From 56e20ea0283d8018dee48d736ba9dfef3c84dc3f Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Tue, 10 Jul 2018 15:06:50 +1000
Subject: Optional indexing of line starts in UTF-8 documents by UTF-32 code
 points and UTF-16 code units added.

---
 src/Document.cxx | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'src/Document.cxx')

diff --git a/src/Document.cxx b/src/Document.cxx
index f3d8557ac..e53663f3e 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -119,6 +119,7 @@ Document::Document(int options) :
 	decorations = DecorationListCreate(IsLarge());
 
 	cb.SetPerLine(this);
+	cb.SetUTF8Substance(SC_CP_UTF8 == dbcsCodePage);
 }
 
 Document::~Document() {
@@ -194,6 +195,7 @@ bool Document::SetDBCSCodePage(int dbcsCodePage_) {
 		dbcsCodePage = dbcsCodePage_;
 		SetCaseFolder(nullptr);
 		cb.SetLineEndTypes(lineEndBitSet & LineEndTypesSupported());
+		cb.SetUTF8Substance(SC_CP_UTF8 == dbcsCodePage);
 		return true;
 	} else {
 		return false;
@@ -420,6 +422,14 @@ Sci::Position Document::VCHomePosition(Sci::Position position) const {
 		return startText;
 }
 
+Sci::Position Document::IndexLineStart(Sci::Line line, int lineCharacterIndex) const {
+	return cb.IndexLineStart(line, lineCharacterIndex);
+}
+
+Sci::Line Document::LineFromPositionIndex(Sci::Position pos, int lineCharacterIndex) const {
+	return cb.LineFromPositionIndex(pos, lineCharacterIndex);
+}
+
 int SCI_METHOD Document::SetLevel(Sci_Position line, int level) {
 	const int prev = Levels()->SetLevel(static_cast<Sci::Line>(line), level, LinesTotal());
 	if (prev != level) {
@@ -2105,6 +2115,18 @@ const char *Document::SubstituteByPosition(const char *text, Sci::Position *leng
 		return 0;
 }
 
+int Document::LineCharacterIndex() const {
+	return cb.LineCharacterIndex();
+}
+
+void Document::AllocateLineCharacterIndex(int lineCharacterIndex) {
+	return cb.AllocateLineCharacterIndex(lineCharacterIndex);
+}
+
+void Document::ReleaseLineCharacterIndex(int lineCharacterIndex) {
+	return cb.ReleaseLineCharacterIndex(lineCharacterIndex);
+}
+
 Sci::Line Document::LinesTotal() const noexcept {
 	return cb.Lines();
 }
-- 
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