File: jawk.sh
   1 #!/bin/sh
   2 
   3 # The MIT License (MIT)
   4 #
   5 # Copyright © 2020-2025 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 # jawk [good condition...] [bad condition...] [meh condition...] [filenames...]
  27 #
  28 # Judge with AWK colors lines using up to 3 (optional) AWK conditions, named
  29 # `good` (green), `bad` (red), and `meh` (gray) respectively. Lines failing
  30 # all the conditions given are shown back verbatim.
  31 
  32 
  33 
  34 # case "$1" in
  35 #     -h|--h|-help|--help)
  36 #         awk '/^# +jawk /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  37 #         exit 0
  38 #     ;;
  39 # esac
  40 
  41 good="${1:-0}"
  42 bad="${2:-0}"
  43 meh="${3:-0}"
  44 
  45 [ $# -gt 0 ] && shift
  46 [ $# -gt 0 ] && shift
  47 [ $# -gt 0 ] && shift
  48 
  49 awk '
  50 { low = lower = tolower($0) }
  51 
  52 '"${good}"' {
  53     # code to use a color-blind-friendlier blue, instead of green
  54     # gsub(/\x1b\[0m/, "\x1b[0m\x1b[38;2;0;95;215m")
  55     # printf "\x1b[38;2;0;95;215m%s\x1b[0m\n", $0; fflush()
  56 
  57     gsub(/\x1b\[0m/, "\x1b[0m\x1b[38;2;0;135;95m")
  58     printf "\x1b[38;2;0;135;95m%s\x1b[0m\n", $0; fflush()
  59     next
  60 }
  61 
  62 '"${bad}"' {
  63     gsub(/\x1b\[0m/, "\x1b[0m\x1b[38;2;204;0;0m")
  64     printf "\x1b[38;2;204;0;0m%s\x1b[0m\n", $0; fflush()
  65     next
  66 }
  67 
  68 '"${meh}"' {
  69     gsub(/\x1b\[0m/, "\x1b[0m\x1b[38;2;168;168;168m")
  70     printf "\x1b[38;2;168;168;168m%s\x1b[0m\n", $0; fflush()
  71     next
  72 }
  73 
  74 { print; fflush() }
  75 ' "$@"