#!/bin/bash
# count_zero 2006
# Distributed under the GPLv2
# Bash script to display USE flag descriptions for a given package 

rm -f /tmp/uses
uses=/tmp/uses
package=`emerge -pv --nodeps $1`
#list=`echo $package | grep $1 | grep -o \".*\" | sed 's/["%-]//g' | sed 's/\ /\n/g'`
#echo $package | grep $1 | grep -o \".*\" | sed 's/["%]//g' | sed 's/"/" /g'
#echo $package | sed 's/^.*\ \]\ //' | sed 's/\"\ .*/\"/' > uses
echo $package | sed 's/^.*\ \]\ //' | sed 's/\"\ .*/\"/' | sed 's/.*=\"//' | sed 's/"//' | sed '/Calculating/d' | sed '/These/d' | sed '/Total/d' | sed 's/[*%]//g' | sed 's/[a-zA-Z0-9]*\ /+&/g' | sed 's/-+/-/g' > $uses
list=`cat $uses | sed 's/[+-]//g'`
echo
#echo list = $list
echo $package | sed 's/^.*done! //' | sed 's/VIDEO.*//'
echo
echo
#echo uses = `cat $uses`
#for flag in `echo $list`
#	do 
#		grep $1:$flag\  /usr/portage/profiles/use.local.desc | sed 's/^.*://'
#		grep ^$flag\  /usr/portage/profiles/use.desc
#	done


#for each in `echo $uses`
#	do
#		term=`echo $each | sed 's/-.*//'`
#		if [[ "$term" == "" ]]
#		then echo $each
#		else echo +$each
#		fi
#done

for flag in `echo $list`
	do 
		if grep -q [-]$flag $uses
		then
		grep $1:$flag\  /usr/portage/profiles/use.local.desc | sed 's/^.*://' | sed 's/.*/-&/'
		grep ^$flag\  /usr/portage/profiles/use.desc | sed 's/.*/-&/'
		elif grep -q [+]$flag $uses
		then
		grep $1:$flag\  /usr/portage/profiles/use.local.desc | sed 's/^.*://' | sed 's/.*/+&/'
		grep ^$flag\  /usr/portage/profiles/use.desc | sed 's/.*/+&/'
		else :
		fi
	done