311 lines
8.4 KiB
Bash
Executable File
311 lines
8.4 KiB
Bash
Executable File
#!/bin/bash
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VERSION=20150122
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function display_self {
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$0 $0
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exit 0
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}
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function exit_reset {
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setterm -cursor on
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exit
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}
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function short_help() {
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echo MarkSlider, the markdown syntax slideshow engine
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echo Start without arguments to view the demo
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exit
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}
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[ -z "$1" ] && display_self
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[ "$1" = "-h" ] && short_help
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[ -f "$1" ] || {
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echo Cannot find file: $1
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exit 1
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}
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function display_slide {
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j=$(( $2 + 1 ))
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echo -en "$CLS"
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awk 'match($0,/^# /){
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c++;
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print c $0;
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}
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!/^# /{
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print $0;
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}
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' "$1" | sed -n '/^'$2'# /,/^'$j'# /p' | grep -v "^$j# " \
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| sed -e 's,^'$i'\(# .*\),'$H'\1'$Z',' \
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-e ${HROW}'s/^ />/' \
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-e ${HROW}'s/^\(.*\)/'$H$Y'\1'$Z'/' \
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| eval sed $REGEX
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}
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function slide_exec {
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# find executables in the slide
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j=$(( $2 + 1 ))
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#echo -en "$CLS"
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while read line
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do eval $line > /dev/null 2>&1 &
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done < <(
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awk 'match($0,/^# /){
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c++;
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print c $0;
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}
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!/^# /{
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print $0;
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}
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' "$1" | sed -n '/^'$2'# /,/^'$j'# /p' | grep "\&(.*)" | sed -e 's,[^\&]*\&( ,,' -e 's,)[^)]*,,' )
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# restore cursor position to bottom of slide
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echo -ne "${E}u"
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while read line
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do eval $line
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done < <(
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awk 'match($0,/^# /){
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c++;
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print c $0;
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}
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!/^# /{
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print $0;
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}
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' "$1" | sed -n '/^'$2'# /,/^'$j'# /p' | grep "\$(.*)" | sed -e 's,[^\$]*\$( ,,' -e 's, )[^)]*,,' )
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}
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setterm -cursor off
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trap 'reset;exit_reset' INT
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E='\x1b['
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H="${E}1m"
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Z="${E}0m"
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CLS="${E}2J${E}H"
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#list of text colors:
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BLACK="${E}30m"
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R="${E}1;31m"
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G="${E}1;32m"
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B="${E}1;34m"
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Y="${E}1;33m"
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M="${E}1;35m"
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C="${E}1;36m"
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W="${E}1;37m"
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r="${E}0;31m"
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g="${E}0;32m"
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b="${E}0;34m"
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y="${E}0;33m"
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m="${E}0;35m"
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c="${E}0;36m"
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w="${E}0;37m"
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#list of BG colors:
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BGR="${E}41m"
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BGG="${E}42m"
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BGB="${E}44m"
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BGY="${E}43m"
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BGM="${E}45m"
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BGC="${E}46m"
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BGW="${E}47m"
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CONF_LINE=( \${H} \${Z} \${R} \${G} \${B} \${Y} \${M} \${C} \${W}
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\${r} \${g} \${b} \${y} \${m} \${c} \${w}
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\${BLACK} \${BGR} \${BGG} \${BGB} \${BGY} \${BGM} \${BGC} \${BGW} )
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for (( r=0; r<${#CONF_LINE[@]}; r++ ));
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do value=CONF_LINE[$r]
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replace=$( eval echo ${!value} )
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REGEX="$REGEX -e 's/\(${CONF_LINE[$r]}\)/"${replace}"/g'"
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done
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#REGEX="$REGEX -e 's/^\$(\([^)]\{20\}\).*)/\$(\1...)/g'"
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#^ hide long commands
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#echo $REGEX
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#exit
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i=1
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MENU=1
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HROW=1
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while true
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do
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# print slide $i
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NO_SLIDES=$( grep -ce "^# " "$1" )
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SLIDE_CHARS=$(( ${#i} + ${#NO_SLIDES} +1 ))
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COLS=$(( $( tput cols ) - $SLIDE_CHARS ))
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LINES=$( tput lines )
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[ "$cmd" = "e" ] && read -N 1 foo
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display_slide "$1" $i
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# save cursor location
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echo -ne "${E}s"
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# ask for user input
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# 1 back, 2 forward, q exit, m menu
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echo -ne "${Z}${E}1;${COLS}H"
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[ -z "$MENU" ] || {
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echo -ne "${i}/${NO_SLIDES}"
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echo -ne "${E}1B${E}3D1:▶"
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echo -ne "${E}1B${E}3D2:◀"
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echo -ne "${E}1B${E}3Dq:x"
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echo -ne "${E}1B${E}3Dm:▲${E}4A"
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}
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[[ -z "$MARKSLIDER_AUTOEXEC" ]] || slide_exec "$1" $i
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read -s -N 1 cmd
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# Escape inputed if arrow keys used
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[ "$cmd" = "" ] && read -s -N 2 cmd
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case "$cmd" in
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2|"[D"|"[5")
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i=$(( $i - 1 ))
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[ $i -lt 1 ] && i=1
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HROW=1
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;;
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1|"[C"|"[6"|"")
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i=$(( $i + 1 ))
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[ $i -gt $NO_SLIDES ] && i=$NO_SLIDES
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HROW=1
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;;
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4|"[A")
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HROW=$(( $HROW - 1 ))
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[ $HROW -lt 1 ] && HROW=1
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;;
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3|"[B")
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HROW=$(( $HROW + 1 ))
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[ $HROW -gt $LINES ] && HROW=$LINES
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;;
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m)
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[ -z "$MENU" ] && {
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MENU=1
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} || {
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unset MENU
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}
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;;
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x|q)
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echo -ne "${E}1E"
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exit_reset
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;;
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e)
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slide_exec "$1" $i
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;;
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esac
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done
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done
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exit_reset
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"
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# Markdown Slide Presenter: MarkSlider
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* This tool prints a text file as slides,
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retaining the formatting. Consider
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using markdown syntax.
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* Syntax ref: http://daringfireball.net/projects/markdown/syntax
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* The only parsed syntax is the new slide syntax:
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A row starting with '# '
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## How to use ##
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* Give the markdown file as argument
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* Move to the next slide with key 1, arrow right, space..
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* Move to the previous slide with key 2, arrow left
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* Remote presentor USB dongles may work too.
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* Move a highlighter line with up/down arrows
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* Exit with q or x
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* Hide menu with m
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* The numbers on the right show the current
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and number of slides in this presentation
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# Hints: Tables
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* Create tables with "ncsv -m"
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Object Area Perimeter
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------- ----- ----------
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1 358 68.28
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2 444 77.36
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3 507 92.18
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4 1026 118.6
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5 539 84.18
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# Hints: Plots
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* Create plots with gnuplot:
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set term dumb 60 15 enhanced
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set parametric; set trange [0:10*pi]; set yrange[-5*pi:5*pi]
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set xrange[-10*pi:10*pi]; plot t*cos(t), t*sin(t)
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15 ++-----*-+---**--+--------+-------+**-----*-------++
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|+ ** + ** + *****t*cos(t), t*sin(t)*******+|
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| * ** *** *** ** * |
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10 ++ * ** *** ** ** * ++
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| ** * ** ******** ** * * |
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5 ++ * ** * *** ** * ** ** ++
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| * * * ** ** ** * * |
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0 ++ * * * * **** * * * * ++
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| * * * * * ** ** * * *
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| * * * * ** *** * ** ** *
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-5 ++ * * * ** ***** ** * * **
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| * ** * ** *** ** * *|
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-10 ++ ** * ** *** **** ** * *+
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| * ** ** ****** ** ** * |
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|+ * + * *** + *** ** * +|
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-15 ++----*--+--*----+-**-----+-----**+------*+----*--++
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-30 -20 -10 0 10 20 30
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$( gnuplot -e "set term dumb 60 15 enhanced; set parametric; set trange [0:10*pi]; set yrange[-2*pi:2*pi]; set xrange[-4*pi:4*pi]; plot t*cos(t), t*sin(-t);" )[1K
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# Hints: ${R}Co${Y}lo${G}rs
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* Use ANSI codes directly for colors, or shortcuts:
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${R}red: ${ [1DR}, ${G}green: ${ [1DG}, ${B}blue: ${ [1DB}${Z}
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Bright colors: R G B C M Y W
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Dark colors: r g b c m y BLACK
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${H}Bright modifier: ${ [1DH}, ex: ${Z}${y}yel${H}low ${Z}${ [1Dy}yel${ [1DH}low
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Background colors:${C}${BGM} bright cyan on magenta ${ [1DC}${ [1DBGM} ${Z}
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Background colors: BGR BGG BGB BGC BGM BGY BGW
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Reset colors with ${ [1DZ}
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# Hints: Presenting
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* Use a terminal with large font, perhaps 80 columns on screen
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* Fullscreen often with F11
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┌──────┐
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* Get creative with │Ascii!│
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└┬────┬┘
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* Run any command by pressing "e" on a slide with syntax:
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* "$ [1D( command )" to print the output
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* "& [1D( command )" run process in background
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&( xeyes )
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$( ls )
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[s$( echo You can hide commands too... )[1K[uHidden command
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* Commands are auto-run, if MARKSLIDER_AUTOEXEC=true
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${H}${R}NOTE: This setting is potentially dangerous, don't view anyones
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presentations but yours with the setting!${Z}
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# Hints: Other tools
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* Check out tools like:
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* toilet
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m " ""# m
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mm#mm mmm mmm # mmm mm#mm
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# #" "# # # #" # #
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# # # # # #"""" #
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"mm "#m#" mm#mm "mm "#mm" "mm
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* boxes
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_ ._ _ , _ ._
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(_ ' ( ` )_ .__)
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( ( ( ) `) ) _)
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(__ (_ (_ . _) _) ,__)
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`~~`\ ' . /`~~`
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,::: ; ; :::,
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':::::::::::::::'
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_jgs______/_ __ \__________
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| |
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| MarkSlider |
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|___________________________|
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# Hints: More tools
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* JPEG to ascii: jp2a
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MMMMMNNNNNMNkkk0MMWdll0MMMMMOc,,;cllc;,,
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MMMMNNNNNMNOkOXMMKolkNMMW0ocdOXWMMMMMMWX
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MMMNNNNNMNOkONMMkldNMMWx:dXMMMMWKOxxxOKW
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MMWNNNNMWOkkNMMxlxWMMK;oWMMMXoloOXNWNXOd
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MMNNNNWM0kkKMMOldMMM0,OMMMNclNMMMMM:WMMM
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MWNNNNMNkkOWMNllNMMN,xMMMN'KMMMMMMM NMMM
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MWNNNNMXkk0MM0ldMMMx,WMMM;kMMMMMMMW XMMM
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MWNNNWMKkk0MMOlxMMMl:MMMM.NMMMMMMMO.xMMM
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MWNNNNMXkk0MM0ldMMMx,WMMM;kMMMMMMN.; KMM
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MWNNNNMNkkOWMNllNMMN,xMMMN'KMMMMK..,. 0M
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MMNNNNWM0kkKMMOldMMM0,OMMMNclNMN:;NMW:;K
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MMWNNNNMWOkkNMMxlxWMMK;oWMMMXoloOXNWNXOd
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MMMNNNNNMNOkONMMkldNMMWx:dXMMMMWKOxxxOKW
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MMMMNNNNNMNOkOXMMKolkNMMW0ocdOXWMMMMMMWX
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MMMMMNNNNNMNkkkKMMWdll0MMMMMOc,,;cllc;,,
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