finish unicode filename implementation for #64, also fixes #78

include/xlnt/workbook/workbook.hpp

@@ -362,7 +362,7 @@ public:
 
 	void save(const std::string &filename, const std::string &password);
 	void save(const xlnt::path &filename, const std::string &password);
-	void save(std::istream &stream, const std::string &password);
+	void save(std::ostream &stream, const std::string &password);
 	void save(const std::vector<std::uint8_t> &data, const std::string &password);
 
 	void load(const std::vector<std::uint8_t> &data);

source/detail/xlsx_consumer.cpp

@@ -1883,20 +1883,22 @@ void xlsx_consumer::read_worksheet(const std::string &rel_id)
 
                 auto min = static_cast<column_t::index_t>(std::stoull(parser().attribute("min")));
                 auto max = static_cast<column_t::index_t>(std::stoull(parser().attribute("max")));
+
                 auto width = std::stold(parser().attribute("width"));
-                bool custom = parser().attribute("customWidth") == std::string("1");
-                auto column_style = static_cast<std::size_t>(parser().attribute_present("style") ? std::stoull(parser().attribute("style")) : 0);
+                auto column_style = parser().attribute_present("style") 
+                    ? parser().attribute<std::size_t>("style") : static_cast<std::size_t>(0);
+                auto custom = parser().attribute_present("customWidth")
+                    ? is_true(parser().attribute("customWidth")) : false;
 
                 for (auto column = min; column <= max; column++)
                 {
-                    if (!ws.has_column_properties(column))
-                    {
-                        ws.add_column_properties(column, column_properties());
-                    }
+                    column_properties props;
 
-                    ws.get_column_properties(min).width = width;
-                    ws.get_column_properties(min).style = column_style;
-                    ws.get_column_properties(min).custom = custom;
+                    props.width = width;
+                    props.style = column_style;
+                    props.custom = custom;
+
+                    ws.add_column_properties(column, props);
                 }
 
 				if (parser().attribute_present("bestFit"))

source/detail/xlsx_crypto.cpp

@@ -27,6 +27,7 @@
 
 #include <detail/vector_streambuf.hpp>
 #include <detail/xlsx_consumer.hpp>
+#include <detail/xlsx_producer.hpp>
 #include <xlnt/utils/exceptions.hpp>
 #include <xlnt/workbook/workbook.hpp>
 
@@ -576,6 +577,16 @@ struct crypto_helper
 
         return decrypt_xlsx_standard(encryption_info, password, encrypted_package);
     }
+
+    static std::vector<std::uint8_t> encrypt_xlsx(const std::vector<std::uint8_t> &bytes, const std::string &password)
+    {
+        if (bytes.empty())
+        {
+            throw xlnt::exception("empty file");
+        }
+
+        return {};
+    }
 };
 
 void xlsx_consumer::read(std::istream &source, const std::string &password)
@@ -588,5 +599,21 @@ void xlsx_consumer::read(std::istream &source, const std::string &password)
 	read(decrypted_stream);
 }
 
+void xlsx_producer::write(std::ostream &destination, const std::string &password)
+{
+    std::vector<std::uint8_t> decrypted;
+
+    {
+        vector_ostreambuf decrypted_buffer(decrypted);
+        std::ostream decrypted_stream(&decrypted_buffer);
+        write(decrypted_stream);
+    }
+
+    const auto encrypted = crypto_helper::encrypt_xlsx(decrypted, password);
+    vector_istreambuf encrypted_buffer(encrypted);
+    
+    destination << &encrypted_buffer;
+}
+
 } // namespace detail
 } // namespace xlnt

source/detail/xlsx_producer.hpp

@@ -56,6 +56,8 @@ public:
 
 	void write(std::ostream &destination);
 
+    void write(std::ostream &destination, const std::string &password);
+
 private:
 	/// <summary>
 	/// Write all files needed to create a valid XLSX file which represents all

source/workbook/tests/test_consume_xlsx.hpp

@@ -70,10 +70,10 @@ public:
 #ifdef WIN32
         xlnt::workbook wb;
         wb.load(L"data\\19_unicode_Λ.xlsx");
-#else
-        xlnt::workbook wb;
-        wb.load("data/19_unicode_Λ.xlsx");
-#endif
         TS_ASSERT_EQUALS(wb.get_active_sheet().get_cell("A1").get_value<std::string>(), "unicode!");
+#endif
+        xlnt::workbook wb2;
+        wb2.load(u8"data/19_unicode_Λ.xlsx");
+        TS_ASSERT_EQUALS(wb2.get_active_sheet().get_cell("A1").get_value<std::string>(), "unicode!");
     }
 };

source/workbook/workbook.cpp

@@ -21,8 +21,10 @@
 //
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
+
 #include <algorithm>
 #include <array>
+#include <codecvt>
 #include <fstream>
 #include <functional>
 #include <set>
@@ -62,7 +64,7 @@ namespace {
 #ifdef WIN32
 std::wstring utf8_to_utf16(const std::string &utf8_string)
 {
-    std::wstring_convert<std::codecvt_utf8<wchar_t> convert;
+    std::wstring_convert<std::codecvt_utf8<wchar_t>> convert;
     return convert.from_bytes(utf8_string);
 }
 
@@ -83,7 +85,7 @@ void open_stream(std::ifstream &stream, const std::string &path)
 
 void open_stream(std::ofstream &stream, const std::string &path)
 {
-    stream.open(path, utf8_to_utf16(path));
+    open_stream(stream, utf8_to_utf16(path));
 }
 #else
 void open_stream(std::ifstream &stream, const std::string &path)
@@ -811,6 +813,12 @@ void workbook::save(std::ostream &stream) const
 	producer.write(stream);
 }
 
+void workbook::save(std::ostream &stream, const std::string &password)
+{
+    detail::xlsx_producer producer(*this);
+    producer.write(stream, password);
+}
+
 #ifdef WIN32
 void workbook::save(const std::wstring &filename)
 {
@@ -837,7 +845,7 @@ void workbook::load(const std::wstring &filename, const std::string &password)
 {
     std::ifstream file_stream;
     open_stream(file_stream, filename);
-    load(file_stream);
+    load(file_stream, password);
 }
 #endif
 

third-party/botan

@@ -1 +1 @@
-Subproject commit 73c2605f50e6192bf6cb560c51d32bc53b4c5597
+Subproject commit 523b2a4ca48fa5cf04ea371aabe7167ce2e5cd13