common/l2r.el

   1 ;;;_ org2blog/common/l2r.el --- Persistence for org2blog
   2
   3 ;;;_. Headers
   4 ;;;_ , License
   5 ;; Copyright (C) 2010  Tom Breton (Tehom)
   6
   7 ;; Author: Tom Breton (Tehom) <tehom@panix.com>
   8 ;; Keywords: lisp, internal
   9
  10 ;; This file is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; This file is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;;_ , Commentary:
  26
  27 ;; Acquisition functionality for particular modules is in the
  28 ;; respective modules (all two of them)
  29
  30
  31 ;;;_ , Requires
  32
  33 (require 'tinydb/persist)
  34
  35 ;;;_. Body
  36
  37 ;;;_ , Convert links as Atom indicates
  38 ;;;_  . Customization
  39 ;;Should be absolutized (another variable, internal?).  And should
  40 ;;fetch it on a per-directory basis.
  41 (defcustom org2blog/common/l2r-alist-file
  42    "~/.org2blog-local2remote-alist"
  43    "File that contains the persisting alist from local filenames to
  44 remote URLs"
  45    :type 'file
  46    :group 'org)
  47 ;;;_  . Variables
  48 (defvar org2blog/common/l2r-tq
  49    (tinydb-persist-make-q org2blog/common/l2r-alist-file '())
  50    "Tiny db object for org2blog/common/l2r" )
  51
  52 ;;;_  . org2blog/common/l2r-remote-url
  53 (defun org2blog/common/l2r-remote-url (path)
  54    "Return the persisting translation of PATH."
  55    (let*
  56       (  (path
  57             (if (string-match "file://" path)
  58                (substring path (match-end 0))
  59                path))
  60          (true-path (expand-file-name path)))
  61    (cadr
  62       (tinydb-alist-assoc org2blog/common/l2r-tq true-path))))
  63
  64 ;;;_  . org2blog/common/l2r-cvt-link
  65 (defun org2blog/common/l2r-cvt-link (opt-plist type path)
  66    "Convert arguments to (type path) list of the remote url."
  67    (declare (ignored opt-plist))
  68    (let
  69       ((cvted-path
  70           (org2blog/common/l2r-remote-url path)))
  71       (when cvted-path
  72          (list type cvted-path))))
  73
  74 ;;;_  . org2blog/common/l2r-store-remote-url
  75 (defun org2blog/common/l2r-store-remote-url (filepath url)
  76    "Persistingly store the translation from FILEPATH to URL."
  77    (assert (file-name-absolute-p filepath) t)
  78    (tinydb-alist-pushnew
  79       org2blog/common/l2r-tq filepath (list url)))
  80 ;;;_  . org2blog/common/l2r-store-remote-url-yx
  81 ;;;###autoload
  82 (defun org2blog/common/l2r-store-remote-url-yx (url filepath)
  83    "Persistingly store the translation from FILEPATH to URL.
  84 An arg-conformant version of `org2blog/common/l2r-store-remote-url'"
  85    (assert (file-name-absolute-p filepath) t)
  86    (tinydb-alist-pushnew
  87       org2blog/common/l2r-tq filepath (list url)))
  88
  89 ;;;_. Footers
  90 ;;;_ , Provides
  91
  92 (provide 'org2blog/common/l2r)
  93
  94 ;;;_ * Local emacs vars.
  95 ;;;_  + Local variables:
  96 ;;;_  + mode: allout
  97 ;;;_  + End:
  98
  99 ;;;_ , End
 100 ;;; org2blog/common/l2r.el ends here