os/modules/terminal-life/nvim/preview-file.nix

self:
with self; ''
  IFS=':' read -r -a INPUT <<< "$1"
  FILE=''${INPUT[0]}
  CENTER=''${INPUT[1]}

  if [[ "$1" =~ ^[A-Za-z]:\\ ]]; then
    FILE=$FILE:''${INPUT[1]}
    CENTER=''${INPUT[2]}
  fi

  if [[ -n "$CENTER" && ! "$CENTER" =~ ^[0-9] ]]; then
    exit 1
  fi
  CENTER=''${CENTER/[^0-9]*/}

  FILE="''${FILE/#\~\//$HOME/}"
  if [ ! -r "$FILE" ]; then
    echo "File not found ''${FILE}"
    exit 1
  fi

  if [ -z "$CENTER" ]; then
    CENTER=0
  fi

  exec cat "$FILE" \
    | sed -e '/[#|\/\/ ?]-- copyright/,/[#\/\/]++/c\\' \
    | ${pkgs.coreutils}/bin/tr -s '\n' \
    | ${pkgs.bat}/bin/bat \
    --style="''${BAT_STYLE:-numbers}" \
    --color=always \
    --pager=never \
    --file-name="''$FILE" \
    --highlight-line=$CENTER
''