63 lines
1.4 KiB
Bash
Executable File
63 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# --------------------------------------
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# name: ccal
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# desc: portable colourized `cal`
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# main: jaidyn ann <jadedctrl@posteo.at>
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# --------------------------------------
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# On some systems, the `cal` command can't highlight the current day.
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# This version does it portably, only assuming you have POSIX `cal`.
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# To change the highlight colours, set the $CCAL_HEAD and $CCAL_TAIL
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# variables. $CCAL_HEAD should set the colours (ANSI codes etc), _TAIL should
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# reset colours, ofc.
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# Return today's date, YYYY-MM-DD
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function today {
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date +"%Y-%m-%d"
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}
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# Return the day of a given date
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function date_day {
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local date="$1"
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echo "$date" \
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| awk -F "-" '{print $3}'
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}
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# Concatenate three arguments into one non-delimited string
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function join_three {
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a="$1"
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b="$2"
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c="$3"
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echo "${a}${b}${c}"
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}
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# Color the given text from piped input, using giving head and tail as codes
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function colour_text {
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local text="$1"
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local head="$2"
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local tail="$3"
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sed 's%'"$text"'%'"$(join_three "$head" "$text" "$tail")"'%'
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}
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# Colourized form of `cal`
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function colourized_cal {
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cal $@ \
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| colour_text "$(date_day "$(today)")" "$CCAL_HEAD" "$CCAL_TAIL"
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}
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# Set colours if you haven't
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if test -z "$CCAL_HEAD"; then
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white_bg="$(tput setab 7 2>/dev/null)"
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black_fg="$(tput setaf 0 2>/dev/null)"
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bold="$(tput bold 2>/dev/null)"
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reset="$(tput sgr0)"
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CCAL_HEAD="${white_bg}${black_fg}${bold}"
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CCAL_TAIL="${reset}"
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fi
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colourized_cal $@
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