ledger/lisp/ldg-reconcile.el
2013-02-10 09:47:56 -07:00

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EmacsLisp

;;; ldg-reconcile.el --- Helper code for use with the "ledger" command-line tool
;; Copyright (C) 2003-2013 John Wiegley (johnw AT gnu DOT org)
;; This file is not part of GNU Emacs.
;; This is free software; you can redistribute it and/or modify it under
;; the terms of the GNU General Public License as published by the Free
;; Software Foundation; either version 2, or (at your option) any later
;; version.
;;
;; This is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
;; for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
;; MA 02111-1307, USA.
;; Reconcile mode
(defvar ledger-buf nil)
(defvar ledger-bufs nil)
(defvar ledger-acct nil)
(defcustom ledger-recon-buffer-name "*Reconcile*"
"Name to use for reconciliation window"
:group 'ledger)
(defcustom ledger-fold-on-reconcile t
"if t, limit transactions shown in main buffer to those
matching the reconcile regex"
:type 'boolean
:group 'ledger)
(defcustom ledger-buffer-tracks-reconcile-buffer t
"if t, then when the cursor is moved to a new xact in the recon
window, then that transaction will be shown in its source
buffer."
:type 'boolean
:group 'ledger)
(defcustom ledger-reconcile-force-window-bottom nil
"If t make the reconcile window appear along the bottom of the
register window and resize"
:type 'boolean
:group 'ledger)
(defun ledger-display-balance ()
"Calculate the cleared balance of the account being reconciled"
(interactive)
(let ((buffer ledger-buf)
(account ledger-acct))
(with-temp-buffer
(ledger-exec-ledger buffer (current-buffer) "-C" "balance" account)
(goto-char (1- (point-max)))
(goto-char (line-beginning-position))
(delete-horizontal-space)
(message "Cleared balance = %s"
(buffer-substring-no-properties (point)
(line-end-position))))))
(defun is-stdin (file)
"True if ledger file is standard input"
(or
(equal file "")
(equal file "<stdin>")
(equal file "/dev/stdin")))
(defun ledger-reconcile-get-buffer (where)
(if (bufferp (car where))
(car where)
(error "buffer not set")))
(defun ledger-reconcile-toggle ()
(interactive)
(let ((where (get-text-property (point) 'where))
(account ledger-acct)
(inhibit-read-only t)
cleared)
(when (ledger-reconcile-get-buffer where)
(with-current-buffer (ledger-reconcile-get-buffer where)
(goto-char (cdr where))
(setq cleared (ledger-toggle-current)))
;remove the existing face and add the new face
(remove-text-properties (line-beginning-position)
(line-end-position)
(list 'face))
(if cleared
(add-text-properties (line-beginning-position)
(line-end-position)
(list 'face 'ledger-font-reconciler-cleared-face ))
(add-text-properties (line-beginning-position)
(line-end-position)
(list 'face 'ledger-font-reconciler-uncleared-face ))))
(forward-line)
(ledger-display-balance)))
(defun ledger-reconcile-new-account (account)
(interactive "sAccount to reconcile: ")
(set (make-local-variable 'ledger-acct) account)
(let ((buf (current-buffer)))
(if ledger-fold-on-reconcile
(ledger-occur-change-regex account ledger-buf))
(set-buffer buf)
(ledger-reconcile-refresh)))
(defun ledger-reconcile-refresh ()
(interactive)
(let ((inhibit-read-only t)
(line (count-lines (point-min) (point))))
(erase-buffer)
(ledger-do-reconcile)
(set-buffer-modified-p t)
(goto-char (point-min))
(forward-line line)))
(defun ledger-reconcile-refresh-after-save ()
(let ((buf (get-buffer ledger-recon-buffer-name)))
(if buf
(with-current-buffer buf
(ledger-reconcile-refresh)
(set-buffer-modified-p nil)))))
(defun ledger-reconcile-add ()
(interactive)
(with-current-buffer ledger-buf
(call-interactively #'ledger-add-entry))
(ledger-reconcile-refresh))
(defun ledger-reconcile-delete ()
(interactive)
(let ((where (get-text-property (point) 'where)))
(when (ledger-reconcile-get-buffer where)
(with-current-buffer (ledger-reconcile-get-buffer where)
(goto-char (cdr where))
(ledger-delete-current-entry))
(let ((inhibit-read-only t))
(goto-char (line-beginning-position))
(delete-region (point) (1+ (line-end-position)))
(set-buffer-modified-p t)))))
(defun ledger-reconcile-visit (&optional come-back)
(interactive)
(progn
(beginning-of-line)
(let* ((where (get-text-property (1+ (point)) 'where))
(target-buffer (if where
(ledger-reconcile-get-buffer where)
nil))
(cur-buf (current-buffer)))
(when target-buffer
(switch-to-buffer-other-window target-buffer)
(goto-char (cdr where))
(recenter)
(ledger-highlight-xact-under-point)
(if come-back
(switch-to-buffer-other-window cur-buf))))))
(defun ledger-reconcile-save ()
(interactive)
(dolist (buf (cons ledger-buf ledger-bufs))
(with-current-buffer buf
(save-buffer)))
(set-buffer-modified-p nil)
(ledger-display-balance))
(defun ledger-reconcile-quit ()
(interactive)
(let ((buf ledger-buf)
(reconcile-buf (current-buffer)))
(with-current-buffer ledger-buf
(remove-hook 'after-save-hook 'ledger-reconcile-refresh-after-save t))
;Make sure you delete the window before you delete the buffer,
;otherwise, madness ensues
(delete-window (get-buffer-window reconcile-buf))
(kill-buffer reconcile-buf)
(if ledger-fold-on-reconcile
(ledger-occur-quit-buffer buf))))
(defun ledger-marker-where-xact-is (emacs-xact)
"find the position of the xact in the ledger-buf buffer using
the emacs output from ledger, return the buffer and a marker
to the beginning of the xact in that buffer"
(let ((buf (if (is-stdin (nth 0 emacs-xact))
ledger-buf
(find-file-noselect (nth 0 emacs-xact)))))
(with-current-buffer buf
(cons
buf
(save-excursion
(if ledger-clear-whole-entries
(goto-line (nth 1 emacs-xact))
(goto-line (nth 0 (nth 5 emacs-xact))))
(point-marker))))))
(defun ledger-do-reconcile ()
"get the uncleared transactions in the account and display them
in the *Reconcile* buffer"
(let* ((buf ledger-buf)
(account ledger-acct)
(items
(with-temp-buffer
(ledger-exec-ledger buf (current-buffer)
"--uncleared" "--real" "emacs" account)
(goto-char (point-min))
(unless (eobp)
(unless (looking-at "(")
(error (buffer-string)))
(read (current-buffer))))))
(if (> (length items) 0)
(progn
(dolist (item items)
(let ((index 1))
(dolist (xact (nthcdr 5 item))
(let ((beg (point))
(where (ledger-marker-where-xact-is item)))
(insert (format "%s %-4s %-30s %-30s %15s\n"
(format-time-string "%Y/%m/%d" (nth 2 item))
(if (nth 3 item)
(nth 3 item)
"")
(nth 4 item) (nth 1 xact) (nth 2 xact)))
(if (nth 3 xact)
(set-text-properties beg (1- (point))
(list 'face 'ledger-font-reconciler-cleared-face
'where where))
(set-text-properties beg (1- (point))
(list 'face 'ledger-font-reconciler-uncleared-face
'where where))))
(setq index (1+ index)))))
(goto-char (point-max))
(delete-char -1))
(insert (concat "There are no uncleared entries for " account)))
(goto-char (point-min))
(set-buffer-modified-p nil)
(toggle-read-only t)
; this next piece of code ensures that the last of the visible
; transactions in the ledger buffer is at the bottom of the
; main window. The key to this is to ensure the window is selected
; when the buffer point is moved and recentered. If they aren't
; strange things happen.
(let
((recon-window (get-buffer-window (get-buffer ledger-recon-buffer-name))))
(fit-window-to-buffer recon-window)
(with-current-buffer buf
(select-window (get-buffer-window buf))
(goto-char (point-max))
(recenter -1))
(select-window recon-window)
(add-hook 'post-command-hook 'ledger-reconcile-track-xact nil t)
(ledger-reconcile-visit t))))
(defun ledger-reconcile-track-xact ()
(if (member this-command (list 'next-line
'previous-line
'mouse-set-point
'ledger-reconcile-toggle))
(if ledger-buffer-tracks-reconcile-buffer
(save-excursion
(ledger-reconcile-visit t)))))
(defun ledger-reconcile (account)
(interactive "sAccount to reconcile: ")
(let ((buf (current-buffer))
(rbuf (get-buffer ledger-recon-buffer-name)))
(if rbuf
(progn
(quit-window (get-buffer-window rbuf))
(kill-buffer rbuf)))
(add-hook 'after-save-hook 'ledger-reconcile-refresh-after-save nil t)
(if ledger-fold-on-reconcile
(ledger-occur-mode account buf))
(with-current-buffer
(if ledger-reconcile-force-window-bottom
;create the *Reconcile* window directly below the ledger
;buffer.
(progn
(set-window-buffer
(split-window (get-buffer-window (current-buffer)) nil nil)
(get-buffer-create ledger-recon-buffer-name))
(get-buffer ledger-recon-buffer-name))
(pop-to-buffer (get-buffer-create ledger-recon-buffer-name)))
(ledger-reconcile-mode)
(set (make-local-variable 'ledger-buf) buf)
(set (make-local-variable 'ledger-acct) account)
(ledger-do-reconcile))))
(defvar ledger-reconcile-mode-abbrev-table)
(define-derived-mode ledger-reconcile-mode text-mode "Reconcile"
"A mode for reconciling ledger entries."
(let ((map (make-sparse-keymap)))
(define-key map [(control ?m)] 'ledger-reconcile-visit)
(define-key map [return] 'ledger-reconcile-visit)
(define-key map [(control ?l)] 'ledger-reconcile-refresh)
(define-key map [? ] 'ledger-reconcile-toggle)
(define-key map [?a] 'ledger-reconcile-add)
(define-key map [?d] 'ledger-reconcile-delete)
(define-key map [?g] 'ledger-reconcile-new-account)
(define-key map [?n] 'next-line)
(define-key map [?p] 'previous-line)
(define-key map [?s] 'ledger-reconcile-save)
(define-key map [?q] 'ledger-reconcile-quit)
(define-key map [?b] 'ledger-display-balance)
(define-key map [menu-bar] (make-sparse-keymap "ldg-recon-menu"))
(define-key map [menu-bar ldg-recon-menu] (cons "Reconcile" map))
(define-key map [menu-bar ldg-recon-menu qui] '("Quit" . ledger-reconcile-quit))
(define-key map [menu-bar ldg-recon-menu sep1] '("--"))
(define-key map [menu-bar ldg-recon-menu pre] '("Previous Entry" . previous-line))
(define-key map [menu-bar ldg-recon-menu vis] '("Visit Entry" . ledger-reconcile-visit))
(define-key map [menu-bar ldg-recon-menu nex] '("Next Entry" . next-line))
(define-key map [menu-bar ldg-recon-menu sep2] '("--"))
(define-key map [menu-bar ldg-recon-menu del] '("Delete Entry" . ledger-reconcile-delete))
(define-key map [menu-bar ldg-recon-menu add] '("Add Entry" . ledger-reconcile-add))
(define-key map [menu-bar ldg-recon-menu tog] '("Toggle Entry" . ledger-reconcile-toggle))
(define-key map [menu-bar ldg-recon-menu sep3] '("--"))
(define-key map [menu-bar ldg-recon-menu bal] '("Show Cleared Balance" . ledger-display-balance))
(define-key map [menu-bar ldg-recon-menu sep4] '("--"))
(define-key map [menu-bar ldg-recon-menu rna] '("Reconcile New Account" . ledger-reconcile-new-account))
(define-key map [menu-bar ldg-recon-menu ref] '("Refresh" . ledger-reconcile-refresh))
(define-key map [menu-bar ldg-recon-menu sav] '("Save" . ledger-reconcile-save))
(use-local-map map)))
(provide 'ldg-reconcile)