From deeb9792ba4b6a8df68017c0a671554a6b87065b Mon Sep 17 00:00:00 2001
From: Connor Olding <cloningdonor@gmail.com>
Date: Tue, 7 Jun 2022 07:13:13 +0200
Subject: [PATCH] add wat

---
 wat/README.md     |  1 +
 wat/set-e.sh      | 31 +++++++++++++++++++++++++++++++
 wat/upperlower.py | 15 +++++++++++++++
 3 files changed, 47 insertions(+)
 create mode 100644 wat/README.md
 create mode 100644 wat/set-e.sh
 create mode 100644 wat/upperlower.py

diff --git a/wat/README.md b/wat/README.md
new file mode 100644
index 0000000..4f6f9b1
--- /dev/null
+++ b/wat/README.md
@@ -0,0 +1 @@
+observe surprising things about programming languages.
diff --git a/wat/set-e.sh b/wat/set-e.sh
new file mode 100644
index 0000000..995f165
--- /dev/null
+++ b/wat/set-e.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env sh
+# run this shell script with one of these shells:
+# zsh, bash, dash, or (busybox) ash.
+set -e
+
+# false # this exits the shell immediately.
+# false || false # this exits as well.
+false && true # wait, what?
+! true # huh?
+
+fun() {
+    false # this *should* cause, the shell to exit, right...?
+    [ "$1" = 0 ]
+}
+
+if fun 0; then echo wat 1; fi
+if false; then echo nope; elif fun 0; then echo wat 2; fi
+
+i=0
+while fun $i; do i=1; done
+until fun $i; do i=0; done
+
+# ! fun 0 # this exits zsh, and only zsh.
+# (! (! fun 0)) # this exits bash, and only bash.
+fun 0 && echo wat 3 || echo nope
+fun 1 && echo nope
+fun 0 || echo nope
+
+echo aborting...
+fun 0 # let's get out of here.
+echo at least that works.
diff --git a/wat/upperlower.py b/wat/upperlower.py
new file mode 100644
index 0000000..5f6db51
--- /dev/null
+++ b/wat/upperlower.py
@@ -0,0 +1,15 @@
+a = "ABCDEFGHIJKLMNOPQRSTUVWXYZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞŸŠŒŽ"
+b = "abcdefghijklmnopqrstuvwxyzàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿšœž"
+
+# try this for fun, if breaking things is fun to you:
+a += "ß"
+b += "ß"
+
+print(a)
+print(b.upper())
+print(a.lower())
+print(b)
+
+print("TEST:")
+print(a == b.upper())
+print(b == a.lower())