From 92dac816e6e7e1619316a12c9bc9f5627be8b0a5 Mon Sep 17 00:00:00 2001
From: Cody Boone Ferguson <53008573+xexyl@users.noreply.github.com>
Date: Wed, 21 Feb 2024 09:26:14 -0800
Subject: [PATCH] Add 1995/leo/try.sh and update bugs.md

There appears to be a bug where the program blocks. In one case another
command makes it work but the judges remarks suggest one way and it does
not. The other command does not seem to work at all, even if used like
the workaround with the first one.

Updated make clobber to remove foo.ps.

Updated .gitignore.
---
 1995/leo/.gitignore |  1 +
 1995/leo/Makefile   |  2 +-
 1995/leo/README.md  | 25 +++++++++++++------------
 1995/leo/try.sh     | 34 ++++++++++++++++++++++++++++++++++
 bugs.md             | 30 ++++++++++++++++++++++++++++++
 thanks-for-help.md  |  4 +++-
 6 files changed, 82 insertions(+), 14 deletions(-)
 create mode 100755 1995/leo/try.sh

diff --git a/1995/leo/.gitignore b/1995/leo/.gitignore
index 092bef7c4..8714ca785 100644
--- a/1995/leo/.gitignore
+++ b/1995/leo/.gitignore
@@ -1,6 +1,7 @@
 #
 # sort with: ../../bin/sgi
 *.dSYM
+foo.ps
 indent
 indent.c
 indent.o
diff --git a/1995/leo/Makefile b/1995/leo/Makefile
index 716641ee8..a53424aca 100644
--- a/1995/leo/Makefile
+++ b/1995/leo/Makefile
@@ -203,7 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
-	${RM} -rf *.dSYM
+	${RM} -rf *.dSYM foo.ps
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/leo/README.md b/1995/leo/README.md
index a4fe5ba43..fcf4f2ff8 100644
--- a/1995/leo/README.md
+++ b/1995/leo/README.md
@@ -5,6 +5,18 @@ make all
 ```
 
 
+### Bugs and (Mis)features:
+
+The current status of this entry is:
+
+```
+STATUS: known bug - please help us fix
+```
+
+For more detailed information see [1995 leo in bugs.md](/bugs.md#1995-leo).
+
+
+
 ## To use:
 
 ```sh
@@ -17,20 +29,9 @@ See the author's information below on these details.
 ## Try:
 
 ```sh
-./leo 1 | cat - /dev/tty | gs -
-
-./leo 37 80 | cat - /dev/tty | gs -
+./try.sh
 ```
 
-If you don't have gs or an equivalent postscript viewer, try:
-
-```sh
-echo "" | ./leo 1 > foo.ps
-```
-
-and send foo.ps to your local postscript printer or open it in an appropriate
-application (e.g. GIMP).
-
 
 ## Judges' remarks:
 
diff --git a/1995/leo/try.sh b/1995/leo/try.sh
new file mode 100755
index 000000000..ea6cb8e70
--- /dev/null
+++ b/1995/leo/try.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC entry 1995/leo
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+
+# try finding gs
+GS="$(type -P gs)"
+
+rm -f foo.ps
+read -r -n 1 -p "Press any key to run: ./leo 1 | cat - > foo.ps: "
+echo "" | ./leo 1 | cat - > foo.ps
+echo 1>&2
+# if they have gs open foo.ps with it
+if [[ -n "$GS" ]]; then
+    read -r -n 1 -p "Press any key to run: $GS foo.ps: "
+    echo 1>&2
+    "$GS" foo.ps
+else
+    echo "Now send foo.ps to your local postscript printer or open it in an appropriate" 1>&2
+    echo "application (e.g. GIMP)." 1>&2
+fi
diff --git a/bugs.md b/bugs.md
index 6751aae46..8fec0c272 100644
--- a/bugs.md
+++ b/bugs.md
@@ -1491,6 +1491,36 @@ supposed to be printed again and one is supposed to press a key as at that point
 it calls `getchar()` via the pointer `m`. So this is a feature not a bug.
 
 
+## 1995 leo
+
+### STATUS: known bug - please help us fix
+### Source code: [1995/leo/leo.c](1995/leo/leo.c)
+### Information: [1995/leo/README.md](1995/leo/README.md)
+
+The judges suggested that the following commands should result in output:
+
+
+```sh
+./leo 1 | cat - /dev/tty | gs -
+
+./leo 37 80 | cat - /dev/tty | gs -
+```
+
+The first one can work if one does instead:
+
+```sh
+echo "" | ./leo 1 > foo.ps
+gs foo.ps
+```
+
+but it is supposed to work in the pipeline as is. The second one does not appear
+to work at all even if one redirects to a file (like the workaround for the
+first) as it appears to just block.
+
+It is not known if this is platform specific but this was observed in macOS and
+it would be good if it was fixed.
+
+
 ## 1995 savastio
 
 ### STATUS: INABIAF - please **DO NOT** fix
diff --git a/thanks-for-help.md b/thanks-for-help.md
index 7ee2aaefa..226bf0403 100644
--- a/thanks-for-help.md
+++ b/thanks-for-help.md
@@ -2061,7 +2061,9 @@ added.
 
 ## <a name="1995_leo"></a>[1995/leo](/1995/leo/leo.c) ([README.md](/1995/leo/README.md]))
 
-At our change in how to deal with spoilers, [Cody](#cody) uudecoded the spoiler provided
+[Cody](#cody) added the [try.sh](/1995/leo/try.sh) script.
+
+At our change in how to deal with spoilers, Cody also uudecoded the spoiler provided
 by the author, putting it in [spoiler1.md](/1995/leo/spoiler1.md).