Further improvements to 2012/blakely/try.sh

The script now has quotes surrounding commands with '*'s in it and the
messages (of which some were added - only one existed before) were
improved when it comes to giving a warning that the next command might
take a bit of time. There are different messages depending on how slow
the commands are though this obviously cannot be even close to perfect.

Updated .gitignore.

2012/blakely/.gitignore

@@ -3,14 +3,8 @@
 blakely
 blakely.orig
 *.dSYM
-empty.gif
-flat.gif
+*.gif
 indent
 indent.c
 indent.o
-output.gif
-paraboloid.gif
-pic.gif
 prog.orig
-ripple.gif
-saddle.gif

2012/blakely/try.sh

@@ -15,9 +15,10 @@ 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 run: ./blakely "xx*yy*+" 64 > paraboloid.gif: "
+read -r -n 1 -p "Press any key to run: ./blakely 'xx*yy*+' 64 > paraboloid.gif: "
 echo 1>&2
-./blakely "xx*yy*+" 64 > paraboloid.gif
+echo "This might take a bit of time, please be patient." 1>&2
+./blakely 'xx*yy*+' 64 > paraboloid.gif
 echo 1>&2
 
 read -r -n 1 -p "Press any key to run: ./blakely 9 32 > empty.gif: "
@@ -25,19 +26,21 @@ echo 1>&2
 ./blakely 9 32 > empty.gif
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./blakely xy* 32 > saddle.gif: "
+read -r -n 1 -p "Press any key to run: ./blakely 'xy*' 32 > saddle.gif: "
 echo 1>&2
-./blakely xy* 32 > saddle.gif
+echo "This might take a little bit of time, please be patient." 1>&2
+./blakely 'xy*' 32 > saddle.gif
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./blakely xx*yy*1++d5*ct/ 64 > ripple.gif: "
+read -r -n 1 -p "Press any key to run: ./blakely 'xx*yy*1++d5*ct/' 64 > ripple.gif: "
 echo 1>&2
-./blakely xx*yy*1++d5*ct/ 64 > ripple.gif
+echo "This might take a bit of time, please be patient." 1>&2
+./blakely 'xx*yy*1++d5*ct/' 64 > ripple.gif
 echo 1>&2
 
 read -r -n 1 -p "Press any key to run: time ./blakely 0 250 > flat.gif: "
 echo 1>&2
-echo "This might take a bit of time, please be patient." 1>&2
+echo "This might take a while, please be patient." 1>&2
 time ./blakely 0 250 > flat.gif
 echo 1>&2