From 70bf6dd96a8a65391c40553e24f82d1c4240567e Mon Sep 17 00:00:00 2001
From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com>
Date: Mon, 29 Jan 2024 09:10:44 -0800
Subject: [PATCH] Improve 2015/duble/try.sh

---
 2015/duble/README.md |  4 ++++
 2015/duble/try.sh    | 48 ++++++++++++++++++++++++++++++++++++++------
 2 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/2015/duble/README.md b/2015/duble/README.md
index 9c917b37f..26383a320 100644
--- a/2015/duble/README.md
+++ b/2015/duble/README.md
@@ -21,6 +21,10 @@ echo Some text | ./prog
 ./try.sh
 ```
 
+As the script says if you want to move to the next command at any point
+(lorem-ipsum.txt takes a while to print in particular) you may do so by hitting
+ctrl-c/sending intr.
+
 
 ## Alternate code:
 
diff --git a/2015/duble/try.sh b/2015/duble/try.sh
index a6d75794a..79fa46aa1 100755
--- a/2015/duble/try.sh
+++ b/2015/duble/try.sh
@@ -15,24 +15,60 @@ make CC="$CC" all >/dev/null || exit 1
 # clear screen after compilation so that only the entry is shown
 clear
 
-echo "$ echo \"Hello, world!\" | ./prog" 1>&2
+# set it so that when program is terminated through various signals we re-enable
+# the cursor
+trap "tput cnorm;echo" 0 1 2 3 15
+
+# temporarily disable cursor
+tput civis
+
+echo "If you wish to move to the next command during the output of the current" 1>&2
+echo "you may send ctrl-c/intr to do so. This might be especially useful if you" 1>&2
+echo "get tired of watching lorem-ipsum.txt." 1>&2
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: echo \"Hello, world!\" | ./prog: "
+echo 1>&2
 echo "Hello, world!" | ./prog
+echo 1>&2
 
-echo "$ echo \"IOCCC 2015\" | ./prog" 1>&2
+read -r -n 1 -p "Press any key to run: echo \"IOCCC 2015\" | ./prog: "
+echo 1>&2
 echo "IOCCC 2015" | ./prog
+echo 1>&2
 
-echo "$ DRAFT=1 ./prog < prog.c" 1>&2
+read -r -n 1 -p "Press any key to show prog.c (space = next page, q = quit): "
+echo 1>&2
+less -rEXFK prog.c
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: DRAFT=1 ./prog < prog.c: "
+echo 1>&2
 DRAFT=1 ./prog < prog.c
+echo 1>&2
 
-echo "$ ./prog < prog.c" 1>&2
+read -r -n 1 -p "Press any key to run: ./prog < prog.c: "
+echo 1>&2
 ./prog < prog.c
+echo 1>&2
 
-echo "$ ./prog < lorem-ipsum.txt" 1>&2
+read -r -n 1 -p "Press any key to show lorem-ipsum.txt (space = next page, q = quit): "
+echo 1>&2
+less -rEXFK lorem-ipsum.txt
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: ./prog < lorem-ipsum.txt: "
+echo 1>&2
 ./prog < lorem-ipsum.txt
+echo 1>&2
 
 echo "Type in text, hitting enter after each line." 1>&2
 echo "Watch the output each time and try again." 1>&2
 echo "Hit ctrl-c to exit." 1>&2
 echo 1>&2
-echo "$ ./prog" 1>&2
+read -r -n 1 -p "Press any key to start: "
+echo 1>&2
 ./prog
+
+# make sure to re-enable cursor
+tput cnorm