Move in_section to a util module.

src/parser/util.rs

@@ -0,0 +1,15 @@
+use super::parser_context::ContextElement;
+use super::Context;
+
+pub fn in_section<'s, 'r, 'x>(context: Context<'r, 's>, section_name: &'x str) -> bool {
+    for thing in context.iter() {
+        match thing.get_data() {
+            ContextElement::ExitMatcherNode(_) => {}
+            ContextElement::PreviousElementNode(_) => {}
+            ContextElement::Context(name) if *name == section_name => return true,
+            ContextElement::Context(_) => {}
+            ContextElement::StartOfParagraph => {} // TODO: If we specialize this to bold then this would be a good spot to stop scanning
+        }
+    }
+    false
+}