1 files changed, 74 insertions, 0 deletions
diff --git a/src/qdoc/qdoc/src/qdoc/codechunk.h b/src/qdoc/qdoc/src/qdoc/codechunk.h
new file mode 100644
index 000000000..00ad26c6d
--- /dev/null
+++ b/src/qdoc/qdoc/src/qdoc/codechunk.h
@@ -0,0 +1,74 @@
+// Copyright (C) 2019 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#ifndef CODECHUNK_H
+#define CODECHUNK_H
+
+#include <QtCore/qstring.h>
+
+QT_BEGIN_NAMESPACE
+
+// ### get rid of that class
+
+class CodeChunk
+{
+public:
+    CodeChunk() : m_hotspot(-1) { }
+
+    void append(const QString &lexeme);
+    void appendHotspot()
+    {
+        if (m_hotspot == -1)
+            m_hotspot = m_str.size();
+    }
+
+    [[nodiscard]] bool isEmpty() const { return m_str.isEmpty(); }
+    void clear() { m_str.clear(); }
+    [[nodiscard]] QString toString() const { return m_str; }
+    [[nodiscard]] QString left() const
+    {
+        return m_str.left(m_hotspot == -1 ? m_str.size() : m_hotspot);
+    }
+    [[nodiscard]] QString right() const
+    {
+        return m_str.mid(m_hotspot == -1 ? m_str.size() : m_hotspot);
+    }
+
+private:
+    QString m_str {};
+    qsizetype m_hotspot {};
+};
+
+inline bool operator==(const CodeChunk &c, const CodeChunk &d)
+{
+    return c.toString() == d.toString();
+}
+
+inline bool operator!=(const CodeChunk &c, const CodeChunk &d)
+{
+    return !(c == d);
+}
+
+inline bool operator<(const CodeChunk &c, const CodeChunk &d)
+{
+    return c.toString() < d.toString();
+}
+
+inline bool operator>(const CodeChunk &c, const CodeChunk &d)
+{
+    return d < c;
+}
+
+inline bool operator<=(const CodeChunk &c, const CodeChunk &d)
+{
+    return !(c > d);
+}
+
+inline bool operator>=(const CodeChunk &c, const CodeChunk &d)
+{
+    return !(c < d);
+}
+
+QT_END_NAMESPACE
+
+#endif