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#autoload

# Usage: _urls [-f]
# Options:
#  -f : complete files.

# To complete URLs, you must make a URL database locally such as:
#
# % cd ~/.zsh/urls
# % find . -ls
# ... drwxr-xr-x ... 512 Sep  3 02:46 .
# ... drwxr-xr-x ... 512 Sep  3 02:48 ./http
# ... drwxr-xr-x ... 512 Sep  3 02:52 ./http/www.zsh.org
# ... drwxr-xr-x ... 512 Sep  3 03:01 ./http/www.zsh.org/mla
# ... drwxr-xr-x ... 512 Sep  3 03:01 ./http/www.zsh.org/mla/workers
# ... drwxr-xr-x ... 512 Sep  3 03:01 ./http/www.zsh.org/mla/workers/1999
# ... -rw-r--r-- ...   0 Sep  3 03:01 ./http/www.zsh.org/mla/workers/1999/index.html
# ... drwxr-xr-x ... 512 Sep  3 02:48 ./http/sunsite.auc.dk
# ... drwxr-xr-x ... 512 Sep  3 02:48 ./http/sunsite.auc.dk/zsh
# ... drwxr-xr-x ... 512 Sep  3 02:47 ./bookmark
# ... drwxr-xr-x ... 512 Sep  3 02:48 ./bookmark/zsh
# ... -rw-r--r-- ...  27 Sep  3 02:47 ./bookmark/zsh/home
# ... -rw-r--r-- ...  20 Sep  3 02:48 ./bookmark/zsh/meta

local ipre scheme dirs files

if [[ "$1" = -f ]]; then
  shift
  _files "$@" && return
fi

if [[ -z "$compconfig[_urls_dir]" ]]; then
  compconfig[_urls_dir]=${ZDOTDIR:-$HOME}/.zsh/urls
fi

ipre="$IPREFIX"

if [[ -prefix [-+.a-z0-9]#: ]]; then
  scheme="${PREFIX%%:*}"
  compset -P "[-+.a-z0-9]#:"
else
  compadd -S '' http:// ftp:// bookmark:
  return
fi

case "$scheme" in
  http) compset -P // || { compadd "$@" -S '' //; return };;
  ftp) compset -P // || { compadd "$@" -S '' //; return };;
esac

if [[ "$scheme" = bookmark &&
      -f "$compconfig[_urls_dir]/$scheme/$PREFIX$SUFFIX" &&
      -s "$compconfig[_urls_dir]/$scheme/$PREFIX$SUFFIX" ]]; then
  compadd "$@" -QU -- "$ipre$(<"$compconfig[_urls_dir]/$scheme/$PREFIX$SUFFIX")"
else
  dirs=($compconfig[_urls_dir]/$scheme/$PREFIX*$SUFFIX(/:t))
  files=($compconfig[_urls_dir]/$scheme/$PREFIX*$SUFFIX(.:t))
  compset -P '*/'
  compadd "$@" -Q -S '/' - $dirs
  if [[ "$scheme" = bookmark ]]; then
    compadd "$@" -QS '' - $files
  else
    compadd "$@" -Q - $files
  fi
fi