Added an example fancy code file for testing the lexer.

Author: bakkdoor

example_file.fy

@@ -0,0 +1,112 @@
+class Person {
+  def initialize: @name age: @age {
+    """
+    This is a docstring for the Person constructor method.
+    Docstrings usually are multi-line, like this one.
+    """
+  }
+
+  def to_s {
+    # return is optional in this case, but we use it nontheless
+    return "Person with name: #{@name inspect} and age: #{@age}"
+  }
+}
+
+class PersonWithCity : Person {
+  def initialize: @name age: @age city: @city {
+  }
+
+  def to_s {
+    super to_s ++ " living in: #{@city inspect}"
+  }
+}
+
+p1 = Person new: "Johnny Jackson" age: 42
+p1 println # prints: Person with name: "Johnny Jackson" and age: 42
+
+p2 = PersonWithCity new: "John Appleseed" age: 55 city: "New York"
+p2 println # prints: Person with name: "John Appleseed" age: 55 living in: "New York"
+
+array = [1,2,3, "foo", 'bar]
+hash = <['foo => "bar", 'bar => 42]>
+tuple = (1,2,"hello","world")
+block = |x, y| {
+  x + y println
+}
+block call: [4,2]
+
+0b010101 & 0b00101 to_s: 2 . println
+0xFF & 0xAB to_s: 16 . println
+0o77 > 0o76 println
+123.123 + 0.222 println
+
+x = 0
+try {
+  10 / x println
+} catch ZeroDivisionError => e {
+  x = 3
+  retry
+} finally {
+  "Finally, done!" println
+}
+
+def a_method: arg1 with_default_arg: arg2 (42) {
+  arg1 * arg2 println
+}
+
+a_method: 42
+a_method: 42 with_default_arg: 85
+
+class ClassWithClassMethod {
+  def self class_method1 {
+    'works
+  }
+
+  def ClassWithClassMethod class_method2 {
+    'this_as_well
+  }
+}
+
+ClassWithClassMethod class_method1 println
+ClassWithClassMethod class_method2 println
+
+def another_method: block {
+  1 upto: 10 . map: block
+}
+
+# local returns
+another_method: |x| { return_local x * 2 } . inspect println
+
+
+# pattern matching:
+class PatternMatching {
+  def match_it: obj {
+    match obj {
+      case String -> "It's a String!" println
+      case Fixnum -> "It's a Number!" println
+      case _ -> "Aything else!" println
+    }
+  }
+
+  def match_with_extract: str {
+    match str {
+      # m holds the MatchData object, m1 & m2 the first and second matches
+      case /^(.*) : (.*)$/ -> |m, m1, m2|
+        "First match: #{m1}" println
+        "Second match: #{m2}" println
+    }
+  }
+}
+
+pm = PatternMatching new
+pm match_it: "foo"
+pm match_it: 42
+pm match_it: 'foo
+
+pm match_with_extract: "Hello : World!"
+
+
+# calling ruby methods:
+[3, 2, 1] reverse() each() |a| { puts(a) }
+"Hello" sub("ll", "y") println
+[3, 2, 1] map() |a| { a * 2 } inject(0) |s i| { s + i } println