explain regex

core/io/src/main/java/uk/ac/ebi/interpro/scan/io/model/HmmerModelParser.java

@@ -31,13 +31,12 @@ public class HmmerModelParser extends AbstractModelFileParser {
     /**
      * Matches the name line.
      * Group 1: Model name.
+     *
+     * NOTE: SFLD NAMEs may have '\$\d+' at end of string and this will be stripped off.
+     * This numbers are used to guarantee unique names.
      */
-    // private static final Pattern NAME_LINE = Pattern.compile("^NAME\\s+(.+)$");
-
     private static final Pattern NAME_LINE = Pattern.compile("^NAME\\s+(.*?)(?:\\$\\d+)?$");
 
-    // private static final Pattern NAME_LINE_SFLD = Pattern.compile("^NAME\\s+(.*?)(?:\\[\\d+\\])?$");
-
     /**
      * Matches the Description line.
      * Group 1: Description.

core/io/src/main/java/uk/ac/ebi/interpro/scan/io/superfamily/model/SuperFamilyModelParser.java

@@ -48,8 +48,8 @@ public class SuperFamilyModelParser extends AbstractModelFileParser {
     private static final Pattern DESC_LINE = Pattern.compile("^DESC\\s+(.+)$");
 
     /**
-     * Matches the signature accession line (but needs "SSF" prefix adding) and if there is a version number it will be
-     * stripped off (but doesn't really apply here).
+     * Matches the signature accession line (but needs "SSF" prefix adding) and if there is a 'version' number it will be
+     * stripped off. 'version' numbers are used to guarantee unique SuperFamily ACCs.
      */
     private static final Pattern ACCESSION_PATTERN = Pattern.compile("^ACC\\s+([A-Z0-9]+)\\.?.*$");