diff --git a/index.js b/index.js
index d8a2660..ddf594d 100644
--- a/index.js
+++ b/index.js
@@ -203,14 +203,13 @@ function bare_math_block(state, start, end, silent) {
const endRe = /^\\end/;
if (!beginRe.test(firstLine)) { return false; }
-
+
if (silent) { return true; }
+ let nestingCount = 0;
let next;
for (next = start; !found;) {
-
next++;
-
if (next >= end) { break; }
pos = state.bMarks[next] + state.tShift[next];
@@ -221,10 +220,15 @@ function bare_math_block(state, start, end, silent) {
break;
}
const line = state.src.slice(pos, max);
- if (endRe.test(line)) {
- const lastPos = max;
- lastLine = state.src.slice(pos, lastPos);
- found = true;
+ if (beginRe.test(line)) {
+ ++nestingCount;
+ } else if (endRe.test(line)) {
+ --nestingCount;
+ if (nestingCount < 0) {
+ const lastPos = max;
+ lastLine = state.src.slice(pos, lastPos);
+ found = true;
+ }
}
}
diff --git a/test/fixtures/bare.txt b/test/fixtures/bare.txt
index 5d94a5a..ccf1140 100644
--- a/test/fixtures/bare.txt
+++ b/test/fixtures/bare.txt
@@ -29,3 +29,24 @@ end
\end{equation}2
end
.
+
+Bare block with multiple begin/ends
+.
+start
+\begin{equation}
+\begin{split}
+a = b \\
+c = c
+\end{split}
+\end{equation}
+end
+.
+start
+a=bc=c
+end
+.