Starting to implement the match_fail function to walk up the matcher chain.

src/parser/text_element_parser.rs

@@ -6,6 +6,7 @@ use crate::parser::parser_with_context::parser_with_context;
 use crate::parser::text::paragraph_end;
 
 use super::nom_context::OrgModeContext;
+use super::nom_context::OrgModeContextTree;
 use super::text::bold_end;
 use super::text::bold_start;
 use super::text::line_break;
@@ -28,7 +29,7 @@ fn flat_text_element<'s, 'r>(
     i: &'s str,
     context: &'r OrgModeContext<'r>,
 ) -> Res<&'s str, TextElement<'s>> {
-    // context.not_matching_fail(i)?;
+    not(|i| context.match_fail(i))(i)?;
 
     alt((
         map(span, TextElement::Span),