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资源说明：Emacs Speaks Statistics Drag and Drop Support
#+TITLE: Extend Drag and Drop
#+AUTHOR: Matthew L. Fidler
* Library Information
/extend-dnd.el/ --- R drag and Drop
- Filename :: [[file:extend-dnd.el][extend-dnd.el]]
- Description :: R Drag and Drop
- Author :: Matthew L. Fidler
- Maintainer :: Matthew L. Fidler
- Created :: Thu Feb 9 09:37:32 2012 (-0600)
- Version :: 0.5
- Last-Updated :: Fri Feb 10 20:59:30 2012 (-0600)
- By :: Matthew L. Fidler
- Update # :: 52
- URL :: https://github.com/mlf176f2/extend-dnd
- Keywords :: EXTEND, Drag and Drop
- Compatibility :: Tested with Emacs 24.
* Possible Dependencies
`assoc', `backquote', `button', `bytecomp', `cconv', `cl',
`dropdown-list', `easymenu', `help-fns', `help-mode',
`macroexp', `view', `warnings', `yasnippet', `yasnippet-bundle'.
* Introduction
I would like to drag files onto a ESS buffer and write the appropriate
code. Enter Extend drag and drop.
* Installation
To install, put the =extend-dnd.el= somewhere in your load path, and add
the following lines to your startup file, usually =~/.emacs=
#+BEGIN_SRC emacs-lisp
(require 'extend-dnd)
(extend-dnd-activate)
#+END_SRC
* Status and Future
Currently it only supports a few modes and extensions, but it is extendable.
* Working with Yasnippets
If you want extend-dnd to expand yasnippets based on the file name,
make sure that =yas/wrap-around-region= is set to be ='t= or ='cua=.
After you define a snippet in the major mode you are working with, and put
the file name as `yas/selected-text'. For example with R csv files
you could define
#+BEGIN_SRC: snippet
# -*- mode: snippet -*-
# name: Load CSV
# key: csv
# --
${1:$(concat "dat." (replace-regexp-in-string "^[.]" "" (replace-regexp-in-string "[.]$" "" (replace-regexp-in-string "[^A-Za-z.0-9]+" "." (file-name-sans-extension (file-name-nondirectory yas/text)) t t))))} <- read.csv("${1:`yas/selected-text`}");
#+END_SRC
Then once this has been defined press =C-cC-d= to add the extension to
the drag and drop list.
The extension will be expanded based on the =key= value. Therefore,
if you want more than one possible action for a particular file, give
it the same key.
For example, if you want the possibility to write to the csv you
dragged in, you may wish to have the snippet:
#+BEGIN_SRC: snippet
# -*- mode: snippet -*-
# name: Write csv
# key: csv
# --
write.csv(d,"${1:`yas/selected-text`}");
#+END_SRC
* Wish List/TODO
** TODO Support dired mode
** TODO Support inferior processes.
** TODO Allow generic Yasnippet expansion by key name (like dnd_csv will automatically do drag and drop for csv files)
* Functions
** Interactive Functions
** Internal Functions
* Variables
** Customizable Variables
** Internal Variables
* History
- 28-Mar-2013 :: When dragging in an org snippet with the latest emacs and org-mode, the buffer-file-name returns nil. Added extend-dnd-buffer-file-name to get the true buffer file name for calculation... (Matthew L. Fidler)
- 18-Dec-2012 :: Fixed yasnippet 0.8 problems (Matthew L. Fidler)
- 13-Dec-2012 :: Use org-readme to publish (Matthew L. Fidler)
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