Make complete play nice with auto alignment

lisp/ldg-complete.el

@@ -177,6 +177,51 @@ Does not use ledger xact"
       (if (re-search-backward "\\(\t\\| [ \t]\\)" nil t)
           (goto-char (match-end 0))))))
 
+
+(defun ledger-pcomplete (&optional interactively)
+  "Complete rip-off of pcomplete from pcomplete.el, only added
+ledger-magic-tab in the previos commads list so that
+ledger-magic-tab would cycle properly"
+  (interactive "p")
+  (if (and interactively
+	   pcomplete-cycle-completions
+	   pcomplete-current-completions
+	   (memq last-command '(ledger-magic-tab
+				ledger-pcomplete
+				pcomplete-expand-and-complete
+				pcomplete-reverse)))
+      (progn
+	(delete-backward-char pcomplete-last-completion-length)
+	(if (eq this-command 'pcomplete-reverse)
+	    (progn
+              (push (car (last pcomplete-current-completions))
+                    pcomplete-current-completions)
+	      (setcdr (last pcomplete-current-completions 2) nil))
+	  (nconc pcomplete-current-completions
+		 (list (car pcomplete-current-completions)))
+	  (setq pcomplete-current-completions
+		(cdr pcomplete-current-completions)))
+	(pcomplete-insert-entry pcomplete-last-completion-stub
+                                (car pcomplete-current-completions)
+				nil pcomplete-last-completion-raw))
+    (setq pcomplete-current-completions nil
+	  pcomplete-last-completion-raw nil)
+    (catch 'pcompleted
+      (let* ((pcomplete-stub)
+	     pcomplete-seen pcomplete-norm-func
+	     pcomplete-args pcomplete-last pcomplete-index
+	     (pcomplete-autolist pcomplete-autolist)
+	     (pcomplete-suffix-list pcomplete-suffix-list)
+	     (completions (pcomplete-completions))
+	     (result (pcomplete-do-complete pcomplete-stub completions)))
+	(and result
+	     (not (eq (car result) 'listed))
+	     (cdr result)
+	     (pcomplete-insert-entry pcomplete-stub (cdr result)
+				     (memq (car result)
+					   '(sole shortest))
+				     pcomplete-last-completion-raw))))))
+
 (provide 'ldg-complete)
 
 ;;; ldg-complete.el ends here

lisp/ldg-mode.el

@@ -44,13 +44,13 @@
   (interactive)
   (remove-overlays))
 
-(defun ledger-magic-tab ()
+(defun ledger-magic-tab (&optional interactively)
   "Decide what to with with <TAB> .
 Can be pcomplete, or align-posting"
-  (interactive)
+  (interactive "p")
   (if (and (> (point) 1) 
 	   (looking-back "[:A-Za-z0-9]" 1))
-      (pcomplete)
+      (ledger-pcomplete interactively)
       (ledger-post-align-postings)))
 
 (defvar ledger-mode-abbrev-table)

lisp/ldg-post.el

@@ -172,6 +172,9 @@ position, whichever is closer."
 region alight the posting on the current line."
   (interactive)
   (save-excursion
+    (if (or (not (mark))
+	    (not (use-region-p)))
+	(set-mark (point)))
     (let* ((mark-first (< (mark) (point)))
 	   (begin-region (if mark-first (mark) (point)))
 	   (end-region (if mark-first (point-marker) (mark-marker)))
@@ -180,8 +183,9 @@ region alight the posting on the current line."
       (goto-char end-region)
       (setq end-region (copy-marker (line-end-position)))
       (goto-char begin-region)
-      (setq begin-region (copy-marker (line-beginning-position)))
-      (goto-char begin-region)
+      (goto-char 
+       (setq begin-region 
+	     (copy-marker (line-beginning-position))))
       (while (or (setq acc-col (ledger-next-account (end-of-line-or-region end-region)))
 		 (< (point) (marker-position end-region)))
 	(when acc-col