Implement a lexer.

src/org/nwapw/abacus/lexing/pattern/Match.java

@@ -0,0 +1,26 @@
+package org.nwapw.abacus.lexing.pattern;
+
+public class Match<T> {
+
+    private int from;
+    private int to;
+    private T type;
+
+    public Match(int from, int to, T type){
+        this.from = from;
+        this.to = to;
+        this.type = type;
+    }
+
+    public int getFrom() {
+        return from;
+    }
+
+    public int getTo() {
+        return to;
+    }
+
+    public T getType() {
+        return type;
+    }
+}