Re: [Ranger-users] enhance preview script

[Roman Z.]

Hi.

Good idea to use fmt, I was looking for a tool like fmt but didn't find
for some reason :)

Thanks for the patch, I applied it now, finally

Regards,
Roman

On Sun, Jan 30, 2011 at 10:34:39AM +0800, Liu Yubao wrote:
> [[ please Cc to me, I don't subscribe this list.]]
> 
> Hi,
> 
> I enhanced the script with the patch against master branch to add
> these features:
> 
> (1) add -l 10 to pdftotext to speed up the response, or ranger will
> freeze on my box
> (2) add -nopgbrk to suppress ^L in output of pdftotext
> (3) support w3m text web browser, this is installed in all Debian
> boxes by default
> (4) split long lines in output of preview mode for pdf/html as I don't
> like to press 'l' to scroll,
>      thus also make scope.sh return 0 in these cases to adapt width
> change of the preview column.
>      I don't split for output of highlight because I think they are
> often well formatted and don't
>      have too much long lines.
> 
> Hope they are useful.
> 
> Regards,
> Yubao Liu
> 
> diff --git a/ranger/data/scope.sh b/ranger/data/scope.sh
> index 754b54d..db184f9 100755
> --- a/ranger/data/scope.sh
> +++ b/ranger/data/scope.sh
> @@ -41,12 +41,13 @@ case "$extension" in
>                 exit 1;;
>         # PDF documents:
>         pdf)
> -               pdftotext -q "$path" - | head -n $maxln
> -               success && exit 3 || exit 1;;
> +               pdftotext -l 10 -nopgbrk -q "$path" - | head -n $maxln
> | fmt -s -w $width
> +               success && exit 0 || exit 1;;
>         # HTML Pages:
>         htm|html|xhtml)
> -               have lynx   && lynx   -dump "$path" | head -n $maxln && exit 5
> -               have elinks && elinks -dump "$path" | head -n $maxln && exit 5
> +               have w3m    && w3m    -dump "$path" | head -n $maxln |
> fmt -s -w $width && exit 0
> +               have lynx   && lynx   -dump "$path" | head -n $maxln |
> fmt -s -w $width && exit 0
> +               have elinks && elinks -dump "$path" | head -n $maxln |
> fmt -s -w $width && exit 0
>                 ;; # fall back to highlight/cat if theres no lynx/elinks
>  esac
>