Merge branch 'next'

1 files changed, 113 insertions, 0 deletions

diff --git a/lisp/ldg-sort.el b/lisp/ldg-sort.el
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+;;; ldg-xact.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.
+
+
+
+;;; Commentary:
+;; 
+
+;;; Code:
+
+(defun ledger-next-record-function ()
+  "Move point to next transaction."
+  (if (re-search-forward  ledger-payee-any-status-regex nil t)
+      (goto-char (match-beginning 0))
+      (goto-char (point-max))))
+
+(defun ledger-end-record-function ()
+  "Move point to end of transaction."
+  (forward-paragraph))
+
+(defun ledger-sort-find-start ()
+  (if (re-search-forward ";.*Ledger-mode:.*Start sort" nil t)
+      (match-end 0)))
+
+(defun ledger-sort-find-end ()
+  (if (re-search-forward ";.*Ledger-mode:.*End sort" nil t)
+      (match-end 0)))
+
+(defun ledger-sort-insert-start-mark ()
+  (interactive)  
+  (save-excursion
+    (goto-char (point-min))
+    (if (ledger-sort-find-start)
+	 (delete-region (match-beginning 0) (match-end 0))))
+  (beginning-of-line)
+  (insert "\n; Ledger-mode: Start sort\n\n"))
+
+(defun ledger-sort-insert-end-mark ()
+  (interactive)  
+  (save-excursion
+    (goto-char (point-min))
+    (if (ledger-sort-find-end)
+	(delete-region (match-beginning 0) (match-end 0))))
+  (beginning-of-line)
+  (insert "\n; Ledger-mode: End sort\n\n"))
+
+(defun ledger-sort-startkey ()
+  "Return the actual date so the sort-subr doesn't sort onthe entire first line."
+  (buffer-substring-no-properties (point) (+ 10 (point))))
+
+(defun ledger-sort-region (beg end)
+  "Sort the region from BEG to END in chronological order."
+  (interactive "r") ;; load beg and end from point and mark
+		    ;; automagically
+  (let ((new-beg beg)
+	(new-end end))
+    (setq inhibit-modification-hooks t)
+    (save-excursion 
+      (save-restriction
+	(goto-char beg)
+	(ledger-next-record-function) ;; make sure point is at the
+				      ;; beginning of a xact
+	(setq new-beg (point))
+	(goto-char end)
+	(ledger-next-record-function) ;; make sure end of region is at
+				      ;; the beginning of next record
+				      ;; after the region
+	(setq new-end (point))
+	(narrow-to-region new-beg new-end)
+	(goto-char new-beg)
+
+	(let ((inhibit-field-text-motion t))
+	  (sort-subr
+	   nil
+	   'ledger-next-record-function
+	   'ledger-end-record-function
+	   'ledger-sort-startkey))))
+    (setq inhibit-modification-hooks nil)))
+
+(defun ledger-sort-buffer ()
+  "Sort the entire buffer."
+  (interactive)
+  (goto-char (point-min))
+  (let ((sort-start (ledger-sort-find-start))
+	(sort-end (ledger-sort-find-end)))
+    (ledger-sort-region (if sort-start
+			    sort-start
+			    (point-min)) 
+			(if sort-end
+			    sort-end
+			    (point-max)))))
+
+(provide 'ldg-sort)
+
+;;; ldg-sort.el ends here