Add 1993/dgibson/try.sh

1993/dgibson/README.md

@@ -19,7 +19,7 @@ where:
 ### Try:
 
 ```sh
-./dgibson.sh dgibson.data3
+./try.sh
 ```
 
 
@@ -38,7 +38,8 @@ There are a number of data files available:
 - [dgibson.data5](dgibson.data5)
 
 For [dgibson.data5](dgibson.data5) you will need a large screen, lots of virtual
-memory and lots of time!
+memory and lots of time! The [try.sh](try.sh) script will run
+[dgibson.sh](dgibson.sh) on all the data files.
 
 Good luck trying to use a debugger on this entry!  Life is not
 always pretty.

1993/dgibson/dgibson.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# dgibson.sh - run the dgibson entry
+# dgibson.sh - run the IOCCC winner 1993/dgibson
 #
 # usage:
 #	dgibson.sh [data_file]
@@ -45,7 +45,15 @@ fi
 # build a new copy of the program
 #
 rm -f dgibson
-make dgibson
+# 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
+
 
 # form the next generation
 #

1993/dgibson/try.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 1993/dgibson
+#
+
+# we make use of the script dgibson.sh so we don't need to compile it. In any
+# event that script rebuilds the program.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+for f in dgibson.data[1-5]; do
+    read -r -n 1 -p "Press any key to run: CC=$CC ./dgibson.sh $f: "
+    echo 1>&2
+    CC="$CC" ./dgibson.sh "$f"
+    echo 1>&2
+done