Changes to tighten up styling beyond the bounds of the document.

May not be permanent.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/DocumentAccessor.cxx b/src/DocumentAccessor.cxx
index 76530e1de..f115f1930 100644
--- a/src/DocumentAccessor.cxx
+++ b/src/DocumentAccessor.cxx
@@ -80,6 +80,7 @@ int DocumentAccessor::SetLineState(int line, int state) {
 
 void DocumentAccessor::StartAt(unsigned int start, char chMask) {
 	pdoc->StartStyling(start, chMask);
+	startPosStyling = start;
 }
 
 void DocumentAccessor::StartSegment(unsigned int pos) {
@@ -103,6 +104,7 @@ void DocumentAccessor::ColourTo(unsigned int pos, int chAttr) {
 				chFlags = 0;
 			chAttr |= chFlags;
 			for (unsigned int i = startSeg; i <= pos; i++) {
+				PLATFORM_ASSERT((startPosStyling + validLen) < Length());
 				styleBuf[validLen++] = static_cast<char>(chAttr);
 			}
 		}
@@ -120,6 +122,7 @@ void DocumentAccessor::Flush() {
 	if (validLen > 0) {
 		pdoc->SetStyles(validLen, styleBuf);
 		validLen = 0;
+		startPosStyling += validLen;
 	}
 }