diff -r f66c759d1111 -r f06781a5071b src/GrepHandler.h
--- a/src/GrepHandler.h	Mon Dec 10 21:17:26 2018 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,124 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2018 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, either version 3 of the License, or
- * (at your option) any later version.
- *
- * 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 <memory>
-#include <string>
-#include <vector>
-#include <iostream>
-#include <sstream>
-#include <locale>
-#include <codecvt>
-#include <regex>
-
-#include <relpipe/reader/typedefs.h>
-#include <relpipe/reader/TypeId.h>
-#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
-#include <relpipe/reader/handlers/AttributeMetadata.h>
-
-#include <relpipe/writer/Factory.h>
-
-#include <relpipe/cli/RelpipeCLIException.h>
-
-namespace relpipe {
-namespace tr {
-namespace grep {
-
-using namespace std;
-using namespace relpipe;
-using namespace relpipe::reader;
-using namespace relpipe::reader::handlers;
-
-class GrepHandler : public RelationalReaderStringHadler {
-private:
-	shared_ptr<writer::RelationalWriter> relationalWriter;
-
-	wregex relationNameRegEx;
-	wregex attributeNameRegEx;
-	wregex searchRegEx;
-
-	vector<boolean_t> currentSearchableAttributes;
-	vector<string_t> currentRecord;
-	integer_t currentAttributeIndex = 0;
-	boolean_t includeCurrentRecord = false;
-	boolean_t filterCurrentRelation = false;
-
-public:
-
-	GrepHandler(ostream& output, const vector<string_t>& arguments) {
-		relationalWriter.reset(writer::Factory::create(output));
-
-		if (arguments.size() == 3) {
-			relationNameRegEx = wregex(arguments[0]);
-			attributeNameRegEx = wregex(arguments[1]);
-			searchRegEx = wregex(arguments[2]);
-		} else {
-			throw cli::RelpipeCLIException(L"Usage: relpipe-tr-grep <relationNameRegExp> <attributeNameRegExp> <searchRegExp>", cli::CLI::EXIT_CODE_UNKNOWN_COMMAND);
-		}
-	}
-
-	void startRelation(string_t name, vector<AttributeMetadata> attributes) override {
-		// TODO: move to a reusable method (or use same metadata on both reader and writer side?)
-		vector<writer::AttributeMetadata> writerMetadata;
-		for (AttributeMetadata readerMetadata : attributes) {
-			writerMetadata.push_back({readerMetadata.getAttributeName(), relationalWriter->toTypeId(readerMetadata.getTypeName())});
-		}
-
-
-		currentRecord.resize(attributes.size());
-		currentSearchableAttributes.resize(attributes.size(), false);
-		filterCurrentRelation = regex_match(name, relationNameRegEx);
-		if (filterCurrentRelation) {
-			for (int i = 0; i < currentSearchableAttributes.size(); i++) {
-				currentSearchableAttributes[i] = regex_match(attributes[i].getAttributeName(), attributeNameRegEx);
-			}
-		}
-
-		relationalWriter->startRelation(name, writerMetadata, true);
-	}
-
-	void attribute(const string_t& value) override {
-		if (filterCurrentRelation) {
-			currentRecord[currentAttributeIndex] = value;
-
-			if (currentSearchableAttributes[currentAttributeIndex]) {
-				includeCurrentRecord |= regex_search(value, searchRegEx);
-			}
-
-			currentAttributeIndex++;
-
-			if (currentAttributeIndex > 0 && currentAttributeIndex % currentSearchableAttributes.size() == 0) {
-				if (includeCurrentRecord) for (string_t v : currentRecord) relationalWriter->writeAttribute(v);
-				includeCurrentRecord = false;
-			}
-
-			currentAttributeIndex = currentAttributeIndex % currentSearchableAttributes.size();
-		} else {
-			relationalWriter->writeAttribute(value);
-		}
-	}
-
-	void endOfPipe() {
-
-	}
-
-};
-
-}
-}
-}