1 files changed, 53 insertions, 0 deletions
diff --git a/src/jcgp/backend/parsers/FunctionParser.java b/src/jcgp/backend/parsers/FunctionParser.java
new file mode 100644
index 0000000..6d6c73b
--- /dev/null
+++ b/src/jcgp/backend/parsers/FunctionParser.java
@@ -0,0 +1,53 @@
+package jcgp.backend.parsers;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.util.Scanner;
+
+import jcgp.backend.function.FunctionSet;
+import jcgp.backend.modules.problem.Problem;
+import jcgp.backend.resources.ModifiableResources;
+
+/**
+ * Parses the functions from a .par file. 
+ * Functions marked with a 1 will be enabled, 
+ * and those marked with 0 are disabled.
+ * 
+ * @author Eduardo Pedroni
+ *
+ */
+public abstract class FunctionParser {
+
+	public static void parseFunctions(File file, Problem problem, ModifiableResources resources) {
+		
+		FileReader fr;
+		try {
+			fr = new FileReader(file);
+		} catch (FileNotFoundException e) {
+			resources.println("[Parser] Error: could not find " + file.getAbsolutePath() + ".");
+			return;
+		}
+		
+		Scanner in = new Scanner(fr);
+		FunctionSet functionSet = problem.getFunctionSet();
+		resources.println("[Parser] Parsing file: " + file.getAbsolutePath() + "...");
+		
+		while (in.hasNextLine()) {
+			String line = in.nextLine();
+			if (line.substring(line.length() - 1).matches("[0-9]")) {
+				String[] splitString = line.split("[^0-9]+");
+				int functionIndex = Integer.parseInt(splitString[splitString.length - 1]);
+				if (Integer.parseInt(splitString[0]) != 0 && !functionSet.isEnabled(functionSet.getFunction(functionIndex))) {
+					functionSet.enableFunction(functionIndex);
+					resources.println("[Parser] Enabled function: " + functionSet.getFunction(functionIndex).getName() + ".");
+				} else if (Integer.parseInt(splitString[0]) == 0 && functionSet.isEnabled(functionSet.getFunction(functionIndex))) {
+					functionSet.disableFunction(functionIndex);
+					resources.println("[Parser] Disabled function: " + functionSet.getFunction(functionIndex).getName() + ".");
+				}
+			}
+		}
+		in.close();
+		resources.println("[Parser] Finished parsing functions.");
+	}
+}