#!/bin/bash
which sed >> /dev/null || exit 1
version=1.0b
editor="Norman Geist"
last="04 Jul 2016"
# NOTE: Brilliant pipeable tool to format input text into a table by
# NOTE: an configurable seperation string, similar to column
# NOTE: from util-linux, but we are smart enough to ignore
# NOTE: ANSI escape codes in our column width computation
# NOTE: means we handle colors properly ;-)
# BUG : none
addspace=1
seperator=$(echo -e " ")
columnW=()
columnT=()
while getopts "s:hp:V"v" opt; do
case $opt in
s ) seperator=$OPTARG;;
p ) addspace=$OPTARG;;
Vv ) echo "Version $version last edited by $editor ($last)"; exit 0;;
h ) echo "column2 [-s seperator] [-p padding] [-V]";v]"; exit 0;;
* ) echo "Unknow comandline switch \"$opt\""; exit 1
esac
done
shift $(($OPTIND-1))
if [ ${#seperator} -lt 1 ]; then
echo "Error) Please enter valid seperation string!"
exit 1
fi
if [ ${#addspace} -lt 1 ]; then
echo "Error) Please enter number of addional padding spaces!"
exit 1
fi
#args: string
function trimANSI()
{
TRIM=$1
TRIM=$(sed 's/\x1b\[[0-9;]*m//g' <<< $TRIM); #trim color codes
TRIM=$(sed 's/\x1b(B//g' <<< $TRIM); #trim sgr0 directive
echo $TRIM
}
#args: len
function pad()
{
for ((i=0; i<$1; i++))
do
echo -n " "
done
}
#read and measure cols
while read ROW
do
while IFS=$seperator read -ra COLS; do
ITEMC=0
for ITEM in "${COLS[@]}"; do
SITEM=$(trimANSI "$ITEM"); #quotes matter O_o
[ ${#columnW[$ITEMC]} -gt 0 ] || columnW[$ITEMC]=0
[ ${columnW[$ITEMC]} -lt ${#SITEM} ] && columnW[$ITEMC]=${#SITEM}
((ITEMC++))
done
columnT[${#columnT[@]}]="$ROW"
done <<< "$ROW"
done
#print formatted output
for ROW in "${columnT[@]}"
do
while IFS=$seperator read -ra COLS; do
ITEMC=0
for ITEM in "${COLS[@]}"; do
WIDTH=$(( ${columnW[$ITEMC]} + $addspace ))
SITEM=$(trimANSI "$ITEM"); #quotes matter O_o
PAD=$(($WIDTH-${#SITEM}))
if [ $ITEMC -ne 0 ]; then
pad $PAD
fi
echo -n "$ITEM"
if [ $ITEMC -eq 0 ]; then
pad $PAD
fi
((ITEMC++))
done
done <<< "$ROW"
echo ""
done
Example usage:
bold=$(tput bold)
normal=$(tput sgr0)
green=$(tput setaf 2)
column2 -s § << END
${bold}First Name§Last Name§City${normal}
${green}John§Wick${normal}§New York
${green}Max§Pattern${normal}§Denver
END
Output example:
enter image description here