In order to be able to read arc grids produced by R, the headers are now read...

In order to be able to read arc grids produced by R, the headers are now read in a case insensitive manner

meteoio/IOUtils.cc

@@ -376,9 +376,8 @@ std::string getLogName() {
 }
 
 void readKeyValueHeader(std::map<std::string,std::string>& headermap,
-                                 std::istream& fin,
-                                 const size_t& linecount,
-                                 const std::string& delimiter)
+                        std::istream& fin, const size_t& linecount,
+                        const std::string& delimiter, const bool& keep_case)
 {
 	size_t linenr = 0;
 	std::string line;
@@ -392,7 +391,8 @@ void readKeyValueHeader(std::map<std::string,std::string>& headermap,
 			linenr++;
 			const bool result = readKeyValuePair(line, delimiter, key, value);
 			if(result) {
-				headermap[key] = value;
+				if(!keep_case) headermap[ strToLower(key) ] = value;
+				else headermap[key] = value;
 			} else { //  means if ((key == "") || (value==""))
 				std::ostringstream out;
 				out << "Invalid key value pair in line: " << linenr << " of header";

meteoio/IOUtils.h

@@ -207,7 +207,7 @@ namespace IOUtils {
 	void readKeyValueHeader(std::map<std::string, std::string>& headermap,
 	                        std::istream& bs,
 	                        const size_t& linecount=1,
-	                        const std::string& delimiter="=");
+	                        const std::string& delimiter="=", const bool& keep_case=false);
 
 
 	/**

meteoio/plugins/ARCIO.cc

@@ -195,7 +195,7 @@ void ARCIO::read2DGrid_internal(Grid2DObject& grid_out, const std::string& full_
 		IOUtils::getValueForKey(header, "xllcorner", xllcorner);
 		IOUtils::getValueForKey(header, "yllcorner", yllcorner);
 		IOUtils::getValueForKey(header, "cellsize", cellsize);
-		IOUtils::getValueForKey(header, "NODATA_value", plugin_nodata);
+		IOUtils::getValueForKey(header, "nodata_value", plugin_nodata);
 
 		i_ncols = IOUtils::standardizeNodata(i_ncols, plugin_nodata);
 		i_nrows = IOUtils::standardizeNodata(i_nrows, plugin_nodata);