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  # System clipboard integration
  #
  # This file has support for doing system clipboard copy and paste operations
  # from the command line in a generic cross-platform fashion.
  #
  # On OS X and Windows, the main system clipboard or "pasteboard" is used. On other
  # Unix-like OSes, this considers the X Windows CLIPBOARD selection to be the
  # "system clipboard", and the X Windows `xclip` command must be installed.
  
  # clipcopy - Copy data to clipboard
  #
  # Usage:
  #
  #  <command> | clipcopy    - copies stdin to clipboard
  #
  #  clipcopy <file>         - copies a file's contents to clipboard
  #
  function clipcopy() {
    emulate -L zsh
    local file=$1
    if [[ $OSTYPE == darwin* ]]; then
      if [[ -z $file ]]; then
        pbcopy
      else
        cat $file | pbcopy
      fi
    elif [[ $OSTYPE == cygwin* ]]; then
      if [[ -z $file ]]; then
        cat > /dev/clipboard
      else
        cat $file > /dev/clipboard
      fi
    else
      if which xclip &>/dev/null; then
        if [[ -z $file ]]; then
          xclip -in -selection clipboard
        else
          xclip -in -selection clipboard $file
        fi
      elif which xsel &>/dev/null; then
        if [[ -z $file ]]; then
          xsel --clipboard --input 
        else
          cat "$file" | xsel --clipboard --input
        fi
      else
        print "clipcopy: Platform $OSTYPE not supported or xclip/xsel not installed" >&2
        return 1
      fi
    fi
  }
  
  # clippaste - "Paste" data from clipboard to stdout
  #
  # Usage:
  #
  #   clippaste   - writes clipboard's contents to stdout
  #
  #   clippaste | <command>    - pastes contents and pipes it to another process
  #
  #   clippaste > <file>      - paste contents to a file
  #
  # Examples:
  #
  #   # Pipe to another process
  #   clippaste | grep foo
  #
  #   # Paste to a file
  #   clippaste > file.txt
  function clippaste() {
    emulate -L zsh
    if [[ $OSTYPE == darwin* ]]; then
      pbpaste
    elif [[ $OSTYPE == cygwin* ]]; then
      cat /dev/clipboard
    else
      if which xclip &>/dev/null; then
        xclip -out -selection clipboard
      elif which xsel &>/dev/null; then
        xsel --clipboard --output
      else
        print "clipcopy: Platform $OSTYPE not supported or xclip/xsel not installed" >&2
        return 1
      fi
    fi
  }