--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/XmlHandler.h Sun Sep 16 14:39:10 2018 +0200
@@ -0,0 +1,86 @@
+#pragma once
+
+#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>
+
+namespace relpipe {
+namespace out {
+namespace tabular {
+
+using namespace relpipe::reader;
+
+class XmlHandler : public handlers::RelationalReaderStringHadler {
+private:
+ std::wstring_convert<std::codecvt_utf8<wchar_t>> convertor; // XML output will be always in UTF-8
+ const char* INDENT = "\t";
+
+ std::ostream &output;
+
+ std::vector<TypeId> columnTypes;
+ std::vector<string_t> columnTypeCodes;
+ std::vector<string_t> columnNames;
+ std::vector<integer_t> columnWidths;
+ std::vector<string_t> values; // all values are saved here and processed at the end of the relation
+ integer_t columnCount = 0;
+
+
+
+ const string_t escapeXmlText(const string_t &value, const char* color) {
+ std::wstringstream result;
+
+ for (auto & ch : value) {
+ switch (ch) {
+ // FIXME: xml escaping
+ case L'&': result << L"&";
+ break;
+ default: result << ch;
+ }
+ }
+
+ return result.str();
+ }
+
+public:
+
+ XmlHandler(std::ostream& output) : output(output) {
+ }
+
+ void startRelation(string_t name, std::vector<handlers::AttributeMetadata> attributes) override {
+ output << convertor.to_bytes(name) << ": (XML)" << endl;
+ columnCount = attributes.size();
+ columnTypes.resize(columnCount);
+ columnTypeCodes.resize(columnCount);
+ columnNames.resize(columnCount);
+ columnWidths.resize(columnCount, 0);
+ for (int i = 0; i < attributes.size(); i++) {
+ columnNames[i] = attributes[i].getAttributeName();
+ columnTypes[i] = attributes[i].getTypeId();
+ columnTypeCodes[i] = attributes[i].getTypeName();
+ }
+ }
+
+ void attribute(const string_t& value) override {
+ integer_t i = values.size() % columnCount;
+ values.push_back(value);
+ columnWidths[i] = max(columnWidths[i], value.length());
+ }
+
+ void endOfPipe() {
+
+ }
+
+};
+
+}
+}
+}