From 4141215d4b5aee88c946c5c143593df793dbbfa6 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Sat, 4 Jul 2015 10:48:44 -0400
Subject: [PATCH] Lexer: Clarified ::isTag lookbehind rules

---
 src/Lexer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Lexer.cpp b/src/Lexer.cpp
index c02b4408a..b773fd865 100644
--- a/src/Lexer.cpp
+++ b/src/Lexer.cpp
@@ -838,7 +838,7 @@ bool Lexer::isTag (std::string& token, Lexer::Type& type)
 {
   std::size_t marker = _cursor;
 
-  // Lookbehind: ^ | '(' | ')' | <isWhiteSpace>
+  // Lookbehind: Assert ^ or preceded by whitespace, (, or ).
   if (marker > 0                         &&
       ! isWhitespace (_text[marker - 1]) &&
       _text[marker - 1] != '('           &&