--- a/backend/src/main/java/org/dive4elements/river/importer/parsers/PRFParser.java	Wed May 08 13:16:29 2013 +0200
+++ b/backend/src/main/java/org/dive4elements/river/importer/parsers/PRFParser.java	Wed May 08 14:58:16 2013 +0200
@@ -82,6 +82,12 @@
             secondShift = Math.pow(10, secondFractionPlaces);
         }
 
+        /**
+         * @param kmData where data points will be added to.
+         * @param line Line to parse.
+         * @return -1 at invalid lines, 1 if maxRepetitions values have been
+         *         read, 0 otherwise.
+         */
         public int extractData(String line, List<XY> kmData) {
             int L = line.length();
             if (L <= deleteChars) {
@@ -92,7 +98,7 @@
 
             boolean debug = log.isDebugEnabled();
 
-
+            // Repetitions are values per line ( ... 10.0 12.5 15.3 ... )
             int rep = 0;
             for (;rep < maxRepetitions; ++rep) {
                 if (pos >= L || pos + firstIntegerPlaces >= L) {
@@ -103,7 +109,7 @@
 
                 String second = line.substring(
                     pos + firstIntegerPlaces,
-                    Math.min(L, pos+firstIntegerPlaces+secondIntegerPlaces));
+                    Math.min(L, pos + firstIntegerPlaces + secondIntegerPlaces));
 
                 double x, y;
                 try {
@@ -180,6 +186,7 @@
         }
     } // class KMFormat
 
+    /** Mapping stations (km) to measured points. */
     protected Map<Double, List<XY>> data;
 
     protected Integer year;