Color regex matches - without dropping misses

list_stuff | color_grep "make_this_stand_out_but_dont_hide_the_rest"

function sedgrep ()
{
    C_PATT=`echo -e '33[33;01m'`
    C_NORM=`echo -e '33[m'`

    sed -s "s/$1/${C_PATT}&${C_NORM}/gi"
}

function color_grep {
    sed s/$1/$fg[yellow]$1$terminfo[sgr0]/g
}

autoload colors zsh/terminfo

function colormatch ()
{
    tee - | grep --color=always $1 | sort | uniq
}

#!/bin/sh
while read line
do
  if test `expr "$line" : "==>.*"`  -eq 0 ;
  then
    printf '33[0m%sn' "$line"
  else
    printf '33[0;31m%sn' "$line"
  fi
done

regexp=.*red
colours="33[38;5;160m"
count=once