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filter out color codes in length calculation
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shlide
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shlide
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# Color definitions
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BLK="\e[30m"
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RED="\e[31m"
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GRN="\e[32m"
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YLW="\e[33m"
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BLU="\e[34m"
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PUR="\e[35m"
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CYN="\e[36m"
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BLK="\e[38;5;30m"
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RED="\e[38;5;31m"
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GRN="\e[38;5;32m"
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YLW="\e[38;5;33m"
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BLU="\e[38;5;34m"
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PUR="\e[38;5;35m"
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CYN="\e[38;5;36m"
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RST="\e[0m"
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lines() {
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printf '%s\n' "$max"
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}
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colorify() {
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eval "declare dummy=\"$1\""
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printf '%b' "$dummy"
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}
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shopt -s extglob
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ansi_filter() {
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local IFS=
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echo "${1//$'\e'[\[(]*([0-9;])[@-n]/}"
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}
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display() {
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# 1 - slide contents
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# 2 - slide name
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reduce=0
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# Print the contents of the slide file,
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# line by line.
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printf "%s" "$line"
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l=$(colorify "$line")
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printf '%s' "$l"
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case $line in
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"" | *"\n"*)
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((++reduce));;
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esac
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# Move down and back after each print.
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printf '\e[%sD\e[B' "$((${#line} - $reduce))"
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l=$(ansi_filter "$l")
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printf '\e[%sD\e[B' "$((${#l} - $reduce))"
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done <<< "$slide_contents"
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}