zsh-workers

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 #compdef pdf2dsc pdf2ps pdfimages pdfinfo pdftopbm pdftops pdftotext pdfopt pdffonts kpdf apvlv epdfview

local expl ext=''

# ghostscript:
#  pdf2dsc pdf2ps pdfopt
# xpdf:
#  pdfimages pdfinfo pdftopbm pdftops pdftotext xpdf pdffonts
# KDE 3:
#  kpdf
# KDE 4:
#  okular

if [[ "$1" == '-z' ]]; then
  ext='(|.bz2|.gz|.Z)'
  shift
fi

_description files expl 'PDF file'
_files "$@" "$expl[@]" -g "*.(#i)pdf$ext(-.)"