From e111b8b9b87fca73537dc961e58984cce57d3015 Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Wed, 18 Oct 2023 12:36:06 -0400
Subject: [PATCH] Performance optimization.

---
 src/parser/bullshitium.rs | 36 ++++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/parser/bullshitium.rs b/src/parser/bullshitium.rs
index ca6dda9..27151c0 100644
--- a/src/parser/bullshitium.rs
+++ b/src/parser/bullshitium.rs
@@ -12,7 +12,9 @@ use super::util::start_of_line;
 use super::OrgSource;
 use crate::context::bind_context;
 use crate::context::RefContext;
+use crate::error::CustomError;
 use crate::error::Res;
+use crate::parser::macros::element;
 use crate::types::AffiliatedKeywords;
 use crate::types::Object;
 use crate::types::Paragraph;
@@ -40,8 +42,9 @@ pub(crate) fn detect_bullshitium<'b, 'g, 'r, 's>(
     context: RefContext<'b, 'g, 'r, 's>,
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, ()> {
-    bullshitium(context, input)?;
-    Ok((input, ()))
+    element!(detect_broken_end, context, input);
+    element!(detect_broken_dynamic_block, context, input);
+    Err(nom::Err::Error(CustomError::Static("No bullshitium.")))
 }
 
 #[cfg_attr(
@@ -88,6 +91,21 @@ pub(crate) fn broken_end<'b, 'g, 'r, 's>(
     }
 }
 
+#[cfg_attr(
+    feature = "tracing",
+    tracing::instrument(ret, level = "debug", skip(context))
+)]
+pub(crate) fn detect_broken_end<'b, 'g, 'r, 's>(
+    _context: RefContext<'b, 'g, 'r, 's>,
+    input: OrgSource<'s>,
+) -> Res<OrgSource<'s>, ()> {
+    start_of_line(input)?;
+    let (remaining, _) = space0(input)?;
+    let (remaining, _) = tag_no_case(":end:")(remaining)?;
+    let (_remaining, _) = tuple((space0, org_line_ending))(remaining)?;
+    Ok((input, ()))
+}
+
 #[cfg_attr(
     feature = "tracing",
     tracing::instrument(ret, level = "debug", skip(context))
@@ -131,3 +149,17 @@ pub(crate) fn broken_dynamic_block<'b, 'g, 'r, 's>(
         ))
     }
 }
+
+#[cfg_attr(
+    feature = "tracing",
+    tracing::instrument(ret, level = "debug", skip(context))
+)]
+pub(crate) fn detect_broken_dynamic_block<'b, 'g, 'r, 's>(
+    _context: RefContext<'b, 'g, 'r, 's>,
+    input: OrgSource<'s>,
+) -> Res<OrgSource<'s>, ()> {
+    start_of_line(input)?;
+    let (remaining, _) = space0(input)?;
+    let (_remaining, _) = tag_no_case("#+BEGIN:")(remaining)?;
+    Ok((input, ()))
+}