refactor: Restructure project into sources/tests layout and dissolve PluginLLMCore

sources/completion/CodeHandler.hpp

@@ -0,0 +1,41 @@
+// Copyright (C) 2024-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#pragma once
+
+#include <QObject>
+#include <QRegularExpression>
+#include <QString>
+
+namespace QodeAssist {
+
+class CodeHandler
+{
+public:
+    static QString processText(QString text, QString currentFileName);
+
+    /**
+     * Detects language from line, or returns empty string if this was not possible
+     */
+    static QString detectLanguageFromLine(const QString &line);
+
+    /**
+     * Detects language file name, or returns empty string if this was not possible
+     */
+    static QString detectLanguageFromExtension(const QString &extension);
+
+    /**
+     * Detects if text contains code blocks, or returns false if this was not possible
+     */
+    static bool hasCodeBlocks(const QString &text);
+
+private:
+    static QString getCommentPrefix(const QString &language);
+
+    static const QRegularExpression &getFullCodeBlockRegex();
+    static const QRegularExpression &getPartialStartBlockRegex();
+    static const QRegularExpression &getPartialEndBlockRegex();
+};
+
+} // namespace QodeAssist