From bce4d934a47023096e74ac39ed4d3a2cd99bc8e4 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sat, 15 Apr 2017 14:21:20 +0200
Subject: Abstract stack prepending

---
 source/app.d        |  2 +-
 source/base/stack.d | 12 ++++++++----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/source/app.d b/source/app.d
index 0f17afc..35b2d88 100644
--- a/source/app.d
+++ b/source/app.d
@@ -38,7 +38,7 @@ void process(string value) {
 			if ( result.front == current ) {
 				stack.push(current);
 			} else {
-				buffer.insertFront(result[]);
+				buffer.push(result);
 			}
 		}
 	}
diff --git a/source/base/stack.d b/source/base/stack.d
index e42ff12..c6e1a59 100644
--- a/source/base/stack.d
+++ b/source/base/stack.d
@@ -32,13 +32,17 @@ Token pop(ref Stack!Token stack) {
 	return token;
 }
 
-void push(ref Stack!Token stack, Token token) {
-	stack.insertFront(token);
-}
-
 template push(T)
 if ( is(T == int) || is(T == bool) || is (T == string) ) {
 	void push(ref Stack!Token stack, T value) {
 		stack.push(Token(value));
 	}
 }
+
+void push(ref Stack!Token stack, Token token) {
+	stack.insertFront(token);
+}
+
+void push(ref Stack!Token stack, Stack!Token prefix) {
+	stack.insertFront(prefix[]);
+}
-- 
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