commit 1fcd7bc89df0dd6b8e7e21075adb242ac28fffc5
Author: Skylar Hill <stellarskylark@posteo.net>
Date:   Fri Dec 1 21:15:56 2023 -0600

    Add Day 1

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9a26890
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*input
+*test
diff --git a/day1 b/day1
new file mode 100755
index 0000000..0270f10
--- /dev/null
+++ b/day1
@@ -0,0 +1,31 @@
+#!/usr/bin/fish
+
+cat $argv[1] \
+    # there's definitely a more elegant way to do this,
+    # but maybe not with sed, and probably not readably
+    | sed -E 's/oneight/18/g;
+              s/twone/21/g;
+              s/threeight/38/g;
+              s/fiveight/58/g;
+              s/sevenine/79/g;
+              s/eightwo/82/g;
+              s/eighthree/83/g;
+              s/nineight/98/g;
+              s/zerone/01/g;
+              s/one/1/g;
+              s/two/2/g;
+              s/three/3/g;
+              s/four/4/g;
+              s/five/5/g;
+              s/six/6/g;
+              s/seven/7/g;
+              s/eight/8/g;
+              s/nine/9/g;
+              s/zero/0/g;
+              s/[a-zA-Z]//g;
+              s/([0-9]{1})[0-9]*([0-9]{1})/\1\2/g
+              s/^([0-9]{1})$/\1\1/g' \
+    | tr '\n' '+' \
+    | sed 's/+$/\n/g;
+           s/^+//g' \
+    | bc