jjm::Utf8String jjm::Path::getFileName() const
{
Utf8String result;
pair<size_t, size_t> const lastComponent = getPrevComponent(path, path.size());
result.append(path.data() + lastComponent.first, path.data() + lastComponent.second);
return result;
}
jjm::Path jjm::Path::getAbsolutePath() const
{
#ifdef _WIN32
if (isEmpty())
return *this;
pair<size_t, size_t> prefix = ::getPrefix(path);
bool const hasPrefix = prefix.first != prefix.second;
bool const isAbs = isAbsolute();
if (hasPrefix && isAbs)
return *this;
Utf8String root;
if (hasPrefix)
root.append(path.data() + prefix.first, path.data() + prefix.second);
if (isAbs)
root.push_back(preferredSeparator);
else
root.push_back('.');
Utf8String root2 = invokeGetFullPathW(root);
Path root3(root2);
Path result = resolve(root3);
pair<size_t, size_t> resultPrefix = ::getPrefix(result.path);
if (resultPrefix.first == resultPrefix.second)
JFATAL(0, path);
if ( ! result.isAbsolute())
JFATAL(0, path);
if (result.isRootPath())
return result;
vector<pair<size_t, size_t> > components;
for (pair<size_t, size_t> component(resultPrefix.second, resultPrefix.second); ; )
{ component = ::getNextComponent(result.path, component.second);
if (component.first == component.second)
break;
if (1 == component.second - component.first && result.path.data()[component.first] == '.')
continue;
components.push_back(component);
}
for (size_t i = 0; i < components.size(); )
{ if (2 == components[i].second - components[i].first
&& result.path.data()[components[i].first] == '.'
&& result.path.data()[components[i].first + 1] == '.')
{ if (i == 0)
return Path();
components.erase(components.begin() + i - 1, components.begin() + i + 1);
--i;
}else
{ ++i;
}
}
Path result2;
result2.path.append(result.path.data() + resultPrefix.first, result.path.data() + resultPrefix.second);
if (components.size() == 0)
result2.path.push_back(preferredSeparator);
for (size_t i = 0; i < components.size(); ++i)
{ result2.path.push_back(preferredSeparator);
result2.path.append(result.path.data() + components[i].first, result.path.data() + components[i].second);
}
return result2;
#else
if (isEmpty())
return *this;
pair<size_t, size_t> prefix = ::getPrefix(path);
if (prefix.first != prefix.second)
throw std::runtime_error("jjm::Path::makeAbsolute() on POSIX systems does not support prefixes");
if (isAbsolute() == false)
{
errno = 0;
UniquePtr<char*, jjm::InvokeFree> currentWorkingDirectory(::getcwd(0, 0));
int const lastErrno = errno;
if (currentWorkingDirectory.get() == 0)
{ string msg = string() + "jjm::Path::getAbsolutePath() failed. "
+ "::getcwd(0, 0) failed. ";
//TODO throw runtime_error(msg + "errno " + toDecStr(lastErrno) + " " + getErrnoName(lastErrno) + ".");
throw runtime_error(msg + "errno " + toDecStr(lastErrno) + ".");
}
return resolve(Path(currentWorkingDirectory.get()));
}
return *this;
#endif
}
