File: gbm.sh
   1 #!/bin/sh
   2 
   3 # The MIT License (MIT)
   4 #
   5 # Copyright © 2024 pacman64
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining a copy
   8 # of this software and associated documentation files (the “Software”), to deal
   9 # in the Software without restriction, including without limitation the rights
  10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 # copies of the Software, and to permit persons to whom the Software is
  12 # furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be included in
  15 # all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23 # SOFTWARE.
  24 
  25 
  26 # gbm [good condition...] [bad condition...] [meh condition...]
  27 #
  28 # Good, Bad, Meh colors lines using up to 3 AWK conditions, keeping all other
  29 # input lines verbatim.
  30 
  31 
  32 # handle leading options
  33 case "$1" in
  34     -h|--h|-help|--help)
  35         awk '/^# +gbm/, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  36         exit 0
  37     ;;
  38 esac
  39 
  40 good="${1:-0}"
  41 bad="${2:-0}"
  42 meh="${3:-0}"
  43 
  44 [ $# -gt 0 ] && shift
  45 [ $# -gt 0 ] && shift
  46 [ $# -gt 0 ] && shift
  47 
  48 awk "
  49     { l = low = lower = tolower(\$0) }
  50 
  51     ${good} {
  52         # code to use a color-blind-friendlier blue, instead of green
  53         # gsub(/\\x1b\\[0m/, \"\\x1b[0m\\x1b[38;5;26m\")
  54         # printf \"\\x1b[38;5;26m%s\\x1b[0m\\n\", \$0
  55         gsub(/\\x1b\\[0m/, \"\\x1b[0m\\x1b[38;5;29m\")
  56         printf \"\\x1b[38;5;29m%s\\x1b[0m\\n\", \$0
  57         fflush()
  58         next
  59     }
  60 
  61     ${bad} {
  62         gsub(/\\x1b\\[0m/, \"\\x1b[0m\\x1b[38;5;1m\")
  63         printf \"\\x1b[38;5;1m%s\\x1b[0m\\n\", \$0
  64         fflush()
  65         next
  66     }
  67 
  68     ${meh} {
  69         gsub(/\\x1b\\[0m/, \"\\x1b[0m\\x1b[38;5;248m\")
  70         printf \"\\x1b[38;5;248m%s\\x1b[0m\\n\", \$0
  71         fflush()
  72         next
  73     }
  74 
  75     {
  76         print
  77         fflush()
  78     }
  79 " "$@"