feat(src/StringConsumer): Add higher order consumers, integer, binary operation and if keywords consumers HEAD main

Higher order consumers are called that way because they use other (base)
consumers in their logic. In a sense, the other consumers are parameters
to the higher order consumers.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/StringConsumer/BaseConsumers/IntegerConsumer.cl b/src/StringConsumer/BaseConsumers/IntegerConsumer.cl
new file mode 100644
index 0000000..5b4cd82
--- /dev/null
+++ b/src/StringConsumer/BaseConsumers/IntegerConsumer.cl
@@ -0,0 +1,21 @@
+class IntegerConsumer inherits IWordsConsumer {
+	init() : IStringConsumer {{
+		matched_words <- matched_words
+			.push("0")
+			.push("1")
+			.push("2")
+			.push("3")
+			.push("4")
+			.push("5")
+			.push("6")
+			.push("7")
+			.push("8")
+			.push("9")
+			;
+		self;
+	}};
+
+	token() : IToken {
+		new IntegerToken
+	};
+};