Fixed timestamp editing.

Timestamp editing did not work correctly.  The deadline warning days
could not be edited, and editing the end of a time range did
not respect the new granularity.  Seems to work now.

ChangeLog

@@ -1,8 +1,13 @@
+2008-03-06  Carsten Dominik  <dominik@science.uva.nl>
+
+	* org.el (org-timestamp-change, org-modify-ts-extra)
+	(org-ts-regexp1): Fix timestamp editing.
+
 2008-03-05  Carsten Dominik  <dominik@science.uva.nl>
 
 	* org.el "htmlize"): Removed hack to fix face problem with
 	htmlize, it no longer seem necessary.
-	
+
 2008-03-05  Bastien Guerry  <bzg@altern.org>
 
 	* org.el (org-follow-link-hook): New hook.

org.el

@@ -5225,7 +5225,7 @@ This should be called after the variable `org-link-types' has changed."
 (defconst org-ts-regexp0 "\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\)\\([^]0-9>\r\n]*\\)\\(\\([0-9]\\{2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)"
   "Regular expression matching time strings for analysis.
 This one does not require the space after the date.")
-(defconst org-ts-regexp1 "\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\) \\([^]0-9>\r\n]*\\)\\(\\([0-9]\\{2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)"
+(defconst org-ts-regexp1 "\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\) +\\([^]-+0-9>\r\n ]*\\)\\( \\([0-9]\\{2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)"
   "Regular expression matching time strings for analysis.")
 (defconst org-ts-regexp2 (concat "<" org-ts-regexp1 "[^>\n]\\{0,16\\}>")
   "Regular expression matching time stamps, with groups.")
@@ -18631,7 +18631,7 @@ in the timestamp determines what will be changed."
 	    ts (match-string 0))
       (replace-match "")
       (if (string-match
-	   "\\(\\(-[012][0-9]:[0-5][0-9]\\)?\\( [-+][0-9]+[dwmy]\\)*\\)[]>]"
+	   "\\(\\(-[012][0-9]:[0-5][0-9]\\)?\\( +[-+][0-9]+[dwmy]\\)*\\)[]>]"
 	   ts)
 	  (setq extra (match-string 1 ts)))
       (if (string-match "^.\\{10\\}.*?[0-9]+:[0-9][0-9]" ts)
@@ -18652,7 +18652,7 @@ in the timestamp determines what will be changed."
 			 (+ (if (eq org-ts-what 'year) n 0)   (nth 5 time0))
 			 (nthcdr 6 time0)))
       (when (integerp org-ts-what)
-	(setq extra (org-modify-ts-extra extra org-ts-what n)))
+	(setq extra (org-modify-ts-extra extra org-ts-what n dm)))
       (if (eq what 'calendar)
 	  (let ((cal-date (org-get-date-from-calendar)))
 	    (setcar (nthcdr 4 time0) (nth 0 cal-date)) ; month
@@ -18673,11 +18673,11 @@ in the timestamp determines what will be changed."
 	  (org-recenter-calendar (time-to-days time))))))
 
 ;; FIXME: does not yet work for lead times
-(defun org-modify-ts-extra (s pos n)
+(defun org-modify-ts-extra (s pos n dm)
   "Change the different parts of the lead-time and repeat fields in timestamp."
   (let ((idx '(("d" . 0) ("w" . 1) ("m" . 2) ("y" . 3) ("d" . -1) ("y" . 4)))
-	ng h m new)
-    (when (string-match "\\(-\\([012][0-9]\\):\\([0-5][0-9]\\)\\)?\\( \\+\\([0-9]+\\)\\([dmwy]\\)\\)?" s)
+	ng h m new rem)
+    (when (string-match "\\(-\\([012][0-9]\\):\\([0-5][0-9]\\)\\)?\\( +\\+\\([0-9]+\\)\\([dmwy]\\)\\)?\\( +-\\([0-9]+\\)\\([dmwy]\\)\\)?" s)
       (cond
        ((or (org-pos-in-match-range pos 2)
 	    (org-pos-in-match-range pos 3))
@@ -18685,6 +18685,9 @@ in the timestamp determines what will be changed."
 	      h (string-to-number (match-string 2 s)))
 	(if (org-pos-in-match-range pos 2)
 	    (setq h (+ h n))
+	  (setq n (* dm (org-no-warnings (signum n))))
+	  (when (not (= 0 (setq rem (% m dm))))
+	    (setq m (+ m (if (> n 0) (- rem) (- dm rem)))))
 	  (setq m (+ m n)))
 	(if (< m 0) (setq m (+ m 60) h (1- h)))
 	(if (> m 59) (setq m (- m 60) h (1+ h)))
@@ -18693,8 +18696,13 @@ in the timestamp determines what will be changed."
        ((org-pos-in-match-range pos 6)
 	(setq ng 6 new (car (rassoc (+ n (cdr (assoc (match-string 6 s) idx))) idx))))
        ((org-pos-in-match-range pos 5)
-	(setq ng 5 new (format "%d" (max 1 (+ n (string-to-number (match-string 5 s))))))))
-
+	(setq ng 5 new (format "%d" (max 1 (+ n (string-to-number (match-string 5 s)))))))
+       
+       ((org-pos-in-match-range pos 9)
+	(setq ng 9 new (car (rassoc (+ n (cdr (assoc (match-string 9 s) idx))) idx))))
+       ((org-pos-in-match-range pos 8)
+	(setq ng 8 new (format "%d" (max 0 (+ n (string-to-number (match-string 8 s))))))))
+      
       (when ng
 	(setq s (concat
 		 (substring s 0 (match-beginning ng))