diff options
Diffstat (limited to 'zen/xml_io.cpp')
-rwxr-xr-x | zen/xml_io.cpp | 166 |
1 files changed, 83 insertions, 83 deletions
diff --git a/zen/xml_io.cpp b/zen/xml_io.cpp index d3d59200..0a1c8505 100755 --- a/zen/xml_io.cpp +++ b/zen/xml_io.cpp @@ -1,83 +1,83 @@ -// *****************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 *
-// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
-// *****************************************************************************
-
-#include "xml_io.h"
-#include "file_access.h"
-#include "file_io.h"
-
-using namespace zen;
-
-
-XmlDoc zen::loadXmlDocument(const Zstring& filePath) //throw FileError
-{
- FileInput fileIn(filePath, nullptr /*notifyUnbufferedIO*/); //throw FileError, ErrorFileLocked
- const size_t blockSize = fileIn.getBlockSize();
- const std::string xmlPrefix = "<?xml version=";
- bool xmlPrefixChecked = false;
-
- std::string buffer;
- for (;;)
- {
- buffer.resize(buffer.size() + blockSize);
- const size_t bytesRead = fileIn.read(&*(buffer.end() - blockSize), blockSize); //throw FileError, (X); return "bytesToRead" bytes unless end of stream!
- buffer.resize(buffer.size() - blockSize + bytesRead); //caveat: unsigned arithmetics
-
- //quick test whether input is an XML: avoid loading large binary files up front!
- if (!xmlPrefixChecked && buffer.size() >= xmlPrefix.size() + strLength(BYTE_ORDER_MARK_UTF8))
- {
- xmlPrefixChecked = true;
- if (!startsWith(buffer, xmlPrefix) &&
- !startsWith(buffer, BYTE_ORDER_MARK_UTF8 + xmlPrefix)) //allow BOM!
- throw FileError(replaceCpy(_("File %x does not contain a valid configuration."), L"%x", fmtPath(filePath)));
- }
-
- if (bytesRead < blockSize) //end of file
- break;
- }
-
- try
- {
- return parse(buffer); //throw XmlParsingError
- }
- catch (const XmlParsingError& e)
- {
- throw FileError(
- replaceCpy(replaceCpy(replaceCpy(_("Error parsing file %x, row %y, column %z."),
- L"%x", fmtPath(filePath)),
- L"%y", numberTo<std::wstring>(e.row + 1)),
- L"%z", numberTo<std::wstring>(e.col + 1)));
- }
-}
-
-
-void zen::saveXmlDocument(const XmlDoc& doc, const Zstring& filePath) //throw FileError
-{
- const std::string stream = serialize(doc); //noexcept
-
- //only update xml file if there are real changes
- try
- {
- if (getFileSize(filePath) == stream.size()) //throw FileError
- if (loadBinContainer<std::string>(filePath, nullptr /*notifyUnbufferedIO*/) == stream) //throw FileError
- return;
- }
- catch (FileError&) {}
-
- saveBinContainer(filePath, stream, nullptr /*notifyUnbufferedIO*/); //throw FileError
-}
-
-
-void zen::checkForMappingErrors(const XmlIn& xmlInput, const Zstring& filePath) //throw FileError
-{
- if (xmlInput.errorsOccured())
- {
- std::wstring msg = _("The following XML elements could not be read:") + L"\n";
- for (const std::wstring& elem : xmlInput.getErrorsAs<std::wstring>())
- msg += L"\n" + elem;
-
- throw FileError(replaceCpy(_("Configuration file %x is incomplete. The missing elements will be set to their default values."), L"%x", fmtPath(filePath)) + L"\n\n" + msg);
- }
-}
+// ***************************************************************************** +// * This file is part of the FreeFileSync project. It is distributed under * +// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 * +// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved * +// ***************************************************************************** + +#include "xml_io.h" +#include "file_access.h" +#include "file_io.h" + +using namespace zen; + + +XmlDoc zen::loadXmlDocument(const Zstring& filePath) //throw FileError +{ + FileInput fileIn(filePath, nullptr /*notifyUnbufferedIO*/); //throw FileError, ErrorFileLocked + const size_t blockSize = fileIn.getBlockSize(); + const std::string xmlPrefix = "<?xml version="; + bool xmlPrefixChecked = false; + + std::string buffer; + for (;;) + { + buffer.resize(buffer.size() + blockSize); + const size_t bytesRead = fileIn.read(&*(buffer.end() - blockSize), blockSize); //throw FileError, (X); return "bytesToRead" bytes unless end of stream! + buffer.resize(buffer.size() - blockSize + bytesRead); //caveat: unsigned arithmetics + + //quick test whether input is an XML: avoid loading large binary files up front! + if (!xmlPrefixChecked && buffer.size() >= xmlPrefix.size() + strLength(BYTE_ORDER_MARK_UTF8)) + { + xmlPrefixChecked = true; + if (!startsWith(buffer, xmlPrefix) && + !startsWith(buffer, BYTE_ORDER_MARK_UTF8 + xmlPrefix)) //allow BOM! + throw FileError(replaceCpy(_("File %x does not contain a valid configuration."), L"%x", fmtPath(filePath))); + } + + if (bytesRead < blockSize) //end of file + break; + } + + try + { + return parse(buffer); //throw XmlParsingError + } + catch (const XmlParsingError& e) + { + throw FileError( + replaceCpy(replaceCpy(replaceCpy(_("Error parsing file %x, row %y, column %z."), + L"%x", fmtPath(filePath)), + L"%y", numberTo<std::wstring>(e.row + 1)), + L"%z", numberTo<std::wstring>(e.col + 1))); + } +} + + +void zen::saveXmlDocument(const XmlDoc& doc, const Zstring& filePath) //throw FileError +{ + const std::string stream = serialize(doc); //noexcept + + //only update xml file if there are real changes + try + { + if (getFileSize(filePath) == stream.size()) //throw FileError + if (loadBinContainer<std::string>(filePath, nullptr /*notifyUnbufferedIO*/) == stream) //throw FileError + return; + } + catch (FileError&) {} + + saveBinContainer(filePath, stream, nullptr /*notifyUnbufferedIO*/); //throw FileError +} + + +void zen::checkForMappingErrors(const XmlIn& xmlInput, const Zstring& filePath) //throw FileError +{ + if (xmlInput.errorsOccured()) + { + std::wstring msg = _("The following XML elements could not be read:") + L"\n"; + for (const std::wstring& elem : xmlInput.getErrorsAs<std::wstring>()) + msg += L"\n" + elem; + + throw FileError(replaceCpy(_("Configuration file %x is incomplete. The missing elements will be set to their default values."), L"%x", fmtPath(filePath)) + L"\n\n" + msg); + } +} |