add color

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 98 insertions, 0 deletions

diff --git a/color b/color
new file mode 100755
index 0000000..d02c0df
--- /dev/null
+++ b/color
@@ -0,0 +1,98 @@
+#!/bin/bash
+#
+# Simple colorize for bash by means of sed
+#
+# Copyright 2008+2012 by Andreas Schamanek <andreas@schamanek.net>
+# GPL licensed (see end of file) * Use at your own risk!
+#
+# Usage examples:
+#   tail -f somemaillog | mycolorize white '^From: .*' bell
+#   tail -f somemaillog | mycolorize white '^From: \/.*' green 'Folder: .*'
+#   tail -f somemaillog | mycolorize --unbuffered white '^From: .*'
+#
+# Notes:
+#   Regular expressions need to be suitable for _sed --regexp-extended_
+#   Slashes / need no escaping (we use ^A as delimiter).
+#   \/ splits the coloring (similar to procmailrc. Matches behind get color.
+#   Even "white '(for|to) \/(her|him).*$'" works :) Surprisingly ;)
+#   To color the string '\/' use the regular expression '\\()/'.
+#   If the 1st argument is -u or --unbuffered, _sed_ will be run so.
+
+# For the colors see tput(1) and terminfo(5), or e.g.
+# https://wiki.archlinux.org/index.php/Color_Bash_Prompt
+
+bold=$(tput bold)                         # make colors bold/bright
+#normal=$(tput sgr0)                      # normal text
+normal=$(echo -e "\e[0m")                 # (works better sometimes)
+
+red="$bold$(tput setaf 1)"                # bright red text
+green=$(tput setaf 2)                     # dim green text
+fawn=$(tput setaf 3); beige="$fawn"       # dark yellow text
+yellow="$bold$fawn"                       # bright yellow text
+darkblue=$(tput setaf 4)                  # dim blue text
+blue="$bold$darkblue"                     # bright blue text
+purple=$(tput setaf 5); magenta="$purple" # magenta text
+pink="$bold$purple"                       # bright magenta text
+darkcyan=$(tput setaf 6)                  # dim cyan text
+cyan="$bold$darkcyan"                     # bright cyan text
+gray=$(tput setaf 7)                      # dim white text
+white="$bold$gray"                        # bright white text
+
+bell=$(tput bel)                          # bell/beep
+
+# Make output unbuffered? (Pass argument -u|--unbuffered to _sed_.)
+if [ "/$1/" = '/-u/' -o "/$1/" = '/--unbuffered/' ] ; then
+   UNBUFFERED='-u'; shift
+else
+   UNBUFFERED=""
+fi
+
+# produce separator character ^A (for _sed_)
+A=$(echo | tr '\012' '\001')
+
+# compile all rules given at command line to 1 set of rules for SED
+while [ "/$1/" != '//' ] ; do
+  c1=''; re='';  beep=''
+  c1=$1 ; re="$2" ; shift 2
+  # if a beep is requested in the optional 3rd parameter set $beep
+  [ "/$1/" != '//' ] && [[ ( "$1" = 'bell' || "$1" = 'beep' ) ]] \
+    && beep=$bell && shift
+  # if the regular expression includes \/ we split the substitution
+  if [ "/${re/*\\\/*/}/" = '//' ] ; then
+     # we need to count "("s before the \/ (=$left)
+     left="${re%\\/*}"; leftlength=${#left}
+     # first we count "\("
+     dummy=${left//\\(}; escdgroups=$(( (leftlength-${#dummy})/2 ))
+     # now "(" (and we add 2 for the groups used for ($re) in $sedrules)
+     dummy=${left//(}; groupcnt=$((leftlength-${#dummy}-escdgroups+2))
+     # replace \/ with )( so below we get (left-re)(right-re)
+     re="${re/\\\//)(}"
+     sedrules="$sedrules;s$A($re)$A\1${!c1}\\$groupcnt$beep$normal${A}g"
+  else
+     sedrules="$sedrules;s$A($re)$A${!c1}\1$beep$normal${A}g"
+  fi
+
+done
+
+# call sed to do the main job
+sed $UNBUFFERED --regexp-extended -e "$sedrules"
+
+exit
+
+# License
+#
+# This script is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this script; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+# Boston, MA  02111-1307  USA
+