From d7193d06effb8ec2cecebb281d6fd8b306b1658e Mon Sep 17 00:00:00 2001
From: Dylan Araps <dylan.araps@gmail.com>
Date: Thu, 14 Jun 2018 17:50:46 +1000
Subject: [PATCH] docs: update

---
 .travis.yml |  7 +++++++
 README.md   | 12 ++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)
 create mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..c3d52bf
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: bash
+
+os:
+    - linux
+
+script:
+    - shellcheck <(awk '/```sh/{f=1;next}/```/{f=0}f' README.md)
diff --git a/README.md b/README.md
index fcf2d8a..7dea64c 100644
--- a/README.md
+++ b/README.md
@@ -243,7 +243,11 @@ again.
 
 ```sh
 arr=(a b c d)
-printf '%s\n' "${arr[$((i==${#arr[@]}-1?i=0:++i))]}"
+
+cycle() {
+    printf '%s ' "${arr[${i:=0}]}"
+    ((i=i>=${#arr[@]}-1?0:++i))
+}
 ```
 
 
@@ -253,7 +257,11 @@ This works the same as above, this is just a different use case.
 
 ```sh
 arr=(true false)
-printf '%s\n' "${arr[$((i==${#arr[@]}-1?i=0:++i))]}"
+
+cycle() {
+    printf '%s ' "${arr[${i:=0}]}"
+    ((i=i>=${#arr[@]}-1?0:++i))
+}
 ```