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, 15 insertions, 0 deletions

diff --git a/src/StringConsumer/BaseConsumers/KeywordsIfConsumer.cl b/src/StringConsumer/BaseConsumers/KeywordsIfConsumer.cl
new file mode 100644
index 0000000..9bd76e9
--- /dev/null
+++ b/src/StringConsumer/BaseConsumers/KeywordsIfConsumer.cl
@@ -0,0 +1,15 @@
+class KeywordsIfConsumer inherits IWordsConsumer {
+	init() : IStringConsumer {{
+		matched_words <- matched_words
+			.push("if")
+			.push("then")
+			.push("else")
+			.push("fi")
+			;
+		self;
+	}};
+
+	token() : IToken {
+		new KeywordToken
+	};
+};