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add operator-= variants for PBD::Searchpath

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This commit is contained in:
Paul Davis 2014-07-08 00:50:09 -04:00
parent f4a84a0272
commit d3e3f5f005
2 changed files with 51 additions and 0 deletions
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12
libs/pbd/pbd/search_path.h
View file

@ -97,6 +97,16 @@ public:
*/
LIBPBD_TEMPLATE_MEMBER_API Searchpath& operator+ (const std::string& directory_path);
/**
* Remove all the directories in path from this.
*/
LIBPBD_TEMPLATE_MEMBER_API Searchpath& operator-= (const Searchpath& spath);
/**
* Remove a directory path from the search path.
*/
LIBPBD_TEMPLATE_MEMBER_API Searchpath& operator-= (const std::string& directory_path);
/**
* Add a sub-directory to each path in the search path.
* @param subdir The directory name, it should not contain
@ -108,6 +118,8 @@ protected:
LIBPBD_TEMPLATE_MEMBER_API void add_directory (const std::string& directory_path);
LIBPBD_TEMPLATE_MEMBER_API void add_directories (const std::vector<std::string>& paths);
LIBPBD_TEMPLATE_MEMBER_API void remove_directory (const std::string& directory_path);
LIBPBD_TEMPLATE_MEMBER_API void remove_directories (const std::vector<std::string>& paths);
};
LIBPBD_API void export_search_path (const std::string& base_dir, const char* varname, const char* dir);

39
libs/pbd/search_path.cc
View file

@ -49,6 +49,30 @@ Searchpath::Searchpath (const vector<std::string>& paths)
add_directories (paths);
}
void
Searchpath::remove_directory (const std::string& directory_path)
{
if (directory_path.empty()) {
return;
}
for (vector<std::string>::iterator i = begin(); i != end();) {
if (*i == directory_path) {
i = erase (i);
} else {
++i;
}
}
}
void
Searchpath::remove_directories (const vector<std::string>& paths)
{
for(vector<std::string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
remove_directory (*i);
}
}
void
Searchpath::add_directory (const std::string& directory_path)
{
@ -115,6 +139,21 @@ Searchpath::operator+ (const Searchpath& spath)
return *this;
}
Searchpath&
Searchpath::operator-= (const Searchpath& spath)
{
remove_directories (spath);
return *this;
}
Searchpath&
Searchpath::operator-= (const std::string& directory_path)
{
remove_directory (directory_path);
return *this;
}
Searchpath&
Searchpath::add_subdirectory_to_paths (const string& subdir)
{