Patch from Jan Martin Pettersen to ensure lexers only see the bits in each

style byte they are interested in and not of any other indicators added
by the container.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/DocumentAccessor.cxx b/src/DocumentAccessor.cxx
index 738eca7a0..f479ce025 100644
--- a/src/DocumentAccessor.cxx
+++ b/src/DocumentAccessor.cxx
@@ -58,7 +58,8 @@ bool DocumentAccessor::Match(int pos, const char *s) {
 }
 
 char DocumentAccessor::StyleAt(int position) {
-	return pdoc->StyleAt(position);
+	// Mask off all bits which aren't in the 'mask'.
+	return static_cast<char>(pdoc->StyleAt(position) & mask);
 }
 
 int DocumentAccessor::GetLine(int position) {
@@ -88,6 +89,8 @@ int DocumentAccessor::SetLineState(int line, int state) {
 }
 
 void DocumentAccessor::StartAt(unsigned int start, char chMask) {
+	// Store the mask specified for use with StyleAt.
+	mask = chMask;
 	pdoc->StartStyling(start, chMask);
 	startPosStyling = start;
 }