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46 lines
No EOL
1.3 KiB
Bash
Executable file
46 lines
No EOL
1.3 KiB
Bash
Executable file
# Scrolling text
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LIMIT=12
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SEPERATOR=" ~~~ "
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SEPERATOR_LENGTH="$(echo ${#SEPERATOR})"
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i=1
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while :
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do
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# Get input and create the full string that will be used
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INPUT="$@"
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INPUT_LENGTH="$(echo ${#INPUT})"
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LOOPTAIL="$(echo $INPUT | cut -c -$LIMIT)"
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FULLSTRING="$(echo "$INPUT$SEPERATOR$LOOPTAIL")"
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if [ $INPUT_LENGTH -le $LIMIT ]; then
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# Song has a smaller title than the limit, so no need to scroll.
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echo -n " "
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#echo -e -n "$INPUT"
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#Justify - left
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#SPACES=$(($LIMIT-$INPUT_LENGTH+1))
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#echo -n "$INPUT" | awk -v spaces=$SPACES '{printf "%s%*.s\n", $0, spaces, " "}'
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#Justify - center
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SPACES_AFTER=$(($LIMIT-$(((${#INPUT}+$LIMIT)/2))))
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printf "%*s\n" $(((${#INPUT}+$LIMIT)/2 + 1)) "$INPUT" | awk -v spaces=$SPACES_AFTER '{printf "%s%*.s\n", $0, spaces, " "}'
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else
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LOOPTAIL="$(echo $INPUT | cut -c -$LIMIT)"
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FULLSTRING="$(echo "$INPUT$SEPERATOR$LOOPTAIL")"
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echo -n " "
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# Show only LIMIT characters, from i to i+LIMIT. Output scrolls due to incrementing i
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echo -n $FULLSTRING | cut -c $i-$(($LIMIT+$i))
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#echo -n $FULLSTRING | awk -v charlimit="$LIMIT" -v start="$i" '{print substr($0,start,charlimit)}'
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# If we have shown the full string, start over
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if [ $i -eq $(($INPUT_LENGTH+$SEPERATOR_LENGTH)) ]; then
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i=0
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fi
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i=$(($i+1))
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fi
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sleep 1
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done |