[PATCH] Fancy rc startup style RFC

[Anish Mistry]

On Tuesday 18 April 2006 16:35, Eric Anderson wrote:
> Gordon Bergling wrote:
> > * Thus spake Eric Anderson (anderson at centtech.com):
> >> Peter Jeremy wrote:
> >>> On Tue, 2006-Apr-18 14:02:07 -0400, Coleman Kane wrote:
> >>>
> >>> A few comments on the shellscript:
> >>>> +			rcargsize=`echo $rc_arg`
> >>>> +			rcargsize=${#rcargsize}
> >>>
> >>> Try			rcargsize=$((${#rc_arg} + 1))
> >>>
> >>>> -				    return 1
> >>>> +				    (echo_fancy "FAILED" `expr 10 +
> >>>> $rcargsize - 1`) && return 1
> >>>
> >>> Try				    echo_fancy "FAILED" $((10 + $rcargsize -
> >>> 1)) && return 1
> >>>
> >>>> +echo_fancy () {
> >>>
> >>> ...
> >>>
> >>>> +	namesize=`echo -n $name`
> >>>> +	namesize=${#namesize}
> >>>
> >>> or	namesize=${#name}
> >>>
> >>>> +	padding=""
> >>>> +	paddingsize=$(($columns - 15 - $2 - $namesize))
> >>>> +	until [ 0 = ${paddingsize} ]; do
> >>>> +		padding=" $padding"
> >>>> +		paddingsize=$(($paddingsize - 1))
> >>>> +	done
> >>>
> >>> This particular block of code appears unnecessary (since
> >>> $padding is unused).
> >>
> >> I must be missing something, because I'm pretty sure it's used..
> >> What did I miss?
> >>
> >>>> +			paddingsize=$((60 - $namesize - $rc_argsize))
> >>>> +			until [ 0 = ${paddingsize} ]; do
> >>>> +		  		padding=" $padding"
> >>>> +		  		paddingsize=$(($paddingsize - 1))
> >>>> +			done
> >>>
> >>> For safety, the conditions should probably be [ 0 -ge
> >>> ${paddingsize} ] I don't see any alternative to the until loop.
> >>>  If efficiency turns out to be a real issue then you could try
> >>> doing the expansion in multiple goes.  Eg:
> >>>
> >>> 			until [ 8 -gt ${paddingsize} ]; do
> >>> 		  		padding="        $padding"
> >>> 		  		paddingsize=$(($paddingsize - 8))
> >>> 			done
> >>> 			until [ 0 -ge ${paddingsize} ]; do
> >>> 		  		padding=" $padding"
> >>> 		  		paddingsize=$(($paddingsize - 1))
> >>> 			done
> >>
> >> Thanks for the hints.  I was testing the same changes to the
> >> namesize/etc as you suggested, and it does work and is more
> >> readable and more efficient.
> >>
> >> I've included your suggestions and put the latest changes here:
> >>
> >> http://www.googlebit.com/freebsd/patches/rc_fancy.patch-3
> >
> > Patch -3 is working good here. :)
> >
> > best regards,
> >
> > 	Gordon
> >
> > PS: next try... fancy_color_rc="YES" ;)
>
> If I could figure out how to make sh do colors, I'd do it. :)
Is that all? :)
#!/bin/sh
############################################################
# Nico Golde <nico(at)ngolde.de> Homepage: http://www.ngolde.de
# Last change: Mon Feb 16 16:24:41 CET 2004
############################################################

for attr in 0 1 4 5 7 ; do
    
echo "----------------------------------------------------------------"
    printf "ESC[%s;Foreground;Background - \n" $attr
    for fore in 30 31 32 33 34 35 36 37; do
        for back in 40 41 42 43 44 45 46 47; do
            printf '\033[%s;%s;%sm %02s;%02s  ' $attr $fore $back 
$fore $back
        done
    printf '\n'
    done
    printf '\033[0m'
done


-- 
Anish Mistry
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