diff -r b1f6fa3a6555 -r e9aad9dd823a src/lib/BasicUnescapingINIHandler.h
--- a/src/lib/BasicUnescapingINIHandler.h	Sat Nov 28 00:46:40 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#include <sstream>
-
-#include "UnescapingINIHandler.h"
-
-using namespace std;
-using namespace relpipe::writer;
-
-namespace relpipe {
-namespace in {
-namespace ini {
-namespace lib {
-
-class BasicUnescapingINIContentHandler : public UnescapingINIContentHandler {
-protected:
-
-	virtual std::string unescape(const std::string& s) {
-		std::stringstream result;
-		for (int i = 0, length = s.size(); i < length; i++) {
-			char ch = s[i];
-			if (i + 1 < length && ch == ESC) {
-				ch = s[i + 1];
-				if (ch == 'n') put(result, '\n', i);
-				else if (ch == 'r') put(result, '\r', i);
-				else if (ch == 't') put(result, '\t', i);
-				else if (ch == 's') put(result, ' ', i); // TODO: Reconsider what is „basic“ escaping and should be supported.
-				else if (ch == '"') put(result, ch, i); //        The delimiters (\n,]",') are already unescaped during the first stage in the INIReader while parsing (the delimiter relevant to given environment is unescaped, e.g. \" in "quoted" value).
-				else if (ch == '\'') put(result, ch, i); //       So it does not necessary to do it here. But someone might write a="xxx\'zzz" however it is superfluous because a="xxx'zzz" will also work.
-				else if (ch == ']') put(result, ch, i);
-				else if (ch == ':') put(result, ch, i);
-				else if (ch == ';') put(result, ch, i);
-				else if (ch == '#') put(result, ch, i);
-				else if (ch == '=') put(result, ch, i);
-				else if (ch == ESC && !lastEscaphingPhase) put(result, ESC, i).put(ESC); // copy and skip even the second \ to avoid its misinterpretation in the next cycle
-				else if (ch == ESC && lastEscaphingPhase) put(result, ESC, i); // unescape \\ to \.
-				else if (lastEscaphingPhase) throw std::logic_error(std::string("Unsupported escape sequence: ") + ch);
-				else result.put(ESC); // keep the escape sequence for later unescaping phase
-			} else if (ch == ESC) {
-				throw std::logic_error(std::string("Missing escape sequence")); // this should not happen
-			} else {
-				result.put(ch);
-			}
-		}
-		return result.str();
-	}
-
-public:
-
-	BasicUnescapingINIContentHandler(INIContentHandler& output, bool lastEscaphingPhase) : UnescapingINIContentHandler(output, lastEscaphingPhase) {
-	}
-
-};
-
-}
-}
-}
-}