parsing...");
                 let liste = Ziffernliste::parse(&mut c);
                 content.push(liste.get_content());
             } else if Schlussteil::test(child) {
                 // 162 Schifffahrtsgesetz show use that a 'schlussteil' can be at the start of a list
                 content.push(Content::Text(Schlussteil::parse(c.next().unwrap()).content));
             } else {
+                trace!(
+                    "No more acceptable element in the list found: '{}'",
+                    child.tag_name().name()
+                );
                 break;
             }
         }