From d6300c4578d9444f8d698a1eb42a46f428e08743 Mon Sep 17 00:00:00 2001
From: Connor Olding <cloningdonor@gmail.com>
Date: Sun, 1 Aug 2021 19:34:45 -0700
Subject: [PATCH] make rot13 its own function, document

---
 home/-shrc |  1 -
 sh/rot13   | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 sh/rot13

diff --git a/home/-shrc b/home/-shrc
index 48edd38..28a4d5d 100644
--- a/home/-shrc
+++ b/home/-shrc
@@ -173,7 +173,6 @@ alias sortip="sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n" ### @- sort numerically
 alias jrep='grep -aPo "[\x{20}-\x{7E}\x{4E00}-\x{9FFF}\x{3040}-\x{30FF}]+"' ### @- extract strings comprised of basic ASCII or Japanese codepoints.
 alias bomb='uconv -f utf-8 -t utf-8 --add-signature' ### @- add a Byte-Order Mark to a file.
 alias cleanse='tr -cd "\11\12\15\40-\176"' ### @- strip unprintable and non-ASCII characters.
-alias rot13='tr "A-Za-z0-9" "N-ZA-Mn-za-m5-90-4"' ### @- rot13 with numbers rotated as well.
 alias unwrap='awk '\''BEGIN{RS="\n\n";FS="\n"}{for(i=1;i<=NF;i++)printf "%s ",$i;print "\n"}'\' ### @- join paragraphs into one line each.
 alias double='awk "{print;print}"' ### @- print every line twice. <br/> print every line twice.
 alias join2='paste -d" " - -' ### @- join every other line.
diff --git a/sh/rot13 b/sh/rot13
new file mode 100644
index 0000000..81e4ea8
--- /dev/null
+++ b/sh/rot13
@@ -0,0 +1,16 @@
+#!/usr/bin/env sh
+# YES_ZSH
+# YES_BASH
+# YES_DASH
+
+rot13() { ### @-
+    ### rot13 with numbers rotated as well.
+    ###
+    ### ```
+    ### $ rot13 <<< abc123
+    ### nop678
+    ### ```
+    tr -- A-Za-z0-9 N-ZA-Mn-za-m5-90-4
+}
+
+[ "${SOURCING:-0}" -gt 0 ] || rot13 "$@"