File: nn.sh 1 #!/bin/sh 2 3 # The MIT License (MIT) 4 # 5 # Copyright (c) 2026 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 # nn [option...] [files...] 27 # 28 # 29 # Nice Numbers restyles all runs of 4+ digits by alternating ANSI-styles 30 # every 3-digit group, so long numbers become easier to read at a glance. 31 # 32 # All (optional) leading options start with either single or double-dash, 33 # and most of them change the style/color used. Some of the options are, 34 # shown in their single-dash form: 35 # 36 # -h, -help show this help message 37 # 38 # -inv, -inverse use a highlighting/inverse style 39 # -hi, -hilite, -highlight use a highlighting/inverse style 40 # 41 # -b, -blue use a blue color 42 # -bold bold-style digits 43 # -g, -green use a green color 44 # -gray use a gray color (default) 45 # -m, -magenta use a magenta color 46 # -o, -orange use an orange color 47 # -p, -purple use a purple color 48 # -r, -red use a red color 49 # -u, -underline underline digits 50 51 52 buffered=0 53 54 case "$1" in 55 -b|--b|-buffered|--buffered) 56 buffered=1 57 shift 58 ;; 59 60 -h|--h|-help|--help) 61 awk '/^# +nn /, /^$/ { gsub(/^# ?/, ""); print }' "$0" 62 exit 0 63 ;; 64 esac 65 66 name="${1:-gray}" 67 [ $# -gt 0 ] && shift 68 69 [ "$1" = '--' ] && shift 70 71 # show all non-existing files given 72 failed=0 73 for arg in "$@"; do 74 if [ "${arg}" = "-" ]; then 75 continue 76 fi 77 if [ ! -e "${arg}" ]; then 78 printf "no file named \"%s\"\n" "${arg}" >&2 79 failed=1 80 fi 81 done 82 83 if [ "${failed}" -gt 0 ]; then 84 exit 2 85 fi 86 87 flush=0 88 if [ "${buffered}" -eq 0 ] && { [ -p /dev/stdout ] || [ -t 1 ]; }; then 89 flush=1 90 fi 91 92 awk -v flush="${flush}" -v name="${name}" ' 93 BEGIN { 94 orig = name 95 gsub(/^-{1,2}/, "", name) 96 97 # alias-lookup table 98 a["r"] = "red" 99 a["g"] = "green" 100 a["b"] = "blue" 101 a["o"] = "orange" 102 a["p"] = "purple" 103 a["m"] = "magenta" 104 a["h"] = "invert" 105 a["i"] = "invert" 106 a["u"] = "underline" 107 a["or"] = "orange" 108 a["ma"] = "magenta" 109 a["hi"] = "invert" 110 a["in"] = "invert" 111 a["un"] = "underline" 112 a["inv"] = "invert" 113 a["mag"] = "magenta" 114 a["grey"] = "gray" 115 a["inverse"] = "invert" 116 a["inverted"] = "invert" 117 a["hilite"] = "invert" 118 a["hilited"] = "invert" 119 a["highlight"] = "invert" 120 a["highlighted"] = "invert" 121 a["underlined"] = "underline" 122 a["bb"] = "blueback" 123 a["gb"] = "greenback" 124 a["mb"] = "magentaback" 125 a["ob"] = "orangeback" 126 a["pb"] = "purpleback" 127 a["rb"] = "redback" 128 a["bg"] = "greenback" 129 a["bm"] = "magentaback" 130 a["bo"] = "orangeback" 131 a["bp"] = "purpleback" 132 a["br"] = "redback" 133 a["bluebg"] = "blueback" 134 a["graybg"] = "grayback" 135 a["greenbg"] = "greenback" 136 a["greyback"] = "grayback" 137 a["greybg"] = "grayback" 138 a["magentabg"] = "magentaback" 139 a["orangebg"] = "orangeback" 140 a["purplebg"] = "purpleback" 141 a["redbg"] = "redback" 142 a["magback"] = "magentaback" 143 a["magbg"] = "magentaback" 144 a["orback"] = "orangeback" 145 a["orbg"] = "orangeback" 146 a["purback"] = "purpleback" 147 a["purbg"] = "purpleback" 148 149 # style-lookup table 150 s["red"] = "\x1b[38;2;204;0;0m" 151 s["green"] = "\x1b[38;2;0;135;95m" 152 s["blue"] = "\x1b[38;2;0;95;215m" 153 s["orange"] = "\x1b[38;2;215;95;0m" 154 s["purple"] = "\x1b[38;2;135;95;255m" 155 s["magenta"] = "\x1b[38;2;215;0;255m" 156 s["gray"] = "\x1b[38;2;168;168;168m" 157 s["bold"] = "\x1b[1m" 158 s["invert"] = "\x1b[7m" 159 s["italic"] = "\x1b[3m" 160 s["underline"] = "\x1b[4m" 161 s["blueback"] = "\x1b[48;2;0;95;215m\x1b[38;2;238;238;238m" 162 s["grayback"] = "\x1b[48;2;168;168;168m\x1b[38;2;238;238;238m" 163 s["greenback"] = "\x1b[48;2;0;135;95m\x1b[38;2;238;238;238m" 164 s["magentaback"] = "\x1b[48;2;215;0;255m\x1b[38;2;238;238;238m" 165 s["orangeback"] = "\x1b[48;2;215;95;0m\x1b[38;2;238;238;238m" 166 s["purpleback"] = "\x1b[48;2;135;95;255m\x1b[38;2;238;238;238m" 167 s["redback"] = "\x1b[48;2;204;0;0m\x1b[38;2;238;238;238m" 168 169 # resolve aliases 170 if (a[name] != "") name = a[name] 171 172 # handle unsupported style-names with an error 173 if (s[name] == "") { 174 printf "unsupported style/color name `%s`\n", orig > "/dev/stderr" 175 exit 1 176 } 177 178 # match ANSI-code to the name 179 style = s[name] 180 181 gensub(/./, "", "g", "") # fail before output, if gensub not available 182 r18 = sprintf("\\1%s\\2\x1b[0m\\3%s\\4\x1b[0m\\5%s\\6\x1b[0m\\7", style, style, style, style) 183 r15 = sprintf("\\1%s\\2\x1b[0m\\3%s\\4\x1b[0m\\5%s\\6\x1b[0m", style, style, style) 184 r12 = sprintf("\\1%s\\2\x1b[0m\\3%s\\4\x1b[0m\\5", style, style) 185 r9 = sprintf("\\1%s\\2\x1b[0m\\3%s\\4\x1b[0m", style, style) 186 r6 = sprintf("\\1%s\\2\x1b[0m\\3", style) 187 r3 = sprintf("\\1%s\\2\x1b[0m", style) 188 } 189 190 # (re)style all long-enough digit-runs/numbers in lines 191 { 192 s = $0 193 194 # ignore screen/buffer-switching ANSI-codes, to avoid corrupting them 195 gsub(/\x1b\[([0-9]{4,}[A-Za-z])/, "", s) 196 197 # give up on restyling numbers on lines with any very long numbers, to 198 # avoid any misleading restyling 199 if (s ~ /[0-9]{22,}/) { 200 print 201 if (flush) fflush() 202 next 203 } 204 205 s = gensub(/([0-9]{1,3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})/, r18, "g", s) 206 s = gensub(/([0-9]{1,3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})/, r15, "g", s) 207 s = gensub(/([0-9]{1,3})([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{3})/, r12, "g", s) 208 s = gensub(/([0-9]{1,3})([0-9]{3})([0-9]{3})([0-9]{3})/, r9, "g", s) 209 s = gensub(/([0-9]{1,3})([0-9]{3})([0-9]{3})/, r6, "g", s) 210 s = gensub(/([0-9]{1,3})([0-9]{3})/, r3, "g", s) 211 print s 212 if (flush) fflush() 213 } 214 ' "$@"