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89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
#ifndef COMPONENTS_FILES_MULTIDIRSOLLECTION_HPP
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#define COMPONENTS_FILES_MULTIDIRSOLLECTION_HPP
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#include <map>
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#include <vector>
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#include <string>
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#include <cctype>
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#include <boost/filesystem/path.hpp>
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#include <components/misc/stringops.hpp>
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namespace Files
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{
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typedef std::vector<boost::filesystem::path> PathContainer;
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struct NameLess
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{
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bool mStrict;
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NameLess (bool strict) : mStrict (strict) {}
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bool operator() (const std::string& left, const std::string& right) const
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{
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if (mStrict)
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return left<right;
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std::size_t min = std::min (left.length(), right.length());
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for (std::size_t i=0; i<min; ++i)
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{
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char l = Misc::StringUtils::toLower (left[i]);
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char r = Misc::StringUtils::toLower (right[i]);
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if (l<r)
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return true;
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if (l>r)
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return false;
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}
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return left.length()<right.length();
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}
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};
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/// \brief File collection across several directories
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///
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/// This class lists all files with one specific extensions within one or more
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/// directories. If the same file appears more than once, the file in the directory
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/// with the higher priority is used.
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class MultiDirCollection
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{
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public:
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typedef std::map<std::string, boost::filesystem::path, NameLess> TContainer;
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typedef TContainer::const_iterator TIter;
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private:
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TContainer mFiles;
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public:
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MultiDirCollection (const Files::PathContainer& directories,
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const std::string& extension, bool foldCase);
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///< Directories are listed with increasing priority.
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/// \param extension The extension that should be listed in this collection. Must
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/// contain the leading dot.
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/// \param foldCase Ignore filename case
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boost::filesystem::path getPath (const std::string& file) const;
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///< Return full path (including filename) of \a file.
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///
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/// If the file does not exist, an exception is thrown. \a file must include
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/// the extension.
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bool doesExist (const std::string& file) const;
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///< \return Does a file with the given name exist?
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TIter begin() const;
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///< Return iterator pointing to the first file.
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TIter end() const;
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///< Return iterator pointing past the last file.
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};
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}
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#endif
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