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Top Forums Shell Programming and Scripting Control cursor position also at bottom of window Post 303043740 by Ralph on Wednesday 5th of February 2020 09:22:13 AM
Old 02-05-2020
Quote:
Originally Posted by RudiC
Mind to share your final version here?

It's still the same as what I posted earlier. A bit longer than it has to be because of all the ifs and comments. I like the way you used parameter expansion in your version, but your version didn't scroll right on my system - an ordinary terminal emulator running Bash 5 on a Debian Linux.


Here my currently final version again:
Code:
function askYesOrNo {
        printf "\e[1;31;47m$1 [Y|n]\e[0m "      # print $1 in color
        printf "\e[s"                           # save cursor x-pos

        while true ; do
                read answer
                if [ -z "$answer" ] ; then
                        return 0
                elif [ "$(tr -d "NnYy" <<< $answer)" != "$answer" ] ; then
                        break
                fi

                # How many lines in this window?
                LINES=$(tput lines)

                # find cursor y-position ( line number )
                printf "\e[6n" ; read -sd R POS
                CURPOS=${POS#*[}; CUR_Y=${CURPOS%;*}

                if [ "$CUR_Y" -eq "$LINES" ] ; then
#                       printf "\e[u\e[1A\e[K" 
                        printf "\e[u\eM\e[K"
                else
                        printf "\e[u\e[K"
                fi
        done
        if [ "${answer^}" == "Y" ]; then
                return 0
        fi
        return 1
}

for (( i = 100, max = 110; i <= max; i++ )) ; do
        printf " %d\n" $i
        if [ $i -eq $max ] ; then
                if askYesOrNo "Do you wish to continue?" ; then
                        (( max += 10 ))
                fi
        fi
done

Only complaint now is that when the question is asked at the very bottom of the window the cursor still jumps to the next line, the window scrolls but the cursor jumps back to the end of the question. That can be avoided by using read -n 1 - as wisecracker suggested - but I like to use the Enter key to confirm.


Does it run the same way on your system?

Last edited by Ralph; 02-05-2020 at 10:24 AM.. Reason: typos
 

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TILDA(1)							   User Commands							  TILDA(1)

NAME
tilda - first person shooter console likeness terminal DESCRIPTION
Tilda is a terminal emulator taking after the likeness of many classic terminals from first person shooter games, Quake, Doom and Half-Life (to name a few), where the terminal has no border and is hidden from the desktop until a key is pressed. Usage: tilda [OPTION...] Help Options: -?, --help Show help options --help-all Show all help options --help-gtk Show GTK+ Options Application Options: -a, --antialias Use Antialiased Fonts -b, --background-color Set the background color -c, --command Run a command at startup -h, --hidden Start Tilda hidden -f, --font Set the font to the following string -l, --lines Scrollback Lines -s, --scrollbar Use Scrollbar -t, --transparency Opaqueness: 0-100% -v, --version Print the version, then exit -w, --working-dir Set Initial Working Directory -x, --x-pos X Position -y, --y-pos Y Position -B, --image Set Background Image -C, --config Show Configuration Wizard --display=DISPLAY X display to use COPYRIGHT
Copyright (C) 2005,2008 Tristan Sloughter (sloutri@iit.edu) Copyright (C) 2005,2008 Ira W. Snyder (tilda@irasnyder.com) Copyright (C) 2007,2008 Ken Dreyer (kdreyer@chicagolug.org) This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. See the file COPYING for details. SEE ALSO
The full documentation for tilda is maintained as a Texinfo manual. If the info and tilda programs are properly installed at your site, the command info tilda should give you access to the complete manual. BUGS
Please report it using reportbug tilda AUTHOR
Davide Truffa <davide@catoblepa.org> wrote this manpage for inclusion on the Debian Project but it could be used for others. tilda 0.09.6 June 2008 TILDA(1)
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