#include <config.h>
+#include "msg.hpp"
#include "file_system.hpp"
#include <string>
+#include <vector>
+#include <sstream>
namespace FileSystem
{
return filename.substr(p, filename.size()-p);
}
+std::string normalize(const std::string& filename)
+{
+ std::vector<std::string> path_stack;
+
+ const char* p = filename.c_str();
+
+ while(true) {
+ while(*p == '/') {
+ p++;
+ continue;
+ }
+
+ const char* pstart = p;
+ while(*p != '/' && *p != 0) {
+ ++p;
+ }
+
+ size_t len = p - pstart;
+ if(len == 0)
+ break;
+
+ std::string pathelem(pstart, p-pstart);
+ if(pathelem == ".")
+ continue;
+
+ if(pathelem == "..") {
+ if(path_stack.empty()) {
+
+ msg_warning << "Invalid '..' in path '" << filename << "'" << std::endl;
+ // push it into the result path so that the users sees his error...
+ path_stack.push_back(pathelem);
+ } else {
+ path_stack.pop_back();
+ }
+ } else {
+ path_stack.push_back(pathelem);
+ }
+ }
+
+ // construct path
+ std::ostringstream result;
+ for(std::vector<std::string>::iterator i = path_stack.begin();
+ i != path_stack.end(); ++i) {
+ result << '/' << *i;
+ }
+ if(path_stack.empty())
+ result << '/';
+
+ return result.str();
+}
+
}