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Hello
I have found a bug with clock tables and even have localized the exact
point in org-clock.el where it occurs. I don’t know enough of the Org Mode
code base to figure out the best solution and submit a patch.
The general symptom is that if:
- You have org-update-all-dblocks added to org-export-first-hook with
the goal of ensuring that dynamic blocks are current before every export;
AND
- You are exporting only a region of the file, for example using C-c C-e
1 b (buffer/subtree export)
The Mark terminating the end of the region to be exported is carried into
the org-clocktable-write-default formatting function and the call of
(backward-delete-char
1) on line 2352 oforg-clock.el deletes a region (between the Mark of the
initial call and point, which is immediately before the #+END: construct of
the clock table). Deletion of the #+END: construct malforms the clock table
and ultimately the export fails leaving the Org file is a corrupt state.
1 Detailed steps to reproduce
1.1 Emacs Initialization
Launch Emacs clean:
/Applications/Emacs.app/Contents/MacOS/Emacs -Q
Add the update to org-export-first-hook by evaluating the follwing line in
*scratch*
(add-hook 'org-export-first-hook 'org-update-all-dblocks)
Report versions (note this report is done from the non-Git-HEAD Org 7.8.09
included with Emacs, but the problem also exists in HEAD):
M-x emacs-version
GNU Emacs 24.1.50.1 (x86_64-apple-darwin, NS apple-appkit-1038.36) of
2012-04-27 on bob.porkrind.org
M-x org-version
Org-mode version 7.8.09
1.2 Baseline and Error Tests
1.2.1 Test File
Open the following test file
* Project A#+BEGIN: clocktable :maxlevel 2 :scope subtree
Clock summary at [2012-04-27 Fri 14:30]
| Headline | Time | ||--------------+--------+------||
*Total time* | *2:59* | ||--------------+--------+------||
Project A | 2:59 | || Task A1 | | 2:00 || Task
A2 | | 0:59 | #+END:** Task A1
CLOCK: [2012-04-26 Fri 11:58]--[2012-04-26 Thu 13:58] => 2:00** Task A2
CLOCK: [2012-04-27 Fri 09:00]--[2012-04-27 Fri 09:59] => 0:59*
Project B** Task B1
1.2.2 Baseline test
Export the entire buffer as a baseline test
C-c C-e b
The result is as expected:
- A valid HTML export
- The Clock Summary line changes to reflect the current time (showing
that org-update-all-dblocks) ran correctly
1.2.3 Reproduce the Error
Put the cursor on the Project A line and attempt to export just the Project
A subtree
C-c C-e 1 b
The expected result is a (smaller than before) valid HTML export.
The actual result is:
- org-map-dblocks: Dynamic block not terminated in the echo area
- Lines between #+END: and Project B are deleted from the file resulting
in the following invalid Org file
#+STARTUP: showeverything
* Project A
#+BEGIN: clocktable :maxlevel 2 :scope subtree
Clock summary at [2012-04-27 Fri 14:15]
| Headline | Time | |
|--------------+--------+------|
| *Total time* | *2:59* | |
|--------------+--------+------|
| Project A | 2:59 | |
| Task A1 | | 2:00 |
| Task A2 | | 0:59 |
* Project B
1.3 Diagnosis
Tracing through org-clock.el I found the culprit on line 2352, if I add a
(debug) statement immediately before that line I see the following:
- on a normal clock table update (C-c C-c on the #+BEGIN: line) the
debugger enters and there is no region highlighted
- when trying the subtree export the debuggers enters and there is a
highlighted active region in test.org from the end of the table (Point)
to the end of the entire Project Asubtree (Mark, from the selection made
by the export subtree code)
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* Project A
#+BEGIN: clocktable :maxlevel 2 :scope subtree
Clock summary at [2012-04-27 Fri 13:02]
| Headline | Time | |
|--------------+--------+------|
| *Total time* | *2:59* | |
|--------------+--------+------|
| Project A | 2:59 | |
| Task A1 | | 2:00 |
| Task A2 | | 0:59 |
#+END:
** Task A1
CLOCK: [2012-04-26 Fri 11:58]--[2012-04-26 Thu 13:58] => 2:00
** Task A2
CLOCK: [2012-04-27 Fri 09:00]--[2012-04-27 Fri 09:59] => 0:59
* Project B
** Task B1