From 3c2e69d5d6432536c2d3cfe99cdabd31ac503abf Mon Sep 17 00:00:00 2001
From: Paul Campbell <pcampbell@kemitix.net>
Date: Wed, 29 Dec 2021 19:04:03 +0000
Subject: [PATCH] extract windowsSafe()

---
 src/main.zig | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index d6216c5..5e15d09 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -41,13 +41,21 @@ fn nextLine(reader: FileReader, buffer: []u8) !?[]const u8 {
         buffer,
         '\n',
     )) orelse return null;
-    // trim annoying windows-only carriage return character
+    return windowsSafe(line);
+}
+
+// trim annoying windows-only carriage return character
+fn windowsSafe(line: []u8) []u8 {
     if (os.tag == .windows) {
-        line = mem.trimRight(u8, line, "\r");
+        return mem.trimRight(u8, line, "\r");
     }
     return line;
 }
 
-test "basic test" {
-    try testing.expectEqual(10, 3 + 7);
+test "windowsSage strips carriage return on windows" {
+    if (os.tag == .windows) {
+        try testing.expectEqualSlices(u8, "line\n\r", "line\n");
+    } else {
+        try testing.expectEqualSlices(u8, "line\n\r", "line\n\r");
+    }
 }