The IMPORT feature in Config now works properly on Windows. It is also now...

The IMPORT feature in Config now works properly on Windows. It is also now possible to call IMPORT_BEFORE from within a section (but it still needs to be the first key in a file). 

meteoio/Config.cc

@@ -205,7 +205,6 @@ void Config::parseLine(const unsigned int& linenr, std::vector<std::string> &imp
 
 	//if this is a section header, read it
 	if(line[0] == '[') {
-		accept_import_before = false; //this is not an import, so no further imports allowed
 		const size_t endpos = line.find_last_of(']');
 		if ((endpos == string::npos) || (endpos < 2) || (endpos != (line.length()-1))) {
 			stringstream tmp;
@@ -226,14 +225,14 @@ void Config::parseLine(const unsigned int& linenr, std::vector<std::string> &imp
 			if(!accept_import_before)
 				throw IOException("Error in \""+sourcename+"\": IMPORT_BEFORE key MUST occur before any other key!", AT);
 			if(std::find(imported.begin(), imported.end(), file_and_path)!=imported.end())
-				throw IOException("Can not import again \"" + value + "\": it has already been imported!", AT);
+				throw IOException("Can not import \"" + value + "\" again: it has already been imported!", AT);
 			parseFile(file_and_path);
 			return;
 		}
 		if(key=="IMPORT_AFTER") {
 			const std::string file_and_path = clean_import_path(value);
 			if(std::find(imported.begin(), imported.end(), file_and_path)!=imported.end())
-				throw IOException("Can not import again \"" + value + "\": it has already been imported!", AT);
+				throw IOException("Can not import \"" + value + "\" again: it has already been imported!", AT);
 			import_after.push_back(file_and_path);
 			return;
 		}

meteoio/IOUtils.cc

@@ -25,7 +25,8 @@
 #include <meteoio/MeteoData.h> // to avoid forward declaration hell
 
 #ifdef WIN32
-	#include <windows.h>
+	#include <windows.h>
+	#include "Shlwapi.h"
 	//removing two macros defined in windows.h
 	#undef max
 	#undef min
@@ -129,11 +130,13 @@ std::string cleanPath(const std::string& in_path, const bool& resolve)
 		std::replace(out_path.begin(), out_path.end(), '\\', '/');
 		return out_path;
 	} else {
-	#ifdef WIN32
-		char out_buff[MAX_PATH], in_buff = in_path.c_str();
-		char *ptr1 = out_buff, *ptr2 = in_buff;
-
-		std::string out_path = (PathCanonicalize(ptr1,ptr2))? ptr1 : in_path;
+	#ifdef WIN32
+        char **ptr = NULL;
+		char *out_buff = (char*)calloc(MAX_PATH, sizeof(char));
+
+        const DWORD status = GetFullPathName(in_path.c_str(), MAX_PATH, out_buff, ptr);
+		std::string out_path = (status!=0 && status<=MAX_PATH)? out_buff : in_path;
+		free(out_buff);
 		std::replace(out_path.begin(), out_path.end(), '\\', '/');
 		return out_path;
 	#else //POSIX