Add 2019/yang/try.sh, update bugs.md + formatting

The try.sh script checks that the terminal size is large enough for two
files, the prog.c (last check) and sample_input.txt (provided by the
author). If it's too small for either it exits as it can't work. The
added ioccc.txt is very short in column and rows so that should not be a
problem (except in very extreme cases?).

The sample_input.txt file had trailing newlines removed because it
showed differences in output otherwise (and shouldn't).

The bugs.md was updated - add INABIAF for this entry.

Format/typo check README.md file.

2019/yang/try.sh

@@ -0,0 +1,168 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2019/yang
+#
+
+# 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="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+read -r -n 1 -p "Press any key to scramble ioccc.txt into five files: "
+echo 1>&2
+echo "$ ./prog ioccc.txt a b c d e" 1>&2
+./prog ioccc.txt a b c d e
+
+read -r -n 1 -p "Press any key to unscramble part a with cat: "
+clear
+cat a
+
+read -r -n 1 -p "Press any key to unscramble part b with cat: "
+clear
+cat b
+
+read -r -n 1 -p "Press any key to unscramble part c with cat: "
+clear
+cat c
+
+read -r -n 1 -p "Press any key to unscramble part d with cat: "
+clear
+cat d
+
+read -r -n 1 -p "Press any key to unscramble part e with cat: "
+clear
+cat e
+
+echo "$ cat a b c d e | ./prog" 1>&2
+read -r -n 1 -p "Press any key to unscramble all parts: "
+echo 1>&2
+cat a b c d e | ./prog
+echo 1>&2
+
+echo "$ cat a b c d e | ./prog | diff - ioccc.txt" 1>&2
+read -r -n 1 -p "Press any key to continue: "
+echo 1>&2
+cat a b c d e | ./prog | diff -s - ioccc.txt
+
+LINES="$(tput lines)"
+COLS="$(tput cols)"
+if [[ "$COLS" -lt 75 || "$LINES" -lt 13 ]]; then
+    # if screen size < 75 x 13 then exit
+    exit 0
+fi
+
+read -r -n 1 -p "Press any key to scramble sample_input.txt into five files: "
+echo 1>&2
+echo "$ ./prog sample_input.txt a b c d e" 1>&2
+./prog sample_input.txt a b c d e
+
+read -r -n 1 -p "Press any key to unscramble part a with cat: "
+clear
+cat a
+
+read -r -n 1 -p "Press any key to unscramble part b with cat: "
+clear
+cat b
+
+read -r -n 1 -p "Press any key to unscramble part c with cat: "
+clear
+cat c
+
+read -r -n 1 -p "Press any key to unscramble part d with cat: "
+clear
+cat d
+
+read -r -n 1 -p "Press any key to unscramble part e with cat: "
+clear
+cat e
+
+echo "$ cat a b c d e | ./prog" 1>&2
+read -r -n 1 -p "Press any key to unscramble all parts: "
+echo 1>&2
+cat a b c d e | ./prog
+echo 1>&2
+
+echo "$ cat a b c d e | ./prog | diff - sample_input.txt" 1>&2
+read -r -n 1 -p "Press any key to continue: "
+echo 1>&2
+cat a b c d e | ./prog | diff -s - sample_input.txt
+
+
+if [[ "$COLS" -lt 80 || "$LINES" -lt 25 ]]; then
+    # if screen size < 80 x 25 then exit
+    exit 0
+fi
+
+read -r -n 1 -p "Press any key to run: cat prog.c: "
+echo 1>&2
+cat prog.c
+
+echo 1>&2
+read -r -n 1 -p "Press any key to scramble prog.c into five files: "
+echo 1>&2
+echo "$ ./prog prog.c a b c d e" 1>&2
+./prog prog.c a b c d e
+
+read -r -n 1 -p "Press any key to unscramble part a with cat: "
+clear
+cat a
+
+read -r -n 1 -p "Press any key to unscramble part b with cat: "
+clear
+cat b
+
+read -r -n 1 -p "Press any key to unscramble part c with cat: "
+clear
+cat c
+
+read -r -n 1 -p "Press any key to unscramble part d with cat: "
+clear
+cat d
+
+read -r -n 1 -p "Press any key to unscramble part e with cat: "
+clear
+cat e
+
+echo "$ cat a b c d e | ./prog" 1>&2
+read -r -n 1 -p "Press any key to unscramble all parts: "
+echo 1>&2
+cat a b c d e | ./prog
+echo 1>&2
+
+echo "$ cat a b c d e | ./prog | diff - prog.c" 1>&2
+read -r -n 1 -p "Press any key to continue: "
+echo 1>&2
+cat a b c d e | ./prog | diff -s - prog.c
+
+# For the next three we have to see if ruby is installed
+RUBY="$(type -P ruby)"
+
+if [[ -n "$RUBY" ]]; then
+    read -r -p "Do you want to see the slow scrambling: ./prog prog.c | ruby prog.c (Y/N)? "
+    if [[ "$REPLY" == "y" || "$REPLY" == "Y" ]]; then
+	echo "This may take a while, hit ctrl-c to exit script." 1>&2
+	echo 1>&2
+	./prog prog.c | ruby prog.c
+    fi
+
+    read -r -p "Do you want to see the slow scrambling: ./prog violet.c | ruby prog.c (Y/N)? "
+    if [[ "$REPLY" == "y" || "$REPLY" == "Y" ]]; then
+	echo "This may take a while, hit ctrl-c to exit script." 1>&2
+	echo 1>&2
+	./prog violet.c | ruby prog.c
+    fi
+
+    read -r -p "Do you want to see the slow scrambling: ./prog violet.c | ruby violet.c (Y/N)? "
+    if [[ "$REPLY" == "y" || "$REPLY" == "Y" ]]; then
+	echo "This may take a while, hit ctrl-c to exit script." 1>&2
+	echo 1>&2
+	./prog violet.c | ruby violet.c
+    fi
+fi